hint back to llm when tool does not exist

Signed-off-by: Yordis Prieto <yordis.prieto@gmail.com>

.github/workflows/notify-discord.yml

@@ -0,0 +1,14 @@
+name: discord
+
+on:
+  release:
+    types: [published]   # fires only when a release is published
+
+jobs:
+  notify:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send nicely-formatted embed to Discord
+        uses: SethCohen/github-releases-to-discord@v1
+        with:
+          webhook_url: ${{ secrets.DISCORD_WEBHOOK }}

.github/workflows/opencode.yml

@@ -6,9 +6,14 @@ on:
 
 jobs:
   opencode:
-    if: startsWith(github.event.comment.body, 'hey opencode')
+    if: |
+      contains(github.event.comment.body, ' /oc') ||
+      startsWith(github.event.comment.body, '/oc') ||
+      contains(github.event.comment.body, ' /opencode') ||
+      startsWith(github.event.comment.body, '/opencode')
     runs-on: ubuntu-latest
     permissions:
+      contents: read
       id-token: write
     steps:
       - name: Checkout repository
@@ -17,8 +22,7 @@ jobs:
           fetch-depth: 1
 
       - name: Run opencode
-        uses: sst/opencode/sdks/github@dev
-        #uses: ./github-actions
+        uses: sst/opencode/github@latest
         env:
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
         with:

.github/workflows/publish-github-action.yml

@@ -0,0 +1,30 @@
+name: publish-github-action
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "github-v*.*.*"
+      - "!github-v1"
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+permissions:
+  contents: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - run: git fetch --force --tags
+
+      - name: Publish
+        run: |
+          git config --global user.email "opencode@sst.dev"
+          git config --global user.name "opencode"
+          ./script/publish
+        working-directory: ./github

.github/workflows/publish-vscode.yml

@@ -0,0 +1,36 @@
+name: publish-vscode
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "vscode-v*.*.*"
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+permissions:
+  contents: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: 1.2.17
+
+      - run: git fetch --force --tags
+      - run: bun install -g @vscode/vsce
+
+      - name: Publish
+        run: |
+          bun install
+          ./script/publish
+        working-directory: ./sdks/vscode
+        env:
+          VSCE_PAT: ${{ secrets.VSCE_PAT }}
+          OPENVSX_TOKEN: ${{ secrets.OPENVSX_TOKEN }}

.github/workflows/publish.yml

@@ -1,12 +1,17 @@
 name: publish
+run-name: "${{ format('v{0}', inputs.version) }}"
 
 on:
   workflow_dispatch:
-  push:
-    branches:
-      - dev
-    tags:
-      - "*"
+    inputs:
+      version:
+        description: "Version to publish"
+        required: true
+        type: string
+      title:
+        description: "Custom title for this run"
+        required: false
+        type: string
 
 concurrency: ${{ github.workflow }}-${{ github.ref }}
 
@@ -32,7 +37,16 @@ jobs:
 
       - uses: oven-sh/setup-bun@v2
         with:
-          bun-version: 1.2.17
+          bun-version: 1.2.19
+
+      - name: Cache ~/.bun
+        id: cache-bun
+        uses: actions/cache@v3
+        with:
+          path: ~/.bun
+          key: ${{ runner.os }}-bun-${{ hashFiles('bun.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-bun-
 
       - name: Install makepkg
         run: |
@@ -48,15 +62,12 @@ jobs:
           git config --global user.email "opencode@sst.dev"
           git config --global user.name "opencode"
 
+      - name: Install dependencies
+        run: bun install
+
       - name: Publish
         run: |
-          bun install
-          if [ "${{ startsWith(github.ref, 'refs/tags/') }}" = "true" ]; then
-            ./script/publish.ts
-          else
-            ./script/publish.ts --snapshot
-          fi
-        working-directory: ./packages/opencode
+          OPENCODE_VERSION=${{ inputs.version }} ./script/publish.ts
         env:
           GITHUB_TOKEN: ${{ secrets.SST_GITHUB_TOKEN }}
           AUR_KEY: ${{ secrets.AUR_KEY }}

.github/workflows/stats.yml

@@ -21,7 +21,7 @@ jobs:
           bun-version: latest
 
       - name: Run stats script
-        run: bun scripts/stats.ts
+        run: bun script/stats.ts
 
       - name: Commit stats
         run: |
@@ -30,3 +30,5 @@ jobs:
           git add STATS.md
           git diff --staged --quiet || git commit -m "ignore: update download stats $(date -I)"
           git push
+        env:
+          POSTHOG_KEY: ${{ secrets.POSTHOG_KEY }}

.github/workflows/typecheck.yml

@@ -0,0 +1,24 @@
+name: Typecheck
+
+on:
+  pull_request:
+    branches: [dev]
+  workflow_dispatch:
+
+jobs:
+  typecheck:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: 1.2.19
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Run typecheck
+        run: bun typecheck

.gitignore

@@ -1,8 +1,8 @@
 .DS_Store
 node_modules
-.opencode
 .sst
 .env
 .idea
 .vscode
 openapi.json
+playground

.opencode/agent/example-driven-docs-writer.md

@@ -0,0 +1,44 @@
+---
+description: >-
+  Use this agent when you need to create or improve documentation that requires
+  concrete examples to illustrate every concept. Examples include:
+  <example>Context: User has written a new API endpoint and needs documentation.
+  user: 'I just created a POST /users endpoint that accepts name and email
+  fields. Can you document this?' assistant: 'I'll use the
+  example-driven-docs-writer agent to create documentation with practical
+  examples for your API endpoint.' <commentary>Since the user needs
+  documentation with examples, use the example-driven-docs-writer agent to
+  create comprehensive docs with code samples.</commentary></example>
+  <example>Context: User has a complex configuration file that needs
+  documentation. user: 'This config file has multiple sections and I need docs
+  that show how each option works' assistant: 'Let me use the
+  example-driven-docs-writer agent to create documentation that breaks down each
+  configuration option with practical examples.' <commentary>The user needs
+  documentation that demonstrates configuration options, perfect for the
+  example-driven-docs-writer agent.</commentary></example>
+---
+You are an expert technical documentation writer who specializes in creating clear, example-rich documentation that never leaves readers guessing. Your core principle is that every concept must be immediately illustrated with concrete examples, code samples, or practical demonstrations.
+
+Your documentation approach:
+- Never write more than one sentence in any section without providing an example, code snippet, diagram, or practical illustration
+- Break up longer explanations with multiple examples showing different scenarios or use cases
+- Use concrete, realistic examples rather than abstract or placeholder content
+- Include both basic and advanced examples when covering complex topics
+- Show expected inputs, outputs, and results for all examples
+- Use code blocks, bullet points, tables, or other formatting to visually separate examples from explanatory text
+
+Structural requirements:
+- Start each section with a brief one-sentence explanation followed immediately by an example
+- For multi-step processes, provide an example after each step
+- Include error examples and edge cases alongside success scenarios
+- Use consistent formatting and naming conventions throughout examples
+- Ensure examples are copy-pasteable and functional when applicable
+
+Quality standards:
+- Verify that no paragraph exceeds one sentence without an accompanying example
+- Test that examples are accurate and would work in real scenarios
+- Ensure examples progress logically from simple to complex
+- Include context for when and why to use different approaches shown in examples
+- Provide troubleshooting examples for common issues
+
+When you receive a documentation request, immediately identify what needs examples and plan to illustrate every single concept, feature, or instruction with concrete demonstrations. Ask for clarification if you need more context to create realistic, useful examples.

.opencode/plugin/example.ts

@@ -0,0 +1,10 @@
+import { Plugin } from "./index"
+
+export const ExamplePlugin: Plugin = async ({ app, client, $ }) => {
+  return {
+    permission: {},
+    async "chat.params"(input, output) {
+      output.topP = 1
+    },
+  }
+}

AGENTS.md

@@ -1,15 +1,12 @@
-# TUI Agent Guidelines
+## IMPORTANT
 
-## Style
-
-- prefer single word variable/function names
-- avoid try catch where possible - prefer to let exceptions bubble up
-- avoid else statements where possible
-- do not make useless helper functions - inline functionality unless the
-  function is reusable or composable
-- prefer Bun apis
-
-## Workflow
-
-- you can regenerate the golang sdk by calling ./scripts/stainless.ts
-- we use bun for everything
+- Try to keep things in one function unless composable or reusable
+- DO NOT do unnecessary destructuring of variables
+- DO NOT use `else` statements unless necessary
+- DO NOT use `try`/`catch` if it can be avoided
+- AVOID `try`/`catch` where possible
+- AVOID `else` statements
+- AVOID using `any` type
+- AVOID `let` statements
+- PREFER single word variable names where possible
+- Use as many bun apis as possible like Bun.file()

README.md

@@ -30,7 +30,23 @@ brew install sst/tap/opencode      # macOS
 paru -S opencode-bin               # Arch Linux
 ```
 
-> **Note:** Remove versions older than 0.1.x before installing
+> [!TIP]
+> Remove versions older than 0.1.x before installing.
+
+#### Installation Directory
+
+The install script respects the following priority order for the installation path:
+
+1. `$OPENCODE_INSTALL_DIR` - Custom installation directory
+2. `$XDG_BIN_DIR` - XDG Base Directory Specification compliant path
+3. `$HOME/bin` - Standard user binary directory (if exists or can be created)
+4. `$HOME/.opencode/bin` - Default fallback
+
+```bash
+# Examples
+OPENCODE_INSTALL_DIR=/usr/local/bin curl -fsSL https://opencode.ai/install | bash
+XDG_BIN_DIR=$HOME/.local/bin curl -fsSL https://opencode.ai/install | bash
+```
 
 ### Documentation
 
@@ -38,24 +54,25 @@ For more info on how to configure opencode [**head over to our docs**](https://o
 
 ### Contributing
 
-WE DO NOT ACCEPT PRs FOR CORE FEATURES
-
 opencode is an opinionated tool so any fundamental feature needs to go through a
 design process with the core team.
 
+> [!IMPORTANT]
+> We do not accept PRs for core features.
+
 However we still merge a ton of PRs - you can contribute:
 
-- bug fixes
-- improvements to LLM performance
-- support for new providers
-- fixes for env specific quirks
-- missing standard behavior
-- documentation
+- Bug fixes
+- Improvements to LLM performance
+- Support for new providers
+- Fixes for env specific quirks
+- Missing standard behavior
+- Documentation
 
 Take a look at the git history to see what kind of PRs we end up merging.
 
-> **Note**: If you do not follow the above guidelines we might close your PR
-> that you worked really hard on.
+> [!NOTE]
+> If you do not follow the above guidelines we might close your PR.
 
 To run opencode locally you need.
 
@@ -80,7 +97,7 @@ $ bun run packages/opencode/src/index.ts
 It's very similar to Claude Code in terms of capability. Here are the key differences:
 
 - 100% open source
-- Not coupled to any provider. Although Anthropic is recommended, opencode can be used with OpenAI, Google or even local models. As models evolve the gaps between them will close and pricing will drop so being provider agnostic is important.
+- Not coupled to any provider. Although Anthropic is recommended, opencode can be used with OpenAI, Google or even local models. As models evolve the gaps between them will close and pricing will drop so being provider-agnostic is important.
 - A focus on TUI. opencode is built by neovim users and the creators of [terminal.shop](https://terminal.shop); we are going to push the limits of what's possible in the terminal.
 - A client/server architecture. This for example can allow opencode to run on your computer, while you can drive it remotely from a mobile app. Meaning that the TUI frontend is just one of the possible clients.
 

STATS.md

@@ -1,19 +1,41 @@
 # Download Stats
 
-| Date       | GitHub Downloads | npm Downloads   | Total             |
-| ---------- | ---------------- | --------------- | ----------------- |
-| 2025-06-29 | 18,789 (+0)      | 39,420 (+0)     | 58,209 (+0)       |
-| 2025-06-30 | 20,127 (+1,338)  | 41,059 (+1,639) | 61,186 (+2,977)   |
-| 2025-07-01 | 22,108 (+1,981)  | 43,745 (+2,686) | 65,853 (+4,667)   |
-| 2025-07-02 | 24,814 (+2,706)  | 46,168 (+2,423) | 70,982 (+5,129)   |
-| 2025-07-03 | 27,834 (+3,020)  | 49,955 (+3,787) | 77,789 (+6,807)   |
-| 2025-07-04 | 30,608 (+2,774)  | 54,758 (+4,803) | 85,366 (+7,577)   |
-| 2025-07-05 | 32,524 (+1,916)  | 58,371 (+3,613) | 90,895 (+5,529)   |
-| 2025-07-06 | 33,766 (+1,242)  | 59,694 (+1,323) | 93,460 (+2,565)   |
-| 2025-07-08 | 38,052 (+4,286)  | 64,468 (+4,774) | 102,520 (+9,060)  |
-| 2025-07-10 | 43,796 (+5,744)  | 71,402 (+6,934) | 115,198 (+12,678) |
-| 2025-07-11 | 46,982 (+3,186)  | 77,462 (+6,060) | 124,444 (+9,246)  |
-| 2025-07-12 | 49,302 (+2,320)  | 82,177 (+4,715) | 131,479 (+7,035)  |
-| 2025-07-13 | 50,803 (+1,501)  | 86,394 (+4,217) | 137,197 (+5,718)  |
-| 2025-07-14 | 53,283 (+2,480)  | 87,860 (+1,466) | 141,143 (+3,946)  |
-| 2025-07-15 | 57,590 (+4,307)  | 91,036 (+3,176) | 148,626 (+7,483)  |
+| Date       | GitHub Downloads | npm Downloads    | Total            |
+| ---------- | ---------------- | ---------------- | ---------------- |
+| 2025-06-29 | 18,789 (+0)      | 39,420 (+0)      | 58,209 (+0)      |
+| 2025-06-30 | 20,127 (+1,338)  | 41,059 (+1,639)  | 61,186 (+2,977)  |
+| 2025-07-01 | 22,108 (+1,981)  | 43,745 (+2,686)  | 65,853 (+4,667)  |
+| 2025-07-02 | 24,814 (+2,706)  | 46,168 (+2,423)  | 70,982 (+5,129)  |
+| 2025-07-03 | 27,834 (+3,020)  | 49,955 (+3,787)  | 77,789 (+6,807)  |
+| 2025-07-04 | 30,608 (+2,774)  | 54,758 (+4,803)  | 85,366 (+7,577)  |
+| 2025-07-05 | 32,524 (+1,916)  | 58,371 (+3,613)  | 90,895 (+5,529)  |
+| 2025-07-06 | 33,766 (+1,242)  | 59,694 (+1,323)  | 93,460 (+2,565)  |
+| 2025-07-08 | 38,052 (+4,286)  | 64,468 (+4,774)  | 102,520 (+9,060) |
+| 2025-07-09 | 40,924 (+2,872)  | 67,935 (+3,467)  | 108,859 (+6,339) |
+| 2025-07-10 | 43,796 (+2,872)  | 71,402 (+3,467)  | 115,198 (+6,339) |
+| 2025-07-11 | 46,982 (+3,186)  | 77,462 (+6,060)  | 124,444 (+9,246) |
+| 2025-07-12 | 49,302 (+2,320)  | 82,177 (+4,715)  | 131,479 (+7,035) |
+| 2025-07-13 | 50,803 (+1,501)  | 86,394 (+4,217)  | 137,197 (+5,718) |
+| 2025-07-14 | 53,283 (+2,480)  | 87,860 (+1,466)  | 141,143 (+3,946) |
+| 2025-07-15 | 57,590 (+4,307)  | 91,036 (+3,176)  | 148,626 (+7,483) |
+| 2025-07-16 | 62,313 (+4,723)  | 95,258 (+4,222)  | 157,571 (+8,945) |
+| 2025-07-17 | 66,684 (+4,371)  | 100,048 (+4,790) | 166,732 (+9,161) |
+| 2025-07-18 | 70,379 (+3,695)  | 102,587 (+2,539) | 172,966 (+6,234) |
+| 2025-07-19 | 73,497 (+3,117)  | 105,904 (+3,317) | 179,401 (+6,434) |
+| 2025-07-20 | 76,453 (+2,956)  | 109,044 (+3,140) | 185,497 (+6,096) |
+| 2025-07-21 | 80,197 (+3,744)  | 113,537 (+4,493) | 193,734 (+8,237) |
+| 2025-07-22 | 84,251 (+4,054)  | 118,073 (+4,536) | 202,324 (+8,590) |
+| 2025-07-23 | 88,589 (+4,338)  | 121,436 (+3,363) | 210,025 (+7,701) |
+| 2025-07-24 | 92,469 (+3,880)  | 124,091 (+2,655) | 216,560 (+6,535) |
+| 2025-07-25 | 96,417 (+3,948)  | 126,985 (+2,894) | 223,402 (+6,842) |
+| 2025-07-26 | 100,646 (+4,229) | 131,411 (+4,426) | 232,057 (+8,655) |
+| 2025-07-27 | 102,644 (+1,998) | 134,736 (+3,325) | 237,380 (+5,323) |
+| 2025-07-28 | 105,446 (+2,802) | 136,016 (+1,280) | 241,462 (+4,082) |
+| 2025-07-29 | 108,998 (+3,552) | 137,542 (+1,526) | 246,540 (+5,078) |
+| 2025-07-30 | 113,544 (+4,546) | 140,317 (+2,775) | 253,861 (+7,321) |
+| 2025-07-31 | 118,339 (+4,795) | 143,344 (+3,027) | 261,683 (+7,822) |
+| 2025-08-01 | 123,539 (+5,200) | 146,680 (+3,336) | 270,219 (+8,536) |
+| 2025-08-02 | 127,864 (+4,325) | 149,236 (+2,556) | 277,100 (+6,881) |
+| 2025-08-03 | 131,397 (+3,533) | 150,451 (+1,215) | 281,848 (+4,748) |
+| 2025-08-04 | 136,266 (+4,869) | 153,260 (+2,809) | 289,526 (+7,678) |
+| 2025-08-05 | 141,596 (+5,330) | 155,752 (+2,492) | 297,348 (+7,822) |

github/README.md

@@ -0,0 +1,137 @@
+# opencode GitHub Action
+
+A GitHub Action that integrates [opencode](https://opencode.ai) directly into your GitHub workflow.
+
+Mention `/opencode` in your comment, and opencode will execute tasks within your GitHub Actions runner.
+
+## Features
+
+#### Explain an issues
+
+Leave the following comment on a GitHub issue. `opencode` will read the entire thread, including all comments, and reply with a clear explanation.
+
+```
+/opencode explain this issue
+```
+
+#### Fix an issues
+
+Leave the following comment on a GitHub issue. opencode will create a new branch, implement the changes, and open a PR with the changes.
+
+```
+/opencode fix this
+```
+
+#### Review PRs and make changes
+
+Leave the following comment on a GitHub PR. opencode will implement the requested change and commit it to the same PR.
+
+```
+Delete the attachment from S3 when the note is removed /oc
+```
+
+## Installation
+
+Run the following command in the terminal from your GitHub repo:
+
+```bash
+opencode github install
+```
+
+This will walk you through installing the GitHub app, creating the workflow, and setting up secrets.
+
+### Manual Setup
+
+1. Install the GitHub app https://github.com/apps/opencode-agent. Make sure it is installed on the target repository.
+2. Add the following workflow file to `.github/workflows/opencode.yml` in your repo. Set the appropriate `model` and required API keys in `env`.
+
+   ```yml
+   name: opencode
+
+   on:
+     issue_comment:
+       types: [created]
+
+   jobs:
+     opencode:
+       if: |
+         contains(github.event.comment.body, '/oc') ||
+         contains(github.event.comment.body, '/opencode')
+       runs-on: ubuntu-latest
+       permissions:
+         id-token: write
+       steps:
+         - name: Checkout repository
+           uses: actions/checkout@v4
+           with:
+             fetch-depth: 1
+
+         - name: Run opencode
+           uses: sst/opencode/github@latest
+           env:
+             ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
+           with:
+             model: anthropic/claude-sonnet-4-20250514
+   ```
+
+3. Store the API keys in secrets. In your organization or project **settings**, expand **Secrets and variables** on the left and select **Actions**. Add the required API keys.
+
+## Support
+
+This is an early release. If you encounter issues or have feedback, please create an issue at https://github.com/sst/opencode/issues.
+
+## Development
+
+To test locally:
+
+1. Navigate to a test repo (e.g. `hello-world`):
+
+   ```bash
+   cd hello-world
+   ```
+
+2. Run:
+
+   ```bash
+   MODEL=anthropic/claude-sonnet-4-20250514 \
+     ANTHROPIC_API_KEY=sk-ant-api03-1234567890 \
+     GITHUB_RUN_ID=dummy \
+     bun /path/to/opencode/packages/opencode/src/index.ts github run \
+     --token 'github_pat_1234567890' \
+     --event '{"eventName":"issue_comment",...}'
+   ```
+
+   - `MODEL`: The model used by opencode. Same as the `MODEL` defined in the GitHub workflow.
+   - `ANTHROPIC_API_KEY`: Your model provider API key. Same as the keys defined in the GitHub workflow.
+   - `GITHUB_RUN_ID`: Dummy value to emulate GitHub action environment.
+   - `/path/to/opencode`: Path to your cloned opencode repo. `bun /path/to/opencode/packages/opencode/src/index.ts` runs your local version of `opencode`.
+   - `--token`: A GitHub persontal access token. This token is used to verify you have `admin` or `write` access to the test repo. Generate a token [here](https://github.com/settings/personal-access-tokens).
+   - `--event`: Mock GitHub event payload (see templates below).
+
+### Issue comment event
+
+```
+--event '{"eventName":"issue_comment","repo":{"owner":"sst","repo":"hello-world"},"actor":"fwang","payload":{"issue":{"number":4},"comment":{"id":1,"body":"hey opencode, summarize thread"}}}'
+```
+
+Replace:
+
+- `"owner":"sst"` with repo owner
+- `"repo":"hello-world"` with repo name
+- `"actor":"fwang"` with the GitHub username of commentor
+- `"number":4` with the GitHub issue id
+- `"body":"hey opencode, summarize thread"` with comment body
+
+### Issue comment with image attachment.
+
+```
+--event '{"eventName":"issue_comment","repo":{"owner":"sst","repo":"hello-world"},"actor":"fwang","payload":{"issue":{"number":4},"comment":{"id":1,"body":"hey opencode, what is in my image ![Image](https://github.com/user-attachments/assets/xxxxxxxx)"}}}'
+```
+
+Replace the image URL `https://github.com/user-attachments/assets/xxxxxxxx` with a valid GitHub attachment (you can generate one by commenting with an image in any issue).
+
+### PR comment event
+
+```
+--event '{"eventName":"issue_comment","repo":{"owner":"sst","repo":"hello-world"},"actor":"fwang","payload":{"issue":{"number":4,"pull_request":{}},"comment":{"id":1,"body":"hey opencode, summarize thread"}}}'
+```

github/action.yml

@@ -0,0 +1,29 @@
+name: "opencode GitHub Action"
+description: "Run opencode in GitHub Actions workflows"
+branding:
+  icon: "code"
+  color: "orange"
+
+inputs:
+  model:
+    description: "Model to use"
+    required: true
+
+  share:
+    description: "Share the opencode session (defaults to true for public repos)"
+    required: false
+
+runs:
+  using: "composite"
+  steps:
+    - name: Install opencode
+      shell: bash
+      run: curl -fsSL https://opencode.ai/install | bash
+
+    - name: Run opencode
+      shell: bash
+      id: run_opencode
+      run: opencode github run
+      env:
+        MODEL: ${{ inputs.model }}
+        SHARE: ${{ inputs.share }}

github/script/publish

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+# Get the latest Git tag
+latest_tag=$(git tag --sort=committerdate | grep -E '^github-v[0-9]+\.[0-9]+\.[0-9]+$' | tail -1)
+if [ -z "$latest_tag" ]; then
+    echo "No tags found"
+    exit 1
+fi
+echo "Latest tag: $latest_tag"
+
+# Update latest tag
+git tag -d latest
+git push origin :refs/tags/latest
+git tag -a latest $latest_tag -m "Update latest to $latest_tag"
+git push origin latest

github/script/release

@@ -9,12 +9,9 @@ while [ "$#" -gt 0 ]; do
   esac
 done
 
-git fetch --force --tags
-
 # Get the latest Git tag
-latest_tag=$(git tag --sort=committerdate | grep -E '[0-9]' | tail -1)
-
-# If there is no tag, exit the script
+git fetch --force --tags
+latest_tag=$(git tag --sort=committerdate | grep -E '^github-v[0-9]+\.[0-9]+\.[0-9]+$' | tail -1)
 if [ -z "$latest_tag" ]; then
     echo "No tags found"
     exit 1
@@ -39,5 +36,6 @@ fi
 
 echo "New version: $new_version"
 
+# Tag
 git tag $new_version
-git push --tags
+git push --tags

infra/app.ts

@@ -46,3 +46,15 @@ new sst.cloudflare.x.Astro("Web", {
     VITE_API_URL: api.url,
   },
 })
+
+const OPENCODE_API_KEY = new sst.Secret("OPENCODE_API_KEY")
+const ANTHROPIC_API_KEY = new sst.Secret("ANTHROPIC_API_KEY")
+const OPENAI_API_KEY = new sst.Secret("OPENAI_API_KEY")
+const ZHIPU_API_KEY = new sst.Secret("ZHIPU_API_KEY")
+
+export const gateway = new sst.cloudflare.Worker("GatewayApi", {
+  domain: `api.gateway.${domain}`,
+  handler: "packages/function/src/gateway.ts",
+  url: true,
+  link: [OPENCODE_API_KEY, ANTHROPIC_API_KEY, OPENAI_API_KEY, ZHIPU_API_KEY],
+})

install

@@ -186,4 +186,3 @@ if [ -n "${GITHUB_ACTIONS-}" ] && [ "${GITHUB_ACTIONS}" == "true" ]; then
     echo "$INSTALL_DIR" >> $GITHUB_PATH
     print_message info "Added $INSTALL_DIR to \$GITHUB_PATH"
 fi
-

opencode.json

@@ -1,6 +1,10 @@
 {
   "$schema": "https://opencode.ai/config.json",
   "mcp": {
+    "context7": {
+      "type": "remote",
+      "url": "https://mcp.context7.com/sse"
+    },
     "weather": {
       "type": "local",
       "command": ["opencode", "x", "@h1deya/mcp-server-weather"]

package.json

@@ -5,20 +5,24 @@
   "type": "module",
   "packageManager": "bun@1.2.14",
   "scripts": {
-    "dev": "bun run packages/opencode/src/index.ts",
+    "dev": "bun run --conditions=development packages/opencode/src/index.ts",
     "typecheck": "bun run --filter='*' typecheck",
     "stainless": "./scripts/stainless",
-    "postinstall": "./scripts/hooks"
+    "postinstall": "./script/hooks"
   },
   "workspaces": {
     "packages": [
-      "packages/*"
+      "packages/*",
+      "packages/sdk/js"
     ],
     "catalog": {
-      "typescript": "5.8.2",
       "@types/node": "22.13.9",
+      "@tsconfig/node22": "22.0.2",
+      "ai": "5.0.0-beta.34",
+      "hono": "4.7.10",
+      "typescript": "5.8.2",
       "zod": "3.25.49",
-      "ai": "5.0.0-beta.18"
+      "remeda": "2.26.0"
     }
   },
   "devDependencies": {
@@ -40,6 +44,6 @@
     "sharp"
   ],
   "patchedDependencies": {
-    "ai@4.3.16": "patches/ai@4.3.16.patch"
+    "marked-shiki@1.2.0": "patches/marked-shiki@1.2.0.patch"
   }
 }

packages/function/package.json

@@ -1,17 +1,23 @@
 {
   "name": "@opencode/function",
-  "version": "0.0.1",
+  "version": "0.3.130",
   "$schema": "https://json.schemastore.org/package.json",
   "private": true,
   "type": "module",
   "devDependencies": {
     "@cloudflare/workers-types": "4.20250522.0",
-    "typescript": "catalog:",
-    "@types/node": "catalog:"
+    "@types/node": "catalog:",
+    "openai": "5.11.0",
+    "typescript": "catalog:"
   },
   "dependencies": {
+    "@ai-sdk/anthropic": "2.0.0",
+    "@ai-sdk/openai": "2.0.2",
+    "@ai-sdk/openai-compatible": "1.0.1",
     "@octokit/auth-app": "8.0.1",
     "@octokit/rest": "22.0.0",
+    "ai": "catalog:",
+    "hono": "catalog:",
     "jose": "6.0.11"
   }
 }

packages/function/src/api.ts

@@ -1,3 +1,4 @@
+import { Hono } from "hono"
 import { DurableObject } from "cloudflare:workers"
 import { randomUUID } from "node:crypto"
 import { jwtVerify, createRemoteJWKSet } from "jose"
@@ -111,165 +112,156 @@ export class SyncServer extends DurableObject<Env> {
   }
 }
 
-export default {
-  async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
-    const url = new URL(request.url)
-    const splits = url.pathname.split("/")
-    const method = splits[1]
-
-    if (request.method === "GET" && method === "") {
-      return new Response("Hello, world!", {
-        headers: { "Content-Type": "text/plain" },
-      })
+export default new Hono<{ Bindings: Env }>()
+  .get("/", (c) => c.text("Hello, world!"))
+  .post("/share_create", async (c) => {
+    const body = await c.req.json<{ sessionID: string }>()
+    const sessionID = body.sessionID
+    const short = SyncServer.shortName(sessionID)
+    const id = c.env.SYNC_SERVER.idFromName(short)
+    const stub = c.env.SYNC_SERVER.get(id)
+    const secret = await stub.share(sessionID)
+    return c.json({
+      secret,
+      url: `https://${c.env.WEB_DOMAIN}/s/${short}`,
+    })
+  })
+  .post("/share_delete", async (c) => {
+    const body = await c.req.json<{ sessionID: string; secret: string }>()
+    const sessionID = body.sessionID
+    const secret = body.secret
+    const id = c.env.SYNC_SERVER.idFromName(SyncServer.shortName(sessionID))
+    const stub = c.env.SYNC_SERVER.get(id)
+    await stub.assertSecret(secret)
+    await stub.clear()
+    return c.json({})
+  })
+  .post("/share_delete_admin", async (c) => {
+    const id = c.env.SYNC_SERVER.idFromName("oVF8Rsiv")
+    const stub = c.env.SYNC_SERVER.get(id)
+    await stub.clear()
+    return c.json({})
+  })
+  .post("/share_sync", async (c) => {
+    const body = await c.req.json<{
+      sessionID: string
+      secret: string
+      key: string
+      content: any
+    }>()
+    const name = SyncServer.shortName(body.sessionID)
+    const id = c.env.SYNC_SERVER.idFromName(name)
+    const stub = c.env.SYNC_SERVER.get(id)
+    await stub.assertSecret(body.secret)
+    await stub.publish(body.key, body.content)
+    return c.json({})
+  })
+  .get("/share_poll", async (c) => {
+    const upgradeHeader = c.req.header("Upgrade")
+    if (!upgradeHeader || upgradeHeader !== "websocket") {
+      return c.text("Error: Upgrade header is required", { status: 426 })
     }
+    const id = c.req.query("id")
+    console.log("share_poll", id)
+    if (!id) return c.text("Error: Share ID is required", { status: 400 })
+    const stub = c.env.SYNC_SERVER.get(c.env.SYNC_SERVER.idFromName(id))
+    return stub.fetch(c.req.raw)
+  })
+  .get("/share_data", async (c) => {
+    const id = c.req.query("id")
+    console.log("share_data", id)
+    if (!id) return c.text("Error: Share ID is required", { status: 400 })
+    const stub = c.env.SYNC_SERVER.get(c.env.SYNC_SERVER.idFromName(id))
+    const data = await stub.getData()
 
-    if (request.method === "POST" && method === "share_create") {
-      const body = await request.json<any>()
-      const sessionID = body.sessionID
-      const short = SyncServer.shortName(sessionID)
-      const id = env.SYNC_SERVER.idFromName(short)
-      const stub = env.SYNC_SERVER.get(id)
-      const secret = await stub.share(sessionID)
-      return new Response(
-        JSON.stringify({
-          secret,
-          url: `https://${env.WEB_DOMAIN}/s/${short}`,
-        }),
-        {
-          headers: { "Content-Type": "application/json" },
-        },
-      )
-    }
-
-    if (request.method === "POST" && method === "share_delete") {
-      const body = await request.json<any>()
-      const sessionID = body.sessionID
-      const secret = body.secret
-      const id = env.SYNC_SERVER.idFromName(SyncServer.shortName(sessionID))
-      const stub = env.SYNC_SERVER.get(id)
-      await stub.assertSecret(secret)
-      await stub.clear()
-      return new Response(JSON.stringify({}), {
-        headers: { "Content-Type": "application/json" },
-      })
-    }
-
-    if (request.method === "POST" && method === "share_delete_admin") {
-      const id = env.SYNC_SERVER.idFromName("oVF8Rsiv")
-      const stub = env.SYNC_SERVER.get(id)
-      await stub.clear()
-      return new Response(JSON.stringify({}), {
-        headers: { "Content-Type": "application/json" },
-      })
-    }
-
-    if (request.method === "POST" && method === "share_sync") {
-      const body = await request.json<{
-        sessionID: string
-        secret: string
-        key: string
-        content: any
-      }>()
-      const name = SyncServer.shortName(body.sessionID)
-      const id = env.SYNC_SERVER.idFromName(name)
-      const stub = env.SYNC_SERVER.get(id)
-      await stub.assertSecret(body.secret)
-      await stub.publish(body.key, body.content)
-      return new Response(JSON.stringify({}), {
-        headers: { "Content-Type": "application/json" },
-      })
-    }
-
-    if (request.method === "GET" && method === "share_poll") {
-      const upgradeHeader = request.headers.get("Upgrade")
-      if (!upgradeHeader || upgradeHeader !== "websocket") {
-        return new Response("Error: Upgrade header is required", {
-          status: 426,
-        })
+    let info
+    const messages: Record<string, any> = {}
+    data.forEach((d) => {
+      const [root, type, ...splits] = d.key.split("/")
+      if (root !== "session") return
+      if (type === "info") {
+        info = d.content
+        return
       }
-      const id = url.searchParams.get("id")
-      console.log("share_poll", id)
-      if (!id) return new Response("Error: Share ID is required", { status: 400 })
-      const stub = env.SYNC_SERVER.get(env.SYNC_SERVER.idFromName(id))
-      return stub.fetch(request)
-    }
+      if (type === "message") {
+        messages[d.content.id] = {
+          parts: [],
+          ...d.content,
+        }
+      }
+      if (type === "part") {
+        messages[d.content.messageID].parts.push(d.content)
+      }
+    })
 
-    if (request.method === "GET" && method === "share_data") {
-      const id = url.searchParams.get("id")
-      console.log("share_data", id)
-      if (!id) return new Response("Error: Share ID is required", { status: 400 })
-      const stub = env.SYNC_SERVER.get(env.SYNC_SERVER.idFromName(id))
-      const data = await stub.getData()
+    return c.json({ info, messages })
+  })
+  /**
+   * Used by the GitHub action to get GitHub installation access token given the OIDC token
+   */
+  .post("/exchange_github_app_token", async (c) => {
+    const EXPECTED_AUDIENCE = "opencode-github-action"
+    const GITHUB_ISSUER = "https://token.actions.githubusercontent.com"
+    const JWKS_URL = `${GITHUB_ISSUER}/.well-known/jwks`
 
-      let info
-      const messages: Record<string, any> = {}
-      data.forEach((d) => {
-        const [root, type, ...splits] = d.key.split("/")
-        if (root !== "session") return
-        if (type === "info") {
-          info = d.content
-          return
-        }
-        if (type === "message") {
-          messages[d.content.id] = {
-            parts: [],
-            ...d.content,
-          }
-        }
-        if (type === "part") {
-          messages[d.content.messageID].parts.push(d.content)
-        }
+    // get Authorization header
+    const token = c.req.header("Authorization")?.replace(/^Bearer /, "")
+    if (!token) return c.json({ error: "Authorization header is required" }, { status: 401 })
+
+    // verify token
+    const JWKS = createRemoteJWKSet(new URL(JWKS_URL))
+    let owner, repo
+    try {
+      const { payload } = await jwtVerify(token, JWKS, {
+        issuer: GITHUB_ISSUER,
+        audience: EXPECTED_AUDIENCE,
       })
-
-      return new Response(
-        JSON.stringify({
-          info,
-          messages,
-        }),
-        {
-          headers: { "Content-Type": "application/json" },
-        },
-      )
+      const sub = payload.sub // e.g. 'repo:my-org/my-repo:ref:refs/heads/main'
+      const parts = sub.split(":")[1].split("/")
+      owner = parts[0]
+      repo = parts[1]
+    } catch (err) {
+      console.error("Token verification failed:", err)
+      return c.json({ error: "Invalid or expired token" }, { status: 403 })
     }
 
-    /**
-     * Used by the GitHub action to get GitHub installation access token given the OIDC token
-     */
-    if (request.method === "POST" && method === "exchange_github_app_token") {
-      const EXPECTED_AUDIENCE = "opencode-github-action"
-      const GITHUB_ISSUER = "https://token.actions.githubusercontent.com"
-      const JWKS_URL = `${GITHUB_ISSUER}/.well-known/jwks`
+    // Create app JWT token
+    const auth = createAppAuth({
+      appId: Resource.GITHUB_APP_ID.value,
+      privateKey: Resource.GITHUB_APP_PRIVATE_KEY.value,
+    })
+    const appAuth = await auth({ type: "app" })
 
+    // Lookup installation
+    const octokit = new Octokit({ auth: appAuth.token })
+    const { data: installation } = await octokit.apps.getRepoInstallation({ owner, repo })
+
+    // Get installation token
+    const installationAuth = await auth({ type: "installation", installationId: installation.id })
+
+    return c.json({ token: installationAuth.token })
+  })
+  /**
+   * Used by the GitHub action to get GitHub installation access token given user PAT token (used when testing `opencode github run` locally)
+   */
+  .post("/exchange_github_app_token_with_pat", async (c) => {
+    const body = await c.req.json<{ owner: string; repo: string }>()
+    const owner = body.owner
+    const repo = body.repo
+
+    try {
       // get Authorization header
-      const authHeader = request.headers.get("Authorization")
+      const authHeader = c.req.header("Authorization")
       const token = authHeader?.replace(/^Bearer /, "")
-      if (!token)
-        return new Response(JSON.stringify({ error: "Authorization header is required" }), {
-          status: 401,
-          headers: { "Content-Type": "application/json" },
-        })
+      if (!token) throw new Error("Authorization header is required")
 
-      // verify token
-      const JWKS = createRemoteJWKSet(new URL(JWKS_URL))
-      let owner, repo
-      try {
-        const { payload } = await jwtVerify(token, JWKS, {
-          issuer: GITHUB_ISSUER,
-          audience: EXPECTED_AUDIENCE,
-        })
-        const sub = payload.sub // e.g. 'repo:my-org/my-repo:ref:refs/heads/main'
-        const parts = sub.split(":")[1].split("/")
-        owner = parts[0]
-        repo = parts[1]
-      } catch (err) {
-        console.error("Token verification failed:", err)
-        return new Response(JSON.stringify({ error: "Invalid or expired token" }), {
-          status: 403,
-          headers: { "Content-Type": "application/json" },
-        })
-      }
+      // Verify permissions
+      const userClient = new Octokit({ auth: token })
+      const { data: repoData } = await userClient.repos.get({ owner, repo })
+      if (!repoData.permissions.admin && !repoData.permissions.push && !repoData.permissions.maintain)
+        throw new Error("User does not have write permissions")
 
-      // Create app JWT token
+      // Get installation token
       const auth = createAppAuth({
         appId: Resource.GITHUB_APP_ID.value,
         privateKey: Resource.GITHUB_APP_PRIVATE_KEY.value,
@@ -277,49 +269,49 @@ export default {
       const appAuth = await auth({ type: "app" })
 
       // Lookup installation
-      const octokit = new Octokit({ auth: appAuth.token })
-      const { data: installation } = await octokit.apps.getRepoInstallation({ owner, repo })
+      const appClient = new Octokit({ auth: appAuth.token })
+      const { data: installation } = await appClient.apps.getRepoInstallation({ owner, repo })
 
       // Get installation token
       const installationAuth = await auth({ type: "installation", installationId: installation.id })
 
-      return new Response(JSON.stringify({ token: installationAuth.token }), {
-        headers: { "Content-Type": "application/json" },
-      })
-    }
-
-    /**
-     * Used by the opencode CLI to check if the GitHub app is installed
-     */
-    if (request.method === "GET" && method === "get_github_app_installation") {
-      const owner = url.searchParams.get("owner")
-      const repo = url.searchParams.get("repo")
-
-      const auth = createAppAuth({
-        appId: Resource.GITHUB_APP_ID.value,
-        privateKey: Resource.GITHUB_APP_PRIVATE_KEY.value,
-      })
-      const appAuth = await auth({ type: "app" })
-
-      // Lookup installation
-      const octokit = new Octokit({ auth: appAuth.token })
-      let installation
-      try {
-        const ret = await octokit.apps.getRepoInstallation({ owner, repo })
-        installation = ret.data
-      } catch (err) {
-        if (err instanceof Error && err.message.includes("Not Found")) {
-          // not installed
-        } else {
-          throw err
-        }
+      return c.json({ token: installationAuth.token })
+    } catch (e: any) {
+      let error = e
+      if (e instanceof Error) {
+        error = e.message
       }
 
-      return new Response(JSON.stringify({ installation }), {
-        headers: { "Content-Type": "application/json" },
-      })
+      return c.json({ error }, { status: 401 })
+    }
+  })
+  /**
+   * Used by the opencode CLI to check if the GitHub app is installed
+   */
+  .get("/get_github_app_installation", async (c) => {
+    const owner = c.req.query("owner")
+    const repo = c.req.query("repo")
+
+    const auth = createAppAuth({
+      appId: Resource.GITHUB_APP_ID.value,
+      privateKey: Resource.GITHUB_APP_PRIVATE_KEY.value,
+    })
+    const appAuth = await auth({ type: "app" })
+
+    // Lookup installation
+    const octokit = new Octokit({ auth: appAuth.token })
+    let installation
+    try {
+      const ret = await octokit.apps.getRepoInstallation({ owner, repo })
+      installation = ret.data
+    } catch (err) {
+      if (err instanceof Error && err.message.includes("Not Found")) {
+        // not installed
+      } else {
+        throw err
+      }
     }
 
-    return new Response("Not Found", { status: 404 })
-  },
-}
+    return c.json({ installation })
+  })
+  .all("*", (c) => c.text("Not Found"))

packages/function/src/gateway.ts

@@ -0,0 +1,499 @@
+import { Hono, Context, Next } from "hono"
+import { Resource } from "sst"
+import { generateText, streamText } from "ai"
+import { createAnthropic } from "@ai-sdk/anthropic"
+import { createOpenAI } from "@ai-sdk/openai"
+import { createOpenAICompatible } from "@ai-sdk/openai-compatible"
+import { type LanguageModelV2Prompt } from "@ai-sdk/provider"
+import { type ChatCompletionCreateParamsBase } from "openai/resources/chat/completions"
+
+type Env = {}
+
+const auth = async (c: Context, next: Next) => {
+  const authHeader = c.req.header("authorization")
+
+  if (!authHeader || !authHeader.startsWith("Bearer ")) {
+    return c.json(
+      {
+        error: {
+          message: "Missing API key.",
+          type: "invalid_request_error",
+          param: null,
+          code: "unauthorized",
+        },
+      },
+      401,
+    )
+  }
+
+  const apiKey = authHeader.split(" ")[1]
+
+  // Replace with your validation logic
+  if (apiKey !== Resource.OPENCODE_API_KEY.value) {
+    return c.json(
+      {
+        error: {
+          message: "Invalid API key.",
+          type: "invalid_request_error",
+          param: null,
+          code: "unauthorized",
+        },
+      },
+      401,
+    )
+  }
+
+  await next()
+}
+export default new Hono<{ Bindings: Env }>()
+  .get("/", (c) => c.text("Hello, world!"))
+  .post("/v1/chat/completions", auth, async (c) => {
+    try {
+      const body = await c.req.json<ChatCompletionCreateParamsBase>()
+
+      console.log(body)
+
+      const model = (() => {
+        const [provider, ...parts] = body.model.split("/")
+        const model = parts.join("/")
+        if (provider === "anthropic" && model === "claude-sonnet-4") {
+          return createAnthropic({
+            apiKey: Resource.ANTHROPIC_API_KEY.value,
+          })("claude-sonnet-4-20250514")
+        }
+        if (provider === "openai" && model === "gpt-4.1") {
+          return createOpenAI({
+            apiKey: Resource.OPENAI_API_KEY.value,
+          })("gpt-4.1")
+        }
+        if (provider === "zhipuai" && model === "glm-4.5-flash") {
+          return createOpenAICompatible({
+            name: "Zhipu AI",
+            baseURL: "https://api.z.ai/api/paas/v4",
+            apiKey: Resource.ZHIPU_API_KEY.value,
+          })("glm-4.5-flash")
+        }
+        throw new Error(`Unsupported provider: ${provider}`)
+      })()
+
+      const requestBody = transformOpenAIRequestToAiSDK()
+
+      return body.stream ? await handleStream() : await handleGenerate()
+
+      async function handleStream() {
+        const result = await streamText({
+          model,
+          ...requestBody,
+        })
+
+        const encoder = new TextEncoder()
+        const stream = new ReadableStream({
+          async start(controller) {
+            const id = `chatcmpl-${Date.now()}`
+            const created = Math.floor(Date.now() / 1000)
+
+            try {
+              for await (const chunk of result.fullStream) {
+                // TODO
+                //console.log("!!! CHUCK !!!", chunk);
+                switch (chunk.type) {
+                  case "text-delta": {
+                    const data = {
+                      id,
+                      object: "chat.completion.chunk",
+                      created,
+                      model: body.model,
+                      choices: [
+                        {
+                          index: 0,
+                          delta: {
+                            content: chunk.text,
+                          },
+                          finish_reason: null,
+                        },
+                      ],
+                    }
+                    controller.enqueue(encoder.encode(`data: ${JSON.stringify(data)}\n\n`))
+                    break
+                  }
+
+                  case "reasoning-delta": {
+                    const data = {
+                      id,
+                      object: "chat.completion.chunk",
+                      created,
+                      model: body.model,
+                      choices: [
+                        {
+                          index: 0,
+                          delta: {
+                            reasoning_content: chunk.text,
+                          },
+                          finish_reason: null,
+                        },
+                      ],
+                    }
+                    controller.enqueue(encoder.encode(`data: ${JSON.stringify(data)}\n\n`))
+                    break
+                  }
+
+                  case "tool-call": {
+                    const data = {
+                      id,
+                      object: "chat.completion.chunk",
+                      created,
+                      model: body.model,
+                      choices: [
+                        {
+                          index: 0,
+                          delta: {
+                            tool_calls: [
+                              {
+                                id: chunk.toolCallId,
+                                type: "function",
+                                function: {
+                                  name: chunk.toolName,
+                                  arguments: JSON.stringify(chunk.input),
+                                },
+                              },
+                            ],
+                          },
+                          finish_reason: null,
+                        },
+                      ],
+                    }
+                    controller.enqueue(encoder.encode(`data: ${JSON.stringify(data)}\n\n`))
+                    break
+                  }
+
+                  case "error": {
+                    const data = {
+                      id,
+                      object: "chat.completion.chunk",
+                      created,
+                      model: body.model,
+                      error: {
+                        message: chunk.error,
+                        type: "server_error",
+                      },
+                    }
+                    controller.enqueue(encoder.encode(`data: ${JSON.stringify(data)}\n\n`))
+                    controller.enqueue(encoder.encode("data: [DONE]\n\n"))
+                    controller.close()
+                    break
+                  }
+
+                  case "finish": {
+                    const finishReason =
+                      {
+                        stop: "stop",
+                        length: "length",
+                        "content-filter": "content_filter",
+                        "tool-calls": "tool_calls",
+                        error: "stop",
+                        other: "stop",
+                        unknown: "stop",
+                      }[chunk.finishReason] || "stop"
+
+                    const data = {
+                      id,
+                      object: "chat.completion.chunk",
+                      created,
+                      model: body.model,
+                      choices: [
+                        {
+                          index: 0,
+                          delta: {},
+                          finish_reason: finishReason,
+                        },
+                      ],
+                      usage: {
+                        prompt_tokens: chunk.totalUsage.inputTokens,
+                        completion_tokens: chunk.totalUsage.outputTokens,
+                        total_tokens: chunk.totalUsage.totalTokens,
+                        completion_tokens_details: {
+                          reasoning_tokens: chunk.totalUsage.reasoningTokens,
+                        },
+                        prompt_tokens_details: {
+                          cached_tokens: chunk.totalUsage.cachedInputTokens,
+                        },
+                      },
+                    }
+                    controller.enqueue(encoder.encode(`data: ${JSON.stringify(data)}\n\n`))
+                    controller.enqueue(encoder.encode("data: [DONE]\n\n"))
+                    controller.close()
+                    break
+                  }
+
+                  //case "stream-start":
+                  //case "response-metadata":
+                  case "start-step":
+                  case "finish-step":
+                  case "text-start":
+                  case "text-end":
+                  case "reasoning-start":
+                  case "reasoning-end":
+                  case "tool-input-start":
+                  case "tool-input-delta":
+                  case "tool-input-end":
+                  case "raw":
+                  default:
+                    // Log unknown chunk types for debugging
+                    console.warn(`Unknown chunk type: ${(chunk as any).type}`)
+                    break
+                }
+              }
+            } catch (error) {
+              controller.error(error)
+            }
+          },
+        })
+
+        return new Response(stream, {
+          headers: {
+            "Content-Type": "text/plain; charset=utf-8",
+            "Cache-Control": "no-cache",
+            Connection: "keep-alive",
+          },
+        })
+      }
+
+      async function handleGenerate() {
+        const response = await generateText({
+          model,
+          ...requestBody,
+        })
+        return c.json({
+          id: `chatcmpl-${Date.now()}`,
+          object: "chat.completion" as const,
+          created: Math.floor(Date.now() / 1000),
+          model: body.model,
+          choices: [
+            {
+              index: 0,
+              message: {
+                role: "assistant" as const,
+                content: response.content?.find((c) => c.type === "text")?.text ?? "",
+                reasoning_content: response.content?.find((c) => c.type === "reasoning")?.text,
+                tool_calls: response.content
+                  ?.filter((c) => c.type === "tool-call")
+                  .map((toolCall) => ({
+                    id: toolCall.toolCallId,
+                    type: "function" as const,
+                    function: {
+                      name: toolCall.toolName,
+                      arguments: toolCall.input,
+                    },
+                  })),
+              },
+              finish_reason:
+                (
+                  {
+                    stop: "stop",
+                    length: "length",
+                    "content-filter": "content_filter",
+                    "tool-calls": "tool_calls",
+                    error: "stop",
+                    other: "stop",
+                    unknown: "stop",
+                  } as const
+                )[response.finishReason] || "stop",
+            },
+          ],
+          usage: {
+            prompt_tokens: response.usage?.inputTokens,
+            completion_tokens: response.usage?.outputTokens,
+            total_tokens: response.usage?.totalTokens,
+            completion_tokens_details: {
+              reasoning_tokens: response.usage?.reasoningTokens,
+            },
+            prompt_tokens_details: {
+              cached_tokens: response.usage?.cachedInputTokens,
+            },
+          },
+        })
+      }
+
+      function transformOpenAIRequestToAiSDK() {
+        const prompt = transformMessages()
+
+        return {
+          prompt,
+          maxOutputTokens: body.max_tokens ?? body.max_completion_tokens ?? undefined,
+          temperature: body.temperature ?? undefined,
+          topP: body.top_p ?? undefined,
+          frequencyPenalty: body.frequency_penalty ?? undefined,
+          presencePenalty: body.presence_penalty ?? undefined,
+          providerOptions: body.reasoning_effort
+            ? {
+                anthropic: {
+                  reasoningEffort: body.reasoning_effort,
+                },
+              }
+            : undefined,
+          stopSequences: (typeof body.stop === "string" ? [body.stop] : body.stop) ?? undefined,
+          responseFormat: (() => {
+            if (!body.response_format) return { type: "text" }
+            if (body.response_format.type === "json_schema")
+              return {
+                type: "json",
+                schema: body.response_format.json_schema.schema,
+                name: body.response_format.json_schema.name,
+                description: body.response_format.json_schema.description,
+              }
+            if (body.response_format.type === "json_object") return { type: "json" }
+            throw new Error("Unsupported response format")
+          })(),
+          seed: body.seed ?? undefined,
+        }
+
+        function transformTools() {
+          const { tools, tool_choice } = body
+
+          if (!tools || tools.length === 0) {
+            return { tools: undefined, toolChoice: undefined }
+          }
+
+          const aiSdkTools = tools.reduce(
+            (acc, tool) => {
+              acc[tool.function.name] = {
+                type: "function" as const,
+                name: tool.function.name,
+                description: tool.function.description,
+                inputSchema: tool.function.parameters,
+              }
+              return acc
+            },
+            {} as Record<string, any>,
+          )
+
+          let aiSdkToolChoice
+          if (tool_choice == null) {
+            aiSdkToolChoice = undefined
+          } else if (tool_choice === "auto") {
+            aiSdkToolChoice = "auto"
+          } else if (tool_choice === "none") {
+            aiSdkToolChoice = "none"
+          } else if (tool_choice === "required") {
+            aiSdkToolChoice = "required"
+          } else if (tool_choice.type === "function") {
+            aiSdkToolChoice = {
+              type: "tool",
+              toolName: tool_choice.function.name,
+            }
+          }
+
+          return { tools: aiSdkTools, toolChoice: aiSdkToolChoice }
+        }
+
+        function transformMessages() {
+          const { messages } = body
+          const prompt: LanguageModelV2Prompt = []
+
+          for (const message of messages) {
+            switch (message.role) {
+              case "system": {
+                prompt.push({
+                  role: "system",
+                  content: message.content as string,
+                })
+                break
+              }
+
+              case "user": {
+                if (typeof message.content === "string") {
+                  prompt.push({
+                    role: "user",
+                    content: [{ type: "text", text: message.content }],
+                  })
+                } else {
+                  const content = message.content.map((part) => {
+                    switch (part.type) {
+                      case "text":
+                        return { type: "text" as const, text: part.text }
+                      case "image_url":
+                        return {
+                          type: "file" as const,
+                          mediaType: "image/jpeg" as const,
+                          data: part.image_url.url,
+                        }
+                      default:
+                        throw new Error(`Unsupported content part type: ${(part as any).type}`)
+                    }
+                  })
+                  prompt.push({
+                    role: "user",
+                    content,
+                  })
+                }
+                break
+              }
+
+              case "assistant": {
+                const content: Array<
+                  | { type: "text"; text: string }
+                  | {
+                      type: "tool-call"
+                      toolCallId: string
+                      toolName: string
+                      input: any
+                    }
+                > = []
+
+                if (message.content) {
+                  content.push({
+                    type: "text",
+                    text: message.content as string,
+                  })
+                }
+
+                if (message.tool_calls) {
+                  for (const toolCall of message.tool_calls) {
+                    content.push({
+                      type: "tool-call",
+                      toolCallId: toolCall.id,
+                      toolName: toolCall.function.name,
+                      input: JSON.parse(toolCall.function.arguments),
+                    })
+                  }
+                }
+
+                prompt.push({
+                  role: "assistant",
+                  content,
+                })
+                break
+              }
+
+              case "tool": {
+                prompt.push({
+                  role: "tool",
+                  content: [
+                    {
+                      type: "tool-result",
+                      toolName: "placeholder",
+                      toolCallId: message.tool_call_id,
+                      output: {
+                        type: "text",
+                        value: message.content as string,
+                      },
+                    },
+                  ],
+                })
+                break
+              }
+
+              default: {
+                throw new Error(`Unsupported message role: ${message.role}`)
+              }
+            }
+          }
+
+          return prompt
+        }
+      }
+    } catch (error: any) {
+      return c.json({ error: { message: error.message } }, 500)
+    }
+  })
+  .all("*", (c) => c.text("Not Found"))

packages/function/sst-env.d.ts

@@ -6,6 +6,10 @@
 import "sst"
 declare module "sst" {
   export interface Resource {
+    "ANTHROPIC_API_KEY": {
+      "type": "sst.sst.Secret"
+      "value": string
+    }
     "GITHUB_APP_ID": {
       "type": "sst.sst.Secret"
       "value": string
@@ -14,10 +18,22 @@ declare module "sst" {
       "type": "sst.sst.Secret"
       "value": string
     }
+    "OPENAI_API_KEY": {
+      "type": "sst.sst.Secret"
+      "value": string
+    }
+    "OPENCODE_API_KEY": {
+      "type": "sst.sst.Secret"
+      "value": string
+    }
     "Web": {
       "type": "sst.cloudflare.Astro"
       "url": string
     }
+    "ZHIPU_API_KEY": {
+      "type": "sst.sst.Secret"
+      "value": string
+    }
   }
 }
 // cloudflare 
@@ -26,6 +42,7 @@ declare module "sst" {
   export interface Resource {
     "Api": cloudflare.Service
     "Bucket": cloudflare.R2Bucket
+    "GatewayApi": cloudflare.Service
   }
 }
 

packages/opencode/AGENTS.md

@@ -17,19 +17,6 @@
 - **Error handling**: Use Result patterns, avoid throwing exceptions in tools
 - **File structure**: Namespace-based organization (e.g., `Tool.define()`, `Session.create()`)
 
-## IMPORTANT
-
-- Try to keep things in one function unless composable or reusable
-- DO NOT do unnecessary destructuring of variables
-- DO NOT use `else` statements unless necessary
-- DO NOT use `try`/`catch` if it can be avoided
-- AVOID `try`/`catch` where possible
-- AVOID `else` statements
-- AVOID using `any` type
-- AVOID `let` statements
-- PREFER single word variable names where possible
-- Use as many bun apis as possible like Bun.file()
-
 ## Architecture
 
 - **Tools**: Implement `Tool.Info` interface with `execute()` method

packages/opencode/package.json

@@ -1,12 +1,12 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
-  "version": "0.0.5",
+  "version": "0.3.130",
   "name": "opencode",
   "type": "module",
   "private": true,
   "scripts": {
     "typecheck": "tsc --noEmit",
-    "dev": "bun run ./src/index.ts"
+    "dev": "bun run --conditions=development ./src/index.ts"
   },
   "bin": {
     "opencode": "./bin/opencode"
@@ -17,6 +17,7 @@
   "devDependencies": {
     "@ai-sdk/amazon-bedrock": "2.2.10",
     "@ai-sdk/anthropic": "1.2.12",
+    "@octokit/webhooks-types": "7.6.1",
     "@standard-schema/spec": "1.0.0",
     "@tsconfig/bun": "1.0.7",
     "@types/bun": "latest",
@@ -27,21 +28,36 @@
     "zod-to-json-schema": "3.24.5"
   },
   "dependencies": {
-    "@clack/prompts": "0.11.0",
+    "@actions/core": "1.11.1",
+    "@actions/github": "6.0.1",
+    "@clack/prompts": "1.0.0-alpha.1",
+    "@hono/zod-validator": "0.4.2",
     "@modelcontextprotocol/sdk": "1.15.1",
+    "@octokit/graphql": "9.0.1",
+    "@octokit/rest": "22.0.0",
     "@openauthjs/openauth": "0.4.3",
+    "@opencode-ai/plugin": "workspace:*",
+    "@opencode-ai/sdk": "workspace:*",
+    "@standard-schema/spec": "1.0.0",
+    "@zip.js/zip.js": "2.7.62",
     "ai": "catalog:",
     "decimal.js": "10.5.0",
     "diff": "8.0.2",
-    "hono": "4.7.10",
+    "gray-matter": "4.0.3",
+    "hono": "catalog:",
     "hono-openapi": "0.4.8",
     "isomorphic-git": "1.32.1",
+    "jsonc-parser": "3.3.1",
+    "minimatch": "10.0.3",
     "open": "10.1.2",
-    "remeda": "2.22.3",
+    "remeda": "catalog:",
+    "tree-sitter": "0.22.4",
+    "tree-sitter-bash": "0.23.3",
     "turndown": "7.2.0",
     "vscode-jsonrpc": "8.2.1",
     "xdg-basedir": "5.1.0",
     "yargs": "18.0.0",
-    "zod": "catalog:"
+    "zod": "catalog:",
+    "zod-openapi": "4.1.0"
   }
 }

packages/opencode/script/publish.ts

@@ -1,35 +1,30 @@
 #!/usr/bin/env bun
-
+const dir = new URL("..", import.meta.url).pathname
+process.chdir(dir)
 import { $ } from "bun"
 
 import pkg from "../package.json"
 
-const dry = process.argv.includes("--dry")
-const snapshot = process.argv.includes("--snapshot")
-
-const version = snapshot
-  ? `0.0.0-${new Date().toISOString().slice(0, 16).replace(/[-:T]/g, "")}`
-  : await $`git describe --tags --abbrev=0`
-      .text()
-      .then((x) => x.substring(1).trim())
-      .catch(() => {
-        console.error("tag not found")
-        process.exit(1)
-      })
+const dry = process.env["OPENCODE_DRY"] === "true"
+const version = process.env["OPENCODE_VERSION"]!
+const snapshot = process.env["OPENCODE_SNAPSHOT"] === "true"
 
 console.log(`publishing ${version}`)
 
 const GOARCH: Record<string, string> = {
   arm64: "arm64",
   x64: "amd64",
+  "x64-baseline": "amd64",
 }
 
 const targets = [
+  ["windows", "x64"],
   ["linux", "arm64"],
   ["linux", "x64"],
+  ["linux", "x64-baseline"],
   ["darwin", "x64"],
+  ["darwin", "x64-baseline"],
   ["darwin", "arm64"],
-  ["windows", "x64"],
 ]
 
 await $`rm -rf dist`
@@ -43,7 +38,7 @@ for (const [os, arch] of targets) {
   await $`CGO_ENABLED=0 GOOS=${os} GOARCH=${GOARCH[arch]} go build -ldflags="-s -w -X main.Version=${version}" -o ../opencode/dist/${name}/bin/tui ../tui/cmd/opencode/main.go`.cwd(
     "../tui",
   )
-  await $`bun build --define OPENCODE_VERSION="'${version}'" --compile --minify --target=bun-${os}-${arch} --outfile=dist/${name}/bin/opencode ./src/index.ts ./dist/${name}/bin/tui`
+  await $`bun build --define OPENCODE_TUI_PATH="'../../../dist/${name}/bin/tui'" --define OPENCODE_VERSION="'${version}'" --compile --target=bun-${os}-${arch} --outfile=dist/${name}/bin/opencode ./src/index.ts`
   await $`rm -rf ./dist/${name}/bin/tui`
   await Bun.file(`dist/${name}/package.json`).write(
     JSON.stringify(
@@ -57,7 +52,7 @@ for (const [os, arch] of targets) {
       2,
     ),
   )
-  if (!dry) await $`cd dist/${name} && bun publish --access public --tag ${npmTag}`
+  if (!dry) await $`cd dist/${name} && chmod 777 -R . && bun publish --access public --tag ${npmTag}`
   optionalDependencies[name] = version
 }
 
@@ -90,27 +85,35 @@ if (!snapshot) {
   }
 
   const previous = await fetch("https://api.github.com/repos/sst/opencode/releases/latest")
-    .then((res) => res.json())
+    .then((res) => {
+      if (!res.ok) throw new Error(res.statusText)
+      return res.json()
+    })
     .then((data) => data.tag_name)
 
+  console.log("finding commits between", previous, "and", "HEAD")
   const commits = await fetch(`https://api.github.com/repos/sst/opencode/compare/${previous}...HEAD`)
     .then((res) => res.json())
     .then((data) => data.commits || [])
 
-  const notes = commits
-    .map((commit: any) => `- ${commit.commit.message.split("\n")[0]}`)
-    .filter((x: string) => {
-      const lower = x.toLowerCase()
-      return (
-        !lower.includes("ignore:") &&
-        !lower.includes("chore:") &&
-        !lower.includes("ci:") &&
-        !lower.includes("wip:") &&
-        !lower.includes("docs:") &&
-        !lower.includes("doc:")
-      )
-    })
-    .join("\n")
+  const raw = commits.map((commit: any) => `- ${commit.commit.message.split("\n").join(" ")}`)
+  console.log(raw)
+
+  const notes =
+    raw
+      .filter((x: string) => {
+        const lower = x.toLowerCase()
+        return (
+          !lower.includes("release:") &&
+          !lower.includes("ignore:") &&
+          !lower.includes("chore:") &&
+          !lower.includes("ci:") &&
+          !lower.includes("wip:") &&
+          !lower.includes("docs:") &&
+          !lower.includes("doc:")
+        )
+      })
+      .join("\n") || "No notable changes"
 
   if (!dry) await $`gh release create v${version} --title "v${version}" --notes ${notes} ./dist/*.zip`
 
@@ -152,6 +155,7 @@ if (!snapshot) {
   for (const pkg of ["opencode", "opencode-bin"]) {
     await $`rm -rf ./dist/aur-${pkg}`
     await $`git clone ssh://aur@aur.archlinux.org/${pkg}.git ./dist/aur-${pkg}`
+    await $`cd ./dist/aur-${pkg} && git checkout master`
     await Bun.file(`./dist/aur-${pkg}/PKGBUILD`).write(pkgbuild.replace("${pkg}", pkg))
     await $`cd ./dist/aur-${pkg} && makepkg --printsrcinfo > .SRCINFO`
     await $`cd ./dist/aur-${pkg} && git add PKGBUILD .SRCINFO`

packages/opencode/src/agent/agent.ts

@@ -0,0 +1,105 @@
+import { App } from "../app/app"
+import { Config } from "../config/config"
+import z from "zod"
+import { Provider } from "../provider/provider"
+import { generateObject, type ModelMessage } from "ai"
+import PROMPT_GENERATE from "./generate.txt"
+import { SystemPrompt } from "../session/system"
+
+export namespace Agent {
+  export const Info = z
+    .object({
+      name: z.string(),
+      model: z
+        .object({
+          modelID: z.string(),
+          providerID: z.string(),
+        })
+        .optional(),
+      description: z.string(),
+      prompt: z.string().optional(),
+      tools: z.record(z.boolean()),
+    })
+    .openapi({
+      ref: "Agent",
+    })
+  export type Info = z.infer<typeof Info>
+  const state = App.state("agent", async () => {
+    const cfg = await Config.get()
+    const result: Record<string, Info> = {
+      general: {
+        name: "general",
+        description:
+          "General-purpose agent for researching complex questions, searching for code, and executing multi-step tasks. When you are searching for a keyword or file and are not confident that you will find the right match in the first few tries use this agent to perform the search for you.",
+        tools: {
+          todoread: false,
+          todowrite: false,
+        },
+      },
+    }
+    for (const [key, value] of Object.entries(cfg.agent ?? {})) {
+      if (value.disable) {
+        delete result[key]
+        continue
+      }
+      let item = result[key]
+      if (!item)
+        item = result[key] = {
+          name: key,
+          description: "",
+          tools: {
+            todowrite: false,
+            todoread: false,
+          },
+        }
+      const model = value.model ?? cfg.model
+      if (model) item.model = Provider.parseModel(model)
+      if (value.prompt) item.prompt = value.prompt
+      if (value.tools)
+        item.tools = {
+          ...item.tools,
+          ...value.tools,
+        }
+      if (value.description) item.description = value.description
+    }
+    return result
+  })
+
+  export async function get(agent: string) {
+    return state().then((x) => x[agent])
+  }
+
+  export async function list() {
+    return state().then((x) => Object.values(x))
+  }
+
+  export async function generate(input: { description: string }) {
+    const defaultModel = await Provider.defaultModel()
+    const model = await Provider.getModel(defaultModel.providerID, defaultModel.modelID)
+    const system = SystemPrompt.header(defaultModel.providerID)
+    system.push(PROMPT_GENERATE)
+    const existing = await list()
+    const result = await generateObject({
+      temperature: 0.3,
+      prompt: [
+        ...system.map(
+          (item): ModelMessage => ({
+            role: "system",
+            content: item,
+          }),
+        ),
+        {
+          role: "user",
+          content: `Create an agent configuration based on this request: \"${input.description}\".\n\nIMPORTANT: The following identifiers already exist and must NOT be used: ${existing.map((i) => i.name).join(", ")}\n  Return ONLY the JSON object, no other text, do not wrap in backticks`,
+        },
+      ],
+      model: model.language,
+      schema: z.object({
+        identifier: z.string(),
+        whenToUse: z.string(),
+        systemPrompt: z.string(),
+      }),
+    })
+    return result.object
+  }
+}

packages/opencode/src/agent/generate.txt

@@ -0,0 +1,75 @@
+You are an elite AI agent architect specializing in crafting high-performance agent configurations. Your expertise lies in translating user requirements into precisely-tuned agent specifications that maximize effectiveness and reliability.
+
+**Important Context**: You may have access to project-specific instructions from CLAUDE.md files and other context that may include coding standards, project structure, and custom requirements. Consider this context when creating agents to ensure they align with the project's established patterns and practices.
+
+When a user describes what they want an agent to do, you will:
+
+1. **Extract Core Intent**: Identify the fundamental purpose, key responsibilities, and success criteria for the agent. Look for both explicit requirements and implicit needs. Consider any project-specific context from CLAUDE.md files. For agents that are meant to review code, you should assume that the user is asking to review recently written code and not the whole codebase, unless the user has explicitly instructed you otherwise.
+
+2. **Design Expert Persona**: Create a compelling expert identity that embodies deep domain knowledge relevant to the task. The persona should inspire confidence and guide the agent's decision-making approach.
+
+3. **Architect Comprehensive Instructions**: Develop a system prompt that:
+
+   - Establishes clear behavioral boundaries and operational parameters
+   - Provides specific methodologies and best practices for task execution
+   - Anticipates edge cases and provides guidance for handling them
+   - Incorporates any specific requirements or preferences mentioned by the user
+   - Defines output format expectations when relevant
+   - Aligns with project-specific coding standards and patterns from CLAUDE.md
+
+4. **Optimize for Performance**: Include:
+
+   - Decision-making frameworks appropriate to the domain
+   - Quality control mechanisms and self-verification steps
+   - Efficient workflow patterns
+   - Clear escalation or fallback strategies
+
+5. **Create Identifier**: Design a concise, descriptive identifier that:
+   - Uses lowercase letters, numbers, and hyphens only
+   - Is typically 2-4 words joined by hyphens
+   - Clearly indicates the agent's primary function
+   - Is memorable and easy to type
+   - Avoids generic terms like "helper" or "assistant"
+
+6 **Example agent descriptions**:
+
+- in the 'whenToUse' field of the JSON object, you should include examples of when this agent should be used.
+- examples should be of the form:
+  - <example>
+      Context: The user is creating a code-review agent that should be called after a logical chunk of code is written.
+      user: "Please write a function that checks if a number is prime"
+      assistant: "Here is the relevant function: "
+      <function call omitted for brevity only for this example>
+      <commentary>
+      Since the user is greeting, use the Task tool to launch the greeting-responder agent to respond with a friendly joke. 
+      </commentary>
+      assistant: "Now let me use the code-reviewer agent to review the code"
+    </example>
+  - <example>
+      Context: User is creating an agent to respond to the word "hello" with a friendly jok.
+      user: "Hello"
+      assistant: "I'm going to use the Task tool to launch the greeting-responder agent to respond with a friendly joke"
+      <commentary>
+      Since the user is greeting, use the greeting-responder agent to respond with a friendly joke. 
+      </commentary>
+    </example>
+- If the user mentioned or implied that the agent should be used proactively, you should include examples of this.
+- NOTE: Ensure that in the examples, you are making the assistant use the Agent tool and not simply respond directly to the task.
+
+Your output must be a valid JSON object with exactly these fields:
+{
+"identifier": "A unique, descriptive identifier using lowercase letters, numbers, and hyphens (e.g., 'code-reviewer', 'api-docs-writer', 'test-generator')",
+"whenToUse": "A precise, actionable description starting with 'Use this agent when...' that clearly defines the triggering conditions and use cases. Ensure you include examples as described above.",
+"systemPrompt": "The complete system prompt that will govern the agent's behavior, written in second person ('You are...', 'You will...') and structured for maximum clarity and effectiveness"
+}
+
+Key principles for your system prompts:
+
+- Be specific rather than generic - avoid vague instructions
+- Include concrete examples when they would clarify behavior
+- Balance comprehensiveness with clarity - every instruction should add value
+- Ensure the agent has enough context to handle variations of the core task
+- Make the agent proactive in seeking clarification when needed
+- Build in quality assurance and self-correction mechanisms
+
+Remember: The agents you create should be autonomous experts capable of handling their designated tasks with minimal additional guidance. Your system prompts are their complete operational manual.

packages/opencode/src/auth/copilot.ts

@@ -4,11 +4,12 @@ import path from "path"
 
 export const AuthCopilot = lazy(async () => {
   const file = Bun.file(path.join(Global.Path.state, "plugin", "copilot.ts"))
+  const exists = await file.exists()
   const response = fetch("https://raw.githubusercontent.com/sst/opencode-github-copilot/refs/heads/main/auth.ts")
     .then((x) => Bun.write(file, x))
     .catch(() => {})
 
-  if (!file.exists()) {
+  if (!exists) {
     const worked = await response
     if (!worked) return
   }

packages/opencode/src/auth/index.ts

@@ -16,7 +16,13 @@ export namespace Auth {
     key: z.string(),
   })
 
-  export const Info = z.discriminatedUnion("type", [Oauth, Api])
+  export const WellKnown = z.object({
+    type: z.literal("wellknown"),
+    key: z.string(),
+    token: z.string(),
+  })
+
+  export const Info = z.discriminatedUnion("type", [Oauth, Api, WellKnown])
   export type Info = z.infer<typeof Info>
 
   const filepath = path.join(Global.Path.data, "auth.json")

packages/opencode/src/bun/index.ts

@@ -66,20 +66,19 @@ export namespace BunProc {
       return result
     })
     if (parsed.dependencies[pkg] === version) return mod
-    await BunProc.run(
-      [
-        "add",
-        "--force",
-        "--exact",
-        "--cwd",
-        Global.Path.cache,
-        "--registry=https://registry.npmjs.org",
-        pkg + "@" + version,
-      ],
-      {
-        cwd: Global.Path.cache,
-      },
-    ).catch((e) => {
+
+    // Build command arguments
+    const args = ["add", "--force", "--exact", "--cwd", Global.Path.cache, pkg + "@" + version]
+
+    // Let Bun handle registry resolution:
+    // - If .npmrc files exist, Bun will use them automatically
+    // - If no .npmrc files exist, Bun will default to https://registry.npmjs.org
+    // - No need to pass --registry flag
+    log.info("installing package using Bun's default registry resolution", { pkg, version })
+
+    await BunProc.run(args, {
+      cwd: Global.Path.cache,
+    }).catch((e) => {
       throw new InstallFailedError(
         { pkg, version },
         {

packages/opencode/src/cli/bootstrap.ts

@@ -2,14 +2,18 @@ import { App } from "../app/app"
 import { ConfigHooks } from "../config/hooks"
 import { Format } from "../format"
 import { LSP } from "../lsp"
+import { Plugin } from "../plugin"
 import { Share } from "../share/share"
+import { Snapshot } from "../snapshot"
 
 export async function bootstrap<T>(input: App.Input, cb: (app: App.Info) => Promise<T>) {
   return App.provide(input, async (app) => {
     Share.init()
     Format.init()
+    Plugin.init()
     ConfigHooks.init()
     LSP.init()
+    Snapshot.init()
 
     return cb(app)
   })

packages/opencode/src/cli/cmd/agent.ts

@@ -0,0 +1,110 @@
+import { cmd } from "./cmd"
+import * as prompts from "@clack/prompts"
+import { UI } from "../ui"
+import { Global } from "../../global"
+import { Agent } from "../../agent/agent"
+import path from "path"
+import matter from "gray-matter"
+import { App } from "../../app/app"
+
+const AgentCreateCommand = cmd({
+  command: "create",
+  describe: "create a new agent",
+  async handler() {
+    await App.provide({ cwd: process.cwd() }, async (app) => {
+      UI.empty()
+      prompts.intro("Create agent")
+
+      let scope: "global" | "project" = "global"
+      if (app.git) {
+        const scopeResult = await prompts.select({
+          message: "Location",
+          options: [
+            {
+              label: "Current project",
+              value: "project" as const,
+              hint: app.path.root,
+            },
+            {
+              label: "Global",
+              value: "global" as const,
+              hint: Global.Path.config,
+            },
+          ],
+        })
+        if (prompts.isCancel(scopeResult)) throw new UI.CancelledError()
+        scope = scopeResult
+      }
+
+      const query = await prompts.text({
+        message: "Description",
+        placeholder: "What should this agent do?",
+        validate: (x) => x && (x.length > 0 ? undefined : "Required"),
+      })
+      if (prompts.isCancel(query)) throw new UI.CancelledError()
+
+      const spinner = prompts.spinner()
+
+      spinner.start("Generating agent configuration...")
+      const generated = await Agent.generate({ description: query })
+      spinner.stop(`Agent ${generated.identifier} generated`)
+
+      const availableTools = [
+        "bash",
+        "read",
+        "write",
+        "edit",
+        "list",
+        "glob",
+        "grep",
+        "webfetch",
+        "task",
+        "todowrite",
+        "todoread",
+      ]
+
+      const selectedTools = await prompts.multiselect({
+        message: "Select tools to enable",
+        options: availableTools.map((tool) => ({
+          label: tool,
+          value: tool,
+        })),
+        initialValues: availableTools,
+      })
+      if (prompts.isCancel(selectedTools)) throw new UI.CancelledError()
+
+      const tools: Record<string, boolean> = {}
+      for (const tool of availableTools) {
+        if (!selectedTools.includes(tool)) {
+          tools[tool] = false
+        }
+      }
+
+      const frontmatter: any = {
+        description: generated.whenToUse,
+      }
+      if (Object.keys(tools).length > 0) {
+        frontmatter.tools = tools
+      }
+
+      const content = matter.stringify(generated.systemPrompt, frontmatter)
+      const filePath = path.join(
+        scope === "global" ? Global.Path.config : path.join(app.path.root, ".opencode"),
+        `agent`,
+        `${generated.identifier}.md`,
+      )
+
+      await Bun.write(filePath, content)
+
+      prompts.log.success(`Agent created: ${filePath}`)
+      prompts.outro("Done")
+    })
+  },
+})
+
+export const AgentCommand = cmd({
+  command: "agent",
+  describe: "manage agents",
+  builder: (yargs) => yargs.command(AgentCreateCommand).demandCommand(),
+  async handler() {},
+})

packages/opencode/src/cli/cmd/auth.ts

@@ -61,25 +61,56 @@ export const AuthListCommand = cmd({
         prompts.log.info(`${provider} ${UI.Style.TEXT_DIM}${envVar}`)
       }
 
-      prompts.outro(`${activeEnvVars.length} environment variables`)
+      prompts.outro(`${activeEnvVars.length} environment variable` + (activeEnvVars.length === 1 ? "" : "s"))
     }
   },
 })
 
 export const AuthLoginCommand = cmd({
-  command: "login",
+  command: "login [url]",
   describe: "log in to a provider",
-  async handler() {
+  builder: (yargs) =>
+    yargs.positional("url", {
+      describe: "opencode auth provider",
+      type: "string",
+    }),
+  async handler(args) {
     UI.empty()
     prompts.intro("Add credential")
+    if (args.url) {
+      const wellknown = await fetch(`${args.url}/.well-known/opencode`).then((x) => x.json())
+      prompts.log.info(`Running \`${wellknown.auth.command.join(" ")}\``)
+      const proc = Bun.spawn({
+        cmd: wellknown.auth.command,
+        stdout: "pipe",
+      })
+      const exit = await proc.exited
+      if (exit !== 0) {
+        prompts.log.error("Failed")
+        prompts.outro("Done")
+        return
+      }
+      const token = await new Response(proc.stdout).text()
+      await Auth.set(args.url, {
+        type: "wellknown",
+        key: wellknown.auth.env,
+        token: token.trim(),
+      })
+      prompts.log.success("Logged into " + args.url)
+      prompts.outro("Done")
+      return
+    }
+    await ModelsDev.refresh().catch(() => {})
     const providers = await ModelsDev.get()
     const priority: Record<string, number> = {
       anthropic: 0,
       "github-copilot": 1,
       openai: 2,
       google: 3,
+      openrouter: 4,
+      vercel: 5,
     }
-    let provider = await prompts.select({
+    let provider = await prompts.autocomplete({
       message: "Select provider",
       maxItems: 8,
       options: [
@@ -108,7 +139,7 @@ export const AuthLoginCommand = cmd({
     if (provider === "other") {
       provider = await prompts.text({
         message: "Enter provider id",
-        validate: (x) => (x.match(/^[a-z-]+$/) ? undefined : "a-z and hyphens only"),
+        validate: (x) => x && (x.match(/^[0-9a-z-]+$/) ? undefined : "a-z, 0-9 and hyphens only"),
       })
       if (prompts.isCancel(provider)) throw new UI.CancelledError()
       provider = provider.replace(/^@ai-sdk\//, "")
@@ -120,7 +151,7 @@ export const AuthLoginCommand = cmd({
 
     if (provider === "amazon-bedrock") {
       prompts.log.info(
-        "Amazon bedrock can be configured with standard AWS environment variables like AWS_PROFILE or AWS_ACCESS_KEY_ID",
+        "Amazon bedrock can be configured with standard AWS environment variables like AWS_BEARER_TOKEN_BEDROCK, AWS_PROFILE or AWS_ACCESS_KEY_ID",
       )
       prompts.outro("Done")
       return
@@ -162,7 +193,7 @@ export const AuthLoginCommand = cmd({
 
         const code = await prompts.text({
           message: "Paste the authorization code here: ",
-          validate: (x) => (x.length > 0 ? undefined : "Required"),
+          validate: (x) => x && (x.length > 0 ? undefined : "Required"),
         })
         if (prompts.isCancel(code)) throw new UI.CancelledError()
 
@@ -198,7 +229,7 @@ export const AuthLoginCommand = cmd({
 
         const code = await prompts.text({
           message: "Paste the authorization code here: ",
-          validate: (x) => (x.length > 0 ? undefined : "Required"),
+          validate: (x) => x && (x.length > 0 ? undefined : "Required"),
         })
         if (prompts.isCancel(code)) throw new UI.CancelledError()
 
@@ -265,9 +296,13 @@ export const AuthLoginCommand = cmd({
       return
     }
 
+    if (provider === "vercel") {
+      prompts.log.info("You can create an api key in the dashboard")
+    }
+
     const key = await prompts.password({
       message: "Enter your API key",
-      validate: (x) => (x.length > 0 ? undefined : "Required"),
+      validate: (x) => x && (x.length > 0 ? undefined : "Required"),
     })
     if (prompts.isCancel(key)) throw new UI.CancelledError()
     await Auth.set(provider, {

packages/opencode/src/cli/cmd/debug/index.ts

@@ -1,3 +1,4 @@
+import { Global } from "../../../global"
 import { bootstrap } from "../../bootstrap"
 import { cmd } from "../cmd"
 import { FileCommand } from "./file"
@@ -15,6 +16,7 @@ export const DebugCommand = cmd({
       .command(FileCommand)
       .command(ScrapCommand)
       .command(SnapshotCommand)
+      .command(PathsCommand)
       .command({
         command: "wait",
         async handler() {
@@ -26,3 +28,12 @@ export const DebugCommand = cmd({
       .demandCommand(),
   async handler() {},
 })
+
+const PathsCommand = cmd({
+  command: "paths",
+  handler() {
+    for (const [key, value] of Object.entries(Global.Path)) {
+      console.log(key.padEnd(10), value)
+    }
+  },
+})

packages/opencode/src/cli/cmd/debug/snapshot.ts

@@ -4,49 +4,45 @@ import { cmd } from "../cmd"
 
 export const SnapshotCommand = cmd({
   command: "snapshot",
-  builder: (yargs) => yargs.command(CreateCommand).command(RestoreCommand).command(DiffCommand).demandCommand(),
+  builder: (yargs) => yargs.command(TrackCommand).command(PatchCommand).command(DiffCommand).demandCommand(),
   async handler() {},
 })
 
-const CreateCommand = cmd({
-  command: "create",
+const TrackCommand = cmd({
+  command: "track",
   async handler() {
     await bootstrap({ cwd: process.cwd() }, async () => {
-      const result = await Snapshot.create("test")
-      console.log(result)
+      console.log(await Snapshot.track())
     })
   },
 })
 
-const RestoreCommand = cmd({
-  command: "restore <commit>",
+const PatchCommand = cmd({
+  command: "patch <hash>",
   builder: (yargs) =>
-    yargs.positional("commit", {
+    yargs.positional("hash", {
       type: "string",
-      description: "commit",
+      description: "hash",
       demandOption: true,
     }),
   async handler(args) {
     await bootstrap({ cwd: process.cwd() }, async () => {
-      await Snapshot.restore("test", args.commit)
-      console.log("restored")
+      console.log(await Snapshot.patch(args.hash))
     })
   },
 })
 
-export const DiffCommand = cmd({
-  command: "diff <commit>",
-  describe: "diff",
+const DiffCommand = cmd({
+  command: "diff <hash>",
   builder: (yargs) =>
-    yargs.positional("commit", {
+    yargs.positional("hash", {
       type: "string",
-      description: "commit",
+      description: "hash",
       demandOption: true,
     }),
   async handler(args) {
     await bootstrap({ cwd: process.cwd() }, async () => {
-      const diff = await Snapshot.diff("test", args.commit)
-      console.log(diff)
+      console.log(await Snapshot.diff(args.hash))
     })
   },
 })

packages/opencode/src/cli/cmd/generate.ts

@@ -1,15 +1,10 @@
 import { Server } from "../../server/server"
-import fs from "fs/promises"
-import path from "path"
 import type { CommandModule } from "yargs"
 
 export const GenerateCommand = {
   command: "generate",
   handler: async () => {
     const specs = await Server.openapi()
-    const dir = "gen"
-    await fs.rmdir(dir, { recursive: true }).catch(() => {})
-    await fs.mkdir(dir, { recursive: true })
-    await Bun.write(path.join(dir, "openapi.json"), JSON.stringify(specs, null, 2))
+    process.stdout.write(JSON.stringify(specs, null, 2))
   },
 } satisfies CommandModule

packages/opencode/src/cli/cmd/mcp.ts

@@ -19,7 +19,7 @@ export const McpAddCommand = cmd({
 
     const name = await prompts.text({
       message: "Enter MCP server name",
-      validate: (x) => (x.length > 0 ? undefined : "Required"),
+      validate: (x) => x && (x.length > 0 ? undefined : "Required"),
     })
     if (prompts.isCancel(name)) throw new UI.CancelledError()
 
@@ -44,7 +44,7 @@ export const McpAddCommand = cmd({
       const command = await prompts.text({
         message: "Enter command to run",
         placeholder: "e.g., opencode x @modelcontextprotocol/server-filesystem",
-        validate: (x) => (x.length > 0 ? undefined : "Required"),
+        validate: (x) => x && (x.length > 0 ? undefined : "Required"),
       })
       if (prompts.isCancel(command)) throw new UI.CancelledError()
 
@@ -58,6 +58,7 @@ export const McpAddCommand = cmd({
         message: "Enter MCP server URL",
         placeholder: "e.g., https://example.com/mcp",
         validate: (x) => {
+          if (!x) return "Required"
           if (x.length === 0) return "Required"
           const isValid = URL.canParse(x)
           return isValid ? undefined : "Invalid URL"

packages/opencode/src/cli/cmd/run.ts

@@ -172,8 +172,6 @@ export const RunCommand = cmd({
         parts: [
           {
             id: Identifier.ascending("part"),
-            sessionID: session.id,
-            messageID: messageID,
             type: "text",
             text: message,
           },

packages/opencode/src/cli/cmd/serve.ts

@@ -1,6 +1,5 @@
 import { Provider } from "../../provider/provider"
 import { Server } from "../../server/server"
-import { Share } from "../../share/share"
 import { bootstrap } from "../bootstrap"
 import { cmd } from "./cmd"
 
@@ -32,7 +31,6 @@ export const ServeCommand = cmd({
       const hostname = args.hostname
       const port = args.port
 
-      await Share.init()
       const server = Server.listen({
         port,
         hostname,

packages/opencode/src/cli/cmd/tui.ts

@@ -12,6 +12,17 @@ import { Bus } from "../../bus"
 import { Log } from "../../util/log"
 import { FileWatcher } from "../../file/watch"
 import { Mode } from "../../session/mode"
+import { Ide } from "../../ide"
+
+declare global {
+  const OPENCODE_TUI_PATH: string
+}
+
+if (typeof OPENCODE_TUI_PATH !== "undefined") {
+  await import(OPENCODE_TUI_PATH as string, {
+    with: { type: "file" },
+  })
+}
 
 export const TuiCommand = cmd({
   command: "$0 [project]",
@@ -35,6 +46,17 @@ export const TuiCommand = cmd({
       .option("mode", {
         type: "string",
         describe: "mode to use",
+      })
+      .option("port", {
+        type: "number",
+        describe: "port to listen on",
+        default: 0,
+      })
+      .option("hostname", {
+        alias: ["h"],
+        type: "string",
+        describe: "hostname to listen on",
+        default: "127.0.0.1",
       }),
   handler: async (args) => {
     while (true) {
@@ -53,22 +75,22 @@ export const TuiCommand = cmd({
         }
 
         const server = Server.listen({
-          port: 0,
-          hostname: "127.0.0.1",
+          port: args.port,
+          hostname: args.hostname,
         })
 
         let cmd = ["go", "run", "./main.go"]
         let cwd = Bun.fileURLToPath(new URL("../../../../tui/cmd/opencode", import.meta.url))
-        if (Bun.embeddedFiles.length > 0) {
-          const blob = Bun.embeddedFiles[0] as File
-          let binaryName = blob.name
+        const tui = Bun.embeddedFiles.find((item) => (item as File).name.includes("tui")) as File
+        if (tui) {
+          let binaryName = tui.name
           if (process.platform === "win32" && !binaryName.endsWith(".exe")) {
             binaryName += ".exe"
           }
           const binary = path.join(Global.Path.cache, "tui", binaryName)
           const file = Bun.file(binary)
           if (!(await file.exists())) {
-            await Bun.write(file, blob, { mode: 0o755 })
+            await Bun.write(file, tui, { mode: 0o755 })
             await fs.chmod(binary, 0o755)
           }
           cwd = process.cwd()
@@ -101,7 +123,7 @@ export const TuiCommand = cmd({
         })
 
         ;(async () => {
-          if (Installation.VERSION === "dev") return
+          if (Installation.isDev()) return
           if (Installation.isSnapshot()) return
           const config = await Config.global()
           if (config.autoupdate === false) return
@@ -111,9 +133,15 @@ export const TuiCommand = cmd({
           const method = await Installation.method()
           if (method === "unknown") return
           await Installation.upgrade(method, latest)
-            .then(() => {
-              Bus.publish(Installation.Event.Updated, { version: latest })
-            })
+            .then(() => Bus.publish(Installation.Event.Updated, { version: latest }))
+            .catch(() => {})
+        })()
+        ;(async () => {
+          if (Ide.alreadyInstalled()) return
+          const ide = Ide.ide()
+          if (ide === "unknown") return
+          await Ide.install(ide)
+            .then(() => Bus.publish(Ide.Event.Installed, { ide }))
             .catch(() => {})
         })()
 

packages/opencode/src/cli/cmd/upgrade.ts

@@ -32,7 +32,7 @@ export const UpgradeCommand = {
       return
     }
     prompts.log.info("Using method: " + method)
-    const target = args.target ?? (await Installation.latest())
+    const target = args.target ? args.target.replace(/^v/, "") : await Installation.latest()
 
     if (Installation.VERSION === target) {
       prompts.log.warn(`opencode upgrade skipped: ${target} is already installed`)

packages/opencode/src/cli/error.ts

@@ -5,7 +5,11 @@ import { UI } from "./ui"
 export function FormatError(input: unknown) {
   if (MCP.Failed.isInstance(input))
     return `MCP server "${input.data.name}" failed. Note, opencode does not support MCP authentication yet.`
-  if (Config.JsonError.isInstance(input)) return `Config file at ${input.data.path} is not valid JSON`
+  if (Config.JsonError.isInstance(input)) {
+    return (
+      `Config file at ${input.data.path} is not valid JSON(C)` + (input.data.message ? `: ${input.data.message}` : "")
+    )
+  }
   if (Config.InvalidError.isInstance(input))
     return [
       `Config file at ${input.data.path} is invalid`,

packages/opencode/src/config/config.ts

@@ -1,5 +1,6 @@
 import { Log } from "../util/log"
 import path from "path"
+import os from "os"
 import { z } from "zod"
 import { App } from "../app/app"
 import { Filesystem } from "../util/filesystem"
@@ -9,23 +10,104 @@ import { Global } from "../global"
 import fs from "fs/promises"
 import { lazy } from "../util/lazy"
 import { NamedError } from "../util/error"
+import matter from "gray-matter"
+import { Flag } from "../flag/flag"
+import { Auth } from "../auth"
+import { type ParseError as JsoncParseError, parse as parseJsonc, printParseErrorCode } from "jsonc-parser"
 
 export namespace Config {
   const log = Log.create({ service: "config" })
 
   export const state = App.state("config", async (app) => {
+    const auth = await Auth.all()
     let result = await global()
     for (const file of ["opencode.jsonc", "opencode.json"]) {
       const found = await Filesystem.findUp(file, app.path.cwd, app.path.root)
       for (const resolved of found.toReversed()) {
-        result = mergeDeep(result, await load(resolved))
+        result = mergeDeep(result, await loadFile(resolved))
       }
     }
 
+    // Override with custom config if provided
+    if (Flag.OPENCODE_CONFIG) {
+      result = mergeDeep(result, await loadFile(Flag.OPENCODE_CONFIG))
+      log.debug("loaded custom config", { path: Flag.OPENCODE_CONFIG })
+    }
+
+    for (const [key, value] of Object.entries(auth)) {
+      if (value.type === "wellknown") {
+        process.env[value.key] = value.token
+        const wellknown = await fetch(`${key}/.well-known/opencode`).then((x) => x.json())
+        result = mergeDeep(result, await load(JSON.stringify(wellknown.config ?? {}), process.cwd()))
+      }
+    }
+
+    result.agent = result.agent || {}
+    const markdownAgents = [
+      ...(await Filesystem.globUp("agent/*.md", Global.Path.config, Global.Path.config)),
+      ...(await Filesystem.globUp(".opencode/agent/*.md", app.path.cwd, app.path.root)),
+    ]
+    for (const item of markdownAgents) {
+      const content = await Bun.file(item).text()
+      const md = matter(content)
+      if (!md.data) continue
+
+      const config = {
+        name: path.basename(item, ".md"),
+        ...md.data,
+        prompt: md.content.trim(),
+      }
+      const parsed = Agent.safeParse(config)
+      if (parsed.success) {
+        result.agent = mergeDeep(result.agent, {
+          [config.name]: parsed.data,
+        })
+        continue
+      }
+      throw new InvalidError({ path: item }, { cause: parsed.error })
+    }
+
+    // Load mode markdown files
+    result.mode = result.mode || {}
+    const markdownModes = [
+      ...(await Filesystem.globUp("mode/*.md", Global.Path.config, Global.Path.config)),
+      ...(await Filesystem.globUp(".opencode/mode/*.md", app.path.cwd, app.path.root)),
+    ]
+    for (const item of markdownModes) {
+      const content = await Bun.file(item).text()
+      const md = matter(content)
+      if (!md.data) continue
+
+      const config = {
+        name: path.basename(item, ".md"),
+        ...md.data,
+        prompt: md.content.trim(),
+      }
+      const parsed = Mode.safeParse(config)
+      if (parsed.success) {
+        result.mode = mergeDeep(result.mode, {
+          [config.name]: parsed.data,
+        })
+        continue
+      }
+      throw new InvalidError({ path: item }, { cause: parsed.error })
+    }
+
+    result.plugin = result.plugin || []
+    result.plugin.push(
+      ...[
+        ...(await Filesystem.globUp("plugin/*.ts", Global.Path.config, Global.Path.config)),
+        ...(await Filesystem.globUp(".opencode/plugin/*.ts", app.path.cwd, app.path.root)),
+      ].map((x) => "file://" + x),
+    )
+
     // Handle migration from autoshare to share field
     if (result.autoshare === true && !result.share) {
       result.share = "auto"
     }
+    if (result.keybinds?.messages_revert && !result.keybinds.messages_undo) {
+      result.keybinds.messages_undo = result.keybinds.messages_revert
+    }
 
     if (!result.username) {
       const os = await import("os")
@@ -57,6 +139,7 @@ export namespace Config {
       type: z.literal("remote").describe("Type of MCP server connection"),
       url: z.string().describe("URL of the remote MCP server"),
       enabled: z.boolean().optional().describe("Enable or disable the MCP server on startup"),
+      headers: z.record(z.string(), z.string()).optional().describe("Headers to send with the request"),
     })
     .strict()
     .openapi({
@@ -69,24 +152,35 @@ export namespace Config {
   export const Mode = z
     .object({
       model: z.string().optional(),
+      temperature: z.number().optional(),
+      top_p: z.number().optional(),
       prompt: z.string().optional(),
       tools: z.record(z.string(), z.boolean()).optional(),
+      disable: z.boolean().optional(),
     })
     .openapi({
       ref: "ModeConfig",
     })
   export type Mode = z.infer<typeof Mode>
 
+  export const Agent = Mode.extend({
+    description: z.string(),
+  }).openapi({
+    ref: "AgentConfig",
+  })
+
   export const Keybinds = z
     .object({
       leader: z.string().optional().default("ctrl+x").describe("Leader key for keybind combinations"),
       app_help: z.string().optional().default("<leader>h").describe("Show help dialog"),
-      switch_mode: z.string().optional().default("tab").describe("Switch mode"),
+      switch_mode: z.string().optional().default("tab").describe("Next mode"),
+      switch_mode_reverse: z.string().optional().default("shift+tab").describe("Previous Mode"),
       editor_open: z.string().optional().default("<leader>e").describe("Open external editor"),
+      session_export: z.string().optional().default("<leader>x").describe("Export session to editor"),
       session_new: z.string().optional().default("<leader>n").describe("Create a new session"),
       session_list: z.string().optional().default("<leader>l").describe("List all sessions"),
       session_share: z.string().optional().default("<leader>s").describe("Share current session"),
-      session_unshare: z.string().optional().default("<leader>u").describe("Unshare current session"),
+      session_unshare: z.string().optional().default("none").describe("Unshare current session"),
       session_interrupt: z.string().optional().default("esc").describe("Interrupt current session"),
       session_compact: z.string().optional().default("<leader>c").describe("Compact the session"),
       tool_details: z.string().optional().default("<leader>d").describe("Toggle tool details"),
@@ -115,7 +209,9 @@ export namespace Config {
       messages_last: z.string().optional().default("ctrl+alt+g").describe("Navigate to last message"),
       messages_layout_toggle: z.string().optional().default("<leader>p").describe("Toggle layout"),
       messages_copy: z.string().optional().default("<leader>y").describe("Copy message"),
-      messages_revert: z.string().optional().default("<leader>r").describe("Revert message"),
+      messages_revert: z.string().optional().default("none").describe("@deprecated use messages_undo. Revert message"),
+      messages_undo: z.string().optional().default("<leader>u").describe("Undo message"),
+      messages_redo: z.string().optional().default("<leader>r").describe("Redo message"),
       app_exit: z.string().optional().default("ctrl+c,<leader>q").describe("Exit the application"),
     })
     .strict()
@@ -123,15 +219,26 @@ export namespace Config {
       ref: "KeybindsConfig",
     })
 
+  export const Layout = z.enum(["auto", "stretch"]).openapi({
+    ref: "LayoutConfig",
+  })
+  export type Layout = z.infer<typeof Layout>
+
+  export const Permission = z.union([z.literal("ask"), z.literal("allow")])
+  export type Permission = z.infer<typeof Permission>
+
   export const Info = z
     .object({
       $schema: z.string().optional().describe("JSON schema reference for configuration validation"),
       theme: z.string().optional().describe("Theme name to use for the interface"),
       keybinds: Keybinds.optional().describe("Custom keybind configurations"),
+      plugin: z.string().array().optional(),
       share: z
-        .enum(["auto", "disabled"])
+        .enum(["manual", "auto", "disabled"])
         .optional()
-        .describe("Control sharing behavior: 'auto' enables automatic sharing, 'disabled' disables all sharing"),
+        .describe(
+          "Control sharing behavior:'manual' allows manual sharing via commands, 'auto' enables automatic sharing, 'disabled' disables all sharing",
+        ),
       autoshare: z
         .boolean()
         .optional()
@@ -139,6 +246,12 @@ export namespace Config {
       autoupdate: z.boolean().optional().describe("Automatically update to the latest version"),
       disabled_providers: z.array(z.string()).optional().describe("Disable providers that are loaded automatically"),
       model: z.string().describe("Model to use in the format of provider/model, eg anthropic/claude-2").optional(),
+      small_model: z
+        .string()
+        .describe(
+          "Small model to use for tasks like summarization and title generation in the format of provider/model",
+        )
+        .optional(),
       username: z
         .string()
         .optional()
@@ -149,19 +262,69 @@ export namespace Config {
           plan: Mode.optional(),
         })
         .catchall(Mode)
-        .optional(),
-      log_level: Log.Level.optional().describe("Minimum log level to write to log files"),
+        .optional()
+        .describe("Modes configuration, see https://opencode.ai/docs/modes"),
+      agent: z
+        .object({
+          general: Agent.optional(),
+        })
+        .catchall(Agent)
+        .optional()
+        .describe("Modes configuration, see https://opencode.ai/docs/modes"),
       provider: z
         .record(
-          ModelsDev.Provider.partial().extend({
-            models: z.record(ModelsDev.Model.partial()),
-            options: z.record(z.any()).optional(),
-          }),
+          ModelsDev.Provider.partial()
+            .extend({
+              models: z.record(ModelsDev.Model.partial()),
+              options: z
+                .object({
+                  apiKey: z.string().optional(),
+                  baseURL: z.string().optional(),
+                })
+                .catchall(z.any())
+                .optional(),
+            })
+            .strict(),
         )
         .optional()
         .describe("Custom provider configurations and model overrides"),
       mcp: z.record(z.string(), Mcp).optional().describe("MCP (Model Context Protocol) server configurations"),
+      formatter: z
+        .record(
+          z.string(),
+          z.object({
+            disabled: z.boolean().optional(),
+            command: z.array(z.string()).optional(),
+            environment: z.record(z.string(), z.string()).optional(),
+            extensions: z.array(z.string()).optional(),
+          }),
+        )
+        .optional(),
+      lsp: z
+        .record(
+          z.string(),
+          z.union([
+            z.object({
+              disabled: z.literal(true),
+            }),
+            z.object({
+              command: z.array(z.string()),
+              extensions: z.array(z.string()).optional(),
+              disabled: z.boolean().optional(),
+              env: z.record(z.string(), z.string()).optional(),
+              initialization: z.record(z.string(), z.any()).optional(),
+            }),
+          ]),
+        )
+        .optional(),
       instructions: z.array(z.string()).optional().describe("Additional instruction files or patterns to include"),
+      layout: Layout.optional().describe("@deprecated Always uses stretch layout."),
+      permission: z
+        .object({
+          edit: Permission.optional(),
+          bash: z.union([Permission, z.record(z.string(), Permission)]).optional(),
+        })
+        .optional(),
       experimental: z
         .object({
           hook: z
@@ -197,10 +360,11 @@ export namespace Config {
   export type Info = z.output<typeof Info>
 
   export const global = lazy(async () => {
-    let result = pipe(
+    let result: Info = pipe(
       {},
-      mergeDeep(await load(path.join(Global.Path.config, "config.json"))),
-      mergeDeep(await load(path.join(Global.Path.config, "opencode.json"))),
+      mergeDeep(await loadFile(path.join(Global.Path.config, "config.json"))),
+      mergeDeep(await loadFile(path.join(Global.Path.config, "opencode.json"))),
+      mergeDeep(await loadFile(path.join(Global.Path.config, "opencode.jsonc"))),
     )
 
     await import(path.join(Global.Path.config, "config"), {
@@ -221,51 +385,93 @@ export namespace Config {
     return result
   })
 
-  async function load(configPath: string) {
-    let text = await Bun.file(configPath)
+  async function loadFile(filepath: string): Promise<Info> {
+    log.info("loading", { path: filepath })
+    let text = await Bun.file(filepath)
       .text()
       .catch((err) => {
         if (err.code === "ENOENT") return
-        throw new JsonError({ path: configPath }, { cause: err })
+        throw new JsonError({ path: filepath }, { cause: err })
       })
     if (!text) return {}
+    return load(text, filepath)
+  }
 
+  async function load(text: string, filepath: string) {
     text = text.replace(/\{env:([^}]+)\}/g, (_, varName) => {
       return process.env[varName] || ""
     })
 
-    const fileMatches = text.match(/"?\{file:([^}]+)\}"?/g)
+    const fileMatches = text.match(/\{file:[^}]+\}/g)
     if (fileMatches) {
-      const configDir = path.dirname(configPath)
+      const configDir = path.dirname(filepath)
+      const lines = text.split("\n")
+
       for (const match of fileMatches) {
-        const filePath = match.replace(/^"?\{file:/, "").replace(/\}"?$/, "")
+        const lineIndex = lines.findIndex((line) => line.includes(match))
+        if (lineIndex !== -1 && lines[lineIndex].trim().startsWith("//")) {
+          continue // Skip if line is commented
+        }
+        let filePath = match.replace(/^\{file:/, "").replace(/\}$/, "")
+        if (filePath.startsWith("~/")) {
+          filePath = path.join(os.homedir(), filePath.slice(2))
+        }
         const resolvedPath = path.isAbsolute(filePath) ? filePath : path.resolve(configDir, filePath)
-        const fileContent = await Bun.file(resolvedPath).text()
-        text = text.replace(match, JSON.stringify(fileContent))
+        const fileContent = (await Bun.file(resolvedPath).text()).trim()
+        // escape newlines/quotes, strip outer quotes
+        text = text.replace(match, JSON.stringify(fileContent).slice(1, -1))
       }
     }
 
-    let data: any
-    try {
-      data = JSON.parse(text)
-    } catch (err) {
-      throw new JsonError({ path: configPath }, { cause: err as Error })
+    const errors: JsoncParseError[] = []
+    const data = parseJsonc(text, errors, { allowTrailingComma: true })
+    if (errors.length) {
+      const lines = text.split("\n")
+      const errorDetails = errors
+        .map((e) => {
+          const beforeOffset = text.substring(0, e.offset).split("\n")
+          const line = beforeOffset.length
+          const column = beforeOffset[beforeOffset.length - 1].length + 1
+          const problemLine = lines[line - 1]
+
+          const error = `${printParseErrorCode(e.error)} at line ${line}, column ${column}`
+          if (!problemLine) return error
+
+          return `${error}\n   Line ${line}: ${problemLine}\n${"".padStart(column + 9)}^`
+        })
+        .join("\n")
+
+      throw new JsonError({
+        path: filepath,
+        message: `\n--- JSONC Input ---\n${text}\n--- Errors ---\n${errorDetails}\n--- End ---`,
+      })
     }
 
     const parsed = Info.safeParse(data)
     if (parsed.success) {
       if (!parsed.data.$schema) {
         parsed.data.$schema = "https://opencode.ai/config.json"
-        await Bun.write(configPath, JSON.stringify(parsed.data, null, 2))
+        await Bun.write(filepath, JSON.stringify(parsed.data, null, 2))
       }
-      return parsed.data
+      const data = parsed.data
+      if (data.plugin) {
+        for (let i = 0; i < data.plugin?.length; i++) {
+          const plugin = data.plugin[i]
+          try {
+            data.plugin[i] = import.meta.resolve(plugin, filepath)
+          } catch (err) {}
+        }
+      }
+      return data
     }
-    throw new InvalidError({ path: configPath, issues: parsed.error.issues })
+
+    throw new InvalidError({ path: filepath, issues: parsed.error.issues })
   }
   export const JsonError = NamedError.create(
     "ConfigJsonError",
     z.object({
       path: z.string(),
+      message: z.string().optional(),
     }),
   )
 

packages/opencode/src/config/hooks.ts

@@ -31,9 +31,13 @@ export namespace ConfigHooks {
       }
     })
 
-    Bus.subscribe(Session.Event.Idle, async () => {
+    Bus.subscribe(Session.Event.Idle, async (payload) => {
       const cfg = await Config.get()
       if (cfg.experimental?.hook?.session_completed) {
+        const session = await Session.get(payload.properties.sessionID)
+        // Only fire hook for top-level sessions (not subagent sessions)
+        if (session.parentID) return
+
         for (const item of cfg.experimental.hook.session_completed) {
           log.info("session_completed", {
             command: item.command,

packages/opencode/src/file/fzf.ts

@@ -5,6 +5,7 @@ import { z } from "zod"
 import { NamedError } from "../util/error"
 import { lazy } from "../util/lazy"
 import { Log } from "../util/log"
+import { ZipReader, BlobReader, BlobWriter } from "@zip.js/zip.js"
 
 export namespace Fzf {
   const log = Log.create({ service: "fzf" })
@@ -45,7 +46,10 @@ export namespace Fzf {
       log.info("found", { filepath })
       return { filepath }
     }
-    filepath = path.join(Global.Path.bin, "fzf" + (process.platform === "win32" ? ".exe" : ""))
+    filepath = path.join(
+      Global.Path.bin,
+      "fzf" + (process.platform === "win32" ? ".exe" : ""),
+    )
 
     const file = Bun.file(filepath)
     if (!(await file.exists())) {
@@ -53,15 +57,18 @@ export namespace Fzf {
       const arch = archMap[process.arch as keyof typeof archMap] ?? "amd64"
 
       const config = PLATFORM[process.platform as keyof typeof PLATFORM]
-      if (!config) throw new UnsupportedPlatformError({ platform: process.platform })
+      if (!config)
+        throw new UnsupportedPlatformError({ platform: process.platform })
 
       const version = VERSION
-      const platformName = process.platform === "win32" ? "windows" : process.platform
+      const platformName =
+        process.platform === "win32" ? "windows" : process.platform
       const filename = `fzf-${version}-${platformName}_${arch}.${config.extension}`
       const url = `https://github.com/junegunn/fzf/releases/download/v${version}/${filename}`
 
       const response = await fetch(url)
-      if (!response.ok) throw new DownloadFailedError({ url, status: response.status })
+      if (!response.ok)
+        throw new DownloadFailedError({ url, status: response.status })
 
       const buffer = await response.arrayBuffer()
       const archivePath = path.join(Global.Path.bin, filename)
@@ -80,17 +87,32 @@ export namespace Fzf {
           })
       }
       if (config.extension === "zip") {
-        const proc = Bun.spawn(["unzip", "-j", archivePath, "fzf.exe", "-d", Global.Path.bin], {
-          cwd: Global.Path.bin,
-          stderr: "pipe",
-          stdout: "ignore",
-        })
-        await proc.exited
-        if (proc.exitCode !== 0)
+        const zipFileReader = new ZipReader(new BlobReader(new Blob([await Bun.file(archivePath).arrayBuffer()])));
+        const entries = await zipFileReader.getEntries();
+        let fzfEntry: any;
+        for (const entry of entries) {
+          if (entry.filename === "fzf.exe") {
+            fzfEntry = entry;
+            break;
+          }
+        }
+
+        if (!fzfEntry) {
           throw new ExtractionFailedError({
             filepath: archivePath,
-            stderr: await Bun.readableStreamToText(proc.stderr),
-          })
+            stderr: "fzf.exe not found in zip archive",
+          });
+        }
+
+        const fzfBlob = await fzfEntry.getData(new BlobWriter());
+        if (!fzfBlob) {
+          throw new ExtractionFailedError({
+            filepath: archivePath,
+            stderr: "Failed to extract fzf.exe from zip archive",
+          });
+        }
+        await Bun.write(filepath, await fzfBlob.arrayBuffer());
+        await zipFileReader.close();
       }
       await fs.unlink(archivePath)
       if (process.platform !== "win32") await fs.chmod(filepath, 0o755)
@@ -105,4 +127,4 @@ export namespace Fzf {
     const { filepath } = await state()
     return filepath
   }
-}
+}

packages/opencode/src/file/ripgrep.ts

@@ -7,6 +7,7 @@ import { NamedError } from "../util/error"
 import { lazy } from "../util/lazy"
 import { $ } from "bun"
 import { Fzf } from "./fzf"
+import { ZipReader, BlobReader, BlobWriter } from "@zip.js/zip.js"
 
 export namespace Ripgrep {
   const Stats = z.object({
@@ -34,27 +35,25 @@ export namespace Ripgrep {
 
   export const Match = z.object({
     type: z.literal("match"),
-    data: z
-      .object({
-        path: z.object({
-          text: z.string(),
-        }),
-        lines: z.object({
-          text: z.string(),
-        }),
-        line_number: z.number(),
-        absolute_offset: z.number(),
-        submatches: z.array(
-          z.object({
-            match: z.object({
-              text: z.string(),
-            }),
-            start: z.number(),
-            end: z.number(),
+    data: z.object({
+      path: z.object({
+        text: z.string(),
+      }),
+      lines: z.object({
+        text: z.string(),
+      }),
+      line_number: z.number(),
+      absolute_offset: z.number(),
+      submatches: z.array(
+        z.object({
+          match: z.object({
+            text: z.string(),
           }),
-        ),
-      })
-      .openapi({ ref: "Match" }),
+          start: z.number(),
+          end: z.number(),
+        }),
+      ),
+    }),
   })
 
   const End = z.object({
@@ -161,17 +160,34 @@ export namespace Ripgrep {
           })
       }
       if (config.extension === "zip") {
-        const proc = Bun.spawn(["unzip", "-j", archivePath, "*/rg.exe", "-d", Global.Path.bin], {
-          cwd: Global.Path.bin,
-          stderr: "pipe",
-          stdout: "ignore",
-        })
-        await proc.exited
-        if (proc.exitCode !== 0)
-          throw new ExtractionFailedError({
-            filepath: archivePath,
-            stderr: await Bun.readableStreamToText(proc.stderr),
-          })
+        if (config.extension === "zip") {
+          const zipFileReader = new ZipReader(new BlobReader(new Blob([await Bun.file(archivePath).arrayBuffer()])))
+          const entries = await zipFileReader.getEntries()
+          let rgEntry: any
+          for (const entry of entries) {
+            if (entry.filename.endsWith("rg.exe")) {
+              rgEntry = entry
+              break
+            }
+          }
+
+          if (!rgEntry) {
+            throw new ExtractionFailedError({
+              filepath: archivePath,
+              stderr: "rg.exe not found in zip archive",
+            })
+          }
+
+          const rgBlob = await rgEntry.getData(new BlobWriter())
+          if (!rgBlob) {
+            throw new ExtractionFailedError({
+              filepath: archivePath,
+              stderr: "Failed to extract rg.exe from zip archive",
+            })
+          }
+          await Bun.write(filepath, await rgBlob.arrayBuffer())
+          await zipFileReader.close()
+        }
       }
       await fs.unlink(archivePath)
       if (!platformKey.endsWith("-win32")) await fs.chmod(filepath, 0o755)
@@ -233,6 +249,7 @@ export namespace Ripgrep {
       children: [],
     }
     for (const file of files) {
+      if (file.includes(".opencode")) continue
       const parts = file.split(path.sep)
       getPath(root, parts, true)
     }

packages/opencode/src/flag/flag.ts

@@ -1,6 +1,7 @@
 export namespace Flag {
   export const OPENCODE_AUTO_SHARE = truthy("OPENCODE_AUTO_SHARE")
   export const OPENCODE_DISABLE_WATCHER = truthy("OPENCODE_DISABLE_WATCHER")
+  export const OPENCODE_CONFIG = process.env["OPENCODE_CONFIG"]
 
   function truthy(key: string) {
     const value = process.env[key]?.toLowerCase()

packages/opencode/src/format/formatter.ts

@@ -1,7 +1,6 @@
 import { App } from "../app/app"
 import { BunProc } from "../bun"
 import { Filesystem } from "../util/filesystem"
-import path from "path"
 
 export interface Info {
   name: string
@@ -65,14 +64,57 @@ export const prettier: Info = {
   ],
   async enabled() {
     const app = App.info()
-    const nms = await Filesystem.findUp("node_modules", app.path.cwd, app.path.root)
-    for (const item of nms) {
-      if (await Bun.file(path.join(item, ".bin", "prettier")).exists()) return true
+    const items = await Filesystem.findUp("package.json", app.path.cwd, app.path.root)
+    for (const item of items) {
+      const json = await Bun.file(item).json()
+      if (json.dependencies?.prettier) return true
+      if (json.devDependencies?.prettier) return true
     }
     return false
   },
 }
 
+export const biome: Info = {
+  name: "biome",
+  command: [BunProc.which(), "x", "biome", "format", "--write", "$FILE"],
+  environment: {
+    BUN_BE_BUN: "1",
+  },
+  extensions: [
+    ".js",
+    ".jsx",
+    ".mjs",
+    ".cjs",
+    ".ts",
+    ".tsx",
+    ".mts",
+    ".cts",
+    ".html",
+    ".htm",
+    ".css",
+    ".scss",
+    ".sass",
+    ".less",
+    ".vue",
+    ".svelte",
+    ".json",
+    ".jsonc",
+    ".yaml",
+    ".yml",
+    ".toml",
+    ".xml",
+    ".md",
+    ".mdx",
+    ".graphql",
+    ".gql",
+  ],
+  async enabled() {
+    const app = App.info()
+    const items = await Filesystem.findUp("biome.json", app.path.cwd, app.path.root)
+    return items.length > 0
+  },
+}
+
 export const zig: Info = {
   name: "zig",
   command: ["zig", "fmt", "$FILE"],
@@ -87,7 +129,9 @@ export const clang: Info = {
   command: ["clang-format", "-i", "$FILE"],
   extensions: [".c", ".cc", ".cpp", ".cxx", ".c++", ".h", ".hh", ".hpp", ".hxx", ".h++", ".ino", ".C", ".H"],
   async enabled() {
-    return Bun.which("clang-format") !== null
+    const app = App.info()
+    const items = await Filesystem.findUp(".clang-format", app.path.cwd, app.path.root)
+    return items.length > 0
   },
 }
 
@@ -105,7 +149,29 @@ export const ruff: Info = {
   command: ["ruff", "format", "$FILE"],
   extensions: [".py", ".pyi"],
   async enabled() {
-    return Bun.which("ruff") !== null
+    if (!Bun.which("ruff")) return false
+    const app = App.info()
+    const configs = ["pyproject.toml", "ruff.toml", ".ruff.toml"]
+    for (const config of configs) {
+      const found = await Filesystem.findUp(config, app.path.cwd, app.path.root)
+      if (found.length > 0) {
+        if (config === "pyproject.toml") {
+          const content = await Bun.file(found[0]).text()
+          if (content.includes("[tool.ruff]")) return true
+        } else {
+          return true
+        }
+      }
+    }
+    const deps = ["requirements.txt", "pyproject.toml", "Pipfile"]
+    for (const dep of deps) {
+      const found = await Filesystem.findUp(dep, app.path.cwd, app.path.root)
+      if (found.length > 0) {
+        const content = await Bun.file(found[0]).text()
+        if (content.includes("ruff")) return true
+      }
+    }
+    return false
   },
 }
 

packages/opencode/src/format/index.ts

@@ -5,20 +5,40 @@ import { Log } from "../util/log"
 import path from "path"
 
 import * as Formatter from "./formatter"
+import { Config } from "../config/config"
+import { mergeDeep } from "remeda"
 
 export namespace Format {
   const log = Log.create({ service: "format" })
 
-  const state = App.state("format", () => {
+  const state = App.state("format", async () => {
     const enabled: Record<string, boolean> = {}
+    const cfg = await Config.get()
+
+    const formatters = { ...Formatter } as Record<string, Formatter.Info>
+    for (const [name, item] of Object.entries(cfg.formatter ?? {})) {
+      if (item.disabled) {
+        delete formatters[name]
+        continue
+      }
+      const result: Formatter.Info = mergeDeep(formatters[name] ?? {}, {
+        command: [],
+        extensions: [],
+        ...item,
+      })
+      result.enabled = async () => true
+      result.name = name
+      formatters[name] = result
+    }
 
     return {
       enabled,
+      formatters,
     }
   })
 
   async function isEnabled(item: Formatter.Info) {
-    const s = state()
+    const s = await state()
     let status = s.enabled[item.name]
     if (status === undefined) {
       status = await item.enabled()
@@ -28,8 +48,10 @@ export namespace Format {
   }
 
   async function getFormatter(ext: string) {
+    const formatters = await state().then((x) => x.formatters)
     const result = []
-    for (const item of Object.values(Formatter)) {
+    for (const item of Object.values(formatters)) {
+      log.info("checking", { name: item.name, ext })
       if (!item.extensions.includes(ext)) continue
       if (!(await isEnabled(item))) continue
       result.push(item)

packages/opencode/src/global/index.ts

@@ -13,7 +13,7 @@ export namespace Global {
   export const Path = {
     data,
     bin: path.join(data, "bin"),
-    providers: path.join(config, "providers"),
+    log: path.join(data, "log"),
     cache,
     config,
     state,
@@ -23,11 +23,11 @@ export namespace Global {
 await Promise.all([
   fs.mkdir(Global.Path.data, { recursive: true }),
   fs.mkdir(Global.Path.config, { recursive: true }),
-  fs.mkdir(Global.Path.providers, { recursive: true }),
   fs.mkdir(Global.Path.state, { recursive: true }),
+  fs.mkdir(Global.Path.log, { recursive: true }),
 ])
 
-const CACHE_VERSION = "2"
+const CACHE_VERSION = "4"
 
 const version = await Bun.file(path.join(Global.Path.cache, "version"))
   .text()

packages/opencode/src/id/id.ts

@@ -5,6 +5,7 @@ export namespace Identifier {
   const prefixes = {
     session: "ses",
     message: "msg",
+    permission: "per",
     user: "usr",
     part: "prt",
   } as const

packages/opencode/src/ide/index.ts

@@ -0,0 +1,74 @@
+import { spawn } from "bun"
+import { z } from "zod"
+import { NamedError } from "../util/error"
+import { Log } from "../util/log"
+import { Bus } from "../bus"
+
+const SUPPORTED_IDES = [
+  { name: "Windsurf" as const, cmd: "windsurf" },
+  { name: "Visual Studio Code" as const, cmd: "code" },
+  { name: "Cursor" as const, cmd: "cursor" },
+  { name: "VSCodium" as const, cmd: "codium" },
+]
+
+export namespace Ide {
+  const log = Log.create({ service: "ide" })
+
+  export const Event = {
+    Installed: Bus.event(
+      "ide.installed",
+      z.object({
+        ide: z.string(),
+      }),
+    ),
+  }
+
+  export const AlreadyInstalledError = NamedError.create("AlreadyInstalledError", z.object({}))
+
+  export const InstallFailedError = NamedError.create(
+    "InstallFailedError",
+    z.object({
+      stderr: z.string(),
+    }),
+  )
+
+  export function ide() {
+    if (process.env["TERM_PROGRAM"] === "vscode") {
+      const v = process.env["GIT_ASKPASS"]
+      for (const ide of SUPPORTED_IDES) {
+        if (v?.includes(ide.name)) return ide.name
+      }
+    }
+    return "unknown"
+  }
+
+  export function alreadyInstalled() {
+    return process.env["OPENCODE_CALLER"] === "vscode"
+  }
+
+  export async function install(ide: (typeof SUPPORTED_IDES)[number]["name"]) {
+    const cmd = SUPPORTED_IDES.find((i) => i.name === ide)?.cmd
+    if (!cmd) throw new Error(`Unknown IDE: ${ide}`)
+
+    const p = spawn([cmd, "--install-extension", "sst-dev.opencode"], {
+      stdout: "pipe",
+      stderr: "pipe",
+    })
+    await p.exited
+    const stdout = await new Response(p.stdout).text()
+    const stderr = await new Response(p.stderr).text()
+
+    log.info("installed", {
+      ide,
+      stdout,
+      stderr,
+    })
+
+    if (p.exitCode !== 0) {
+      throw new InstallFailedError({ stderr })
+    }
+    if (stdout.includes("already installed")) {
+      throw new AlreadyInstalledError({})
+    }
+  }
+}

packages/opencode/src/index.ts

@@ -5,6 +5,7 @@ import { RunCommand } from "./cli/cmd/run"
 import { GenerateCommand } from "./cli/cmd/generate"
 import { Log } from "./util/log"
 import { AuthCommand } from "./cli/cmd/auth"
+import { AgentCommand } from "./cli/cmd/agent"
 import { UpgradeCommand } from "./cli/cmd/upgrade"
 import { ModelsCommand } from "./cli/cmd/models"
 import { UI } from "./cli/ui"
@@ -16,6 +17,10 @@ import { TuiCommand } from "./cli/cmd/tui"
 import { DebugCommand } from "./cli/cmd/debug"
 import { StatsCommand } from "./cli/cmd/stats"
 import { McpCommand } from "./cli/cmd/mcp"
+import { GithubCommand } from "./cli/cmd/github"
+import { Trace } from "./trace"
+
+Trace.init()
 
 const cancel = new AbortController()
 
@@ -40,25 +45,21 @@ const cli = yargs(hideBin(process.argv))
     describe: "print logs to stderr",
     type: "boolean",
   })
-  .middleware(async () => {
-    await Log.init({ print: process.argv.includes("--print-logs") })
-
-    try {
-      const { Config } = await import("./config/config")
-      const { App } = await import("./app/app")
-
-      App.provide({ cwd: process.cwd() }, async () => {
-        const cfg = await Config.get()
-        if (cfg.log_level) {
-          Log.setLevel(cfg.log_level as Log.Level)
-        } else {
-          const defaultLevel = Installation.isDev() ? "DEBUG" : "INFO"
-          Log.setLevel(defaultLevel)
-        }
-      })
-    } catch (e) {
-      Log.Default.error("failed to load config", { error: e })
-    }
+  .option("log-level", {
+    describe: "log level",
+    type: "string",
+    choices: ["DEBUG", "INFO", "WARN", "ERROR"],
+  })
+  .middleware(async (opts) => {
+    await Log.init({
+      print: process.argv.includes("--print-logs"),
+      dev: Installation.isDev(),
+      level: (() => {
+        if (opts.logLevel) return opts.logLevel as Log.Level
+        if (Installation.isDev()) return "DEBUG"
+        return "INFO"
+      })(),
+    })
 
     Log.Default.info("opencode", {
       version: Installation.VERSION,
@@ -72,14 +73,17 @@ const cli = yargs(hideBin(process.argv))
   .command(GenerateCommand)
   .command(DebugCommand)
   .command(AuthCommand)
+  .command(AgentCommand)
   .command(UpgradeCommand)
   .command(ServeCommand)
   .command(ModelsCommand)
   .command(StatsCommand)
+  .command(GithubCommand)
   .fail((msg) => {
     if (msg.startsWith("Unknown argument") || msg.startsWith("Not enough non-option arguments")) {
       cli.showHelp("log")
     }
+    process.exit(1)
   })
   .strict()
 

packages/opencode/src/installation/index.ts

@@ -136,6 +136,7 @@ export namespace Installation {
   }
 
   export const VERSION = typeof OPENCODE_VERSION === "string" ? OPENCODE_VERSION : "dev"
+  export const USER_AGENT = `opencode/${VERSION}`
 
   export async function latest() {
     return fetch("https://api.github.com/repos/sst/opencode/releases/latest")

packages/opencode/src/lsp/index.ts

@@ -4,6 +4,8 @@ import { LSPClient } from "./client"
 import path from "path"
 import { LSPServer } from "./server"
 import { z } from "zod"
+import { Config } from "../config/config"
+import { spawn } from "child_process"
 
 export namespace LSP {
   const log = Log.create({ service: "lsp" })
@@ -55,8 +57,35 @@ export namespace LSP {
     "lsp",
     async () => {
       const clients: LSPClient.Info[] = []
+      const servers: Record<string, LSPServer.Info> = LSPServer
+      const cfg = await Config.get()
+      for (const [name, item] of Object.entries(cfg.lsp ?? {})) {
+        const existing = servers[name]
+        if (item.disabled) {
+          delete servers[name]
+          continue
+        }
+        servers[name] = {
+          ...existing,
+          root: existing?.root ?? (async (_file, app) => app.path.root),
+          extensions: item.extensions ?? existing.extensions,
+          spawn: async (_app, root) => {
+            return {
+              process: spawn(item.command[0], item.command.slice(1), {
+                cwd: root,
+                env: {
+                  ...process.env,
+                  ...item.env,
+                },
+              }),
+              initialization: item.initialization,
+            }
+          },
+        }
+      }
       return {
         broken: new Set<string>(),
+        servers,
         clients,
       }
     },
@@ -76,7 +105,7 @@ export namespace LSP {
     const extension = path.parse(file).ext
     const result: LSPClient.Info[] = []
     for (const server of Object.values(LSPServer)) {
-      if (!server.extensions.includes(extension)) continue
+      if (server.extensions.length && !server.extensions.includes(extension)) continue
       const root = await server.root(file, App.info())
       if (!root) continue
       if (s.broken.has(root + server.id)) continue

packages/opencode/src/lsp/server.ts

@@ -322,4 +322,43 @@ export namespace LSPServer {
       }
     },
   }
+
+  export const CSharp: Info = {
+    id: "csharp",
+    root: NearestRoot([".sln", ".csproj", "global.json"]),
+    extensions: [".cs"],
+    async spawn(_, root) {
+      let bin = Bun.which("csharp-ls", {
+        PATH: process.env["PATH"] + ":" + Global.Path.bin,
+      })
+      if (!bin) {
+        if (!Bun.which("dotnet")) {
+          log.error(".NET SDK is required to install csharp-ls")
+          return
+        }
+
+        log.info("installing csharp-ls via dotnet tool")
+        const proc = Bun.spawn({
+          cmd: ["dotnet", "tool", "install", "csharp-ls", "--tool-path", Global.Path.bin],
+          stdout: "pipe",
+          stderr: "pipe",
+          stdin: "pipe",
+        })
+        const exit = await proc.exited
+        if (exit !== 0) {
+          log.error("Failed to install csharp-ls")
+          return
+        }
+
+        bin = path.join(Global.Path.bin, "csharp-ls" + (process.platform === "win32" ? ".exe" : ""))
+        log.info(`installed csharp-ls`, { bin })
+      }
+
+      return {
+        process: spawn(bin, {
+          cwd: root,
+        }),
+      }
+    },
+  }
 }

packages/opencode/src/mcp/index.ts

@@ -1,5 +1,7 @@
 import { experimental_createMCPClient, type Tool } from "ai"
-import { Experimental_StdioMCPTransport } from "ai/mcp-stdio"
+import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
+import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js"
+import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"
 import { App } from "../app/app"
 import { Config } from "../config/config"
 import { Log } from "../util/log"
@@ -32,14 +34,28 @@ export namespace MCP {
         }
         log.info("found", { key, type: mcp.type })
         if (mcp.type === "remote") {
-          const client = await experimental_createMCPClient({
-            name: key,
-            transport: {
-              type: "sse",
-              url: mcp.url,
-            },
-          }).catch(() => {})
-          if (!client) {
+          const transports = [
+            new StreamableHTTPClientTransport(new URL(mcp.url), {
+              requestInit: {
+                headers: mcp.headers,
+              },
+            }),
+            new SSEClientTransport(new URL(mcp.url), {
+              requestInit: {
+                headers: mcp.headers,
+              },
+            }),
+          ]
+          for (const transport of transports) {
+            const client = await experimental_createMCPClient({
+              name: key,
+              transport,
+            }).catch(() => {})
+            if (!client) continue
+            clients[key] = client
+            break
+          }
+          if (!clients[key])
             Bus.publish(Session.Event.Error, {
               error: {
                 name: "UnknownError",
@@ -48,16 +64,13 @@ export namespace MCP {
                 },
               },
             })
-            continue
-          }
-          clients[key] = client
         }
 
         if (mcp.type === "local") {
           const [cmd, ...args] = mcp.command
           const client = await experimental_createMCPClient({
             name: key,
-            transport: new Experimental_StdioMCPTransport({
+            transport: new StdioClientTransport({
               stderr: "ignore",
               command: cmd,
               args,
@@ -102,7 +115,8 @@ export namespace MCP {
     const result: Record<string, Tool> = {}
     for (const [clientName, client] of Object.entries(await clients())) {
       for (const [toolName, tool] of Object.entries(await client.tools())) {
-        result[clientName + "_" + toolName] = tool
+        const sanitizedClientName = clientName.replace(/\s+/g, "_")
+        result[sanitizedClientName + "_" + toolName] = tool
       }
     }
     return result

packages/opencode/src/permission/index.ts

@@ -2,6 +2,8 @@ import { App } from "../app/app"
 import { z } from "zod"
 import { Bus } from "../bus"
 import { Log } from "../util/log"
+import { Identifier } from "../id/id"
+import { Plugin } from "../plugin"
 
 export namespace Permission {
   const log = Log.create({ service: "permission" })
@@ -9,7 +11,11 @@ export namespace Permission {
   export const Info = z
     .object({
       id: z.string(),
+      type: z.string(),
+      pattern: z.string().optional(),
       sessionID: z.string(),
+      messageID: z.string(),
+      callID: z.string().optional(),
       title: z.string(),
       metadata: z.record(z.any()),
       time: z.object({
@@ -17,12 +23,16 @@ export namespace Permission {
       }),
     })
     .openapi({
-      ref: "permission.info",
+      ref: "Permission",
     })
   export type Info = z.infer<typeof Info>
 
   export const Event = {
     Updated: Bus.event("permission.updated", Info),
+    Replied: Bus.event(
+      "permission.replied",
+      z.object({ sessionID: z.string(), permissionID: z.string(), response: z.string() }),
+    ),
   }
 
   const state = App.state(
@@ -40,7 +50,7 @@ export namespace Permission {
 
       const approved: {
         [sessionID: string]: {
-          [permissionID: string]: Info
+          [permissionID: string]: boolean
         }
       } = {}
 
@@ -52,76 +62,90 @@ export namespace Permission {
     async (state) => {
       for (const pending of Object.values(state.pending)) {
         for (const item of Object.values(pending)) {
-          item.reject(new RejectedError(item.info.sessionID, item.info.id))
+          item.reject(new RejectedError(item.info.sessionID, item.info.id, item.info.callID))
         }
       }
     },
   )
 
-  export function ask(input: {
-    id: Info["id"]
-    sessionID: Info["sessionID"]
+  export async function ask(input: {
+    type: Info["type"]
     title: Info["title"]
+    pattern?: Info["pattern"]
+    callID?: Info["callID"]
+    sessionID: Info["sessionID"]
+    messageID: Info["messageID"]
     metadata: Info["metadata"]
   }) {
-    return
     const { pending, approved } = state()
     log.info("asking", {
       sessionID: input.sessionID,
-      permissionID: input.id,
+      messageID: input.messageID,
+      toolCallID: input.callID,
     })
-    if (approved[input.sessionID]?.[input.id]) {
-      log.info("previously approved", {
-        sessionID: input.sessionID,
-        permissionID: input.id,
-      })
-      return
-    }
+    if (approved[input.sessionID]?.[input.pattern ?? input.type]) return
     const info: Info = {
-      id: input.id,
+      id: Identifier.ascending("permission"),
+      type: input.type,
       sessionID: input.sessionID,
+      messageID: input.messageID,
+      callID: input.callID,
       title: input.title,
       metadata: input.metadata,
       time: {
         created: Date.now(),
       },
     }
+
+    switch (
+      await Plugin.trigger("permission.ask", info, {
+        status: "ask",
+      }).then((x) => x.status)
+    ) {
+      case "deny":
+        throw new RejectedError(info.sessionID, info.id, info.callID)
+      case "allow":
+        return
+    }
+
     pending[input.sessionID] = pending[input.sessionID] || {}
     return new Promise<void>((resolve, reject) => {
-      pending[input.sessionID][input.id] = {
+      pending[input.sessionID][info.id] = {
         info,
         resolve,
         reject,
       }
-      setTimeout(() => {
-        respond({
-          sessionID: input.sessionID,
-          permissionID: input.id,
-          response: "always",
-        })
-      }, 1000)
       Bus.publish(Event.Updated, info)
     })
   }
 
-  export function respond(input: {
-    sessionID: Info["sessionID"]
-    permissionID: Info["id"]
-    response: "once" | "always" | "reject"
-  }) {
+  export const Response = z.enum(["once", "always", "reject"])
+  export type Response = z.infer<typeof Response>
+
+  export function respond(input: { sessionID: Info["sessionID"]; permissionID: Info["id"]; response: Response }) {
     log.info("response", input)
     const { pending, approved } = state()
     const match = pending[input.sessionID]?.[input.permissionID]
     if (!match) return
     delete pending[input.sessionID][input.permissionID]
     if (input.response === "reject") {
-      match.reject(new RejectedError(input.sessionID, input.permissionID))
+      match.reject(new RejectedError(input.sessionID, input.permissionID, match.info.callID))
       return
     }
     match.resolve()
+    Bus.publish(Event.Replied, {
+      sessionID: input.sessionID,
+      permissionID: input.permissionID,
+      response: input.response,
+    })
     if (input.response === "always") {
       approved[input.sessionID] = approved[input.sessionID] || {}
-      approved[input.sessionID][input.permissionID] = match.info
+      approved[input.sessionID][match.info.pattern ?? match.info.type] = true
+      for (const item of Object.values(pending[input.sessionID])) {
+        if ((item.info.pattern ?? item.info.type) === (match.info.pattern ?? match.info.type)) {
+          respond({ sessionID: item.info.sessionID, permissionID: item.info.id, response: input.response })
+        }
+      }
     }
   }
 
@@ -129,6 +153,7 @@ export namespace Permission {
     constructor(
       public readonly sessionID: string,
       public readonly permissionID: string,
+      public readonly toolCallID?: string,
     ) {
       super(`The user rejected permission to use this functionality`)
     }

packages/opencode/src/plugin/index.ts

@@ -0,0 +1,69 @@
+import type { Hooks, Plugin as PluginInstance } from "@opencode-ai/plugin"
+import { App } from "../app/app"
+import { Config } from "../config/config"
+import { Bus } from "../bus"
+import { Log } from "../util/log"
+import { createOpencodeClient } from "@opencode-ai/sdk"
+import { Server } from "../server/server"
+import { BunProc } from "../bun"
+
+export namespace Plugin {
+  const log = Log.create({ service: "plugin" })
+
+  const state = App.state("plugin", async (app) => {
+    const client = createOpencodeClient({
+      baseUrl: "http://localhost:4096",
+      fetch: async (...args) => Server.app().fetch(...args),
+    })
+    const config = await Config.get()
+    const hooks = []
+    for (let plugin of config.plugin ?? []) {
+      log.info("loading plugin", { path: plugin })
+      if (!plugin.startsWith("file://")) {
+        const [pkg, version] = plugin.split("@")
+        plugin = await BunProc.install(pkg, version ?? "latest")
+      }
+      const mod = await import(plugin)
+      for (const [_name, fn] of Object.entries<PluginInstance>(mod)) {
+        const init = await fn({
+          client,
+          app,
+          $: Bun.$,
+        })
+        hooks.push(init)
+      }
+    }
+
+    return {
+      hooks,
+    }
+  })
+
+  export async function trigger<
+    Name extends keyof Required<Hooks>,
+    Input = Parameters<Required<Hooks>[Name]>[0],
+    Output = Parameters<Required<Hooks>[Name]>[1],
+  >(name: Name, input: Input, output: Output): Promise<Output> {
+    if (!name) return output
+    for (const hook of await state().then((x) => x.hooks)) {
+      const fn = hook[name]
+      if (!fn) continue
+      // @ts-expect-error if you feel adventurous, please fix the typing, make sure to bump the try-counter if you
+      // give up.
+      // try-counter: 2
+      await fn(input, output)
+    }
+    return output
+  }
+
+  export function init() {
+    Bus.subscribeAll(async (input) => {
+      const hooks = await state().then((x) => x.hooks)
+      for (const hook of hooks) {
+        hook["event"]?.({
+          event: input,
+        })
+      }
+    })
+  }
+}

packages/opencode/src/provider/models.ts

@@ -3,6 +3,7 @@ import { Log } from "../util/log"
 import path from "path"
 import { z } from "zod"
 import { data } from "./models-macro" with { type: "macro" }
+import { Installation } from "../installation"
 
 export namespace ModelsDev {
   const log = Log.create({ service: "models.dev" })
@@ -50,21 +51,30 @@ export namespace ModelsDev {
   export type Provider = z.infer<typeof Provider>
 
   export async function get() {
+    refresh()
     const file = Bun.file(filepath)
     const result = await file.json().catch(() => {})
-    if (result) {
-      refresh()
-      return result as Record<string, Provider>
-    }
-    refresh()
+    if (result) return result as Record<string, Provider>
     const json = await data()
     return JSON.parse(json) as Record<string, Provider>
   }
 
-  async function refresh() {
+  export async function refresh() {
     const file = Bun.file(filepath)
-    log.info("refreshing")
-    const result = await fetch("https://models.dev/api.json").catch(() => {})
-    if (result && result.ok) await Bun.write(file, result)
+    log.info("refreshing", {
+      file,
+    })
+    const result = await fetch("https://models.dev/api.json", {
+      headers: {
+        "User-Agent": Installation.USER_AGENT,
+      },
+    }).catch((e) => {
+      log.error("Failed to fetch models.dev", {
+        error: e,
+      })
+    })
+    if (result && result.ok) await Bun.write(file, await result.text())
   }
 }
+
+setInterval(() => ModelsDev.refresh(), 60 * 1000 * 60).unref()

packages/opencode/src/provider/provider.ts

@@ -5,23 +5,11 @@ import { mergeDeep, sortBy } from "remeda"
 import { NoSuchModelError, type LanguageModel, type Provider as SDK } from "ai"
 import { Log } from "../util/log"
 import { BunProc } from "../bun"
-import { BashTool } from "../tool/bash"
-import { EditTool } from "../tool/edit"
-import { WebFetchTool } from "../tool/webfetch"
-import { GlobTool } from "../tool/glob"
-import { GrepTool } from "../tool/grep"
-import { ListTool } from "../tool/ls"
-import { PatchTool } from "../tool/patch"
-import { ReadTool } from "../tool/read"
-import type { Tool } from "../tool/tool"
-import { WriteTool } from "../tool/write"
-import { TodoReadTool, TodoWriteTool } from "../tool/todo"
 import { AuthAnthropic } from "../auth/anthropic"
 import { AuthCopilot } from "../auth/copilot"
 import { ModelsDev } from "./models"
 import { NamedError } from "../util/error"
 import { Auth } from "../auth"
-import { TaskTool } from "../tool/task"
 
 export namespace Provider {
   const log = Log.create({ service: "provider" })
@@ -138,8 +126,18 @@ export namespace Provider {
         options: {},
       }
     },
+    azure: async () => {
+      return {
+        autoload: false,
+        async getModel(sdk: any, modelID: string) {
+          return sdk.responses(modelID)
+        },
+        options: {},
+      }
+    },
     "amazon-bedrock": async () => {
-      if (!process.env["AWS_PROFILE"] && !process.env["AWS_ACCESS_KEY_ID"]) return { autoload: false }
+      if (!process.env["AWS_PROFILE"] && !process.env["AWS_ACCESS_KEY_ID"] && !process.env["AWS_BEARER_TOKEN_BEDROCK"])
+        return { autoload: false }
 
       const region = process.env["AWS_REGION"] ?? "us-east-1"
 
@@ -205,6 +203,17 @@ export namespace Provider {
         },
       }
     },
+    vercel: async () => {
+      return {
+        autoload: false,
+        options: {
+          headers: {
+            "http-referer": "https://opencode.ai/",
+            "x-title": "opencode",
+          },
+        },
+      }
+    },
   }
 
   const state = App.state("provider", async () => {
@@ -271,14 +280,20 @@ export namespace Provider {
           reasoning: model.reasoning ?? existing?.reasoning ?? false,
           temperature: model.temperature ?? existing?.temperature ?? false,
           tool_call: model.tool_call ?? existing?.tool_call ?? true,
-          cost: {
-            ...existing?.cost,
-            ...model.cost,
-            input: 0,
-            output: 0,
-            cache_read: 0,
-            cache_write: 0,
-          },
+          cost:
+            !model.cost && !existing?.cost
+              ? {
+                  input: 0,
+                  output: 0,
+                  cache_read: 0,
+                  cache_write: 0,
+                }
+              : {
+                  cache_read: 0,
+                  cache_write: 0,
+                  ...existing?.cost,
+                  ...model.cost,
+                },
           options: {
             ...existing?.options,
             ...model.options,
@@ -360,7 +375,10 @@ export namespace Provider {
       const pkg = provider.npm ?? provider.id
       const mod = await import(await BunProc.install(pkg, "beta"))
       const fn = mod[Object.keys(mod).find((key) => key.startsWith("create"))!]
-      const loaded = fn(s.providers[provider.id]?.options)
+      const loaded = fn({
+        name: provider.id,
+        ...s.providers[provider.id]?.options,
+      })
       s.sdk.set(provider.id, loaded)
       return loaded as SDK
     })().catch((e) => {
@@ -368,6 +386,10 @@ export namespace Provider {
     })
   }
 
+  export async function getProvider(providerID: string) {
+    return state().then((s) => s.providers[providerID])
+  }
+
   export async function getModel(providerID: string, modelID: string) {
     const key = `${providerID}/${modelID}`
     const s = await state()
@@ -408,6 +430,24 @@ export namespace Provider {
     }
   }
 
+  export async function getSmallModel(providerID: string) {
+    const cfg = await Config.get()
+
+    if (cfg.small_model) {
+      const parsed = parseModel(cfg.small_model)
+      return getModel(parsed.providerID, parsed.modelID)
+    }
+
+    const provider = await state().then((state) => state.providers[providerID])
+    if (!provider) return
+    const priority = ["3-5-haiku", "3.5-haiku", "gemini-2.5-flash"]
+    for (const item of priority) {
+      for (const model of Object.keys(provider.info.models)) {
+        if (model.includes(item)) return getModel(providerID, model)
+      }
+    }
+  }
+
   const priority = ["gemini-2.5-pro-preview", "codex-mini", "claude-sonnet-4"]
   export function sort(models: ModelsDev.Model[]) {
     return sortBy(
@@ -441,82 +481,6 @@ export namespace Provider {
     }
   }
 
-  const TOOLS = [
-    BashTool,
-    EditTool,
-    WebFetchTool,
-    GlobTool,
-    GrepTool,
-    ListTool,
-    // LspDiagnosticTool,
-    // LspHoverTool,
-    PatchTool,
-    ReadTool,
-    // MultiEditTool,
-    WriteTool,
-    TodoWriteTool,
-    TodoReadTool,
-    TaskTool,
-  ]
-
-  const TOOL_MAPPING: Record<string, Tool.Info[]> = {
-    anthropic: TOOLS.filter((t) => t.id !== "patch"),
-    openai: TOOLS.map((t) => ({
-      ...t,
-      parameters: optionalToNullable(t.parameters),
-    })),
-    azure: TOOLS.map((t) => ({
-      ...t,
-      parameters: optionalToNullable(t.parameters),
-    })),
-    google: TOOLS,
-  }
-
-  export async function tools(providerID: string) {
-    /*
-    const cfg = await Config.get()
-    if (cfg.tool?.provider?.[providerID])
-      return cfg.tool.provider[providerID].map(
-        (id) => TOOLS.find((t) => t.id === id)!,
-      )
-        */
-    return TOOL_MAPPING[providerID] ?? TOOLS
-  }
-
-  function optionalToNullable(schema: z.ZodTypeAny): z.ZodTypeAny {
-    if (schema instanceof z.ZodObject) {
-      const shape = schema.shape
-      const newShape: Record<string, z.ZodTypeAny> = {}
-
-      for (const [key, value] of Object.entries(shape)) {
-        const zodValue = value as z.ZodTypeAny
-        if (zodValue instanceof z.ZodOptional) {
-          newShape[key] = zodValue.unwrap().nullable()
-        } else {
-          newShape[key] = optionalToNullable(zodValue)
-        }
-      }
-
-      return z.object(newShape)
-    }
-
-    if (schema instanceof z.ZodArray) {
-      return z.array(optionalToNullable(schema.element))
-    }
-
-    if (schema instanceof z.ZodUnion) {
-      return z.union(
-        schema.options.map((option: z.ZodTypeAny) => optionalToNullable(option)) as [
-          z.ZodTypeAny,
-          z.ZodTypeAny,
-          ...z.ZodTypeAny[],
-        ],
-      )
-    }
-
-    return schema
-  }
-
   export const ModelNotFoundError = NamedError.create(
     "ProviderModelNotFoundError",
     z.object({

packages/opencode/src/provider/transform.ts

@@ -2,36 +2,83 @@ import type { ModelMessage } from "ai"
 import { unique } from "remeda"
 
 export namespace ProviderTransform {
-  export function message(msgs: ModelMessage[], providerID: string, modelID: string) {
-    if (providerID === "anthropic" || modelID.includes("anthropic")) {
-      const system = msgs.filter((msg) => msg.role === "system").slice(0, 2)
-      const final = msgs.filter((msg) => msg.role !== "system").slice(-2)
+  function normalizeToolCallIds(msgs: ModelMessage[]): ModelMessage[] {
+    return msgs.map((msg) => {
+      if ((msg.role === "assistant" || msg.role === "tool") && Array.isArray(msg.content)) {
+        msg.content = msg.content.map((part) => {
+          if ((part.type === "tool-call" || part.type === "tool-result") && "toolCallId" in part) {
+            return {
+              ...part,
+              toolCallId: part.toolCallId.replace(/[^a-zA-Z0-9_-]/g, "_"),
+            }
+          }
+          return part
+        })
+      }
+      return msg
+    })
+  }
 
-      for (const msg of unique([...system, ...final])) {
-        msg.providerOptions = {
-          ...msg.providerOptions,
-          anthropic: {
-            cacheControl: { type: "ephemeral" },
-          },
-          openaiCompatible: {
-            cache_control: { type: "ephemeral" },
-          },
+  function applyCaching(msgs: ModelMessage[], providerID: string): ModelMessage[] {
+    const system = msgs.filter((msg) => msg.role === "system").slice(0, 2)
+    const final = msgs.filter((msg) => msg.role !== "system").slice(-2)
+
+    const providerOptions = {
+      anthropic: {
+        cacheControl: { type: "ephemeral" },
+      },
+      openrouter: {
+        cache_control: { type: "ephemeral" },
+      },
+      bedrock: {
+        cachePoint: { type: "ephemeral" },
+      },
+      openaiCompatible: {
+        cache_control: { type: "ephemeral" },
+      },
+    }
+
+    for (const msg of unique([...system, ...final])) {
+      const shouldUseContentOptions = providerID !== "anthropic" && Array.isArray(msg.content) && msg.content.length > 0
+
+      if (shouldUseContentOptions) {
+        const lastContent = msg.content[msg.content.length - 1]
+        if (lastContent && typeof lastContent === "object") {
+          lastContent.providerOptions = {
+            ...lastContent.providerOptions,
+            ...providerOptions,
+          }
+          continue
         }
       }
-    }
-    if (providerID === "amazon-bedrock" || modelID.includes("anthropic")) {
-      const system = msgs.filter((msg) => msg.role === "system").slice(0, 2)
-      const final = msgs.filter((msg) => msg.role !== "system").slice(-2)
 
-      for (const msg of unique([...system, ...final])) {
-        msg.providerOptions = {
-          ...msg.providerOptions,
-          bedrock: {
-            cachePoint: { type: "ephemeral" },
-          },
-        }
+      msg.providerOptions = {
+        ...msg.providerOptions,
+        ...providerOptions,
       }
     }
+
     return msgs
   }
+
+  export function message(msgs: ModelMessage[], providerID: string, modelID: string) {
+    if (modelID.includes("claude")) {
+      msgs = normalizeToolCallIds(msgs)
+    }
+    if (providerID === "anthropic" || modelID.includes("anthropic") || modelID.includes("claude")) {
+      msgs = applyCaching(msgs, providerID)
+    }
+
+    return msgs
+  }
+
+  export function temperature(_providerID: string, modelID: string) {
+    if (modelID.toLowerCase().includes("qwen")) return 0.55
+    return 0
+  }
+
+  export function topP(_providerID: string, modelID: string) {
+    if (modelID.toLowerCase().includes("qwen")) return 1
+    return undefined
+  }
 }

packages/opencode/src/server/server.ts

@@ -17,6 +17,9 @@ import { File } from "../file"
 import { LSP } from "../lsp"
 import { MessageV2 } from "../session/message-v2"
 import { Mode } from "../session/mode"
+import { callTui, TuiRoute } from "./tui"
+import { Permission } from "../permission"
+import { lazy } from "../util/lazy"
 
 const ERRORS = {
   400: {
@@ -42,7 +45,11 @@ export namespace Server {
 
   export type Routes = ReturnType<typeof app>
 
-  function app() {
+  export const Event = {
+    Connected: Bus.event("server.connected", z.object({})),
+  }
+
+  export const app = lazy(() => {
     const app = new Hono()
 
     const result = app
@@ -57,15 +64,20 @@ export namespace Server {
         })
       })
       .use(async (c, next) => {
-        log.info("request", {
-          method: c.req.method,
-          path: c.req.path,
-        })
+        const skipLogging = c.req.path === "/log"
+        if (!skipLogging) {
+          log.info("request", {
+            method: c.req.method,
+            path: c.req.path,
+          })
+        }
         const start = Date.now()
         await next()
-        log.info("response", {
-          duration: Date.now() - start,
-        })
+        if (!skipLogging) {
+          log.info("response", {
+            duration: Date.now() - start,
+          })
+        }
       })
       .get(
         "/doc",
@@ -84,6 +96,7 @@ export namespace Server {
         "/event",
         describeRoute({
           description: "Get events",
+          operationId: "event.subscribe",
           responses: {
             200: {
               description: "Event stream",
@@ -103,7 +116,10 @@ export namespace Server {
           log.info("event connected")
           return streamSSE(c, async (stream) => {
             stream.writeSSE({
-              data: JSON.stringify({}),
+              data: JSON.stringify({
+                type: "server.connected",
+                properties: {},
+              }),
             })
             const unsub = Bus.subscribeAll(async (event) => {
               await stream.writeSSE({
@@ -124,6 +140,7 @@ export namespace Server {
         "/app",
         describeRoute({
           description: "Get app info",
+          operationId: "app.get",
           responses: {
             200: {
               description: "200",
@@ -143,6 +160,7 @@ export namespace Server {
         "/app/init",
         describeRoute({
           description: "Initialize the app",
+          operationId: "app.init",
           responses: {
             200: {
               description: "Initialize the app",
@@ -163,6 +181,7 @@ export namespace Server {
         "/config",
         describeRoute({
           description: "Get config info",
+          operationId: "config.get",
           responses: {
             200: {
               description: "Get config info",
@@ -182,6 +201,7 @@ export namespace Server {
         "/session",
         describeRoute({
           description: "List all sessions",
+          operationId: "session.list",
           responses: {
             200: {
               description: "List of sessions",
@@ -195,6 +215,7 @@ export namespace Server {
         }),
         async (c) => {
           const sessions = await Array.fromAsync(Session.list())
+          sessions.sort((a, b) => b.time.updated - a.time.updated)
           return c.json(sessions)
         },
       )
@@ -202,6 +223,7 @@ export namespace Server {
         "/session",
         describeRoute({
           description: "Create a new session",
+          operationId: "session.create",
           responses: {
             ...ERRORS,
             200: {
@@ -223,6 +245,7 @@ export namespace Server {
         "/session/:id",
         describeRoute({
           description: "Delete a session and all its data",
+          operationId: "session.delete",
           responses: {
             200: {
               description: "Successfully deleted session",
@@ -249,6 +272,7 @@ export namespace Server {
         "/session/:id/init",
         describeRoute({
           description: "Analyze the app and create an AGENTS.md file",
+          operationId: "session.init",
           responses: {
             200: {
               description: "200",
@@ -285,6 +309,7 @@ export namespace Server {
         "/session/:id/abort",
         describeRoute({
           description: "Abort a session",
+          operationId: "session.abort",
           responses: {
             200: {
               description: "Aborted session",
@@ -310,6 +335,7 @@ export namespace Server {
         "/session/:id/share",
         describeRoute({
           description: "Share a session",
+          operationId: "session.share",
           responses: {
             200: {
               description: "Successfully shared session",
@@ -338,6 +364,7 @@ export namespace Server {
         "/session/:id/share",
         describeRoute({
           description: "Unshare the session",
+          operationId: "session.unshare",
           responses: {
             200: {
               description: "Successfully unshared session",
@@ -366,6 +393,7 @@ export namespace Server {
         "/session/:id/summarize",
         describeRoute({
           description: "Summarize the session",
+          operationId: "session.summarize",
           responses: {
             200: {
               description: "Summarized session",
@@ -401,6 +429,7 @@ export namespace Server {
         "/session/:id/message",
         describeRoute({
           description: "List messages for a session",
+          operationId: "session.messages",
           responses: {
             200: {
               description: "List of messages",
@@ -430,10 +459,45 @@ export namespace Server {
           return c.json(messages)
         },
       )
+      .get(
+        "/session/:id/message/:messageID",
+        describeRoute({
+          description: "Get a message from a session",
+          operationId: "session.message",
+          responses: {
+            200: {
+              description: "Message",
+              content: {
+                "application/json": {
+                  schema: resolver(
+                    z.object({
+                      info: MessageV2.Info,
+                      parts: MessageV2.Part.array(),
+                    }),
+                  ),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "param",
+          z.object({
+            id: z.string().openapi({ description: "Session ID" }),
+            messageID: z.string().openapi({ description: "Message ID" }),
+          }),
+        ),
+        async (c) => {
+          const params = c.req.valid("param")
+          const message = await Session.getMessage(params.id, params.messageID)
+          return c.json(message)
+        },
+      )
       .post(
         "/session/:id/message",
         describeRoute({
           description: "Create and send a new message to a session",
+          operationId: "session.chat",
           responses: {
             200: {
               description: "Created message",
@@ -451,16 +515,7 @@ export namespace Server {
             id: z.string().openapi({ description: "Session ID" }),
           }),
         ),
-        zValidator(
-          "json",
-          z.object({
-            messageID: z.string(),
-            providerID: z.string(),
-            modelID: z.string(),
-            mode: z.string(),
-            parts: z.union([MessageV2.FilePart, MessageV2.TextPart]).array(),
-          }),
-        ),
+        zValidator("json", Session.ChatInput.omit({ sessionID: true })),
         async (c) => {
           const sessionID = c.req.valid("param").id
           const body = c.req.valid("json")
@@ -468,10 +523,100 @@ export namespace Server {
           return c.json(msg)
         },
       )
+      .post(
+        "/session/:id/revert",
+        describeRoute({
+          description: "Revert a message",
+          operationId: "session.revert",
+          responses: {
+            200: {
+              description: "Updated session",
+              content: {
+                "application/json": {
+                  schema: resolver(Session.Info),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "param",
+          z.object({
+            id: z.string(),
+          }),
+        ),
+        zValidator("json", Session.RevertInput.omit({ sessionID: true })),
+        async (c) => {
+          const id = c.req.valid("param").id
+          log.info("revert", c.req.valid("json"))
+          const session = await Session.revert({ sessionID: id, ...c.req.valid("json") })
+          return c.json(session)
+        },
+      )
+      .post(
+        "/session/:id/unrevert",
+        describeRoute({
+          description: "Restore all reverted messages",
+          operationId: "session.unrevert",
+          responses: {
+            200: {
+              description: "Updated session",
+              content: {
+                "application/json": {
+                  schema: resolver(Session.Info),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "param",
+          z.object({
+            id: z.string(),
+          }),
+        ),
+        async (c) => {
+          const id = c.req.valid("param").id
+          const session = await Session.unrevert({ sessionID: id })
+          return c.json(session)
+        },
+      )
+      .post(
+        "/session/:id/permissions/:permissionID",
+        describeRoute({
+          description: "Respond to a permission request",
+          responses: {
+            200: {
+              description: "Permission processed successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "param",
+          z.object({
+            id: z.string(),
+            permissionID: z.string(),
+          }),
+        ),
+        zValidator("json", z.object({ response: Permission.Response })),
+        async (c) => {
+          const params = c.req.valid("param")
+          const id = params.id
+          const permissionID = params.permissionID
+          Permission.respond({ sessionID: id, permissionID, response: c.req.valid("json").response })
+          return c.json(true)
+        },
+      )
       .get(
         "/config/providers",
         describeRoute({
           description: "List all providers",
+          operationId: "config.providers",
           responses: {
             200: {
               description: "List of providers",
@@ -500,6 +645,7 @@ export namespace Server {
         "/find",
         describeRoute({
           description: "Find text in files",
+          operationId: "find.text",
           responses: {
             200: {
               description: "Matches",
@@ -532,6 +678,7 @@ export namespace Server {
         "/find/file",
         describeRoute({
           description: "Find files",
+          operationId: "find.files",
           responses: {
             200: {
               description: "File paths",
@@ -564,6 +711,7 @@ export namespace Server {
         "/find/symbol",
         describeRoute({
           description: "Find workspace symbols",
+          operationId: "find.symbols",
           responses: {
             200: {
               description: "Symbols",
@@ -591,6 +739,7 @@ export namespace Server {
         "/file",
         describeRoute({
           description: "Read a file",
+          operationId: "file.read",
           responses: {
             200: {
               description: "File content",
@@ -627,6 +776,7 @@ export namespace Server {
         "/file/status",
         describeRoute({
           description: "Get file status",
+          operationId: "file.status",
           responses: {
             200: {
               description: "File status",
@@ -647,6 +797,7 @@ export namespace Server {
         "/log",
         describeRoute({
           description: "Write a log entry to the server logs",
+          operationId: "app.log",
           responses: {
             200: {
               description: "Log entry written successfully",
@@ -696,6 +847,7 @@ export namespace Server {
         "/mode",
         describeRoute({
           description: "List all modes",
+          operationId: "app.modes",
           responses: {
             200: {
               description: "List of modes",
@@ -712,9 +864,166 @@ export namespace Server {
           return c.json(modes)
         },
       )
+      .post(
+        "/tui/append-prompt",
+        describeRoute({
+          description: "Append prompt to the TUI",
+          operationId: "tui.appendPrompt",
+          responses: {
+            200: {
+              description: "Prompt processed successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "json",
+          z.object({
+            text: z.string(),
+          }),
+        ),
+        async (c) => c.json(await callTui(c)),
+      )
+      .post(
+        "/tui/open-help",
+        describeRoute({
+          description: "Open the help dialog",
+          operationId: "tui.openHelp",
+          responses: {
+            200: {
+              description: "Help dialog opened successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => c.json(await callTui(c)),
+      )
+      .post(
+        "/tui/open-sessions",
+        describeRoute({
+          description: "Open the session dialog",
+          operationId: "tui.openSessions",
+          responses: {
+            200: {
+              description: "Session dialog opened successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => c.json(await callTui(c)),
+      )
+      .post(
+        "/tui/open-themes",
+        describeRoute({
+          description: "Open the theme dialog",
+          operationId: "tui.openThemes",
+          responses: {
+            200: {
+              description: "Theme dialog opened successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => c.json(await callTui(c)),
+      )
+      .post(
+        "/tui/open-models",
+        describeRoute({
+          description: "Open the model dialog",
+          operationId: "tui.openModels",
+          responses: {
+            200: {
+              description: "Model dialog opened successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => c.json(await callTui(c)),
+      )
+      .post(
+        "/tui/submit-prompt",
+        describeRoute({
+          description: "Submit the prompt",
+          operationId: "tui.submitPrompt",
+          responses: {
+            200: {
+              description: "Prompt submitted successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => c.json(await callTui(c)),
+      )
+      .post(
+        "/tui/clear-prompt",
+        describeRoute({
+          description: "Clear the prompt",
+          operationId: "tui.clearPrompt",
+          responses: {
+            200: {
+              description: "Prompt cleared successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => c.json(await callTui(c)),
+      )
+      .post(
+        "/tui/execute-command",
+        describeRoute({
+          description: "Execute a TUI command (e.g. switch_mode)",
+          operationId: "tui.executeCommand",
+          responses: {
+            200: {
+              description: "Command executed successfully",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "json",
+          z.object({
+            command: z.string(),
+          }),
+        ),
+        async (c) => c.json(await callTui(c)),
+      )
+      .route("/tui/control", TuiRoute)
 
     return result
-  }
+  })
 
   export async function openapi() {
     const a = app()

packages/opencode/src/server/tui.ts

@@ -0,0 +1,30 @@
+import { Hono, type Context } from "hono"
+import { AsyncQueue } from "../util/queue"
+
+interface Request {
+  path: string
+  body: any
+}
+
+const request = new AsyncQueue<Request>()
+const response = new AsyncQueue<any>()
+
+export async function callTui(ctx: Context) {
+  const body = await ctx.req.json()
+  request.push({
+    path: ctx.req.path,
+    body,
+  })
+  return response.next()
+}
+
+export const TuiRoute = new Hono()
+  .get("/next", async (c) => {
+    const req = await request.next()
+    return c.json(req)
+  })
+  .post("/response", async (c) => {
+    const body = await c.req.json()
+    response.push(body)
+    return c.json(true)
+  })

packages/opencode/src/session/index.ts

@@ -39,6 +39,9 @@ import { MessageV2 } from "./message-v2"
 import { Mode } from "./mode"
 import { LSP } from "../lsp"
 import { ReadTool } from "../tool/read"
+import { mergeDeep, pipe, splitWhen } from "remeda"
+import { ToolRegistry } from "../tool/registry"
+import { Plugin } from "../plugin"
 
 export namespace Session {
   const log = Log.create({ service: "session" })
@@ -63,8 +66,9 @@ export namespace Session {
       revert: z
         .object({
           messageID: z.string(),
-          part: z.number(),
+          partID: z.string().optional(),
           snapshot: z.string().optional(),
+          diff: z.string().optional(),
         })
         .optional(),
     })
@@ -117,11 +121,24 @@ export namespace Session {
       const sessions = new Map<string, Info>()
       const messages = new Map<string, MessageV2.Info[]>()
       const pending = new Map<string, AbortController>()
+      const autoCompacting = new Map<string, boolean>()
+      const queued = new Map<
+        string,
+        {
+          input: ChatInput
+          message: MessageV2.User
+          parts: MessageV2.Part[]
+          processed: boolean
+          callback: (input: { info: MessageV2.Assistant; parts: MessageV2.Part[] }) => void
+        }[]
+      >()
 
       return {
         sessions,
         messages,
         pending,
+        autoCompacting,
+        queued,
       }
     },
     async (state) => {
@@ -234,7 +251,7 @@ export namespace Session {
       const read = await Storage.readJSON<MessageV2.Info>(p)
       result.push({
         info: read,
-        parts: await parts(sessionID, read.id),
+        parts: await getParts(sessionID, read.id),
       })
     }
     result.sort((a, b) => (a.info.id > b.info.id ? 1 : -1))
@@ -242,10 +259,13 @@ export namespace Session {
   }
 
   export async function getMessage(sessionID: string, messageID: string) {
-    return Storage.readJSON<MessageV2.Info>("session/message/" + sessionID + "/" + messageID)
+    return {
+      info: await Storage.readJSON<MessageV2.Info>("session/message/" + sessionID + "/" + messageID),
+      parts: await getParts(sessionID, messageID),
+    }
   }
 
-  export async function parts(sessionID: string, messageID: string) {
+  export async function getParts(sessionID: string, messageID: string) {
     const result = [] as MessageV2.Part[]
     for (const item of await Storage.list("session/part/" + sessionID + "/" + messageID)) {
       const read = await Storage.readJSON<MessageV2.Part>(item)
@@ -276,6 +296,9 @@ export namespace Session {
   export function abort(sessionID: string) {
     const controller = state().pending.get(sessionID)
     if (!controller) return false
+    log.info("aborting", {
+      sessionID,
+    })
     controller.abort()
     state().pending.delete(sessionID)
     return true
@@ -318,72 +341,80 @@ export namespace Session {
     return part
   }
 
-  export async function chat(input: {
-    sessionID: string
-    messageID: string
-    providerID: string
-    modelID: string
-    mode?: string
-    parts: (MessageV2.TextPart | MessageV2.FilePart)[]
-  }) {
+  export const ChatInput = z.object({
+    sessionID: Identifier.schema("session"),
+    messageID: Identifier.schema("message").optional(),
+    providerID: z.string(),
+    modelID: z.string(),
+    mode: z.string().optional(),
+    system: z.string().optional(),
+    tools: z.record(z.boolean()).optional(),
+    parts: z.array(
+      z.discriminatedUnion("type", [
+        MessageV2.TextPart.omit({
+          messageID: true,
+          sessionID: true,
+        })
+          .partial({
+            id: true,
+          })
+          .openapi({
+            ref: "TextPartInput",
+          }),
+        MessageV2.FilePart.omit({
+          messageID: true,
+          sessionID: true,
+        })
+          .partial({
+            id: true,
+          })
+          .openapi({
+            ref: "FilePartInput",
+          }),
+      ]),
+    ),
+  })
+  export type ChatInput = z.infer<typeof ChatInput>
+
+  export async function chat(
+    input: z.infer<typeof ChatInput>,
+  ): Promise<{ info: MessageV2.Assistant; parts: MessageV2.Part[] }> {
     const l = log.clone().tag("session", input.sessionID)
     l.info("chatting")
 
-    const model = await Provider.getModel(input.providerID, input.modelID)
-    let msgs = await messages(input.sessionID)
+    const inputMode = input.mode ?? "build"
+
+    // Process revert cleanup first, before creating new messages
     const session = await get(input.sessionID)
-
     if (session.revert) {
-      const trimmed = []
-      for (const msg of msgs) {
-        if (
-          msg.info.id > session.revert.messageID ||
-          (msg.info.id === session.revert.messageID && session.revert.part === 0)
-        ) {
-          await Storage.remove("session/message/" + input.sessionID + "/" + msg.info.id)
-          await Bus.publish(MessageV2.Event.Removed, {
-            sessionID: input.sessionID,
-            messageID: msg.info.id,
-          })
-          continue
-        }
-
-        if (msg.info.id === session.revert.messageID) {
-          if (session.revert.part === 0) break
-          msg.parts = msg.parts.slice(0, session.revert.part)
-        }
-        trimmed.push(msg)
+      let msgs = await messages(input.sessionID)
+      const messageID = session.revert.messageID
+      const [preserve, remove] = splitWhen(msgs, (x) => x.info.id === messageID)
+      msgs = preserve
+      for (const msg of remove) {
+        await Storage.remove(`session/message/${input.sessionID}/${msg.info.id}`)
+        await Bus.publish(MessageV2.Event.Removed, { sessionID: input.sessionID, messageID: msg.info.id })
+      }
+      const last = preserve.at(-1)
+      if (session.revert.partID && last) {
+        const partID = session.revert.partID
+        const [preserveParts, removeParts] = splitWhen(last.parts, (x) => x.id === partID)
+        last.parts = preserveParts
+        for (const part of removeParts) {
+          await Storage.remove(`session/part/${input.sessionID}/${last.info.id}/${part.id}`)
+          await Bus.publish(MessageV2.Event.PartRemoved, {
+            sessionID: input.sessionID,
+            messageID: last.info.id,
+            partID: part.id,
+          })
+        }
       }
-      msgs = trimmed
       await update(input.sessionID, (draft) => {
         draft.revert = undefined
       })
     }
-
-    const previous = msgs.filter((x) => x.info.role === "assistant").at(-1)?.info as MessageV2.Assistant
-    const outputLimit = Math.min(model.info.limit.output, OUTPUT_TOKEN_MAX) || OUTPUT_TOKEN_MAX
-
-    // auto summarize if too long
-    if (previous && previous.tokens) {
-      const tokens =
-        previous.tokens.input + previous.tokens.cache.read + previous.tokens.cache.write + previous.tokens.output
-      if (model.info.limit.context && tokens > Math.max((model.info.limit.context - outputLimit) * 0.9, 0)) {
-        await summarize({
-          sessionID: input.sessionID,
-          providerID: input.providerID,
-          modelID: input.modelID,
-        })
-        return chat(input)
-      }
-    }
-
-    using abort = lock(input.sessionID)
-
-    const lastSummary = msgs.findLast((msg) => msg.info.role === "assistant" && msg.info.summary === true)
-    if (lastSummary) msgs = msgs.filter((msg) => msg.info.id >= lastSummary.info.id)
-
     const userMsg: MessageV2.Info = {
-      id: input.messageID,
+      id: input.messageID ?? Identifier.ascending("message"),
       role: "user",
       sessionID: input.sessionID,
       time: {
@@ -397,12 +428,38 @@ export namespace Session {
         if (part.type === "file") {
           const url = new URL(part.url)
           switch (url.protocol) {
+            case "data:":
+              if (part.mime === "text/plain") {
+                return [
+                  {
+                    id: Identifier.ascending("part"),
+                    messageID: userMsg.id,
+                    sessionID: input.sessionID,
+                    type: "text",
+                    synthetic: true,
+                    text: `Called the Read tool with the following input: ${JSON.stringify({ filePath: part.filename })}`,
+                  },
+                  {
+                    id: Identifier.ascending("part"),
+                    messageID: userMsg.id,
+                    sessionID: input.sessionID,
+                    type: "text",
+                    synthetic: true,
+                    text: Buffer.from(part.url, "base64url").toString(),
+                  },
+                  {
+                    ...part,
+                    id: part.id ?? Identifier.ascending("part"),
+                    messageID: userMsg.id,
+                    sessionID: input.sessionID,
+                  },
+                ]
+              }
+              break
             case "file:":
               // have to normalize, symbol search returns absolute paths
               // Decode the pathname since URL constructor doesn't automatically decode it
-              const pathname = decodeURIComponent(url.pathname)
-              const relativePath = pathname.replace(app.path.cwd, ".")
-              const filePath = path.join(app.path.cwd, relativePath)
+              const filePath = decodeURIComponent(url.pathname)
 
               if (part.mime === "text/plain") {
                 let offset: number | undefined = undefined
@@ -440,12 +497,14 @@ export namespace Session {
                   }
                 }
                 const args = { filePath, offset, limit }
-                const result = await ReadTool.execute(args, {
-                  sessionID: input.sessionID,
-                  abort: abort.signal,
-                  messageID: userMsg.id,
-                  metadata: async () => {},
-                })
+                const result = await ReadTool.init().then((t) =>
+                  t.execute(args, {
+                    sessionID: input.sessionID,
+                    abort: new AbortController().signal,
+                    messageID: userMsg.id,
+                    metadata: async () => {},
+                  }),
+                )
                 return [
                   {
                     id: Identifier.ascending("part"),
@@ -463,6 +522,12 @@ export namespace Session {
                     synthetic: true,
                     text: result.output,
                   },
+                  {
+                    ...part,
+                    id: part.id ?? Identifier.ascending("part"),
+                    messageID: userMsg.id,
+                    sessionID: input.sessionID,
+                  },
                 ]
               }
 
@@ -474,26 +539,33 @@ export namespace Session {
                   messageID: userMsg.id,
                   sessionID: input.sessionID,
                   type: "text",
-                  text: `Called the Read tool with the following input: {\"filePath\":\"${pathname}\"}`,
+                  text: `Called the Read tool with the following input: {\"filePath\":\"${filePath}\"}`,
                   synthetic: true,
                 },
                 {
-                  id: Identifier.ascending("part"),
+                  id: part.id ?? Identifier.ascending("part"),
                   messageID: userMsg.id,
                   sessionID: input.sessionID,
                   type: "file",
                   url: `data:${part.mime};base64,` + Buffer.from(await file.bytes()).toString("base64"),
                   mime: part.mime,
                   filename: part.filename!,
+                  source: part.source,
                 },
               ]
           }
         }
-        return [part]
+        return [
+          {
+            id: Identifier.ascending("part"),
+            ...part,
+            messageID: userMsg.id,
+            sessionID: input.sessionID,
+          },
+        ]
       }),
     ).then((x) => x.flat())
-
-    if (input.mode === "plan")
+    if (inputMode === "plan")
       userParts.push({
         id: Identifier.ascending("part"),
         messageID: userMsg.id,
@@ -502,11 +574,70 @@ export namespace Session {
         text: PROMPT_PLAN,
         synthetic: true,
       })
+    await Plugin.trigger(
+      "chat.message",
+      {},
+      {
+        message: userMsg,
+        parts: userParts,
+      },
+    )
+    await updateMessage(userMsg)
+    for (const part of userParts) {
+      await updatePart(part)
+    }
 
-    if (msgs.length === 0 && !session.parentID) {
+    // mark session as updated
+    // used for session list sorting (indicates when session was most recently interacted with)
+    await update(input.sessionID, (_draft) => {})
+
+    if (isLocked(input.sessionID)) {
+      return new Promise((resolve) => {
+        const queue = state().queued.get(input.sessionID) ?? []
+        queue.push({
+          input: input,
+          message: userMsg,
+          parts: userParts,
+          processed: false,
+          callback: resolve,
+        })
+        state().queued.set(input.sessionID, queue)
+      })
+    }
+
+    const model = await Provider.getModel(input.providerID, input.modelID)
+    let msgs = await messages(input.sessionID)
+
+    const previous = msgs.filter((x) => x.info.role === "assistant").at(-1)?.info as MessageV2.Assistant
+    const outputLimit = Math.min(model.info.limit.output, OUTPUT_TOKEN_MAX) || OUTPUT_TOKEN_MAX
+
+    // auto summarize if too long
+    if (previous && previous.tokens) {
+      const tokens =
+        previous.tokens.input + previous.tokens.cache.read + previous.tokens.cache.write + previous.tokens.output
+      if (model.info.limit.context && tokens > Math.max((model.info.limit.context - outputLimit) * 0.9, 0)) {
+        state().autoCompacting.set(input.sessionID, true)
+
+        await summarize({
+          sessionID: input.sessionID,
+          providerID: input.providerID,
+          modelID: input.modelID,
+        })
+        return chat(input)
+      }
+    }
+    using abort = lock(input.sessionID)
+
+    const lastSummary = msgs.findLast((msg) => msg.info.role === "assistant" && msg.info.summary === true)
+    if (lastSummary) msgs = msgs.filter((msg) => msg.info.id >= lastSummary.info.id)
+
+    if (msgs.length === 1 && !session.parentID) {
+      const small = (await Provider.getSmallModel(input.providerID)) ?? model
       generateText({
-        maxOutputTokens: input.providerID === "google" ? 1024 : 20,
-        providerOptions: model.info.options,
+        maxOutputTokens: small.info.reasoning ? 1024 : 20,
+        providerOptions: {
+          [input.providerID]: small.info.options,
+        },
         messages: [
           ...SystemPrompt.title(input.providerID).map(
             (x): ModelMessage => ({
@@ -528,24 +659,28 @@ export namespace Session {
             },
           ]),
         ],
-        model: model.language,
+        model: small.language,
       })
         .then((result) => {
           if (result.text)
             return Session.update(input.sessionID, (draft) => {
-              draft.title = result.text
+              const cleaned = result.text.replace(/<think>[\s\S]*?<\/think>\s*/g, "")
+              const title = cleaned.length > 100 ? cleaned.substring(0, 97) + "..." : cleaned
+              draft.title = title.trim()
             })
         })
         .catch(() => {})
     }
-    await updateMessage(userMsg)
-    for (const part of userParts) {
-      await updatePart(part)
-    }
-    msgs.push({ info: userMsg, parts: userParts })
 
-    const mode = await Mode.get(input.mode ?? "build")
-    let system = mode.prompt ? [mode.prompt] : SystemPrompt.provider(input.providerID, input.modelID)
+    const mode = await Mode.get(inputMode)
+    let system = SystemPrompt.header(input.providerID)
+    system.push(
+      ...(() => {
+        if (input.system) return [input.system]
+        if (mode.prompt) return [mode.prompt]
+        return SystemPrompt.provider(input.modelID)
+      })(),
+    )
     system.push(...(await SystemPrompt.environment()))
     system.push(...(await SystemPrompt.custom()))
     // max 2 system prompt messages for caching purposes
@@ -556,6 +691,7 @@ export namespace Session {
       id: Identifier.ascending("message"),
       role: "assistant",
       system,
+      mode: inputMode,
       path: {
         cwd: app.path.cwd,
         root: app.path.root,
@@ -579,18 +715,34 @@ export namespace Session {
 
     const processor = createProcessor(assistantMsg, model.info)
 
-    for (const item of await Provider.tools(input.providerID)) {
-      if (mode.tools[item.id] === false) continue
-      if (session.parentID && item.id === "task") continue
+    const enabledTools = pipe(
+      mode.tools,
+      mergeDeep(ToolRegistry.enabled(input.providerID, input.modelID)),
+      mergeDeep(input.tools ?? {}),
+    )
+    for (const item of await ToolRegistry.tools(input.providerID, input.modelID)) {
+      if (enabledTools[item.id] === false) continue
       tools[item.id] = tool({
         id: item.id as any,
         description: item.description,
         inputSchema: item.parameters as ZodSchema,
         async execute(args, options) {
+          await Plugin.trigger(
+            "tool.execute.before",
+            {
+              tool: item.id,
+              sessionID: input.sessionID,
+              callID: options.toolCallId,
+            },
+            {
+              args,
+            },
+          )
           const result = await item.execute(args, {
             sessionID: input.sessionID,
-            abort: abort.signal,
+            abort: options.abortSignal!,
             messageID: assistantMsg.id,
+            callID: options.toolCallId,
             metadata: async (val) => {
               const match = processor.partFromToolCall(options.toolCallId)
               if (match && match.state.status === "running") {
@@ -609,6 +761,15 @@ export namespace Session {
               }
             },
           })
+          await Plugin.trigger(
+            "tool.execute.after",
+            {
+              tool: item.id,
+              sessionID: input.sessionID,
+              callID: options.toolCallId,
+            },
+            result,
+          )
           return result
         },
         toModelOutput(result) {
@@ -621,7 +782,7 @@ export namespace Session {
     }
 
     for (const [key, item] of Object.entries(await MCP.tools())) {
-      if (mode.tools[key] === false) continue
+      if (enabledTools[key] === false) continue
       const execute = item.execute
       if (!execute) continue
       item.execute = async (args, opts) => {
@@ -644,13 +805,93 @@ export namespace Session {
       tools[key] = item
     }
 
+    const params = {
+      temperature: model.info.temperature
+        ? (mode.temperature ?? ProviderTransform.temperature(input.providerID, input.modelID))
+        : undefined,
+      topP: mode.topP ?? ProviderTransform.topP(input.providerID, input.modelID),
+    }
+    await Plugin.trigger(
+      "chat.params",
+      {
+        model: model.info,
+        provider: await Provider.getProvider(input.providerID),
+        message: userMsg,
+      },
+      params,
+    )
     const stream = streamText({
-      onError() {},
-      maxRetries: 10,
+      onError(e) {
+        log.error("streamText error", {
+          error: e,
+        })
+      },
+      async prepareStep({ messages }) {
+        const queue = (state().queued.get(input.sessionID) ?? []).filter((x) => !x.processed)
+        if (queue.length) {
+          for (const item of queue) {
+            if (item.processed) continue
+            messages.push(
+              ...MessageV2.toModelMessage([
+                {
+                  info: item.message,
+                  parts: item.parts,
+                },
+              ]),
+            )
+            item.processed = true
+          }
+          assistantMsg.time.completed = Date.now()
+          await updateMessage(assistantMsg)
+          Object.assign(assistantMsg, {
+            id: Identifier.ascending("message"),
+            role: "assistant",
+            system,
+            path: {
+              cwd: app.path.cwd,
+              root: app.path.root,
+            },
+            cost: 0,
+            tokens: {
+              input: 0,
+              output: 0,
+              reasoning: 0,
+              cache: { read: 0, write: 0 },
+            },
+            modelID: input.modelID,
+            providerID: input.providerID,
+            mode: inputMode,
+            time: {
+              created: Date.now(),
+            },
+            sessionID: input.sessionID,
+          })
+          await updateMessage(assistantMsg)
+        }
+        return {
+          messages,
+        }
+      },
+      async experimental_repairToolCall(input) {
+        return {
+          ...input.toolCall,
+          input: JSON.stringify({
+            tool: input.toolCall.toolName,
+            error: input.error.message,
+          }),
+          toolName: "invalid",
+        }
+      },
+      maxRetries: 3,
+      activeTools: Object.keys(tools).filter((x) => x !== "invalid"),
       maxOutputTokens: outputLimit,
       abortSignal: abort.signal,
       stopWhen: stepCountIs(1000),
-      providerOptions: model.info.options,
+      providerOptions: {
+        [input.providerID]: model.info.options,
+      },
+      temperature: params.temperature,
+      topP: params.topP,
       messages: [
         ...system.map(
           (x): ModelMessage => ({
@@ -660,7 +901,6 @@ export namespace Session {
         ),
         ...MessageV2.toModelMessage(msgs),
       ],
-      temperature: model.info.temperature ? 0 : undefined,
       tools: model.info.tool_call === false ? undefined : tools,
       model: wrapLanguageModel({
         model: model.language,
@@ -678,14 +918,25 @@ export namespace Session {
       }),
     })
     const result = await processor.process(stream)
+    const queued = state().queued.get(input.sessionID) ?? []
+    const unprocessed = queued.find((x) => !x.processed)
+    if (unprocessed) {
+      unprocessed.processed = true
+      return chat(unprocessed.input)
+    }
+    for (const item of queued) {
+      item.callback(result)
+    }
+    state().queued.delete(input.sessionID)
     return result
   }
 
   function createProcessor(assistantMsg: MessageV2.Assistant, model: ModelsDev.Model) {
-    const toolCalls: Record<string, MessageV2.ToolPart> = {}
+    const toolcalls: Record<string, MessageV2.ToolPart> = {}
+    let snapshot: string | undefined
     return {
       partFromToolCall(toolCallID: string) {
-        return toolCalls[toolCallID]
+        return toolcalls[toolCallID]
       },
       async process(stream: StreamTextResult<Record<string, AITool>, never>) {
         try {
@@ -697,20 +948,11 @@ export namespace Session {
             })
             switch (value.type) {
               case "start":
-                const snapshot = await Snapshot.create(assistantMsg.sessionID)
-                if (snapshot)
-                  await updatePart({
-                    id: Identifier.ascending("part"),
-                    messageID: assistantMsg.id,
-                    sessionID: assistantMsg.sessionID,
-                    type: "snapshot",
-                    snapshot,
-                  })
                 break
 
               case "tool-input-start":
                 const part = await updatePart({
-                  id: Identifier.ascending("part"),
+                  id: toolcalls[value.id]?.id ?? Identifier.ascending("part"),
                   messageID: assistantMsg.id,
                   sessionID: assistantMsg.sessionID,
                   type: "tool",
@@ -720,17 +962,21 @@ export namespace Session {
                     status: "pending",
                   },
                 })
-                toolCalls[value.id] = part as MessageV2.ToolPart
+                toolcalls[value.id] = part as MessageV2.ToolPart
                 break
 
               case "tool-input-delta":
                 break
 
+              case "tool-input-end":
+                break
+
               case "tool-call": {
-                const match = toolCalls[value.toolCallId]
+                const match = toolcalls[value.toolCallId]
                 if (match) {
                   const part = await updatePart({
                     ...match,
+                    tool: value.toolName,
                     state: {
                       status: "running",
                       input: value.input,
@@ -739,12 +985,12 @@ export namespace Session {
                       },
                     },
                   })
-                  toolCalls[value.toolCallId] = part as MessageV2.ToolPart
+                  toolcalls[value.toolCallId] = part as MessageV2.ToolPart
                 }
                 break
               }
               case "tool-result": {
-                const match = toolCalls[value.toolCallId]
+                const match = toolcalls[value.toolCallId]
                 if (match && match.state.status === "running") {
                   await updatePart({
                     ...match,
@@ -760,22 +1006,13 @@ export namespace Session {
                       },
                     },
                   })
-                  delete toolCalls[value.toolCallId]
-                  const snapshot = await Snapshot.create(assistantMsg.sessionID)
-                  if (snapshot)
-                    await updatePart({
-                      id: Identifier.ascending("part"),
-                      messageID: assistantMsg.id,
-                      sessionID: assistantMsg.sessionID,
-                      type: "snapshot",
-                      snapshot,
-                    })
+                  delete toolcalls[value.toolCallId]
                 }
                 break
               }
 
               case "tool-error": {
-                const match = toolCalls[value.toolCallId]
+                const match = toolcalls[value.toolCallId]
                 if (match && match.state.status === "running") {
                   await updatePart({
                     ...match,
@@ -789,16 +1026,7 @@ export namespace Session {
                       },
                     },
                   })
-                  delete toolCalls[value.toolCallId]
-                  const snapshot = await Snapshot.create(assistantMsg.sessionID)
-                  if (snapshot)
-                    await updatePart({
-                      id: Identifier.ascending("part"),
-                      messageID: assistantMsg.id,
-                      sessionID: assistantMsg.sessionID,
-                      type: "snapshot",
-                      snapshot,
-                    })
+                  delete toolcalls[value.toolCallId]
                 }
                 break
               }
@@ -813,6 +1041,7 @@ export namespace Session {
                   sessionID: assistantMsg.sessionID,
                   type: "step-start",
                 })
+                snapshot = await Snapshot.track()
                 break
 
               case "finish-step":
@@ -828,6 +1057,20 @@ export namespace Session {
                   cost: usage.cost,
                 })
                 await updateMessage(assistantMsg)
+                if (snapshot) {
+                  const patch = await Snapshot.patch(snapshot)
+                  if (patch.files.length) {
+                    await updatePart({
+                      id: Identifier.ascending("part"),
+                      messageID: assistantMsg.id,
+                      sessionID: assistantMsg.sessionID,
+                      type: "patch",
+                      hash: patch.hash,
+                      files: patch.files,
+                    })
+                  }
+                  snapshot = undefined
+                }
                 break
 
               case "text-start":
@@ -843,15 +1086,16 @@ export namespace Session {
                 }
                 break
 
-              case "text":
+              case "text-delta":
                 if (currentText) {
                   currentText.text += value.text
-                  await updatePart(currentText)
+                  if (currentText.text) await updatePart(currentText)
                 }
                 break
 
               case "text-end":
-                if (currentText && currentText.text) {
+                if (currentText) {
+                  currentText.text = currentText.text.trimEnd()
                   currentText.time = {
                     start: Date.now(),
                     end: Date.now(),
@@ -909,9 +1153,9 @@ export namespace Session {
             error: assistantMsg.error,
           })
         }
-        const p = await parts(assistantMsg.sessionID, assistantMsg.id)
+        const p = await getParts(assistantMsg.sessionID, assistantMsg.id)
         for (const part of p) {
-          if (part.type === "tool" && part.state.status !== "completed") {
+          if (part.type === "tool" && part.state.status !== "completed" && part.state.status !== "error") {
             updatePart({
               ...part,
               state: {
@@ -933,47 +1177,66 @@ export namespace Session {
     }
   }
 
-  export async function revert(_input: { sessionID: string; messageID: string; part: number }) {
-    // TODO
-    /*
-    const message = await getMessage(input.sessionID, input.messageID)
-    if (!message) return
-    const part = message.parts[input.part]
-    if (!part) return
+  export const RevertInput = z.object({
+    sessionID: Identifier.schema("session"),
+    messageID: Identifier.schema("message"),
+    partID: Identifier.schema("part").optional(),
+  })
+  export type RevertInput = z.infer<typeof RevertInput>
+
+  export async function revert(input: RevertInput) {
+    const all = await messages(input.sessionID)
+    let lastUser: MessageV2.User | undefined
     const session = await get(input.sessionID)
-    const snapshot =
-      session.revert?.snapshot ?? (await Snapshot.create(input.sessionID))
-    const old = (() => {
-      if (message.role === "assistant") {
-        const lastTool = message.parts.findLast(
-          (part, index) =>
-            part.type === "tool-invocation" && index < input.part,
-        )
-        if (lastTool && lastTool.type === "tool-invocation")
-          return message.metadata.tool[lastTool.toolInvocation.toolCallId]
-            .snapshot
+
+    let revert: Info["revert"]
+    const patches: Snapshot.Patch[] = []
+    for (const msg of all) {
+      if (msg.info.role === "user") lastUser = msg.info
+      const remaining = []
+      for (const part of msg.parts) {
+        if (revert) {
+          if (part.type === "patch") {
+            patches.push(part)
+          }
+          continue
+        }
+
+        if (!revert) {
+          if ((msg.info.id === input.messageID && !input.partID) || part.id === input.partID) {
+            // if no useful parts left in message, same as reverting whole message
+            const partID = remaining.some((item) => ["text", "tool"].includes(item.type)) ? input.partID : undefined
+            revert = {
+              messageID: !partID && lastUser ? lastUser.id : msg.info.id,
+              partID,
+            }
+          }
+          remaining.push(part)
+        }
       }
-      return message.metadata.snapshot
-    })()
-    if (old) await Snapshot.restore(input.sessionID, old)
-    await update(input.sessionID, (draft) => {
-      draft.revert = {
-        messageID: input.messageID,
-        part: input.part,
-        snapshot,
-      }
-    })
-    */
+    }
+
+    if (revert) {
+      const session = await get(input.sessionID)
+      revert.snapshot = session.revert?.snapshot ?? (await Snapshot.track())
+      await Snapshot.revert(patches)
+      if (revert.snapshot) revert.diff = await Snapshot.diff(revert.snapshot)
+      return update(input.sessionID, (draft) => {
+        draft.revert = revert
+      })
+    }
+    return session
   }
 
-  export async function unrevert(sessionID: string) {
-    const session = await get(sessionID)
-    if (!session) return
-    if (!session.revert) return
-    if (session.revert.snapshot) await Snapshot.restore(sessionID, session.revert.snapshot)
-    update(sessionID, (draft) => {
+  export async function unrevert(input: { sessionID: string }) {
+    log.info("unreverting", input)
+    const session = await get(input.sessionID)
+    if (!session.revert) return session
+    if (session.revert.snapshot) await Snapshot.restore(session.revert.snapshot)
+    const next = await update(input.sessionID, (draft) => {
       draft.revert = undefined
     })
+    return next
   }
 
   export async function summarize(input: { sessionID: string; providerID: string; modelID: string }) {
@@ -983,13 +1246,18 @@ export namespace Session {
     const filtered = msgs.filter((msg) => !lastSummary || msg.info.id >= lastSummary.info.id)
     const model = await Provider.getModel(input.providerID, input.modelID)
     const app = App.info()
-    const system = SystemPrompt.summarize(input.providerID)
+    const system = [
+      ...SystemPrompt.summarize(input.providerID),
+      ...(await SystemPrompt.environment()),
+      ...(await SystemPrompt.custom()),
+    ]
 
     const next: MessageV2.Info = {
       id: Identifier.ascending("message"),
       role: "assistant",
       sessionID: input.sessionID,
       system,
+      mode: "build",
       path: {
         cwd: app.path.cwd,
         root: app.path.root,
@@ -1012,6 +1280,7 @@ export namespace Session {
 
     const processor = createProcessor(next, model.info)
     const stream = streamText({
+      maxRetries: 10,
       abortSignal: abort.signal,
       model: model.language,
       messages: [
@@ -1038,6 +1307,10 @@ export namespace Session {
     return result
   }
 
+  function isLocked(sessionID: string) {
+    return state().pending.has(sessionID)
+  }
+
   function lock(sessionID: string) {
     log.info("locking", { sessionID })
     if (state().pending.has(sessionID)) throw new BusyError(sessionID)
@@ -1045,9 +1318,19 @@ export namespace Session {
     state().pending.set(sessionID, controller)
     return {
       signal: controller.signal,
-      [Symbol.dispose]() {
+      async [Symbol.dispose]() {
         log.info("unlocking", { sessionID })
         state().pending.delete(sessionID)
+
+        const isAutoCompacting = state().autoCompacting.get(sessionID) ?? false
+        if (isAutoCompacting) {
+          state().autoCompacting.delete(sessionID)
+          return
+        }
+
+        const session = await get(sessionID)
+        if (session.parentID) return
+
         Bus.publish(Event.Idle, {
           sessionID,
         })
@@ -1070,10 +1353,10 @@ export namespace Session {
     }
     return {
       cost: new Decimal(0)
-        .add(new Decimal(tokens.input).mul(model.cost.input).div(1_000_000))
-        .add(new Decimal(tokens.output).mul(model.cost.output).div(1_000_000))
-        .add(new Decimal(tokens.cache.read).mul(model.cost.cache_read ?? 0).div(1_000_000))
-        .add(new Decimal(tokens.cache.write).mul(model.cost.cache_write ?? 0).div(1_000_000))
+        .add(new Decimal(tokens.input).mul(model.cost?.input ?? 0).div(1_000_000))
+        .add(new Decimal(tokens.output).mul(model.cost?.output ?? 0).div(1_000_000))
+        .add(new Decimal(tokens.cache.read).mul(model.cost?.cache_read ?? 0).div(1_000_000))
+        .add(new Decimal(tokens.cache.write).mul(model.cost?.cache_write ?? 0).div(1_000_000))
         .toNumber(),
       tokens,
     }
@@ -1100,8 +1383,6 @@ export namespace Session {
       parts: [
         {
           id: Identifier.ascending("part"),
-          sessionID: input.sessionID,
-          messageID: input.messageID,
           type: "text",
           text: PROMPT_INITIALIZE.replace("${path}", app.path.root),
         },

packages/opencode/src/session/message-v2.ts

@@ -4,6 +4,7 @@ import { NamedError } from "../util/error"
 import { Message } from "./message"
 import { convertToModelMessages, type ModelMessage, type UIMessage } from "ai"
 import { Identifier } from "../id/id"
+import { LSP } from "../lsp"
 
 export namespace MessageV2 {
   export const OutputLengthError = NamedError.create("MessageOutputLengthError", z.object({}))
@@ -93,6 +94,15 @@ export namespace MessageV2 {
   })
   export type SnapshotPart = z.infer<typeof SnapshotPart>
 
+  export const PatchPart = PartBase.extend({
+    type: z.literal("patch"),
+    hash: z.string(),
+    files: z.string().array(),
+  }).openapi({
+    ref: "PatchPart",
+  })
+  export type PatchPart = z.infer<typeof PatchPart>
+
   export const TextPart = PartBase.extend({
     type: z.literal("text"),
     text: z.string(),
@@ -118,11 +128,45 @@ export namespace MessageV2 {
   })
   export type ToolPart = z.infer<typeof ToolPart>
 
+  const FilePartSourceBase = z.object({
+    text: z
+      .object({
+        value: z.string(),
+        start: z.number().int(),
+        end: z.number().int(),
+      })
+      .openapi({
+        ref: "FilePartSourceText",
+      }),
+  })
+
+  export const FileSource = FilePartSourceBase.extend({
+    type: z.literal("file"),
+    path: z.string(),
+  }).openapi({
+    ref: "FileSource",
+  })
+
+  export const SymbolSource = FilePartSourceBase.extend({
+    type: z.literal("symbol"),
+    path: z.string(),
+    range: LSP.Range,
+    name: z.string(),
+    kind: z.number().int(),
+  }).openapi({
+    ref: "SymbolSource",
+  })
+
+  export const FilePartSource = z.discriminatedUnion("type", [FileSource, SymbolSource]).openapi({
+    ref: "FilePartSource",
+  })
+
   export const FilePart = PartBase.extend({
     type: z.literal("file"),
     mime: z.string(),
     filename: z.string().optional(),
     url: z.string(),
+    source: FilePartSource.optional(),
   }).openapi({
     ref: "FilePart",
   })
@@ -168,7 +212,7 @@ export namespace MessageV2 {
   export type User = z.infer<typeof User>
 
   export const Part = z
-    .discriminatedUnion("type", [TextPart, FilePart, ToolPart, StepStartPart, StepFinishPart, SnapshotPart])
+    .discriminatedUnion("type", [TextPart, FilePart, ToolPart, StepStartPart, StepFinishPart, SnapshotPart, PatchPart])
     .openapi({
       ref: "Part",
     })
@@ -191,6 +235,7 @@ export namespace MessageV2 {
     system: z.string().array(),
     modelID: z.string(),
     providerID: z.string(),
+    mode: z.string(),
     path: z.object({
       cwd: z.string(),
       root: z.string(),
@@ -236,6 +281,14 @@ export namespace MessageV2 {
         part: Part,
       }),
     ),
+    PartRemoved: Bus.event(
+      "message.part.removed",
+      z.object({
+        sessionID: z.string(),
+        messageID: z.string(),
+        partID: z.string(),
+      }),
+    ),
   }
 
   export function fromV1(v1: Message.Info) {
@@ -255,6 +308,7 @@ export namespace MessageV2 {
         modelID: v1.metadata.assistant!.modelID,
         providerID: v1.metadata.assistant!.providerID,
         system: v1.metadata.assistant!.system,
+        mode: "build",
         error: v1.metadata.error,
       }
       const parts = v1.parts.flatMap((part): Part[] => {
@@ -394,7 +448,8 @@ export namespace MessageV2 {
                   text: part.text,
                 },
               ]
-            if (part.type === "file")
+            // text/plain files are converted into text parts, ignore them
+            if (part.type === "file" && part.mime !== "text/plain")
               return [
                 {
                   type: "file",

packages/opencode/src/session/mode.ts

@@ -1,12 +1,14 @@
-import { mergeDeep } from "remeda"
 import { App } from "../app/app"
 import { Config } from "../config/config"
 import z from "zod"
+import { Provider } from "../provider/provider"
 
 export namespace Mode {
   export const Info = z
     .object({
       name: z.string(),
+      temperature: z.number().optional(),
+      topP: z.number().optional(),
       model: z
         .object({
           modelID: z.string(),
@@ -22,39 +24,41 @@ export namespace Mode {
   export type Info = z.infer<typeof Info>
   const state = App.state("mode", async () => {
     const cfg = await Config.get()
-    const mode = mergeDeep(
-      {
-        build: {},
-        plan: {
-          tools: {
-            write: false,
-            edit: false,
-            patch: false,
-            bash: false,
-          },
+    const model = cfg.model ? Provider.parseModel(cfg.model) : undefined
+    const result: Record<string, Info> = {
+      build: {
+        model,
+        name: "build",
+        tools: {},
+      },
+      plan: {
+        name: "plan",
+        model,
+        tools: {
+          write: false,
+          edit: false,
+          patch: false,
         },
       },
-      cfg.mode ?? {},
-    )
-    const result: Record<string, Info> = {}
-    for (const [key, value] of Object.entries(mode)) {
+    }
+    for (const [key, value] of Object.entries(cfg.mode ?? {})) {
+      if (value.disable) continue
       let item = result[key]
       if (!item)
         item = result[key] = {
           name: key,
           tools: {},
         }
-      const model = value.model ?? cfg.model
-      if (model) {
-        const [providerID, ...rest] = model.split("/")
-        const modelID = rest.join("/")
-        item.model = {
-          modelID,
-          providerID,
-        }
-      }
+      item.name = key
+      if (value.model) item.model = Provider.parseModel(value.model)
       if (value.prompt) item.prompt = value.prompt
-      if (value.tools) item.tools = value.tools
+      if (value.temperature != undefined) item.temperature = value.temperature
+      if (value.top_p != undefined) item.topP = value.top_p
+      if (value.tools)
+        item.tools = {
+          ...value.tools,
+          ...item.tools,
+        }
     }
 
     return result

packages/opencode/src/session/prompt/beast.txt

@@ -1,82 +1,98 @@
-You are an agent known as opencode - please keep going until the user’s query is completely resolved, before ending your turn and yielding back to the user.
+You are opencode, an agent - please keep going until the user’s query is completely resolved, before ending your turn and yielding back to the user.
 
 Your thinking should be thorough and so it's fine if it's very long. However, avoid unnecessary repetition and verbosity. You should be concise, but thorough.
 
 You MUST iterate and keep going until the problem is solved.
 
-I want you to fully solve this autonomously before coming back to me.
+You have everything you need to resolve this problem. I want you to fully solve this autonomously before coming back to me.
 
 Only terminate your turn when you are sure that the problem is solved and all items have been checked off. Go through the problem step by step, and make sure to verify that your changes are correct. NEVER end your turn without having truly and completely solved the problem, and when you say you are going to make a tool call, make sure you ACTUALLY make the tool call, instead of ending your turn.
 
+THE PROBLEM CAN NOT BE SOLVED WITHOUT EXTENSIVE INTERNET RESEARCH.
+
+You must use the webfetch tool to recursively gather all information from URL's provided to  you by the user, as well as any links you find in the content of those pages.
+
+Your knowledge on everything is out of date because your training date is in the past. 
+
+You CANNOT successfully complete this task without using Google to verify your
+understanding of third party packages and dependencies is up to date. You must use the webfetch tool to search google for how to properly use libraries, packages, frameworks, dependencies, etc. every single time you install or implement one. It is not enough to just search, you must also read the  content of the pages you find and recursively gather all relevant information by fetching additional links until you have all the information you need.
+
 Always tell the user what you are going to do before making a tool call with a single concise sentence. This will help them understand what you are doing and why.
 
 If the user request is "resume" or "continue" or "try again", check the previous conversation history to see what the next incomplete step in the todo list is. Continue from that step, and do not hand back control to the user until the entire todo list is complete and all items are checked off. Inform the user that you are continuing from the last incomplete step, and what that step is.
 
-Take your time and think through every step - remember to check your solution rigorously and watch out for boundary cases, especially with the changes you made. Your solution must be perfect. If not, continue working on it. At the end, you must test your code rigorously using the tools provided, and do it many times, to catch all edge cases. If it is not robust, iterate more and make it perfect. Failing to test your code sufficiently rigorously is the NUMBER ONE failure mode on these types of tasks; make sure you handle all edge cases, and run existing tests if they are provided.
+Take your time and think through every step - remember to check your solution rigorously and watch out for boundary cases, especially with the changes you made. Use the sequential thinking tool if available. Your solution must be perfect. If not, continue working on it. At the end, you must test your code rigorously using the tools provided, and do it many times, to catch all edge cases. If it is not robust, iterate more and make it perfect. Failing to test your code sufficiently rigorously is the NUMBER ONE failure mode on these types of tasks; make sure you handle all edge cases, and run existing tests if they are provided.
 
 You MUST plan extensively before each function call, and reflect extensively on the outcomes of the previous function calls. DO NOT do this entire process by making function calls only, as this can impair your ability to solve the problem and think insightfully.
 
-# Workflow
+You MUST keep working until the problem is completely solved, and all items in the todo list are checked off. Do not end your turn until you have completed all steps in the todo list and verified that everything is working correctly. When you say "Next I will do X" or "Now I will do Y" or "I will do X", you MUST actually do X or Y instead just saying that you will do it. 
 
-1. Understand the problem deeply. Carefully read the issue and think critically about what is required.
-2. Investigate the codebase. Explore relevant files, search for key functions, and gather context.
-3. Develop a clear, step-by-step plan. Break down the fix into manageable, incremental steps. Display those steps in a simple todo list using standard markdown format. Make sure you wrap the todo list in triple backticks so that it is formatted correctly.
-4. Implement the fix incrementally. Make small, testable code changes.
-5. Debug as needed. Use debugging techniques to isolate and resolve issues.
-6. Test frequently. Run tests after each change to verify correctness.
-7. Iterate until the root cause is fixed and all tests pass.
-8. Reflect and validate comprehensively. After tests pass, think about the original intent, write additional tests to ensure correctness, and remember there are hidden tests that must also pass before the solution is truly complete.
+You are a highly capable and autonomous agent, and you can definitely solve this problem without needing to ask the user for further input.
+
+# Workflow
+1. Fetch any URL's provided by the user using the `webfetch` tool.
+2. Understand the problem deeply. Carefully read the issue and think critically about what is required. Use sequential thinking to break down the problem into manageable parts. Consider the following:
+   - What is the expected behavior?
+   - What are the edge cases?
+   - What are the potential pitfalls?
+   - How does this fit into the larger context of the codebase?
+   - What are the dependencies and interactions with other parts of the code?
+3. Investigate the codebase. Explore relevant files, search for key functions, and gather context.
+4. Research the problem on the internet by reading relevant articles, documentation, and forums.
+5. Develop a clear, step-by-step plan. Break down the fix into manageable, incremental steps. Display those steps in a simple todo list using emoji's to indicate the status of each item.
+6. Implement the fix incrementally. Make small, testable code changes.
+7. Debug as needed. Use debugging techniques to isolate and resolve issues.
+8. Test frequently. Run tests after each change to verify correctness.
+9. Iterate until the root cause is fixed and all tests pass.
+10. Reflect and validate comprehensively. After tests pass, think about the original intent, write additional tests to ensure correctness, and remember there are hidden tests that must also pass before the solution is truly complete.
 
 Refer to the detailed sections below for more information on each step.
 
-## 1. Deeply Understand the Problem
+## 1. Fetch Provided URLs
+- If the user provides a URL, use the `webfetch` tool to retrieve the content of the provided URL.
+- After fetching, review the content returned by the webfetch tool.
+- If you find any additional URLs or links that are relevant, use the `webfetch` tool again to retrieve those links.
+- Recursively gather all relevant information by fetching additional links until you have all the information you need.
+
+## 2. Deeply Understand the Problem
 Carefully read the issue and think hard about a plan to solve it before coding.
 
-## 2. Codebase Investigation
+## 3. Codebase Investigation
 - Explore relevant files and directories.
 - Search for key functions, classes, or variables related to the issue.
 - Read and understand relevant code snippets.
 - Identify the root cause of the problem.
 - Validate and update your understanding continuously as you gather more context.
 
-## 3. Fetch Provided URLs
-- If the user provides a URL, use the `functions.fetch_webpage` tool to retrieve the content of the provided URL.
+## 4. Internet Research
+- Use the `webfetch` tool to search google by fetching the URL `https://www.google.com/search?q=your+search+query`.
 - After fetching, review the content returned by the fetch tool.
-- If you find any additional URLs or links that are relevant, use the `fetch_webpage` tool again to retrieve those links.
-- Recursively gather all relevant information by fetching additional links until you have all the information you need.
+- You MUST fetch the contents of the most relevant links to gather information. Do not rely on the summary that you find in the search results.
+- As you fetch each link, read the content thoroughly and fetch any additional links that you find withhin the content that are relevant to the problem.
+- Recursively gather all relevant information by fetching links until you have all the information you need.
 
-## 4. Develop a Detailed Plan 
+## 5. Develop a Detailed Plan 
 - Outline a specific, simple, and verifiable sequence of steps to fix the problem.
 - Create a todo list in markdown format to track your progress.
 - Each time you complete a step, check it off using `[x]` syntax.
 - Each time you check off a step, display the updated todo list to the user.
 - Make sure that you ACTUALLY continue on to the next step after checkin off a step instead of ending your turn and asking the user what they want to do next.
 
-## 5. Making Code Changes
+## 6. Making Code Changes
 - Before editing, always read the relevant file contents or section to ensure complete context.
 - Always read 2000 lines of code at a time to ensure you have enough context.
 - If a patch is not applied correctly, attempt to reapply it.
 - Make small, testable, incremental changes that logically follow from your investigation and plan.
+- Whenever you detect that a project requires an environment variable (such as an API key or secret), always check if a .env file exists in the project root. If it does not exist, automatically create a .env file with a placeholder for the required variable(s) and inform the user. Do this proactively, without waiting for the user to request it.
 
-## 6. Debugging
+## 7. Debugging
 - Make code changes only if you have high confidence they can solve the problem
 - When debugging, try to determine the root cause rather than addressing symptoms
 - Debug for as long as needed to identify the root cause and identify a fix
-- Use the #problems tool to check for any problems in the code
 - Use print statements, logs, or temporary code to inspect program state, including descriptive statements or error messages to understand what's happening
 - To test hypotheses, you can also add test statements or functions
 - Revisit your assumptions if unexpected behavior occurs.
 
-# Fetch Webpage
-Use the `webfetch` tool when the user provides a URL. Follow these steps exactly.
-
-1. Use the `webfetch` tool to retrieve the content of the provided URL.
-2. After fetching, review the content returned by the fetch tool.
-3. If you find any additional URLs or links that are relevant, use the `webfetch` tool again to retrieve those links.
-4. Go back to step 2 and repeat until you have all the information you need.
-
-IMPORTANT: Recursively fetching links is crucial. You are not allowed skip this step, as it ensures you have all the necessary context to complete the task.
-
 # How to create a Todo List
 Use the following format to create a todo list:
 ```markdown
@@ -85,11 +101,59 @@ Use the following format to create a todo list:
 - [ ] Step 3: Description of the third step
 ```
 
-Do not ever use HTML tags or any other formatting for the todo list, as it will not be rendered correctly. Always use the markdown format shown above.
+Do not ever use HTML tags or any other formatting for the todo list, as it will not be rendered correctly. Always use the markdown format shown above. Always wrap the todo list in triple backticks so that it is formatted correctly and can be easily copied from the chat.
 
-# Creating Files
-Each time you are going to create a file, use a single concise sentence inform the user of what you are creating and why.
+Always show the completed todo list to the user as the last item in your message, so that they can see that you have addressed all of the steps.
 
-# Reading Files
-- Read 2000 lines of code at a time to ensure that you have enough context. 
-- Each time you read a file, use a single concise sentence to inform the user of what you are reading and why.
+
+# Communication Guidelines
+Always communicate clearly and concisely in a casual, friendly yet professional tone. 
+<examples>
+"Let me fetch the URL you provided to gather more information."
+"Ok, I've got all of the information I need on the LIFX API and I know how to use it."
+"Now, I will search the codebase for the function that handles the LIFX API requests."
+"I need to update several files here - stand by"
+"OK! Now let's run the tests to make sure everything is working correctly."
+"Whelp - I see we have some problems. Let's fix those up."
+</examples>
+
+- Respond with clear, direct answers. Use bullet points and code blocks for structure. - Avoid unnecessary explanations, repetition, and filler.  
+- Always write code directly to the correct files.
+- Do not display code to the user unless they specifically ask for it.
+- Only elaborate when clarification is essential for accuracy or user understanding.
+
+# Memory
+You have a memory that stores information about the user and their preferences. This memory is used to provide a more personalized experience. You can access and update this memory as needed. The memory is stored in a file called `.github/instructions/memory.instruction.md`. If the file is empty, you'll need to create it. 
+
+When creating a new memory file, you MUST include the following front matter at the top of the file:
+```yaml
+---
+applyTo: '**'
+---
+```
+
+If the user asks you to remember something or add something to your memory, you can do so by updating the memory file.
+
+# Reading Files and Folders
+
+**Always check if you have already read a file, folder, or workspace structure before reading it again.**
+
+- If you have already read the content and it has not changed, do NOT re-read it.
+- Only re-read files or folders if:
+  - You suspect the content has changed since your last read.
+  - You have made edits to the file or folder.
+  - You encounter an error that suggests the context may be stale or incomplete.
+- Use your internal memory and previous context to avoid redundant reads.
+- This will save time, reduce unnecessary operations, and make your workflow more efficient.
+
+# Writing Prompts
+If you are asked to write a prompt,  you should always generate the prompt in markdown format.
+
+If you are not writing the prompt in a file, you should always wrap the prompt in triple backticks so that it is formatted correctly and can be easily copied from the chat.
+
+Remember that todo lists must always be written in markdown format and must always be wrapped in triple backticks.
+
+# Git 
+If the user tells you to stage and commit, you may do so. 
+
+You are NEVER allowed to stage and commit files automatically.

packages/opencode/src/session/prompt/gemini.txt

@@ -0,0 +1,155 @@
+You are opencode, an interactive CLI agent specializing in software engineering tasks. Your primary goal is to help users safely and efficiently, adhering strictly to the following instructions and utilizing your available tools.
+
+# Core Mandates
+
+- **Conventions:** Rigorously adhere to existing project conventions when reading or modifying code. Analyze surrounding code, tests, and configuration first.
+- **Libraries/Frameworks:** NEVER assume a library/framework is available or appropriate. Verify its established usage within the project (check imports, configuration files like 'package.json', 'Cargo.toml', 'requirements.txt', 'build.gradle', etc., or observe neighboring files) before employing it.
+- **Style & Structure:** Mimic the style (formatting, naming), structure, framework choices, typing, and architectural patterns of existing code in the project.
+- **Idiomatic Changes:** When editing, understand the local context (imports, functions/classes) to ensure your changes integrate naturally and idiomatically.
+- **Comments:** Add code comments sparingly. Focus on *why* something is done, especially for complex logic, rather than *what* is done. Only add high-value comments if necessary for clarity or if requested by the user. Do not edit comments that are separate from the code you are changing. *NEVER* talk to the user or describe your changes through comments.
+- **Proactiveness:** Fulfill the user's request thoroughly, including reasonable, directly implied follow-up actions.
+- **Confirm Ambiguity/Expansion:** Do not take significant actions beyond the clear scope of the request without confirming with the user. If asked *how* to do something, explain first, don't just do it.
+- **Explaining Changes:** After completing a code modification or file operation *do not* provide summaries unless asked.
+- **Path Construction:** Before using any file system tool (e.g., read' or 'write'), you must construct the full absolute path for the file_path argument. Always combine the absolute path of the project's root directory with the file's path relative to the root. For example, if the project root is /path/to/project/ and the file is foo/bar/baz.txt, the final path you must use is /path/to/project/foo/bar/baz.txt. If the user provides a relative path, you must resolve it against the root directory to create an absolute path.
+- **Do Not revert changes:** Do not revert changes to the codebase unless asked to do so by the user. Only revert changes made by you if they have resulted in an error or if the user has explicitly asked you to revert the changes.
+
+# Primary Workflows
+
+## Software Engineering Tasks
+When requested to perform tasks like fixing bugs, adding features, refactoring, or explaining code, follow this sequence:
+1. **Understand:** Think about the user's request and the relevant codebase context. Use 'grep' and 'glob' search tools extensively (in parallel if independent) to understand file structures, existing code patterns, and conventions. Use 'read' to understand context and validate any assumptions you may have.
+2. **Plan:** Build a coherent and grounded (based on the understanding in step 1) plan for how you intend to resolve the user's task. Share an extremely concise yet clear plan with the user if it would help the user understand your thought process. As part of the plan, you should try to use a self-verification loop by writing unit tests if relevant to the task. Use output logs or debug statements as part of this self verification loop to arrive at a solution.
+3. **Implement:** Use the available tools (e.g., 'edit', 'write' 'bash' ...) to act on the plan, strictly adhering to the project's established conventions (detailed under 'Core Mandates').
+4. **Verify (Tests):** If applicable and feasible, verify the changes using the project's testing procedures. Identify the correct test commands and frameworks by examining 'README' files, build/package configuration (e.g., 'package.json'), or existing test execution patterns. NEVER assume standard test commands.
+5. **Verify (Standards):** VERY IMPORTANT: After making code changes, execute the project-specific build, linting and type-checking commands (e.g., 'tsc', 'npm run lint', 'ruff check .') that you have identified for this project (or obtained from the user). This ensures code quality and adherence to standards. If unsure about these commands, you can ask the user if they'd like you to run them and if so how to.
+
+## New Applications
+
+**Goal:** Autonomously implement and deliver a visually appealing, substantially complete, and functional prototype. Utilize all tools at your disposal to implement the application. Some tools you may especially find useful are 'write', 'edit' and 'bash'.
+
+1. **Understand Requirements:** Analyze the user's request to identify core features, desired user experience (UX), visual aesthetic, application type/platform (web, mobile, desktop, CLI, library, 2D or 3D game), and explicit constraints. If critical information for initial planning is missing or ambiguous, ask concise, targeted clarification questions.
+2. **Propose Plan:** Formulate an internal development plan. Present a clear, concise, high-level summary to the user. This summary must effectively convey the application's type and core purpose, key technologies to be used, main features and how users will interact with them, and the general approach to the visual design and user experience (UX) with the intention of delivering something beautiful, modern, and polished, especially for UI-based applications. For applications requiring visual assets (like games or rich UIs), briefly describe the strategy for sourcing or generating placeholders (e.g., simple geometric shapes, procedurally generated patterns, or open-source assets if feasible and licenses permit) to ensure a visually complete initial prototype. Ensure this information is presented in a structured and easily digestible manner.
+3. **User Approval:** Obtain user approval for the proposed plan.
+4. **Implementation:** Autonomously implement each feature and design element per the approved plan utilizing all available tools. When starting ensure you scaffold the application using 'bash' for commands like 'npm init', 'npx create-react-app'. Aim for full scope completion. Proactively create or source necessary placeholder assets (e.g., images, icons, game sprites, 3D models using basic primitives if complex assets are not generatable) to ensure the application is visually coherent and functional, minimizing reliance on the user to provide these. If the model can generate simple assets (e.g., a uniformly colored square sprite, a simple 3D cube), it should do so. Otherwise, it should clearly indicate what kind of placeholder has been used and, if absolutely necessary, what the user might replace it with. Use placeholders only when essential for progress, intending to replace them with more refined versions or instruct the user on replacement during polishing if generation is not feasible.
+5. **Verify:** Review work against the original request, the approved plan. Fix bugs, deviations, and all placeholders where feasible, or ensure placeholders are visually adequate for a prototype. Ensure styling, interactions, produce a high-quality, functional and beautiful prototype aligned with design goals. Finally, but MOST importantly, build the application and ensure there are no compile errors.
+6. **Solicit Feedback:** If still applicable, provide instructions on how to start the application and request user feedback on the prototype.
+
+# Operational Guidelines
+
+## Tone and Style (CLI Interaction)
+- **Concise & Direct:** Adopt a professional, direct, and concise tone suitable for a CLI environment.
+- **Minimal Output:** Aim for fewer than 3 lines of text output (excluding tool use/code generation) per response whenever practical. Focus strictly on the user's query.
+- **Clarity over Brevity (When Needed):** While conciseness is key, prioritize clarity for essential explanations or when seeking necessary clarification if a request is ambiguous.
+- **No Chitchat:** Avoid conversational filler, preambles ("Okay, I will now..."), or postambles ("I have finished the changes..."). Get straight to the action or answer.
+- **Formatting:** Use GitHub-flavored Markdown. Responses will be rendered in monospace.
+- **Tools vs. Text:** Use tools for actions, text output *only* for communication. Do not add explanatory comments within tool calls or code blocks unless specifically part of the required code/command itself.
+- **Handling Inability:** If unable/unwilling to fulfill a request, state so briefly (1-2 sentences) without excessive justification. Offer alternatives if appropriate.
+
+## Security and Safety Rules
+- **Explain Critical Commands:** Before executing commands with 'bash' that modify the file system, codebase, or system state, you *must* provide a brief explanation of the command's purpose and potential impact. Prioritize user understanding and safety. You should not ask permission to use the tool; the user will be presented with a confirmation dialogue upon use (you do not need to tell them this).
+- **Security First:** Always apply security best practices. Never introduce code that exposes, logs, or commits secrets, API keys, or other sensitive information.
+
+## Tool Usage
+- **File Paths:** Always use absolute paths when referring to files with tools like 'read' or 'write'. Relative paths are not supported. You must provide an absolute path.
+- **Parallelism:** Execute multiple independent tool calls in parallel when feasible (i.e. searching the codebase).
+- **Command Execution:** Use the 'bash' tool for running shell commands, remembering the safety rule to explain modifying commands first.
+- **Background Processes:** Use background processes (via \`&\`) for commands that are unlikely to stop on their own, e.g. \`node server.js &\`. If unsure, ask the user.
+- **Interactive Commands:** Try to avoid shell commands that are likely to require user interaction (e.g. \`git rebase -i\`). Use non-interactive versions of commands (e.g. \`npm init -y\` instead of \`npm init\`) when available, and otherwise remind the user that interactive shell commands are not supported and may cause hangs until canceled by the user.
+- **Respect User Confirmations:** Most tool calls (also denoted as 'function calls') will first require confirmation from the user, where they will either approve or cancel the function call. If a user cancels a function call, respect their choice and do _not_ try to make the function call again. It is okay to request the tool call again _only_ if the user requests that same tool call on a subsequent prompt. When a user cancels a function call, assume best intentions from the user and consider inquiring if they prefer any alternative paths forward.
+
+## Interaction Details
+- **Help Command:** The user can use '/help' to display help information.
+- **Feedback:** To report a bug or provide feedback, please use the /bug command.
+
+# Examples (Illustrating Tone and Workflow)
+<example>
+user: 1 + 2
+model: 3
+</example>
+
+<example>
+user: is 13 a prime number?
+model: true
+</example>
+
+<example>
+user: list files here.
+model: [tool_call: ls for path '/path/to/project']
+</example>
+
+<example>
+user: start the server implemented in server.js
+model: [tool_call: bash for 'node server.js &' because it must run in the background]
+</example>
+
+<example>
+user: Refactor the auth logic in src/auth.py to use the requests library instead of urllib.
+model: Okay, I can refactor 'src/auth.py'.
+First, I'll analyze the code and check for a test safety net before planning any changes.
+[tool_call: glob for path 'tests/test_auth.py']
+[tool_call: read for absolute_path '/path/to/tests/test_auth.py']
+(After analysis)
+Great, 'tests/test_auth.py' exists and covers the core authentication logic. With this safety net in place, I can safely plan the refactoring.
+I'll also confirm 'requests' is a dependency.
+[tool_call: read for absolute_path '/path/to/requirements.txt']
+(After analysis)
+Looks good, 'requests' is available.
+
+Here's the plan:
+1.  Replace the 'urllib' calls with 'requests'.
+2.  Add proper 'try...except' error handling for the new network calls.
+3.  Remove the old 'urllib' import.
+4.  Run the project's linter and tests to verify the changes.
+
+Should I proceed?
+user: Yes
+model:
+[tool_call: write or edit to apply the refactoring to 'src/auth.py']
+Refactoring complete. Running verification...
+[tool_call: bash for 'ruff check src/auth.py && pytest']
+(After verification passes)
+All checks passed. This is a stable checkpoint.
+
+<example>
+user: Delete the temp directory.
+model: I can run \`rm -rf /path/to/project/temp\`. This will permanently delete the directory and all its contents.
+</example>
+
+<example>
+user: Write tests for someFile.ts
+model:
+Okay, I can write those tests. First, I'll read \`someFile.ts\` to understand its functionality.
+[tool_call: read for absolute_path '/path/to/someFile.ts' or use glob to find \`someFile.ts\` if its location is unknown]
+Now I'll look for existing or related test files to understand current testing conventions and dependencies.
+[tool_call: glob for paths ['**/*.test.ts', 'src/**/*.spec.ts'] assuming someFile.ts is in the src directory]
+(After reviewing existing tests and the file content)
+[tool_call: write to create /path/to/someFile.test.ts with the test code]
+I've written the tests. Now I'll run the project's test command to verify them.
+[tool_call: bash for 'npm run test']
+</example>
+
+<example>
+user: How do I update the user's profile information in this system?
+model:
+I'm not immediately sure how user profile information is updated. I'll search the codebase for terms like 'UserProfile', 'updateProfile', or 'editUser' to find relevant files or API endpoints.
+[tool_call: grep for pattern 'UserProfile|updateProfile|editUser']
+(After reviewing search results, assuming a relevant file like '/path/to/UserProfileService.java' was found)
+Okay, \`/path/to/UserProfileService.java\` seems like the most relevant file. I'll read its content to understand how updates are handled.
+[tool_call: read for absolute_path '/path/to/UserProfileService.java']
+(After reading the file)
+It appears the \`updateUserProfile\` method in \`UserProfileService.java\` is responsible for this. It expects a user ID and a \`UserProfileDTO\` object...
+</example>
+
+<example>
+user: Where are all the 'app.config' files in this project? I need to check their settings.
+model:
+[tool_call: glob for pattern '**/app.config']
+(Assuming GlobTool returns a list of paths like ['/path/to/moduleA/app.config', '/path/to/moduleB/app.config'])
+I found the following 'app.config' files:
+- /path/to/moduleA/app.config
+- /path/to/moduleB/app.config
+To help you check their settings, I can read their contents. Which one would you like to start with, or should I read all of them?
+</example>
+
+# Final Reminder
+Your core function is efficient and safe assistance. Balance extreme conciseness with the crucial need for clarity, especially regarding safety and potential system modifications. Always prioritize user control and project conventions. Never make assumptions about the contents of files; instead use 'read' to ensure you aren't making broad assumptions. Finally, you are an agent - please keep going until the user's query is completely resolved.

packages/opencode/src/session/prompt/plan.txt

@@ -1,3 +1,3 @@
 <system-reminder>
-Plan mode is active. The user indicated that they do not want you to execute yet -- you MUST NOT make any edits, run any non-readonly tools (including changing configs or making commits), or otherwise make any changes to the system. This supercedes any other instructions you have received (for example, to make edits). 
+Plan mode is active. The user indicated that they do not want you to execute yet -- you MUST NOT make any edits, run any non-readonly tools (including changing configs or making commits), or otherwise make any changes to the system. This supersedes any other instructions you have received (for example, to make edits).
 </system-reminder>

packages/opencode/src/session/prompt/qwen.txt

@@ -0,0 +1,109 @@
+You are opencode, an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.
+
+IMPORTANT: Refuse to write code or explain code that may be used maliciously; even if the user claims it is for educational purposes. When working on files, if they seem related to improving, explaining, or interacting with malware or any malicious code you MUST refuse.
+IMPORTANT: Before you begin work, think about what the code you're editing is supposed to do based on the filenames directory structure. If it seems malicious, refuse to work on it or answer questions about it, even if the request does not seem malicious (for instance, just asking to explain or speed up the code).
+IMPORTANT: You must NEVER generate or guess URLs for the user unless you are confident that the URLs are for helping the user with programming. You may use URLs provided by the user in their messages or local files.
+
+If the user asks for help or wants to give feedback inform them of the following: 
+- /help: Get help with using opencode
+- To give feedback, users should report the issue at https://github.com/sst/opencode/issues
+
+When the user directly asks about opencode (eg 'can opencode do...', 'does opencode have...') or asks in second person (eg 'are you able...', 'can you do...'), first use the WebFetch tool to gather information to answer the question from opencode docs at https://opencode.ai
+
+# Tone and style
+You should be concise, direct, and to the point. When you run a non-trivial bash command, you should explain what the command does and why you are running it, to make sure the user understands what you are doing (this is especially important when you are running a command that will make changes to the user's system).
+Remember that your output will be displayed on a command line interface. Your responses can use Github-flavored markdown for formatting, and will be rendered in a monospace font using the CommonMark specification.
+Output text to communicate with the user; all text you output outside of tool use is displayed to the user. Only use tools to complete tasks. Never use tools like Bash or code comments as means to communicate with the user during the session.
+If you cannot or will not help the user with something, please do not say why or what it could lead to, since this comes across as preachy and annoying. Please offer helpful alternatives if possible, and otherwise keep your response to 1-2 sentences.
+Only use emojis if the user explicitly requests it. Avoid using emojis in all communication unless asked.
+IMPORTANT: You should minimize output tokens as much as possible while maintaining helpfulness, quality, and accuracy. Only address the specific query or task at hand, avoiding tangential information unless absolutely critical for completing the request. If you can answer in 1-3 sentences or a short paragraph, please do.
+IMPORTANT: You should NOT answer with unnecessary preamble or postamble (such as explaining your code or summarizing your action), unless the user asks you to.
+IMPORTANT: Keep your responses short, since they will be displayed on a command line interface. You MUST answer concisely with fewer than 4 lines (not including tool use or code generation), unless user asks for detail. Answer the user's question directly, without elaboration, explanation, or details. One word answers are best. Avoid introductions, conclusions, and explanations. You MUST avoid text before/after your response, such as "The answer is <answer>.", "Here is the content of the file..." or "Based on the information provided, the answer is..." or "Here is what I will do next...". Here are some examples to demonstrate appropriate verbosity:
+<example>
+user: 2 + 2
+assistant: 4
+</example>
+
+<example>
+user: what is 2+2?
+assistant: 4
+</example>
+
+<example>
+user: is 11 a prime number?
+assistant: Yes
+</example>
+
+<example>
+user: what command should I run to list files in the current directory?
+assistant: ls
+</example>
+
+<example>
+user: what command should I run to watch files in the current directory?
+assistant: [use the ls tool to list the files in the current directory, then read docs/commands in the relevant file to find out how to watch files]
+npm run dev
+</example>
+
+<example>
+user: How many golf balls fit inside a jetta?
+assistant: 150000
+</example>
+
+<example>
+user: what files are in the directory src/?
+assistant: [runs ls and sees foo.c, bar.c, baz.c]
+user: which file contains the implementation of foo?
+assistant: src/foo.c
+</example>
+
+<example>
+user: write tests for new feature
+assistant: [uses grep and glob search tools to find where similar tests are defined, uses concurrent read file tool use blocks in one tool call to read relevant files at the same time, uses edit file tool to write new tests]
+</example>
+
+# Proactiveness
+You are allowed to be proactive, but only when the user asks you to do something. You should strive to strike a balance between:
+1. Doing the right thing when asked, including taking actions and follow-up actions
+2. Not surprising the user with actions you take without asking
+For example, if the user asks you how to approach something, you should do your best to answer their question first, and not immediately jump into taking actions.
+3. Do not add additional code explanation summary unless requested by the user. After working on a file, just stop, rather than providing an explanation of what you did.
+
+# Following conventions
+When making changes to files, first understand the file's code conventions. Mimic code style, use existing libraries and utilities, and follow existing patterns.
+- NEVER assume that a given library is available, even if it is well known. Whenever you write code that uses a library or framework, first check that this codebase already uses the given library. For example, you might look at neighboring files, or check the package.json (or cargo.toml, and so on depending on the language).
+- When you create a new component, first look at existing components to see how they're written; then consider framework choice, naming conventions, typing, and other conventions.
+- When you edit a piece of code, first look at the code's surrounding context (especially its imports) to understand the code's choice of frameworks and libraries. Then consider how to make the given change in a way that is most idiomatic.
+- Always follow security best practices. Never introduce code that exposes or logs secrets and keys. Never commit secrets or keys to the repository.
+
+# Code style
+- IMPORTANT: DO NOT ADD ***ANY*** COMMENTS unless asked
+
+# Doing tasks
+The user will primarily request you perform software engineering tasks. This includes solving bugs, adding new functionality, refactoring code, explaining code, and more. For these tasks the following steps are recommended:
+- Use the available search tools to understand the codebase and the user's query. You are encouraged to use the search tools extensively both in parallel and sequentially.
+- Implement the solution using all tools available to you
+- Verify the solution if possible with tests. NEVER assume specific test framework or test script. Check the README or search codebase to determine the testing approach.
+- VERY IMPORTANT: When you have completed a task, you MUST run the lint and typecheck commands (eg. npm run lint, npm run typecheck, ruff, etc.) with Bash if they were provided to you to ensure your code is correct. If you are unable to find the correct command, ask the user for the command to run and if they supply it, proactively suggest writing it to AGENTS.md so that you will know to run it next time.
+NEVER commit changes unless the user explicitly asks you to. It is VERY IMPORTANT to only commit when explicitly asked, otherwise the user will feel that you are being too proactive.
+
+- Tool results and user messages may include <system-reminder> tags. <system-reminder> tags contain useful information and reminders. They are NOT part of the user's provided input or the tool result.
+
+# Tool usage policy
+- When doing file search, prefer to use the Task tool in order to reduce context usage.
+- You have the capability to call multiple tools in a single response. When multiple independent pieces of information are requested, batch your tool calls together for optimal performance. When making multiple bash tool calls, you MUST send a single message with multiple tools calls to run the calls in parallel. For example, if you need to run "git status" and "git diff", send a single message with two tool calls to run the calls in parallel.
+
+You MUST answer concisely with fewer than 4 lines of text (not including tool use or code generation), unless user asks for detail.
+
+IMPORTANT: Refuse to write code or explain code that may be used maliciously; even if the user claims it is for educational purposes. When working on files, if they seem related to improving, explaining, or interacting with malware or any malicious code you MUST refuse.
+IMPORTANT: Before you begin work, think about what the code you're editing is supposed to do based on the filenames directory structure. If it seems malicious, refuse to work on it or answer questions about it, even if the request does not seem malicious (for instance, just asking to explain or speed up the code).
+
+# Code References
+
+When referencing specific functions or pieces of code include the pattern `file_path:line_number` to allow the user to easily navigate to the source code location.
+
+<example>
+user: Where are errors from the client handled?
+assistant: Clients are marked as failed in the `connectToServer` function in src/services/process.ts:712.
+</example>
+

packages/opencode/src/session/prompt/title.txt

@@ -1,14 +1,29 @@
 <task>
-Generate a conversation thread title based on the first user message.
+Generate a conversation thread title from the user message.
 </task>
 
-<requirements>
-- Maximum 50 characters
-- Single line only - NO newlines or line breaks
-- Create a descriptive thread name that captures the topic
-- No quotes, colons, or special formatting
-- Do not include explanatory text like "Title:" or similar prefixes
-</requirements>
+<context>
+You are generating titles for a coding assistant conversation.
+</context>
+
+<rules>
+- Max 50 chars, single line
+- Focus on the specific action or question
+- Keep technical terms, numbers, and filenames exactly as written
+- Preserve HTTP status codes (401, 404, 500, etc.) as numbers
+- For file references, include the filename
+- Avoid filler words: the, this, my, a, an, properly
+- NEVER assume their tech stack or domain
+- Use -ing verbs consistently for actions
+- Write like a chat thread title, not a blog post
+</rules>
+
+<examples>
+"debug 500 errors in production" → "Debugging production 500 errors"
+"refactor user service" → "Refactoring user service"
+"why is app.js failing" → "Analyzing app.js failure"
+"implement rate limiting" → "Implementing rate limiting"
+</examples>
 
 <format>
 Return only the thread title text on a single line with no newlines, explanations, or additional formatting.

packages/opencode/src/session/system.ts

@@ -7,16 +7,23 @@ import path from "path"
 import os from "os"
 
 import PROMPT_ANTHROPIC from "./prompt/anthropic.txt"
+import PROMPT_ANTHROPIC_WITHOUT_TODO from "./prompt/qwen.txt"
 import PROMPT_BEAST from "./prompt/beast.txt"
+import PROMPT_GEMINI from "./prompt/gemini.txt"
 import PROMPT_ANTHROPIC_SPOOF from "./prompt/anthropic_spoof.txt"
 import PROMPT_SUMMARIZE from "./prompt/summarize.txt"
 import PROMPT_TITLE from "./prompt/title.txt"
 
 export namespace SystemPrompt {
-  export function provider(providerID: string, modelID: string) {
-    if (providerID === "anthropic") return [PROMPT_ANTHROPIC_SPOOF.trim(), PROMPT_ANTHROPIC]
+  export function header(providerID: string) {
+    if (providerID.includes("anthropic")) return [PROMPT_ANTHROPIC_SPOOF.trim()]
+    return []
+  }
+  export function provider(modelID: string) {
     if (modelID.includes("gpt-") || modelID.includes("o1") || modelID.includes("o3")) return [PROMPT_BEAST]
-    return [PROMPT_ANTHROPIC]
+    if (modelID.includes("gemini-")) return [PROMPT_GEMINI]
+    if (modelID.includes("claude")) return [PROMPT_ANTHROPIC]
+    return [PROMPT_ANTHROPIC_WITHOUT_TODO]
   }
 
   export async function environment() {
@@ -53,33 +60,28 @@ export namespace SystemPrompt {
   export async function custom() {
     const { cwd, root } = App.info().path
     const config = await Config.get()
-    const found = []
+    const paths = new Set<string>()
+
     for (const item of CUSTOM_FILES) {
       const matches = await Filesystem.findUp(item, cwd, root)
-      found.push(...matches.map((x) => Bun.file(x).text()))
+      matches.forEach((path) => paths.add(path))
     }
-    found.push(
-      Bun.file(path.join(Global.Path.config, "AGENTS.md"))
-        .text()
-        .catch(() => ""),
-    )
-    found.push(
-      Bun.file(path.join(os.homedir(), ".claude", "CLAUDE.md"))
-        .text()
-        .catch(() => ""),
-    )
+
+    paths.add(path.join(Global.Path.config, "AGENTS.md"))
+    paths.add(path.join(os.homedir(), ".claude", "CLAUDE.md"))
 
     if (config.instructions) {
       for (const instruction of config.instructions) {
-        try {
-          const matches = await Filesystem.globUp(instruction, cwd, root)
-          found.push(...matches.map((x) => Bun.file(x).text()))
-        } catch {
-          continue // Skip invalid glob patterns
-        }
+        const matches = await Filesystem.globUp(instruction, cwd, root).catch(() => [])
+        matches.forEach((path) => paths.add(path))
       }
     }
 
+    const found = Array.from(paths).map((p) =>
+      Bun.file(p)
+        .text()
+        .catch(() => ""),
+    )
     return Promise.all(found).then((result) => result.filter(Boolean))
   }
 

packages/opencode/src/snapshot/index.ts

@@ -2,27 +2,31 @@ import { App } from "../app/app"
 import { $ } from "bun"
 import path from "path"
 import fs from "fs/promises"
-import { Ripgrep } from "../file/ripgrep"
 import { Log } from "../util/log"
+import { Global } from "../global"
+import { z } from "zod"
 
 export namespace Snapshot {
   const log = Log.create({ service: "snapshot" })
 
-  export async function create(sessionID: string) {
-    log.info("creating snapshot")
+  export function init() {
+    Array.fromAsync(
+      new Bun.Glob("**/snapshot").scan({
+        absolute: true,
+        onlyFiles: false,
+        cwd: Global.Path.data,
+      }),
+    ).then((files) => {
+      for (const file of files) {
+        fs.rmdir(file, { recursive: true })
+      }
+    })
+  }
+
+  export async function track() {
     const app = App.info()
-
-    // not a git repo, check if too big to snapshot
-    if (!app.git) {
-      const files = await Ripgrep.files({
-        cwd: app.path.cwd,
-        limit: 1000,
-      })
-      log.info("found files", { count: files.length })
-      if (files.length >= 1000) return
-    }
-
-    const git = gitdir(sessionID)
+    if (!app.git) return
+    const git = gitdir()
     if (await fs.mkdir(git, { recursive: true })) {
       await $`git init`
         .env({
@@ -34,35 +38,71 @@ export namespace Snapshot {
         .nothrow()
       log.info("initialized")
     }
-
     await $`git --git-dir ${git} add .`.quiet().cwd(app.path.cwd).nothrow()
-    log.info("added files")
-
-    const result = await $`git --git-dir ${git} commit -m "snapshot" --author="opencode <mail@opencode.ai>"`
-      .quiet()
-      .cwd(app.path.cwd)
-      .nothrow()
-
-    const match = result.stdout.toString().match(/\[.+ ([a-f0-9]+)\]/)
-    if (!match) return
-    return match![1]
+    const hash = await $`git --git-dir ${git} write-tree`.quiet().cwd(app.path.cwd).nothrow().text()
+    return hash.trim()
   }
 
-  export async function restore(sessionID: string, snapshot: string) {
+  export const Patch = z.object({
+    hash: z.string(),
+    files: z.string().array(),
+  })
+  export type Patch = z.infer<typeof Patch>
+
+  export async function patch(hash: string): Promise<Patch> {
+    const app = App.info()
+    const git = gitdir()
+    await $`git --git-dir ${git} add .`.quiet().cwd(app.path.cwd).nothrow()
+    const files = await $`git --git-dir ${git} diff --name-only ${hash} -- .`.cwd(app.path.cwd).text()
+    return {
+      hash,
+      files: files
+        .trim()
+        .split("\n")
+        .map((x) => x.trim())
+        .filter(Boolean)
+        .map((x) => path.join(app.path.cwd, x)),
+    }
+  }
+
+  export async function restore(snapshot: string) {
     log.info("restore", { commit: snapshot })
     const app = App.info()
-    const git = gitdir(sessionID)
-    await $`git --git-dir=${git} checkout ${snapshot} --force`.quiet().cwd(app.path.root)
+    const git = gitdir()
+    await $`git --git-dir=${git} read-tree ${snapshot} && git --git-dir=${git} checkout-index -a -f`
+      .quiet()
+      .cwd(app.path.root)
   }
 
-  export async function diff(sessionID: string, commit: string) {
-    const git = gitdir(sessionID)
-    const result = await $`git --git-dir=${git} diff -R ${commit}`.quiet().cwd(App.info().path.root)
-    return result.stdout.toString("utf8")
+  export async function revert(patches: Patch[]) {
+    const files = new Set<string>()
+    const git = gitdir()
+    for (const item of patches) {
+      for (const file of item.files) {
+        if (files.has(file)) continue
+        log.info("reverting", { file, hash: item.hash })
+        const result = await $`git --git-dir=${git} checkout ${item.hash} -- ${file}`
+          .quiet()
+          .cwd(App.info().path.root)
+          .nothrow()
+        if (result.exitCode !== 0) {
+          log.info("file not found in history, deleting", { file })
+          await fs.unlink(file).catch(() => {})
+        }
+        files.add(file)
+      }
+    }
   }
 
-  function gitdir(sessionID: string) {
+  export async function diff(hash: string) {
     const app = App.info()
-    return path.join(app.path.data, "snapshot", sessionID)
+    const git = gitdir()
+    const result = await $`git --git-dir=${git} diff ${hash} -- .`.quiet().cwd(app.path.root).text()
+    return result.trim()
+  }
+
+  function gitdir() {
+    const app = App.info()
+    return path.join(app.path.data, "snapshots")
   }
 }

packages/opencode/src/storage/storage.ts

@@ -72,6 +72,22 @@ export namespace Storage {
         } catch (e) {}
       }
     },
+    async (dir: string) => {
+      const files = new Bun.Glob("session/message/*/*.json").scanSync({
+        cwd: dir,
+        absolute: true,
+      })
+      for (const file of files) {
+        try {
+          const content = await Bun.file(file).json()
+          if (content.role === "assistant" && !content.mode) {
+            log.info("adding mode field to message", { file })
+            content.mode = "build"
+            await Bun.write(file, JSON.stringify(content, null, 2))
+          }
+        } catch (e) {}
+      }
+    },
   ]
 
   const state = App.state("storage", async () => {

packages/opencode/src/tool/bash.ts

@@ -1,18 +1,36 @@
 import { z } from "zod"
+import { exec } from "child_process"
+import { text } from "stream/consumers"
 import { Tool } from "./tool"
 import DESCRIPTION from "./bash.txt"
 import { App } from "../app/app"
+import { Permission } from "../permission"
+import { Config } from "../config/config"
+import { Filesystem } from "../util/filesystem"
+import { lazy } from "../util/lazy"
+import { Log } from "../util/log"
+import { Wildcard } from "../util/wildcard"
+import { $ } from "bun"
 
 const MAX_OUTPUT_LENGTH = 30000
 const DEFAULT_TIMEOUT = 1 * 60 * 1000
 const MAX_TIMEOUT = 10 * 60 * 1000
 
-export const BashTool = Tool.define({
-  id: "bash",
+const log = Log.create({ service: "bash-tool" })
+
+const parser = lazy(async () => {
+  const { default: Parser } = await import("tree-sitter")
+  const Bash = await import("tree-sitter-bash")
+  const p = new Parser()
+  p.setLanguage(Bash.language as any)
+  return p
+})
+
+export const BashTool = Tool.define("bash", {
   description: DESCRIPTION,
   parameters: z.object({
     command: z.string().describe("The command to execute"),
-    timeout: z.number().min(0).max(MAX_TIMEOUT).describe("Optional timeout in milliseconds").optional(),
+    timeout: z.number().describe("Optional timeout in milliseconds").optional(),
     description: z
       .string()
       .describe(
@@ -21,19 +39,103 @@ export const BashTool = Tool.define({
   }),
   async execute(params, ctx) {
     const timeout = Math.min(params.timeout ?? DEFAULT_TIMEOUT, MAX_TIMEOUT)
+    const app = App.info()
+    const cfg = await Config.get()
+    const tree = await parser().then((p) => p.parse(params.command))
+    const permissions = (() => {
+      const value = cfg.permission?.bash
+      if (!value)
+        return {
+          "*": "allow",
+        }
+      if (typeof value === "string")
+        return {
+          "*": value,
+        }
+      return value
+    })()
 
-    const process = Bun.spawn({
-      cmd: ["bash", "-c", params.command],
-      cwd: App.info().path.cwd,
-      maxBuffer: MAX_OUTPUT_LENGTH,
+    let needsAsk = false
+    for (const node of tree.rootNode.descendantsOfType("command")) {
+      const command = []
+      for (let i = 0; i < node.childCount; i++) {
+        const child = node.child(i)
+        if (!child) continue
+        if (
+          child.type !== "command_name" &&
+          child.type !== "word" &&
+          child.type !== "string" &&
+          child.type !== "raw_string" &&
+          child.type !== "concatenation"
+        ) {
+          continue
+        }
+        command.push(child.text)
+      }
+
+      // not an exhaustive list, but covers most common cases
+      if (["cd", "rm", "cp", "mv", "mkdir", "touch", "chmod", "chown"].includes(command[0])) {
+        for (const arg of command.slice(1)) {
+          if (arg.startsWith("-") || (command[0] === "chmod" && arg.startsWith("+"))) continue
+          const resolved = await $`realpath ${arg}`
+            .quiet()
+            .nothrow()
+            .text()
+            .then((x) => x.trim())
+          log.info("resolved path", { arg, resolved })
+          if (resolved && !Filesystem.contains(app.path.cwd, resolved)) {
+            throw new Error(
+              `This command references paths outside of ${app.path.cwd} so it is not allowed to be executed.`,
+            )
+          }
+        }
+      }
+
+      // always allow cd if it passes above check
+      if (!needsAsk && command[0] !== "cd") {
+        const ask = (() => {
+          for (const [pattern, value] of Object.entries(permissions)) {
+            const match = Wildcard.match(node.text, pattern)
+            log.info("checking", { text: node.text.trim(), pattern, match })
+            if (match) return value
+          }
+          return "ask"
+        })()
+        if (ask === "ask") needsAsk = true
+      }
+    }
+
+    if (needsAsk) {
+      await Permission.ask({
+        type: "bash",
+        sessionID: ctx.sessionID,
+        messageID: ctx.messageID,
+        callID: ctx.callID,
+        title: params.command,
+        metadata: {
+          command: params.command,
+        },
+      })
+    }
+
+    const process = exec(params.command, {
+      cwd: app.path.cwd,
       signal: ctx.abort,
-      timeout: timeout,
-      stdout: "pipe",
-      stderr: "pipe",
+      maxBuffer: MAX_OUTPUT_LENGTH,
+      timeout,
     })
-    await process.exited
-    const stdout = await new Response(process.stdout).text()
-    const stderr = await new Response(process.stderr).text()
+
+    const stdoutPromise = text(process.stdout!)
+    const stderrPromise = text(process.stderr!)
+
+    await new Promise<void>((resolve) => {
+      process.on("close", () => {
+        resolve()
+      })
+    })
+
+    const stdout = await stdoutPromise
+    const stderr = await stderrPromise
 
     return {
       title: params.command,

packages/opencode/src/tool/edit.ts

@@ -1,6 +1,7 @@
 // the approaches in this edit tool are sourced from
 // https://github.com/cline/cline/blob/main/evals/diff-edits/diff-apply/diff-06-23-25.ts
 // https://github.com/google-gemini/gemini-cli/blob/main/packages/core/src/utils/editCorrector.ts
+// https://github.com/cline/cline/blob/main/evals/diff-edits/diff-apply/diff-06-26-25.ts
 
 import { z } from "zod"
 import * as path from "path"
@@ -13,9 +14,10 @@ import { App } from "../app/app"
 import { File } from "../file"
 import { Bus } from "../bus"
 import { FileTime } from "../file/time"
+import { Config } from "../config/config"
+import { Filesystem } from "../util/filesystem"
 
-export const EditTool = Tool.define({
-  id: "edit",
+export const EditTool = Tool.define("edit", {
   description: DESCRIPTION,
   parameters: z.object({
     filePath: z.string().describe("The absolute path to the file to modify"),
@@ -33,60 +35,85 @@ export const EditTool = Tool.define({
     }
 
     const app = App.info()
-    const filepath = path.isAbsolute(params.filePath) ? params.filePath : path.join(app.path.cwd, params.filePath)
-
-    await Permission.ask({
-      id: "edit",
-      sessionID: ctx.sessionID,
-      title: "Edit this file: " + filepath,
-      metadata: {
-        filePath: filepath,
-        oldString: params.oldString,
-        newString: params.newString,
-      },
-    })
+    const filePath = path.isAbsolute(params.filePath) ? params.filePath : path.join(app.path.cwd, params.filePath)
+    if (!Filesystem.contains(app.path.cwd, filePath)) {
+      throw new Error(`File ${filePath} is not in the current working directory`)
+    }
 
+    const cfg = await Config.get()
+    let diff = ""
     let contentOld = ""
     let contentNew = ""
     await (async () => {
       if (params.oldString === "") {
         contentNew = params.newString
-        await Bun.write(filepath, params.newString)
+        diff = trimDiff(createTwoFilesPatch(filePath, filePath, contentOld, contentNew))
+        if (cfg.permission?.edit === "ask") {
+          await Permission.ask({
+            type: "edit",
+            sessionID: ctx.sessionID,
+            messageID: ctx.messageID,
+            callID: ctx.callID,
+            title: "Edit this file: " + filePath,
+            metadata: {
+              filePath,
+              diff,
+            },
+          })
+        }
+        await Bun.write(filePath, params.newString)
         await Bus.publish(File.Event.Edited, {
-          file: filepath,
+          file: filePath,
         })
         return
       }
 
-      const file = Bun.file(filepath)
+      const file = Bun.file(filePath)
       const stats = await file.stat().catch(() => {})
-      if (!stats) throw new Error(`File ${filepath} not found`)
-      if (stats.isDirectory()) throw new Error(`Path is a directory, not a file: ${filepath}`)
-      await FileTime.assert(ctx.sessionID, filepath)
+      if (!stats) throw new Error(`File ${filePath} not found`)
+      if (stats.isDirectory()) throw new Error(`Path is a directory, not a file: ${filePath}`)
+      await FileTime.assert(ctx.sessionID, filePath)
       contentOld = await file.text()
-
       contentNew = replace(contentOld, params.oldString, params.newString, params.replaceAll)
+
+      diff = trimDiff(createTwoFilesPatch(filePath, filePath, contentOld, contentNew))
+      if (cfg.permission?.edit === "ask") {
+        await Permission.ask({
+          type: "edit",
+          sessionID: ctx.sessionID,
+          messageID: ctx.messageID,
+          callID: ctx.callID,
+          title: "Edit this file: " + filePath,
+          metadata: {
+            filePath,
+            diff,
+          },
+        })
+      }
+
       await file.write(contentNew)
       await Bus.publish(File.Event.Edited, {
-        file: filepath,
+        file: filePath,
       })
       contentNew = await file.text()
+      diff = trimDiff(createTwoFilesPatch(filePath, filePath, contentOld, contentNew))
     })()
 
-    const diff = trimDiff(createTwoFilesPatch(filepath, filepath, contentOld, contentNew))
-
-    FileTime.read(ctx.sessionID, filepath)
+    FileTime.read(ctx.sessionID, filePath)
 
     let output = ""
-    await LSP.touchFile(filepath, true)
+    await LSP.touchFile(filePath, true)
     const diagnostics = await LSP.diagnostics()
     for (const [file, issues] of Object.entries(diagnostics)) {
       if (issues.length === 0) continue
-      if (file === filepath) {
+      if (file === filePath) {
         output += `\nThis file has errors, please fix\n<file_diagnostics>\n${issues.map(LSP.Diagnostic.pretty).join("\n")}\n</file_diagnostics>\n`
         continue
       }
-      output += `\n<project_diagnostics>\n${file}\n${issues.map(LSP.Diagnostic.pretty).join("\n")}\n</project_diagnostics>\n`
+      output += `\n<project_diagnostics>\n${file}\n${issues
+        .filter((item) => item.severity === 1)
+        .map(LSP.Diagnostic.pretty)
+        .join("\n")}\n</project_diagnostics>\n`
     }
 
     return {
@@ -94,7 +121,7 @@ export const EditTool = Tool.define({
         diagnostics,
         diff,
       },
-      title: `${path.relative(app.path.root, filepath)}`,
+      title: `${path.relative(app.path.root, filePath)}`,
       output,
     }
   },
@@ -102,6 +129,31 @@ export const EditTool = Tool.define({
 
 export type Replacer = (content: string, find: string) => Generator<string, void, unknown>
 
+// Similarity thresholds for block anchor fallback matching
+const SINGLE_CANDIDATE_SIMILARITY_THRESHOLD = 0.0
+const MULTIPLE_CANDIDATES_SIMILARITY_THRESHOLD = 0.3
+
+/**
+ * Levenshtein distance algorithm implementation
+ */
+function levenshtein(a: string, b: string): number {
+  // Handle empty strings
+  if (a === "" || b === "") {
+    return Math.max(a.length, b.length)
+  }
+  const matrix = Array.from({ length: a.length + 1 }, (_, i) =>
+    Array.from({ length: b.length + 1 }, (_, j) => (i === 0 ? j : j === 0 ? i : 0)),
+  )
+
+  for (let i = 1; i <= a.length; i++) {
+    for (let j = 1; j <= b.length; j++) {
+      const cost = a[i - 1] === b[j - 1] ? 0 : 1
+      matrix[i][j] = Math.min(matrix[i - 1][j] + 1, matrix[i][j - 1] + 1, matrix[i - 1][j - 1] + cost)
+    }
+  }
+  return matrix[a.length][b.length]
+}
+
 export const SimpleReplacer: Replacer = function* (_content, find) {
   yield find
 }
@@ -157,8 +209,10 @@ export const BlockAnchorReplacer: Replacer = function* (content, find) {
 
   const firstLineSearch = searchLines[0].trim()
   const lastLineSearch = searchLines[searchLines.length - 1].trim()
+  const searchBlockSize = searchLines.length
 
-  // Find blocks where first line matches the search first line
+  // Collect all candidate positions where both anchors match
+  const candidates: Array<{ startLine: number; endLine: number }> = []
   for (let i = 0; i < originalLines.length; i++) {
     if (originalLines[i].trim() !== firstLineSearch) {
       continue
@@ -167,25 +221,113 @@ export const BlockAnchorReplacer: Replacer = function* (content, find) {
     // Look for the matching last line after this first line
     for (let j = i + 2; j < originalLines.length; j++) {
       if (originalLines[j].trim() === lastLineSearch) {
-        // Found a potential block from i to j
-        let matchStartIndex = 0
-        for (let k = 0; k < i; k++) {
-          matchStartIndex += originalLines[k].length + 1
-        }
-
-        let matchEndIndex = matchStartIndex
-        for (let k = 0; k <= j - i; k++) {
-          matchEndIndex += originalLines[i + k].length
-          if (k < j - i) {
-            matchEndIndex += 1 // Add newline character except for the last line
-          }
-        }
-
-        yield content.substring(matchStartIndex, matchEndIndex)
+        candidates.push({ startLine: i, endLine: j })
         break // Only match the first occurrence of the last line
       }
     }
   }
+
+  // Return immediately if no candidates
+  if (candidates.length === 0) {
+    return
+  }
+
+  // Handle single candidate scenario (using relaxed threshold)
+  if (candidates.length === 1) {
+    const { startLine, endLine } = candidates[0]
+    const actualBlockSize = endLine - startLine + 1
+
+    let similarity = 0
+    let linesToCheck = Math.min(searchBlockSize - 2, actualBlockSize - 2) // Middle lines only
+
+    if (linesToCheck > 0) {
+      for (let j = 1; j < searchBlockSize - 1 && j < actualBlockSize - 1; j++) {
+        const originalLine = originalLines[startLine + j].trim()
+        const searchLine = searchLines[j].trim()
+        const maxLen = Math.max(originalLine.length, searchLine.length)
+        if (maxLen === 0) {
+          continue
+        }
+        const distance = levenshtein(originalLine, searchLine)
+        similarity += (1 - distance / maxLen) / linesToCheck
+
+        // Exit early when threshold is reached
+        if (similarity >= SINGLE_CANDIDATE_SIMILARITY_THRESHOLD) {
+          break
+        }
+      }
+    } else {
+      // No middle lines to compare, just accept based on anchors
+      similarity = 1.0
+    }
+
+    if (similarity >= SINGLE_CANDIDATE_SIMILARITY_THRESHOLD) {
+      let matchStartIndex = 0
+      for (let k = 0; k < startLine; k++) {
+        matchStartIndex += originalLines[k].length + 1
+      }
+      let matchEndIndex = matchStartIndex
+      for (let k = startLine; k <= endLine; k++) {
+        matchEndIndex += originalLines[k].length
+        if (k < endLine) {
+          matchEndIndex += 1 // Add newline character except for the last line
+        }
+      }
+      yield content.substring(matchStartIndex, matchEndIndex)
+    }
+    return
+  }
+
+  // Calculate similarity for multiple candidates
+  let bestMatch: { startLine: number; endLine: number } | null = null
+  let maxSimilarity = -1
+
+  for (const candidate of candidates) {
+    const { startLine, endLine } = candidate
+    const actualBlockSize = endLine - startLine + 1
+
+    let similarity = 0
+    let linesToCheck = Math.min(searchBlockSize - 2, actualBlockSize - 2) // Middle lines only
+
+    if (linesToCheck > 0) {
+      for (let j = 1; j < searchBlockSize - 1 && j < actualBlockSize - 1; j++) {
+        const originalLine = originalLines[startLine + j].trim()
+        const searchLine = searchLines[j].trim()
+        const maxLen = Math.max(originalLine.length, searchLine.length)
+        if (maxLen === 0) {
+          continue
+        }
+        const distance = levenshtein(originalLine, searchLine)
+        similarity += 1 - distance / maxLen
+      }
+      similarity /= linesToCheck // Average similarity
+    } else {
+      // No middle lines to compare, just accept based on anchors
+      similarity = 1.0
+    }
+
+    if (similarity > maxSimilarity) {
+      maxSimilarity = similarity
+      bestMatch = candidate
+    }
+  }
+
+  // Threshold judgment
+  if (maxSimilarity >= MULTIPLE_CANDIDATES_SIMILARITY_THRESHOLD && bestMatch) {
+    const { startLine, endLine } = bestMatch
+    let matchStartIndex = 0
+    for (let k = 0; k < startLine; k++) {
+      matchStartIndex += originalLines[k].length + 1
+    }
+    let matchEndIndex = matchStartIndex
+    for (let k = startLine; k <= endLine; k++) {
+      matchEndIndex += originalLines[k].length
+      if (k < endLine) {
+        matchEndIndex += 1
+      }
+    }
+    yield content.substring(matchStartIndex, matchEndIndex)
+  }
 }
 
 export const WhitespaceNormalizedReplacer: Replacer = function* (content, find) {
@@ -198,23 +340,23 @@ export const WhitespaceNormalizedReplacer: Replacer = function* (content, find)
     const line = lines[i]
     if (normalizeWhitespace(line) === normalizedFind) {
       yield line
-    }
-
-    // Also check for substring matches within lines
-    const normalizedLine = normalizeWhitespace(line)
-    if (normalizedLine.includes(normalizedFind)) {
-      // Find the actual substring in the original line that matches
-      const words = find.trim().split(/\s+/)
-      if (words.length > 0) {
-        const pattern = words.map((word) => word.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")).join("\\s+")
-        try {
-          const regex = new RegExp(pattern)
-          const match = line.match(regex)
-          if (match) {
-            yield match[0]
+    } else {
+      // Only check for substring matches if the full line doesn't match
+      const normalizedLine = normalizeWhitespace(line)
+      if (normalizedLine.includes(normalizedFind)) {
+        // Find the actual substring in the original line that matches
+        const words = find.trim().split(/\s+/)
+        if (words.length > 0) {
+          const pattern = words.map((word) => word.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")).join("\\s+")
+          try {
+            const regex = new RegExp(pattern)
+            const match = line.match(regex)
+            if (match) {
+              yield match[0]
+            }
+          } catch (e) {
+            // Invalid regex pattern, skip
           }
-        } catch (e) {
-          // Invalid regex pattern, skip
         }
       }
     }
@@ -454,7 +596,7 @@ export function replace(content: string, oldString: string, newString: string, r
     BlockAnchorReplacer,
     WhitespaceNormalizedReplacer,
     IndentationFlexibleReplacer,
-    // EscapeNormalizedReplacer,
+    EscapeNormalizedReplacer,
     // TrimmedBoundaryReplacer,
     // ContextAwareReplacer,
     // MultiOccurrenceReplacer,

packages/opencode/src/tool/glob.ts

@@ -5,8 +5,7 @@ import { App } from "../app/app"
 import DESCRIPTION from "./glob.txt"
 import { Ripgrep } from "../file/ripgrep"
 
-export const GlobTool = Tool.define({
-  id: "glob",
+export const GlobTool = Tool.define("glob", {
   description: DESCRIPTION,
   parameters: z.object({
     pattern: z.string().describe("The glob pattern to match files against"),

packages/opencode/src/tool/grep.ts

@@ -5,8 +5,7 @@ import { Ripgrep } from "../file/ripgrep"
 
 import DESCRIPTION from "./grep.txt"
 
-export const GrepTool = Tool.define({
-  id: "grep",
+export const GrepTool = Tool.define("grep", {
   description: DESCRIPTION,
   parameters: z.object({
     pattern: z.string().describe("The regex pattern to search for in file contents"),
@@ -55,12 +54,11 @@ export const GrepTool = Tool.define({
     for (const line of lines) {
       if (!line) continue
 
-      const parts = line.split(":", 3)
-      if (parts.length < 3) continue
+      const [filePath, lineNumStr, ...lineTextParts] = line.split(":")
+      if (!filePath || !lineNumStr || lineTextParts.length === 0) continue
 
-      const filePath = parts[0]
-      const lineNum = parseInt(parts[1], 10)
-      const lineText = parts[2]
+      const lineNum = parseInt(lineNumStr, 10)
+      const lineText = lineTextParts.join(":")
 
       const file = Bun.file(filePath)
       const stats = await file.stat().catch(() => null)

packages/opencode/src/tool/invalid.ts

@@ -0,0 +1,17 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+
+export const InvalidTool = Tool.define("invalid", {
+  description: "Do not use",
+  parameters: z.object({
+    tool: z.string(),
+    error: z.string(),
+  }),
+  async execute(params) {
+    return {
+      title: "Invalid Tool",
+      output: `The arguments provided to the tool are invalid: ${params.error}`,
+      metadata: {},
+    }
+  },
+})

packages/opencode/src/tool/ls.ts

@@ -33,8 +33,7 @@ export const IGNORE_PATTERNS = [
 
 const LIMIT = 100
 
-export const ListTool = Tool.define({
-  id: "list",
+export const ListTool = Tool.define("list", {
   description: DESCRIPTION,
   parameters: z.object({
     path: z.string().describe("The absolute path to the directory to list (must be absolute, not relative)").optional(),

packages/opencode/src/tool/lsp-diagnostics.ts

@@ -5,8 +5,7 @@ import { LSP } from "../lsp"
 import { App } from "../app/app"
 import DESCRIPTION from "./lsp-diagnostics.txt"
 
-export const LspDiagnosticTool = Tool.define({
-  id: "lsp_diagnostics",
+export const LspDiagnosticTool = Tool.define("lsp_diagnostics", {
   description: DESCRIPTION,
   parameters: z.object({
     path: z.string().describe("The path to the file to get diagnostics."),

packages/opencode/src/tool/lsp-hover.ts

@@ -5,8 +5,7 @@ import { LSP } from "../lsp"
 import { App } from "../app/app"
 import DESCRIPTION from "./lsp-hover.txt"
 
-export const LspHoverTool = Tool.define({
-  id: "lsp_hover",
+export const LspHoverTool = Tool.define("lsp_hover", {
   description: DESCRIPTION,
   parameters: z.object({
     file: z.string().describe("The path to the file to get diagnostics."),

packages/opencode/src/tool/multiedit.ts

@@ -5,17 +5,26 @@ import DESCRIPTION from "./multiedit.txt"
 import path from "path"
 import { App } from "../app/app"
 
-export const MultiEditTool = Tool.define({
-  id: "multiedit",
+export const MultiEditTool = Tool.define("multiedit", {
   description: DESCRIPTION,
   parameters: z.object({
     filePath: z.string().describe("The absolute path to the file to modify"),
-    edits: z.array(EditTool.parameters).describe("Array of edit operations to perform sequentially on the file"),
+    edits: z
+      .array(
+        z.object({
+          filePath: z.string().describe("The absolute path to the file to modify"),
+          oldString: z.string().describe("The text to replace"),
+          newString: z.string().describe("The text to replace it with (must be different from oldString)"),
+          replaceAll: z.boolean().optional().describe("Replace all occurrences of oldString (default false)"),
+        }),
+      )
+      .describe("Array of edit operations to perform sequentially on the file"),
   }),
   async execute(params, ctx) {
+    const tool = await EditTool.init()
     const results = []
     for (const [, edit] of params.edits.entries()) {
-      const result = await EditTool.execute(
+      const result = await tool.execute(
         {
           filePath: params.filePath,
           oldString: edit.oldString,

packages/opencode/src/tool/patch.ts

@@ -210,8 +210,7 @@ async function applyCommit(
   }
 }
 
-export const PatchTool = Tool.define({
-  id: "patch",
+export const PatchTool = Tool.define("patch", {
   description: DESCRIPTION,
   parameters: PatchParams,
   execute: async (params, ctx) => {

packages/opencode/src/tool/read.ts

@@ -6,29 +6,32 @@ import { LSP } from "../lsp"
 import { FileTime } from "../file/time"
 import DESCRIPTION from "./read.txt"
 import { App } from "../app/app"
+import { Filesystem } from "../util/filesystem"
 
-const MAX_READ_SIZE = 250 * 1024
 const DEFAULT_READ_LIMIT = 2000
 const MAX_LINE_LENGTH = 2000
 
-export const ReadTool = Tool.define({
-  id: "read",
+export const ReadTool = Tool.define("read", {
   description: DESCRIPTION,
   parameters: z.object({
     filePath: z.string().describe("The path to the file to read"),
-    offset: z.number().describe("The line number to start reading from (0-based)").optional(),
-    limit: z.number().describe("The number of lines to read (defaults to 2000)").optional(),
+    offset: z.coerce.number().describe("The line number to start reading from (0-based)").optional(),
+    limit: z.coerce.number().describe("The number of lines to read (defaults to 2000)").optional(),
   }),
   async execute(params, ctx) {
-    let filePath = params.filePath
-    if (!path.isAbsolute(filePath)) {
-      filePath = path.join(process.cwd(), filePath)
+    let filepath = params.filePath
+    if (!path.isAbsolute(filepath)) {
+      filepath = path.join(process.cwd(), filepath)
+    }
+    const app = App.info()
+    if (!Filesystem.contains(app.path.cwd, filepath)) {
+      throw new Error(`File ${filepath} is not in the current working directory`)
     }
 
-    const file = Bun.file(filePath)
+    const file = Bun.file(filepath)
     if (!(await file.exists())) {
-      const dir = path.dirname(filePath)
-      const base = path.basename(filePath)
+      const dir = path.dirname(filepath)
+      const base = path.basename(filepath)
 
       const dirEntries = fs.readdirSync(dir)
       const suggestions = dirEntries
@@ -40,19 +43,18 @@ export const ReadTool = Tool.define({
         .slice(0, 3)
 
       if (suggestions.length > 0) {
-        throw new Error(`File not found: ${filePath}\n\nDid you mean one of these?\n${suggestions.join("\n")}`)
+        throw new Error(`File not found: ${filepath}\n\nDid you mean one of these?\n${suggestions.join("\n")}`)
       }
 
-      throw new Error(`File not found: ${filePath}`)
+      throw new Error(`File not found: ${filepath}`)
     }
-    const stats = await file.stat()
 
-    if (stats.size > MAX_READ_SIZE)
-      throw new Error(`File is too large (${stats.size} bytes). Maximum size is ${MAX_READ_SIZE} bytes`)
     const limit = params.limit ?? DEFAULT_READ_LIMIT
     const offset = params.offset || 0
-    const isImage = isImageFile(filePath)
+    const isImage = isImageFile(filepath)
     if (isImage) throw new Error(`This is an image file of type: ${isImage}\nUse a different tool to process images`)
+    const isBinary = await isBinaryFile(file)
+    if (isBinary) throw new Error(`Cannot read binary file: ${filepath}`)
     const lines = await file.text().then((text) => text.split("\n"))
     const raw = lines.slice(offset, offset + limit).map((line) => {
       return line.length > MAX_LINE_LENGTH ? line.substring(0, MAX_LINE_LENGTH) + "..." : line
@@ -71,11 +73,11 @@ export const ReadTool = Tool.define({
     output += "\n</file>"
 
     // just warms the lsp client
-    LSP.touchFile(filePath, false)
-    FileTime.read(ctx.sessionID, filePath)
+    LSP.touchFile(filepath, false)
+    FileTime.read(ctx.sessionID, filepath)
 
     return {
-      title: path.relative(App.info().path.root, filePath),
+      title: path.relative(App.info().path.root, filepath),
       output,
       metadata: {
         preview,
@@ -104,3 +106,14 @@ function isImageFile(filePath: string): string | false {
       return false
   }
 }
+
+async function isBinaryFile(file: Bun.BunFile): Promise<boolean> {
+  const buffer = await file.arrayBuffer()
+  const bytes = new Uint8Array(buffer.slice(0, 512)) // Check first 512 bytes
+
+  for (let i = 0; i < bytes.length; i++) {
+    if (bytes[i] === 0) return true // Null byte indicates binary
+  }
+
+  return false
+}

packages/opencode/src/tool/registry.ts

@@ -0,0 +1,179 @@
+import z from "zod"
+import { BashTool } from "./bash"
+import { EditTool } from "./edit"
+import { GlobTool } from "./glob"
+import { GrepTool } from "./grep"
+import { ListTool } from "./ls"
+import { PatchTool } from "./patch"
+import { ReadTool } from "./read"
+import { TaskTool } from "./task"
+import { TodoWriteTool, TodoReadTool } from "./todo"
+import { WebFetchTool } from "./webfetch"
+import { WriteTool } from "./write"
+import { InvalidTool } from "./invalid"
+
+export namespace ToolRegistry {
+  const ALL = [
+    InvalidTool,
+    BashTool,
+    EditTool,
+    WebFetchTool,
+    GlobTool,
+    GrepTool,
+    ListTool,
+    PatchTool,
+    ReadTool,
+    WriteTool,
+    TodoWriteTool,
+    TodoReadTool,
+    TaskTool,
+  ]
+
+  export function ids() {
+    return ALL.map((t) => t.id)
+  }
+
+  export async function tools(providerID: string, _modelID: string) {
+    const result = await Promise.all(
+      ALL.map(async (t) => ({
+        id: t.id,
+        ...(await t.init()),
+      })),
+    )
+
+    if (providerID === "openai") {
+      return result.map((t) => ({
+        ...t,
+        parameters: optionalToNullable(t.parameters),
+      }))
+    }
+
+    if (providerID === "azure") {
+      return result.map((t) => ({
+        ...t,
+        parameters: optionalToNullable(t.parameters),
+      }))
+    }
+
+    if (providerID === "google") {
+      return result.map((t) => ({
+        ...t,
+        parameters: sanitizeGeminiParameters(t.parameters),
+      }))
+    }
+
+    return result
+  }
+
+  export function enabled(_providerID: string, modelID: string): Record<string, boolean> {
+    if (modelID.toLowerCase().includes("claude")) {
+      return {
+        patch: false,
+      }
+    }
+
+    if (
+      modelID.toLowerCase().includes("qwen") ||
+      modelID.includes("gpt-") ||
+      modelID.includes("o1") ||
+      modelID.includes("o3") ||
+      modelID.includes("codex")
+    ) {
+      return {
+        patch: false,
+        todowrite: false,
+        todoread: false,
+      }
+    }
+    return {}
+  }
+
+  function sanitizeGeminiParameters(schema: z.ZodTypeAny, visited = new Set()): z.ZodTypeAny {
+    if (!schema || visited.has(schema)) {
+      return schema
+    }
+    visited.add(schema)
+
+    if (schema instanceof z.ZodDefault) {
+      const innerSchema = schema.removeDefault()
+      // Handle Gemini's incompatibility with `default` on `anyOf` (unions).
+      if (innerSchema instanceof z.ZodUnion) {
+        // The schema was `z.union(...).default(...)`, which is not allowed.
+        // We strip the default and return the sanitized union.
+        return sanitizeGeminiParameters(innerSchema, visited)
+      }
+      // Otherwise, the default is on a regular type, which is allowed.
+      // We recurse on the inner type and then re-apply the default.
+      return sanitizeGeminiParameters(innerSchema, visited).default(schema._def.defaultValue())
+    }
+
+    if (schema instanceof z.ZodOptional) {
+      return z.optional(sanitizeGeminiParameters(schema.unwrap(), visited))
+    }
+
+    if (schema instanceof z.ZodObject) {
+      const newShape: Record<string, z.ZodTypeAny> = {}
+      for (const [key, value] of Object.entries(schema.shape)) {
+        newShape[key] = sanitizeGeminiParameters(value as z.ZodTypeAny, visited)
+      }
+      return z.object(newShape)
+    }
+
+    if (schema instanceof z.ZodArray) {
+      return z.array(sanitizeGeminiParameters(schema.element, visited))
+    }
+
+    if (schema instanceof z.ZodUnion) {
+      // This schema corresponds to `anyOf` in JSON Schema.
+      // We recursively sanitize each option in the union.
+      const sanitizedOptions = schema.options.map((option: z.ZodTypeAny) => sanitizeGeminiParameters(option, visited))
+      return z.union(sanitizedOptions as [z.ZodTypeAny, z.ZodTypeAny, ...z.ZodTypeAny[]])
+    }
+
+    if (schema instanceof z.ZodString) {
+      const newSchema = z.string({ description: schema.description })
+      const safeChecks = ["min", "max", "length", "regex", "startsWith", "endsWith", "includes", "trim"]
+      // rome-ignore lint/suspicious/noExplicitAny: <explanation>
+      ;(newSchema._def as any).checks = (schema._def as z.ZodStringDef).checks.filter((check) =>
+        safeChecks.includes(check.kind),
+      )
+      return newSchema
+    }
+
+    return schema
+  }
+
+  function optionalToNullable(schema: z.ZodTypeAny): z.ZodTypeAny {
+    if (schema instanceof z.ZodObject) {
+      const shape = schema.shape
+      const newShape: Record<string, z.ZodTypeAny> = {}
+
+      for (const [key, value] of Object.entries(shape)) {
+        const zodValue = value as z.ZodTypeAny
+        if (zodValue instanceof z.ZodOptional) {
+          newShape[key] = zodValue.unwrap().nullable()
+        } else {
+          newShape[key] = optionalToNullable(zodValue)
+        }
+      }
+
+      return z.object(newShape)
+    }
+
+    if (schema instanceof z.ZodArray) {
+      return z.array(optionalToNullable(schema.element))
+    }
+
+    if (schema instanceof z.ZodUnion) {
+      return z.union(
+        schema.options.map((option: z.ZodTypeAny) => optionalToNullable(option)) as [
+          z.ZodTypeAny,
+          z.ZodTypeAny,
+          ...z.ZodTypeAny[],
+        ],
+      )
+    }
+
+    return schema
+  }
+}

packages/opencode/src/tool/task.ts

@@ -5,59 +5,73 @@ import { Session } from "../session"
 import { Bus } from "../bus"
 import { MessageV2 } from "../session/message-v2"
 import { Identifier } from "../id/id"
+import { Agent } from "../agent/agent"
 
-export const TaskTool = Tool.define({
-  id: "task",
-  description: DESCRIPTION,
-  parameters: z.object({
-    description: z.string().describe("A short (3-5 words) description of the task"),
-    prompt: z.string().describe("The task for the agent to perform"),
-  }),
-  async execute(params, ctx) {
-    const session = await Session.create(ctx.sessionID)
-    const msg = await Session.getMessage(ctx.sessionID, ctx.messageID)
-    if (msg.role !== "assistant") throw new Error("Not an assistant message")
+export const TaskTool = Tool.define("task", async () => {
+  const agents = await Agent.list()
+  const description = DESCRIPTION.replace("{agents}", agents.map((a) => `- ${a.name}: ${a.description}`).join("\n"))
+  return {
+    description,
+    parameters: z.object({
+      description: z.string().describe("A short (3-5 words) description of the task"),
+      prompt: z.string().describe("The task for the agent to perform"),
+      subagent_type: z.string().describe("The type of specialized agent to use for this task"),
+    }),
+    async execute(params, ctx) {
+      const session = await Session.create(ctx.sessionID)
+      const msg = await Session.getMessage(ctx.sessionID, ctx.messageID)
+      if (msg.info.role !== "assistant") throw new Error("Not an assistant message")
+      const agent = await Agent.get(params.subagent_type)
+      const messageID = Identifier.ascending("message")
+      const parts: Record<string, MessageV2.ToolPart> = {}
+      const unsub = Bus.subscribe(MessageV2.Event.PartUpdated, async (evt) => {
+        if (evt.properties.part.sessionID !== session.id) return
+        if (evt.properties.part.messageID === messageID) return
+        if (evt.properties.part.type !== "tool") return
+        parts[evt.properties.part.id] = evt.properties.part
+        ctx.metadata({
+          title: params.description,
+          metadata: {
+            summary: Object.values(parts).sort((a, b) => a.id?.localeCompare(b.id)),
+          },
+        })
+      })
 
-    const messageID = Identifier.ascending("message")
-    const parts: Record<string, MessageV2.ToolPart> = {}
-    const unsub = Bus.subscribe(MessageV2.Event.PartUpdated, async (evt) => {
-      if (evt.properties.part.sessionID !== session.id) return
-      if (evt.properties.part.messageID === messageID) return
-      if (evt.properties.part.type !== "tool") return
-      parts[evt.properties.part.id] = evt.properties.part
-      ctx.metadata({
+      const model = agent.model ?? {
+        modelID: msg.info.modelID,
+        providerID: msg.info.providerID,
+      }
+
+      ctx.abort.addEventListener("abort", () => {
+        Session.abort(session.id)
+      })
+      const result = await Session.chat({
+        messageID,
+        sessionID: session.id,
+        modelID: model.modelID,
+        providerID: model.providerID,
+        mode: msg.info.mode,
+        system: agent.prompt,
+        tools: {
+          ...agent.tools,
+          task: false,
+        },
+        parts: [
+          {
+            id: Identifier.ascending("part"),
+            type: "text",
+            text: params.prompt,
+          },
+        ],
+      })
+      unsub()
+      return {
         title: params.description,
         metadata: {
-          summary: Object.values(parts).sort((a, b) => a.id?.localeCompare(b.id)),
+          summary: result.parts.filter((x) => x.type === "tool"),
         },
-      })
-    })
-
-    ctx.abort.addEventListener("abort", () => {
-      Session.abort(session.id)
-    })
-    const result = await Session.chat({
-      messageID,
-      sessionID: session.id,
-      modelID: msg.modelID,
-      providerID: msg.providerID,
-      parts: [
-        {
-          id: Identifier.ascending("part"),
-          messageID,
-          sessionID: session.id,
-          type: "text",
-          text: params.prompt,
-        },
-      ],
-    })
-    unsub()
-    return {
-      title: params.description,
-      metadata: {
-        summary: result.parts.filter((x) => x.type === "tool"),
-      },
-      output: result.parts.findLast((x) => x.type === "text")!.text,
-    }
-  },
+        output: result.parts.findLast((x) => x.type === "text")?.text ?? "",
+      }
+    },
+  }
 })

packages/opencode/src/tool/task.txt

@@ -1,12 +1,19 @@
-Launch a new agent that has access to the following tools: Bash, Glob, Grep, LS, Read, Edit, MultiEdit, Write, NotebookRead, NotebookEdit, WebFetch, TodoRead, TodoWrite, WebSearch. When you are searching for a keyword or file and are not confident that you will find the right match in the first few tries, use the Agent tool to perform the search for you.
+Launch a new agent to handle complex, multi-step tasks autonomously. 
+
+Available agent types and the tools they have access to:
+{agents}
+
+When using the Task tool, you must specify a subagent_type parameter to select which agent type to use.
 
 When to use the Agent tool:
-- If you are searching for a keyword like "config" or "logger", or for questions like "which file does X?", the Agent tool is strongly recommended
+- When you are instructed to execute custom slash commands. Use the Agent tool with the slash command invocation as the entire prompt. The slash command can take arguments. For example: Task(description="Check the file", prompt="/check-file path/to/file.py")
 
 When NOT to use the Agent tool:
 - If you want to read a specific file path, use the Read or Glob tool instead of the Agent tool, to find the match more quickly
 - If you are searching for a specific class definition like "class Foo", use the Glob tool instead, to find the match more quickly
 - If you are searching for code within a specific file or set of 2-3 files, use the Read tool instead of the Agent tool, to find the match more quickly
+- Other tasks that are not related to the agent descriptions above
+
 
 Usage notes:
 1. Launch multiple agents concurrently whenever possible, to maximize performance; to do that, use a single message with multiple tool uses
@@ -14,3 +21,40 @@ Usage notes:
 3. Each agent invocation is stateless. You will not be able to send additional messages to the agent, nor will the agent be able to communicate with you outside of its final report. Therefore, your prompt should contain a highly detailed task description for the agent to perform autonomously and you should specify exactly what information the agent should return back to you in its final and only message to you.
 4. The agent's outputs should generally be trusted
 5. Clearly tell the agent whether you expect it to write code or just to do research (search, file reads, web fetches, etc.), since it is not aware of the user's intent
+6. If the agent description mentions that it should be used proactively, then you should try your best to use it without the user having to ask for it first. Use your judgement.
+
+Example usage:
+
+<example_agent_descriptions>
+"code-reviewer": use this agent after you are done writing a signficant piece of code
+"greeting-responder": use this agent when to respond to user greetings with a friendly joke
+</example_agent_description>
+
+<example>
+user: "Please write a function that checks if a number is prime"
+assistant: Sure let me write a function that checks if a number is prime
+assistant: First let me use the Write tool to write a function that checks if a number is prime
+assistant: I'm going to use the Write tool to write the following code:
+<code>
+function isPrime(n) {
+  if (n <= 1) return false
+  for (let i = 2; i * i <= n; i++) {
+    if (n % i === 0) return false
+  }
+  return true
+}
+</code>
+<commentary>
+Since a signficant piece of code was written and the task was completed, now use the code-reviewer agent to review the code
+</commentary>
+assistant: Now let me use the code-reviewer agent to review the code
+assistant: Uses the Task tool to launch the with the code-reviewer agent 
+</example>
+
+<example>
+user: "Hello"
+<commentary>
+Since the user is greeting, use the greeting-responder agent to respond with a friendly joke
+</commentary>
+assistant: "I'm going to use the Task tool to launch the with the greeting-responder agent"
+</example>

packages/opencode/src/tool/test.ts

@@ -0,0 +1,53 @@
+import Parser from "tree-sitter";
+import Bash from "tree-sitter-bash";
+
+const parser = new Parser();
+parser.setLanguage(Bash.language as any);
+
+const sourceCode = `cd --foo foo/bar && echo "hello" && cd ../baz`;
+
+const tree = parser.parse(sourceCode);
+
+// Function to extract commands and arguments
+function extractCommands(
+  node: any,
+): Array<{ command: string; args: string[] }> {
+  const commands: Array<{ command: string; args: string[] }> = [];
+
+  function traverse(node: any) {
+    if (node.type === "command") {
+      const commandNode = node.child(0);
+      if (commandNode) {
+        const command = commandNode.text;
+        const args: string[] = [];
+
+        // Extract arguments
+        for (let i = 1; i < node.childCount; i++) {
+          const child = node.child(i);
+          if (child && child.type === "word") {
+            args.push(child.text);
+          }
+        }
+
+        commands.push({ command, args });
+      }
+    }
+
+    // Traverse children
+    for (let i = 0; i < node.childCount; i++) {
+      traverse(node.child(i));
+    }
+  }
+
+  traverse(node);
+  return commands;
+}
+
+// Extract and display commands
+console.log("Source code: " + sourceCode);
+const commands = extractCommands(tree.rootNode);
+console.log("Extracted commands:");
+commands.forEach((cmd, index) => {
+  console.log(`${index + 1}. Command: ${cmd.command}`);
+  console.log(`   Args: [${cmd.args.join(", ")}]`);
+});

packages/opencode/src/tool/todo.ts

@@ -4,7 +4,7 @@ import DESCRIPTION_WRITE from "./todowrite.txt"
 import { App } from "../app/app"
 
 const TodoInfo = z.object({
-  content: z.string().min(1).describe("Brief description of the task"),
+  content: z.string().describe("Brief description of the task"),
   status: z.enum(["pending", "in_progress", "completed", "cancelled"]).describe("Current status of the task"),
   priority: z.enum(["high", "medium", "low"]).describe("Priority level of the task"),
   id: z.string().describe("Unique identifier for the todo item"),
@@ -18,8 +18,7 @@ const state = App.state("todo-tool", () => {
   return todos
 })
 
-export const TodoWriteTool = Tool.define({
-  id: "todowrite",
+export const TodoWriteTool = Tool.define("todowrite", {
   description: DESCRIPTION_WRITE,
   parameters: z.object({
     todos: z.array(TodoInfo).describe("The updated todo list"),
@@ -37,8 +36,7 @@ export const TodoWriteTool = Tool.define({
   },
 })
 
-export const TodoReadTool = Tool.define({
-  id: "todoread",
+export const TodoReadTool = Tool.define("todoread", {
   description: "Use this tool to read your todo list",
   parameters: z.object({}),
   async execute(_params, opts) {

packages/opencode/src/tool/tool.ts

@@ -7,26 +7,36 @@ export namespace Tool {
   export type Context<M extends Metadata = Metadata> = {
     sessionID: string
     messageID: string
+    callID?: string
     abort: AbortSignal
     metadata(input: { title?: string; metadata?: M }): void
   }
   export interface Info<Parameters extends StandardSchemaV1 = StandardSchemaV1, M extends Metadata = Metadata> {
     id: string
-    description: string
-    parameters: Parameters
-    execute(
-      args: StandardSchemaV1.InferOutput<Parameters>,
-      ctx: Context,
-    ): Promise<{
-      title: string
-      metadata: M
-      output: string
+    init: () => Promise<{
+      description: string
+      parameters: Parameters
+      execute(
+        args: StandardSchemaV1.InferOutput<Parameters>,
+        ctx: Context,
+      ): Promise<{
+        title: string
+        metadata: M
+        output: string
+      }>
     }>
   }
 
   export function define<Parameters extends StandardSchemaV1, Result extends Metadata>(
-    input: Info<Parameters, Result>,
+    id: string,
+    init: Info<Parameters, Result>["init"] | Awaited<ReturnType<Info<Parameters, Result>["init"]>>,
   ): Info<Parameters, Result> {
-    return input
+    return {
+      id,
+      init: async () => {
+        if (init instanceof Function) return init()
+        return init
+      },
+    }
   }
 }

packages/opencode/src/tool/webfetch.ts

@@ -7,20 +7,14 @@ const MAX_RESPONSE_SIZE = 5 * 1024 * 1024 // 5MB
 const DEFAULT_TIMEOUT = 30 * 1000 // 30 seconds
 const MAX_TIMEOUT = 120 * 1000 // 2 minutes
 
-export const WebFetchTool = Tool.define({
-  id: "webfetch",
+export const WebFetchTool = Tool.define("webfetch", {
   description: DESCRIPTION,
   parameters: z.object({
     url: z.string().describe("The URL to fetch content from"),
     format: z
       .enum(["text", "markdown", "html"])
       .describe("The format to return the content in (text, markdown, or html)"),
-    timeout: z
-      .number()
-      .min(0)
-      .max(MAX_TIMEOUT / 1000)
-      .describe("Optional timeout in seconds (max 120)")
-      .optional(),
+    timeout: z.number().describe("Optional timeout in seconds (max 120)").optional(),
   }),
   async execute(params, ctx) {
     // Validate URL

packages/opencode/src/tool/write.ts

@@ -8,9 +8,10 @@ import { App } from "../app/app"
 import { Bus } from "../bus"
 import { File } from "../file"
 import { FileTime } from "../file/time"
+import { Config } from "../config/config"
+import { Filesystem } from "../util/filesystem"
 
-export const WriteTool = Tool.define({
-  id: "write",
+export const WriteTool = Tool.define("write", {
   description: DESCRIPTION,
   parameters: z.object({
     filePath: z.string().describe("The absolute path to the file to write (must be absolute, not relative)"),
@@ -19,21 +20,28 @@ export const WriteTool = Tool.define({
   async execute(params, ctx) {
     const app = App.info()
     const filepath = path.isAbsolute(params.filePath) ? params.filePath : path.join(app.path.cwd, params.filePath)
+    if (!Filesystem.contains(app.path.cwd, filepath)) {
+      throw new Error(`File ${filepath} is not in the current working directory`)
+    }
 
     const file = Bun.file(filepath)
     const exists = await file.exists()
     if (exists) await FileTime.assert(ctx.sessionID, filepath)
 
-    await Permission.ask({
-      id: "write",
-      sessionID: ctx.sessionID,
-      title: exists ? "Overwrite this file: " + filepath : "Create new file: " + filepath,
-      metadata: {
-        filePath: filepath,
-        content: params.content,
-        exists,
-      },
-    })
+    const cfg = await Config.get()
+    if (cfg.permission?.edit === "ask")
+      await Permission.ask({
+        type: "write",
+        sessionID: ctx.sessionID,
+        messageID: ctx.messageID,
+        callID: ctx.callID,
+        title: exists ? "Overwrite this file: " + filepath : "Create new file: " + filepath,
+        metadata: {
+          filePath: filepath,
+          content: params.content,
+          exists,
+        },
+      })
 
     await Bun.write(filepath, params.content)
     await Bus.publish(File.Event.Edited, {

packages/opencode/src/trace/index.ts

@@ -0,0 +1,53 @@
+import { Global } from "../global"
+import { Installation } from "../installation"
+import path from "path"
+
+export namespace Trace {
+  export function init() {
+    if (!Installation.isDev()) return
+    const writer = Bun.file(path.join(Global.Path.data, "log", "fetch.log")).writer()
+
+    const originalFetch = globalThis.fetch
+    // @ts-expect-error
+    globalThis.fetch = async (input: RequestInfo | URL, init?: RequestInit) => {
+      const url = typeof input === "string" ? input : input instanceof URL ? input.toString() : input.url
+      const method = init?.method || "GET"
+
+      const urlObj = new URL(url)
+
+      writer.write(`\n${method} ${urlObj.pathname}${urlObj.search} HTTP/1.1\n`)
+      writer.write(`Host: ${urlObj.host}\n`)
+
+      if (init?.headers) {
+        if (init.headers instanceof Headers) {
+          init.headers.forEach((value, key) => {
+            writer.write(`${key}: ${value}\n`)
+          })
+        } else {
+          for (const [key, value] of Object.entries(init.headers)) {
+            writer.write(`${key}: ${value}\n`)
+          }
+        }
+      }
+
+      if (init?.body) {
+        writer.write(`\n${init.body}`)
+      }
+      writer.flush()
+      const response = await originalFetch(input, init)
+      const clonedResponse = response.clone()
+      writer.write(`\nHTTP/1.1 ${response.status} ${response.statusText}\n`)
+      response.headers.forEach((value, key) => {
+        writer.write(`${key}: ${value}\n`)
+      })
+      if (clonedResponse.body) {
+        clonedResponse.text().then(async (x) => {
+          writer.write(`\n${x}\n`)
+        })
+      }
+      writer.flush()
+
+      return response
+    }
+  }
+}