refactor(effect): unify service namespaces for file, format, vcs, skill, snapshot

Collapse the two-namespace pattern (e.g. File + FileService) into a single namespace per module: Interface, Service, layer, and defaultLayer all live on the domain namespace directly. Rename DiscoveryService → Discovery for consistency. Remove no-op init() methods and unnecessary defaultLayer = layer re-exports per EFFECT_MIGRATION_PLAN.md conventions.
refactor(effect): move account auth question modules
2026-03-18 12:44:29 +00:00 · 2026-03-17 22:05:34 -04:00 · 2026-03-17 21:07:40 -04:00 · 2026-03-17 20:55:12 -04:00 · 2026-03-17 20:40:51 -04:00 · 2026-03-17 20:35:00 -04:00
169 changed files with 5836 additions and 4307 deletions
--- a/.github/VOUCHED.td
+++ b/.github/VOUCHED.td
@@ -21,3 +21,4 @@ r44vc0rp
 rekram1-node
 -spider-yamet clawdbot/llm psychosis, spam pinging the team
 thdxr
+-OpenCode2026
--- a/.github/actions/setup-bun/action.yml
+++ b/.github/actions/setup-bun/action.yml
@@ -41,5 +41,13 @@ runs:
      shell: bash

    - name: Install dependencies
-      run: bun install
+      run: |
+        # Workaround for patched peer variants
+        # e.g. ./patches/ for standard-openapi
+        # https://github.com/oven-sh/bun/issues/28147
+        if [ "$RUNNER_OS" = "Windows" ]; then
+          bun install --linker hoisted
+        else
+          bun install
+        fi
      shell: bash
--- a/bun.lock
+++ b/bun.lock
@@ -26,7 +26,7 @@
    },
    "packages/app": {
      "name": "@opencode-ai/app",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@opencode-ai/sdk": "workspace:*",
@@ -77,7 +77,7 @@
    },
    "packages/console/app": {
      "name": "@opencode-ai/console-app",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@cloudflare/vite-plugin": "1.15.2",
        "@ibm/plex": "6.4.1",
@@ -111,7 +111,7 @@
    },
    "packages/console/core": {
      "name": "@opencode-ai/console-core",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@aws-sdk/client-sts": "3.782.0",
        "@jsx-email/render": "1.1.1",
@@ -138,7 +138,7 @@
    },
    "packages/console/function": {
      "name": "@opencode-ai/console-function",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@ai-sdk/anthropic": "2.0.0",
        "@ai-sdk/openai": "2.0.2",
@@ -162,7 +162,7 @@
    },
    "packages/console/mail": {
      "name": "@opencode-ai/console-mail",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@jsx-email/all": "2.2.3",
        "@jsx-email/cli": "1.4.3",
@@ -186,7 +186,7 @@
    },
    "packages/desktop": {
      "name": "@opencode-ai/desktop",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@opencode-ai/app": "workspace:*",
        "@opencode-ai/ui": "workspace:*",
@@ -219,7 +219,7 @@
    },
    "packages/desktop-electron": {
      "name": "@opencode-ai/desktop-electron",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@opencode-ai/app": "workspace:*",
        "@opencode-ai/ui": "workspace:*",
@@ -250,7 +250,7 @@
    },
    "packages/enterprise": {
      "name": "@opencode-ai/enterprise",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@opencode-ai/ui": "workspace:*",
        "@opencode-ai/util": "workspace:*",
@@ -279,7 +279,7 @@
    },
    "packages/function": {
      "name": "@opencode-ai/function",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@octokit/auth-app": "8.0.1",
        "@octokit/rest": "catalog:",
@@ -295,7 +295,7 @@
    },
    "packages/opencode": {
      "name": "opencode",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "bin": {
        "opencode": "./bin/opencode",
      },
@@ -324,6 +324,7 @@
        "@ai-sdk/xai": "2.0.51",
        "@aws-sdk/credential-providers": "3.993.0",
        "@clack/prompts": "1.0.0-alpha.1",
+        "@effect/platform-node": "4.0.0-beta.31",
        "@gitlab/gitlab-ai-provider": "3.6.0",
        "@gitlab/opencode-gitlab-auth": "1.3.3",
        "@hono/standard-validator": "0.1.5",
@@ -416,7 +417,7 @@
    },
    "packages/plugin": {
      "name": "@opencode-ai/plugin",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@opencode-ai/sdk": "workspace:*",
        "zod": "catalog:",
@@ -440,7 +441,7 @@
    },
    "packages/sdk/js": {
      "name": "@opencode-ai/sdk",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "devDependencies": {
        "@hey-api/openapi-ts": "0.90.10",
        "@tsconfig/node22": "catalog:",
@@ -451,7 +452,7 @@
    },
    "packages/slack": {
      "name": "@opencode-ai/slack",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@opencode-ai/sdk": "workspace:*",
        "@slack/bolt": "^3.17.1",
@@ -486,7 +487,7 @@
    },
    "packages/ui": {
      "name": "@opencode-ai/ui",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@kobalte/core": "catalog:",
        "@opencode-ai/sdk": "workspace:*",
@@ -532,7 +533,7 @@
    },
    "packages/util": {
      "name": "@opencode-ai/util",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "zod": "catalog:",
      },
@@ -543,7 +544,7 @@
    },
    "packages/web": {
      "name": "@opencode-ai/web",
-      "version": "1.2.26",
+      "version": "1.2.27",
      "dependencies": {
        "@astrojs/cloudflare": "12.6.3",
        "@astrojs/markdown-remark": "6.3.1",
@@ -972,6 +973,10 @@

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+    "@effect/platform-node": ["@effect/platform-node@4.0.0-beta.31", "", { "dependencies": { "@effect/platform-node-shared": "^4.0.0-beta.31", "mime": "^4.1.0", "undici": "^7.20.0" }, "peerDependencies": { "effect": "^4.0.0-beta.31", "ioredis": "^5.7.0" } }, "sha512-KmVZwGsQRBMZZYPJwpL2vj6sxjBzfXhyA8RgsH5/cmckDTsZpVTyqODQ/FFzmCnMWuYjZoJGPghTDrVVDn/6ZA=="],
+
+    "@effect/platform-node-shared": ["@effect/platform-node-shared@4.0.0-beta.33", "", { "dependencies": { "@types/ws": "^8.18.1", "ws": "^8.19.0" }, "peerDependencies": { "effect": "^4.0.0-beta.33" } }, "sha512-jaJnvYz1IiPZyN//fCJsvwnmujJS5KD8noCVVLhb4ZGCWKhQpt0x2iuax6HFzMlPEQSfl04GLU+PVKh0nkzPyA=="],
+
    "@electron/asar": ["@electron/asar@3.4.1", "", { "dependencies": { "commander": "^5.0.0", "glob": "^7.1.6", "minimatch": "^3.0.4" }, "bin": { "asar": "bin/asar.js" } }, "sha512-i4/rNPRS84t0vSRa2HorerGRXWyF4vThfHesw0dmcWHp+cspK743UanA0suA5Q5y8kzY2y6YKrvbIUn69BCAiA=="],

    "@electron/fuses": ["@electron/fuses@1.8.0", "", { "dependencies": { "chalk": "^4.1.1", "fs-extra": "^9.0.1", "minimist": "^1.2.5" }, "bin": { "electron-fuses": "dist/bin.js" } }, "sha512-zx0EIq78WlY/lBb1uXlziZmDZI4ubcCXIMJ4uGjXzZW0nS19TjSPeXPAjzzTmKQlJUZm0SbmZhPKP7tuQ1SsEw=="],
@@ -1168,6 +1173,8 @@

    "@internationalized/number": ["@internationalized/number@3.6.5", "", { "dependencies": { "@swc/helpers": "^0.5.0" } }, "sha512-6hY4Kl4HPBvtfS62asS/R22JzNNy8vi/Ssev7x6EobfCp+9QIB2hKvI2EtbdJ0VSQacxVNtqhE/NmF/NZ0gm6g=="],

+    "@ioredis/commands": ["@ioredis/commands@1.5.1", "", {}, "sha512-JH8ZL/ywcJyR9MmJ5BNqZllXNZQqQbnVZOqpPQqE1vHiFgAw4NHbvE0FOduNU8IX9babitBT46571OnPTT0Zcw=="],
+
    "@isaacs/balanced-match": ["@isaacs/balanced-match@4.0.1", "", {}, "sha512-yzMTt9lEb8Gv7zRioUilSglI0c0smZ9k5D65677DLWLtWJaXIS3CqcGyUFByYKlnUj6TkjLVs54fBl6+TiGQDQ=="],

    "@isaacs/brace-expansion": ["@isaacs/brace-expansion@5.0.1", "", { "dependencies": { "@isaacs/balanced-match": "^4.0.1" } }, "sha512-WMz71T1JS624nWj2n2fnYAuPovhv7EUhk69R6i9dsVyzxt5eM3bjwvgk9L+APE1TRscGysAVMANkB0jh0LQZrQ=="],
@@ -2536,6 +2543,8 @@

    "clsx": ["clsx@2.1.1", "", {}, "sha512-eYm0QWBtUrBWZWG0d386OGAw16Z995PiOVo2B7bjWSbHedGl5e0ZWaq65kOGgUSNesEIDkB9ISbTg/JK9dhCZA=="],

+    "cluster-key-slot": ["cluster-key-slot@1.1.2", "", {}, "sha512-RMr0FhtfXemyinomL4hrWcYJxmX6deFdCxpJzhDttxgO1+bcCnkk+9drydLVDmAMG7NE6aN/fl4F7ucU/90gAA=="],
+
    "collapse-white-space": ["collapse-white-space@2.1.0", "", {}, "sha512-loKTxY1zCOuG4j9f6EPnuyyYkf58RnhhWTvRoZEokgB+WbdXehfjFviyOVYkqzEWz1Q5kRiZdBYS5SwxbQYwzw=="],

    "color": ["color@4.2.3", "", { "dependencies": { "color-convert": "^2.0.1", "color-string": "^1.9.0" } }, "sha512-1rXeuUUiGGrykh+CeBdu5Ie7OJwinCgQY0bc7GCRxy5xVHy+moaqkpL/jqQq0MtQOeYcrqEz4abc5f0KtU7W4A=="],
@@ -3176,6 +3185,8 @@

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+    "ioredis": ["ioredis@5.10.0", "", { "dependencies": { "@ioredis/commands": "1.5.1", "cluster-key-slot": "^1.1.0", "debug": "^4.3.4", "denque": "^2.1.0", "lodash.defaults": "^4.2.0", "lodash.isarguments": "^3.1.0", "redis-errors": "^1.2.0", "redis-parser": "^3.0.0", "standard-as-callback": "^2.1.0" } }, "sha512-HVBe9OFuqs+Z6n64q09PQvP1/R4Bm+30PAyyD4wIEqssh3v9L21QjCVk4kRLucMBcDokJTcLjsGeVRlq/nH6DA=="],
+
    "ip-address": ["ip-address@10.1.0", "", {}, "sha512-XXADHxXmvT9+CRxhXg56LJovE+bmWnEWB78LB83VZTprKTmaC5QfruXocxzTZ2Kl0DNwKuBdlIhjL8LeY8Sf8Q=="],

    "ipaddr.js": ["ipaddr.js@1.9.1", "", {}, "sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g=="],
@@ -3408,10 +3419,14 @@

    "lodash": ["lodash@4.17.23", "", {}, "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w=="],

+    "lodash.defaults": ["lodash.defaults@4.2.0", "", {}, "sha512-qjxPLHd3r5DnsdGacqOMU6pb/avJzdh9tFX2ymgoZE27BmjXrNy/y4LoaiTeAb+O3gL8AfpJGtqfX/ae2leYYQ=="],
+
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+    "lodash.isarguments": ["lodash.isarguments@3.1.0", "", {}, "sha512-chi4NHZlZqZD18a0imDHnZPrDeBbTtVN7GXMwuGdRH9qotxAjYs3aVLKc7zNOG9eddR5Ksd8rvFEBc9SsggPpg=="],
+
    "lodash.isboolean": ["lodash.isboolean@3.0.3", "", {}, "sha512-Bz5mupy2SVbPHURB98VAcw+aHh4vRV5IPNhILUCsOzRmsTmSQ17jIuqopAentWoehktxGd9e/hbIXq980/1QJg=="],

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@@ -3598,7 +3613,7 @@

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+    "mime": ["mime@4.1.0", "", { "bin": { "mime": "bin/cli.js" } }, "sha512-X5ju04+cAzsojXKes0B/S4tcYtFAJ6tTMuSPBEn9CPGlrWr8Fiw7qYeLT0XyH80HSoAoqWCaz+MWKh22P7G1cw=="],

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@@ -4022,6 +4037,10 @@

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+
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@@ -4280,6 +4299,8 @@

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@@ -4986,12 +5007,16 @@

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@@ -5032,6 +5057,8 @@

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+
    "@jimp/plugin-blit/zod": ["zod@3.25.76", "", {}, "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ=="],

    "@jimp/plugin-circle/zod": ["zod@3.25.76", "", {}, "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ=="],
--- a/nix/hashes.json
+++ b/nix/hashes.json
@@ -1,8 +1,8 @@
 {
  "nodeModules": {
-    "x86_64-linux": "sha256-WJgo6UclmtQOEubnKMZybdIEhZ1uRTucF61yojjd+l0=",
-    "aarch64-linux": "sha256-QfZ/g7EZFpe6ndR3dG8WvVfMj5Kyd/R/4kkTJfGJxL4=",
-    "aarch64-darwin": "sha256-ezr/R70XJr9eN5l3mgb7HzLF6QsofNEKUOtuxbfli80=",
-    "x86_64-darwin": "sha256-MbsBGS415uEU/n1RQ/5H5pqh+udLY3+oimJ+eS5uJVI="
+    "x86_64-linux": "sha256-VF3rXpIz9XbTTfM8YB98DJJOs4Sotaq5cSwIBUfbNDA=",
+    "aarch64-linux": "sha256-cIE10+0xhb5u0TQedaDbEu6e40ypHnSBmh8unnhCDZE=",
+    "aarch64-darwin": "sha256-d/l7g/4angRw/oxoSGpcYL0i9pNphgRChJwhva5Kypo=",
+    "x86_64-darwin": "sha256-WQyuUKMfHpO1rpWsjhCXuG99iX2jEdSe3AVltxvt+1Y="
  }
 }
--- a/packages/app/e2e/AGENTS.md
+++ b/packages/app/e2e/AGENTS.md
@@ -174,6 +174,8 @@ await page.keyboard.press(`${modKey}+Comma`) // Open settings
 - In terminal tests, type through the browser. Do not write to the PTY through the SDK.
 - Use `waitTerminalReady(page, { term? })` and `runTerminal(page, { cmd, token, term?, timeout? })` from `actions.ts`.
 - These helpers use the fixture-enabled test-only terminal driver and wait for output after the terminal writer settles.
+- After opening the terminal, use `waitTerminalFocusIdle(...)` before the next keyboard action when prompt focus or keyboard routing matters.
+- This avoids racing terminal mount, focus handoff, and prompt readiness when the next step types or sends shortcuts.
 - Avoid `waitForTimeout` and custom DOM or `data-*` readiness checks.

 ### Wait on state
@@ -182,6 +184,9 @@ await page.keyboard.press(`${modKey}+Comma`) // Open settings
 - Avoid race-prone flows that assume work is finished after an action
 - Wait or poll on observable state with `expect(...)`, `expect.poll(...)`, or existing helpers
 - Prefer locator assertions like `toBeVisible()`, `toHaveCount(0)`, and `toHaveAttribute(...)` for normal UI state, and reserve `expect.poll(...)` for probe, mock, or backend state
+- Prefer semantic app state over transient DOM visibility when behavior depends on active selection, focus ownership, or async retry loops
+- Do not treat a visible element as proof that the app will route the next action to it
+- When fixing a flake, validate with `--repeat-each` and multiple workers when practical

 ### Add hooks

@@ -189,11 +194,16 @@ await page.keyboard.press(`${modKey}+Comma`) // Open settings
 - Keep these hooks minimal and purpose-built, following the style of `packages/app/src/testing/terminal.ts`
 - Test-only hooks must be inert unless explicitly enabled; do not add normal-runtime listeners, reactive subscriptions, or per-update allocations for e2e ceremony
 - When mocking routes or APIs, expose explicit mock state and wait on that before asserting post-action UI
+- Add minimal test-only probes for semantic state like the active list item or selected command when DOM intermediates are unstable
+- Prefer probing committed app state over asserting on transient highlight, visibility, or animation states

 ### Prefer helpers

 - Prefer fluent helpers and drivers when they make intent obvious and reduce locator-heavy noise
 - Use direct locators when the interaction is simple and a helper would not add clarity
+- Prefer helpers that both perform an action and verify the app consumed it
+- Avoid composing helpers redundantly when one already includes the other or already waits for the resulting state
+- If a helper already covers the required wait or verification, use it directly instead of layering extra clicks, keypresses, or assertions

 ## Writing New Tests

--- a/packages/app/e2e/actions.ts
+++ b/packages/app/e2e/actions.ts
@@ -16,6 +16,7 @@ import {
  listItemSelector,
  listItemKeySelector,
  listItemKeyStartsWithSelector,
+  promptSelector,
  terminalSelector,
  workspaceItemSelector,
  workspaceMenuTriggerSelector,
@@ -61,6 +62,15 @@ async function terminalReady(page: Page, term?: Locator) {
  }, id)
 }

+async function terminalFocusIdle(page: Page, term?: Locator) {
+  const next = term ?? page.locator(terminalSelector).first()
+  const id = await terminalID(next)
+  return page.evaluate((id) => {
+    const state = (window as E2EWindow).__opencode_e2e?.terminal?.terminals?.[id]
+    return (state?.focusing ?? 0) === 0
+  }, id)
+}
+
 async function terminalHas(page: Page, input: { term?: Locator; token: string }) {
  const next = input.term ?? page.locator(terminalSelector).first()
  const id = await terminalID(next)
@@ -73,6 +83,29 @@ async function terminalHas(page: Page, input: { term?: Locator; token: string })
  )
 }

+async function promptSlashActive(page: Page, id: string) {
+  return page.evaluate((id) => {
+    const state = (window as E2EWindow).__opencode_e2e?.prompt?.current
+    if (state?.popover !== "slash") return false
+    if (!state.slash.ids.includes(id)) return false
+    return state.slash.active === id
+  }, id)
+}
+
+async function promptSlashSelects(page: Page) {
+  return page.evaluate(() => {
+    return (window as E2EWindow).__opencode_e2e?.prompt?.current?.selects ?? 0
+  })
+}
+
+async function promptSlashSelected(page: Page, input: { id: string; count: number }) {
+  return page.evaluate((input) => {
+    const state = (window as E2EWindow).__opencode_e2e?.prompt?.current
+    if (!state) return false
+    return state.selected === input.id && state.selects >= input.count
+  }, input)
+}
+
 export async function waitTerminalReady(page: Page, input?: { term?: Locator; timeout?: number }) {
  const term = input?.term ?? page.locator(terminalSelector).first()
  const timeout = input?.timeout ?? 10_000
@@ -81,6 +114,43 @@ export async function waitTerminalReady(page: Page, input?: { term?: Locator; ti
  await expect.poll(() => terminalReady(page, term), { timeout }).toBe(true)
 }

+export async function waitTerminalFocusIdle(page: Page, input?: { term?: Locator; timeout?: number }) {
+  const term = input?.term ?? page.locator(terminalSelector).first()
+  const timeout = input?.timeout ?? 10_000
+  await waitTerminalReady(page, { term, timeout })
+  await expect.poll(() => terminalFocusIdle(page, term), { timeout }).toBe(true)
+}
+
+export async function showPromptSlash(
+  page: Page,
+  input: { id: string; text: string; prompt?: Locator; timeout?: number },
+) {
+  const prompt = input.prompt ?? page.locator(promptSelector)
+  const timeout = input.timeout ?? 10_000
+  await expect
+    .poll(
+      async () => {
+        await prompt.click().catch(() => false)
+        await prompt.fill(input.text).catch(() => false)
+        return promptSlashActive(page, input.id).catch(() => false)
+      },
+      { timeout },
+    )
+    .toBe(true)
+}
+
+export async function runPromptSlash(
+  page: Page,
+  input: { id: string; text: string; prompt?: Locator; timeout?: number },
+) {
+  const prompt = input.prompt ?? page.locator(promptSelector)
+  const timeout = input.timeout ?? 10_000
+  const count = await promptSlashSelects(page)
+  await showPromptSlash(page, input)
+  await prompt.press("Enter")
+  await expect.poll(() => promptSlashSelected(page, { id: input.id, count: count + 1 }), { timeout }).toBe(true)
+}
+
 export async function runTerminal(page: Page, input: { cmd: string; token: string; term?: Locator; timeout?: number }) {
  const term = input.term ?? page.locator(terminalSelector).first()
  const timeout = input.timeout ?? 10_000
--- a/packages/app/e2e/fixtures.ts
+++ b/packages/app/e2e/fixtures.ts
@@ -98,6 +98,9 @@ async function seedStorage(page: Page, input: { directory: string; extra?: strin
      model: {
        enabled: true,
      },
+      prompt: {
+        enabled: true,
+      },
      terminal: {
        enabled: true,
        terminals: {},
--- a/packages/app/e2e/prompt/prompt-slash-terminal.spec.ts
+++ b/packages/app/e2e/prompt/prompt-slash-terminal.spec.ts
@@ -1,5 +1,5 @@
 import { test, expect } from "../fixtures"
-import { waitTerminalReady } from "../actions"
+import { runPromptSlash, waitTerminalFocusIdle } from "../actions"
 import { promptSelector, terminalSelector } from "../selectors"

 test("/terminal toggles the terminal panel", async ({ page, gotoSession }) => {
@@ -7,29 +7,12 @@ test("/terminal toggles the terminal panel", async ({ page, gotoSession }) => {

  const prompt = page.locator(promptSelector)
  const terminal = page.locator(terminalSelector)
-  const slash = page.locator('[data-slash-id="terminal.toggle"]').first()

  await expect(terminal).not.toBeVisible()

-  await prompt.fill("/terminal")
-  await expect(slash).toBeVisible()
-  await page.keyboard.press("Enter")
-  await waitTerminalReady(page, { term: terminal })
+  await runPromptSlash(page, { prompt, text: "/terminal", id: "terminal.toggle" })
+  await waitTerminalFocusIdle(page, { term: terminal })

-  // Terminal panel retries focus (immediate, RAF, 120ms, 240ms) after opening,
-  // which can steal focus from the prompt and prevent fill() from triggering
-  // the slash popover. Re-attempt click+fill until all retries are exhausted
-  // and the popover appears.
-  await expect
-    .poll(
-      async () => {
-        await prompt.click().catch(() => false)
-        await prompt.fill("/terminal").catch(() => false)
-        return slash.isVisible().catch(() => false)
-      },
-      { timeout: 10_000 },
-    )
-    .toBe(true)
-  await page.keyboard.press("Enter")
+  await runPromptSlash(page, { prompt, text: "/terminal", id: "terminal.toggle" })
  await expect(terminal).not.toBeVisible()
 })
--- a/packages/app/e2e/session/session-model-persistence.spec.ts
+++ b/packages/app/e2e/session/session-model-persistence.spec.ts
@@ -349,3 +349,25 @@ test("session model restore across workspaces", async ({ page, withProject }) =>
    await waitFooter(page, firstState)
  })
 })
+
+test("variant preserved when switching agent modes", async ({ page, withProject }) => {
+  await page.setViewportSize({ width: 1440, height: 900 })
+
+  await withProject(async ({ directory, gotoSession }) => {
+    await gotoSession()
+
+    await ensureVariant(page, directory)
+    const updated = await chooseDifferentVariant(page)
+
+    const available = await agents(page)
+    const other = available.find((name) => name !== updated.agent)
+    test.skip(!other, "only one agent available")
+    if (!other) return
+
+    await choose(page, promptAgentSelector, other)
+    await waitFooter(page, { agent: other, variant: updated.variant })
+
+    await choose(page, promptAgentSelector, updated.agent)
+    await waitFooter(page, { agent: updated.agent, variant: updated.variant })
+  })
+})
--- a/packages/app/e2e/settings/settings-keybinds.spec.ts
+++ b/packages/app/e2e/settings/settings-keybinds.spec.ts
@@ -1,5 +1,5 @@
 import { test, expect } from "../fixtures"
-import { openSettings, closeDialog, waitTerminalReady, withSession } from "../actions"
+import { openSettings, closeDialog, waitTerminalFocusIdle, withSession } from "../actions"
 import { keybindButtonSelector, terminalSelector } from "../selectors"
 import { modKey } from "../utils"

@@ -302,7 +302,7 @@ test("changing terminal toggle keybind works", async ({ page, gotoSession }) =>
  await expect(terminal).not.toBeVisible()

  await page.keyboard.press(`${modKey}+Y`)
-  await waitTerminalReady(page, { term: terminal })
+  await waitTerminalFocusIdle(page, { term: terminal })

  await page.keyboard.press(`${modKey}+Y`)
  await expect(terminal).not.toBeVisible()
--- a/packages/app/e2e/terminal/terminal-init.spec.ts
+++ b/packages/app/e2e/terminal/terminal-init.spec.ts
@@ -1,5 +1,5 @@
 import { test, expect } from "../fixtures"
-import { waitTerminalReady } from "../actions"
+import { waitTerminalFocusIdle, waitTerminalReady } from "../actions"
 import { promptSelector, terminalSelector } from "../selectors"
 import { terminalToggleKey } from "../utils"

@@ -14,7 +14,7 @@ test("smoke terminal mounts and can create a second tab", async ({ page, gotoSes
    await page.keyboard.press(terminalToggleKey)
  }

-  await waitTerminalReady(page, { term: terminals.first() })
+  await waitTerminalFocusIdle(page, { term: terminals.first() })
  await expect(terminals).toHaveCount(1)

  // Ghostty captures a lot of keybinds when focused; move focus back
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/app",
-  "version": "1.2.26",
+  "version": "1.2.27",
  "description": "",
  "type": "module",
  "exports": {
--- a/packages/app/src/components/prompt-input.tsx
+++ b/packages/app/src/components/prompt-input.tsx
@@ -1,8 +1,7 @@
 import { useFilteredList } from "@opencode-ai/ui/hooks"
 import { useSpring } from "@opencode-ai/ui/motion-spring"
-import { createEffect, on, Component, Show, onCleanup, Switch, Match, createMemo, createSignal } from "solid-js"
+import { createEffect, on, Component, Show, onCleanup, createMemo, createSignal } from "solid-js"
 import { createStore } from "solid-js/store"
-import { createFocusSignal } from "@solid-primitives/active-element"
 import { useLocal } from "@/context/local"
 import { selectionFromLines, type SelectedLineRange, useFile } from "@/context/file"
 import {
@@ -37,6 +36,7 @@ import { useLanguage } from "@/context/language"
 import { usePlatform } from "@/context/platform"
 import { useSessionLayout } from "@/pages/session/session-layout"
 import { createSessionTabs } from "@/pages/session/helpers"
+import { promptEnabled, promptProbe } from "@/testing/prompt"
 import { createTextFragment, getCursorPosition, setCursorPosition, setRangeEdge } from "./prompt-input/editor-dom"
 import { createPromptAttachments } from "./prompt-input/attachments"
 import { ACCEPTED_FILE_TYPES } from "./prompt-input/files"
@@ -244,6 +244,23 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
      },
  )
  const working = createMemo(() => status()?.type !== "idle")
+  const tip = () => {
+    if (working()) {
+      return (
+        <div class="flex items-center gap-2">
+          <span>{language.t("prompt.action.stop")}</span>
+          <span class="text-icon-base text-12-medium text-[10px]!">{language.t("common.key.esc")}</span>
+        </div>
+      )
+    }
+
+    return (
+      <div class="flex items-center gap-2">
+        <span>{language.t("prompt.action.send")}</span>
+        <Icon name="enter" size="small" class="text-icon-base" />
+      </div>
+    )
+  }
  const imageAttachments = createMemo(() =>
    prompt.current().filter((part): part is ImageAttachmentPart => part.type === "image"),
  )
@@ -411,7 +428,6 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
    }
  }

-  const isFocused = createFocusSignal(() => editorRef)
  const escBlur = () => platform.platform === "desktop" && platform.os === "macos"

  const pick = () => fileInputRef?.click()
@@ -606,6 +622,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {

  const handleSlashSelect = (cmd: SlashCommand | undefined) => {
    if (!cmd) return
+    promptProbe.select(cmd.id)
    closePopover()

    if (cmd.type === "custom") {
@@ -694,6 +711,20 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
    })
  })

+  if (promptEnabled()) {
+    createEffect(() => {
+      promptProbe.set({
+        popover: store.popover,
+        slash: {
+          active: slashActive() ?? null,
+          ids: slashFlat().map((cmd) => cmd.id),
+        },
+      })
+    })
+
+    onCleanup(() => promptProbe.clear())
+  }
+
  const selectPopoverActive = () => {
    if (store.popover === "at") {
      const items = atFlat()
@@ -1014,7 +1045,6 @@ export const PromptInput: Component<PromptInputProps> = (props) => {

  const { addAttachment, removeAttachment, handlePaste } = createPromptAttachments({
    editor: () => editorRef,
-    isFocused,
    isDialogActive: () => !!dialog.active,
    setDraggingType: (type) => setStore("draggingType", type),
    focusEditor: () => {
@@ -1349,26 +1379,7 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
            />

            <div class="flex items-center gap-1 pointer-events-auto">
-              <Tooltip
-                placement="top"
-                inactive={!prompt.dirty() && !working()}
-                value={
-                  <Switch>
-                    <Match when={working()}>
-                      <div class="flex items-center gap-2">
-                        <span>{language.t("prompt.action.stop")}</span>
-                        <span class="text-icon-base text-12-medium text-[10px]!">{language.t("common.key.esc")}</span>
-                      </div>
-                    </Match>
-                    <Match when={true}>
-                      <div class="flex items-center gap-2">
-                        <span>{language.t("prompt.action.send")}</span>
-                        <Icon name="enter" size="small" class="text-icon-base" />
-                      </div>
-                    </Match>
-                  </Switch>
-                }
-              >
+              <Tooltip placement="top" inactive={!prompt.dirty() && !working()} value={tip()}>
                <IconButton
                  data-action="prompt-submit"
                  type="submit"
--- a/packages/app/src/components/prompt-input/attachments.test.ts
+++ b/packages/app/src/components/prompt-input/attachments.test.ts
@@ -1,5 +1,6 @@
 import { describe, expect, test } from "bun:test"
 import { attachmentMime } from "./files"
+import { pasteMode } from "./paste"

 describe("attachmentMime", () => {
  test("keeps PDFs when the browser reports the mime", async () => {
@@ -22,3 +23,22 @@ describe("attachmentMime", () => {
    expect(await attachmentMime(file)).toBeUndefined()
  })
 })
+
+describe("pasteMode", () => {
+  test("uses native paste for short single-line text", () => {
+    expect(pasteMode("hello world")).toBe("native")
+  })
+
+  test("uses manual paste for multiline text", () => {
+    expect(
+      pasteMode(`{
+  "ok": true
+}`),
+    ).toBe("manual")
+    expect(pasteMode("a\r\nb")).toBe("manual")
+  })
+
+  test("uses manual paste for large text", () => {
+    expect(pasteMode("x".repeat(8000))).toBe("manual")
+  })
+})
--- a/packages/app/src/components/prompt-input/attachments.ts
+++ b/packages/app/src/components/prompt-input/attachments.ts
@@ -5,8 +5,7 @@ import { useLanguage } from "@/context/language"
 import { uuid } from "@/utils/uuid"
 import { getCursorPosition } from "./editor-dom"
 import { attachmentMime } from "./files"
-const LARGE_PASTE_CHARS = 8000
-const LARGE_PASTE_BREAKS = 120
+import { normalizePaste, pasteMode } from "./paste"

 function dataUrl(file: File, mime: string) {
  return new Promise<string>((resolve) => {
@@ -25,20 +24,8 @@ function dataUrl(file: File, mime: string) {
  })
 }

-function largePaste(text: string) {
-  if (text.length >= LARGE_PASTE_CHARS) return true
-  let breaks = 0
-  for (const char of text) {
-    if (char !== "\n") continue
-    breaks += 1
-    if (breaks >= LARGE_PASTE_BREAKS) return true
-  }
-  return false
-}
-
 type PromptAttachmentsInput = {
  editor: () => HTMLDivElement | undefined
-  isFocused: () => boolean
  isDialogActive: () => boolean
  setDraggingType: (type: "image" | "@mention" | null) => void
  focusEditor: () => void
@@ -91,7 +78,6 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {
  }

  const handlePaste = async (event: ClipboardEvent) => {
-    if (!input.isFocused()) return
    const clipboardData = event.clipboardData
    if (!clipboardData) return

@@ -126,16 +112,23 @@ export function createPromptAttachments(input: PromptAttachmentsInput) {

    if (!plainText) return

-    if (largePaste(plainText)) {
-      if (input.addPart({ type: "text", content: plainText, start: 0, end: 0 })) return
+    const text = normalizePaste(plainText)
+
+    const put = () => {
+      if (input.addPart({ type: "text", content: text, start: 0, end: 0 })) return true
      input.focusEditor()
-      if (input.addPart({ type: "text", content: plainText, start: 0, end: 0 })) return
+      return input.addPart({ type: "text", content: text, start: 0, end: 0 })
    }

-    const inserted = typeof document.execCommand === "function" && document.execCommand("insertText", false, plainText)
+    if (pasteMode(text) === "manual") {
+      put()
+      return
+    }
+
+    const inserted = typeof document.execCommand === "function" && document.execCommand("insertText", false, text)
    if (inserted) return

-    input.addPart({ type: "text", content: plainText, start: 0, end: 0 })
+    put()
  }

  const handleGlobalDragOver = (event: DragEvent) => {
--- a/packages/app/src/components/prompt-input/paste.ts
+++ b/packages/app/src/components/prompt-input/paste.ts
@@ -0,0 +1,24 @@
+const LARGE_PASTE_CHARS = 8000
+const LARGE_PASTE_BREAKS = 120
+
+function largePaste(text: string) {
+  if (text.length >= LARGE_PASTE_CHARS) return true
+  let breaks = 0
+  for (const char of text) {
+    if (char !== "\n") continue
+    breaks += 1
+    if (breaks >= LARGE_PASTE_BREAKS) return true
+  }
+  return false
+}
+
+export function normalizePaste(text: string) {
+  if (!text.includes("\r")) return text
+  return text.replace(/\r\n?/g, "\n")
+}
+
+export function pasteMode(text: string) {
+  if (largePaste(text)) return "manual"
+  if (text.includes("\n") || text.includes("\r")) return "manual"
+  return "native"
+}
--- a/packages/app/src/components/session/session-header.tsx
+++ b/packages/app/src/components/session/session-header.tsx
@@ -326,7 +326,7 @@ export function SessionHeader() {
                      <div class="flex h-[24px] box-border items-center rounded-md border border-border-weak-base bg-surface-panel overflow-hidden">
                        <Button
                          variant="ghost"
-                          class="rounded-none h-full py-0 pr-1.5 pl-px gap-1.5 border-none shadow-none disabled:!cursor-default"
+                          class="rounded-none h-full px-0.5 border-none shadow-none disabled:!cursor-default"
                          classList={{
                            "bg-surface-raised-base-active": opening(),
                          }}
@@ -339,7 +339,6 @@ export function SessionHeader() {
                              <Spinner class="size-3.5" style={{ color: tint() ?? "var(--icon-base)" }} />
                            </Show>
                          </div>
-                          <span class="text-12-regular text-text-strong">{language.t("common.open")}</span>
                        </Button>
                        <DropdownMenu
                          gutter={4}
--- a/packages/app/src/context/local.tsx
+++ b/packages/app/src/context/local.tsx
@@ -192,10 +192,11 @@ export const { use: useLocal, provider: LocalProvider } = createSimpleContext({
            model: item.model,
            variant: item.variant ?? null,
          })
+          const prev = scope()
          const next = {
            agent: item.name,
-            model: item.model,
-            variant: item.variant,
+            model: item.model ?? prev?.model,
+            variant: item.variant ?? prev?.variant,
          } satisfies State
          const session = id()
          if (session) {
--- a/packages/app/src/context/prompt.tsx
+++ b/packages/app/src/context/prompt.tsx
@@ -1,10 +1,10 @@
-import { createStore, type SetStoreFunction } from "solid-js/store"
 import { createSimpleContext } from "@opencode-ai/ui/context"
-import { batch, createMemo, createRoot, onCleanup } from "solid-js"
+import { checksum } from "@opencode-ai/util/encode"
 import { useParams } from "@solidjs/router"
+import { batch, createMemo, createRoot, getOwner, onCleanup } from "solid-js"
+import { createStore, type SetStoreFunction } from "solid-js/store"
 import type { FileSelection } from "@/context/file"
 import { Persist, persisted } from "@/utils/persist"
-import { checksum } from "@opencode-ai/util/encode"

 interface PartBase {
  content: string
@@ -250,6 +250,7 @@ export const { use: usePrompt, provider: PromptProvider } = createSimpleContext(
      }
    }

+    const owner = getOwner()
    const load = (dir: string, id: string | undefined) => {
      const key = `${dir}:${id ?? WORKSPACE_KEY}`
      const existing = cache.get(key)
@@ -259,10 +260,13 @@ export const { use: usePrompt, provider: PromptProvider } = createSimpleContext(
        return existing.value
      }

-      const entry = createRoot((dispose) => ({
-        value: createPromptSession(dir, id),
-        dispose,
-      }))
+      const entry = createRoot(
+        (dispose) => ({
+          value: createPromptSession(dir, id),
+          dispose,
+        }),
+        owner,
+      )

      cache.set(key, entry)
      prune()
--- a/packages/app/src/pages/session/terminal-panel.tsx
+++ b/packages/app/src/pages/session/terminal-panel.tsx
@@ -18,8 +18,10 @@ import { terminalTabLabel } from "@/pages/session/terminal-label"
 import { createSizing, focusTerminalById } from "@/pages/session/helpers"
 import { getTerminalHandoff, setTerminalHandoff } from "@/pages/session/handoff"
 import { useSessionLayout } from "@/pages/session/session-layout"
+import { terminalProbe } from "@/testing/terminal"

 export function TerminalPanel() {
+  const delays = [120, 240]
  const layout = useLayout()
  const terminal = useTerminal()
  const language = useLanguage()
@@ -79,16 +81,20 @@ export function TerminalPanel() {
  )

  const focus = (id: string) => {
+    const probe = terminalProbe(id)
+    probe.focus(delays.length + 1)
    focusTerminalById(id)

    const frame = requestAnimationFrame(() => {
+      probe.step()
      if (!opened()) return
      if (terminal.active() !== id) return
      focusTerminalById(id)
    })

-    const timers = [120, 240].map((ms) =>
+    const timers = delays.map((ms) =>
      window.setTimeout(() => {
+        probe.step()
        if (!opened()) return
        if (terminal.active() !== id) return
        focusTerminalById(id)
@@ -96,6 +102,7 @@ export function TerminalPanel() {
    )

    return () => {
+      probe.focus(0)
      cancelAnimationFrame(frame)
      for (const timer of timers) clearTimeout(timer)
    }
--- a/packages/app/src/testing/prompt.ts
+++ b/packages/app/src/testing/prompt.ts
@@ -0,0 +1,56 @@
+import type { E2EWindow } from "./terminal"
+
+export type PromptProbeState = {
+  popover: "at" | "slash" | null
+  slash: {
+    active: string | null
+    ids: string[]
+  }
+  selected: string | null
+  selects: number
+}
+
+export const promptEnabled = () => {
+  if (typeof window === "undefined") return false
+  return (window as E2EWindow).__opencode_e2e?.prompt?.enabled === true
+}
+
+const root = () => {
+  if (!promptEnabled()) return
+  return (window as E2EWindow).__opencode_e2e?.prompt
+}
+
+export const promptProbe = {
+  set(input: Omit<PromptProbeState, "selected" | "selects">) {
+    const state = root()
+    if (!state) return
+    state.current = {
+      popover: input.popover,
+      slash: {
+        active: input.slash.active,
+        ids: [...input.slash.ids],
+      },
+      selected: state.current?.selected ?? null,
+      selects: state.current?.selects ?? 0,
+    }
+  },
+  select(id: string) {
+    const state = root()
+    if (!state) return
+    const prev = state.current
+    state.current = {
+      popover: prev?.popover ?? null,
+      slash: {
+        active: prev?.slash.active ?? null,
+        ids: [...(prev?.slash.ids ?? [])],
+      },
+      selected: id,
+      selects: (prev?.selects ?? 0) + 1,
+    }
+  },
+  clear() {
+    const state = root()
+    if (!state) return
+    state.current = undefined
+  },
+}
--- a/packages/app/src/testing/terminal.ts
+++ b/packages/app/src/testing/terminal.ts
@@ -7,6 +7,7 @@ export type TerminalProbeState = {
  connects: number
  rendered: string
  settled: number
+  focusing: number
 }

 type TerminalProbeControl = {
@@ -19,6 +20,10 @@ export type E2EWindow = Window & {
      enabled?: boolean
      current?: ModelProbeState
    }
+    prompt?: {
+      enabled?: boolean
+      current?: import("./prompt").PromptProbeState
+    }
    terminal?: {
      enabled?: boolean
      terminals?: Record<string, TerminalProbeState>
@@ -32,6 +37,7 @@ const seed = (): TerminalProbeState => ({
  connects: 0,
  rendered: "",
  settled: 0,
+  focusing: 0,
 })

 const root = () => {
@@ -88,6 +94,15 @@ export const terminalProbe = (id: string) => {
      const prev = state[id] ?? seed()
      state[id] = { ...prev, settled: prev.settled + 1 }
    },
+    focus(count: number) {
+      set({ focusing: Math.max(0, count) })
+    },
+    step() {
+      const state = terms()
+      if (!state) return
+      const prev = state[id] ?? seed()
+      state[id] = { ...prev, focusing: Math.max(0, prev.focusing - 1) }
+    },
    control(next: Partial<TerminalProbeControl>) {
      const state = controls()
      if (!state) return
--- a/packages/console/app/package.json
+++ b/packages/console/app/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/console-app",
-  "version": "1.2.26",
+  "version": "1.2.27",
  "type": "module",
  "license": "MIT",
  "scripts": {
--- a/packages/console/core/package.json
+++ b/packages/console/core/package.json
@@ -1,7 +1,7 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
  "name": "@opencode-ai/console-core",
-  "version": "1.2.26",
+  "version": "1.2.27",
  "private": true,
  "type": "module",
  "license": "MIT",
--- a/packages/console/function/package.json
+++ b/packages/console/function/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/console-function",
-  "version": "1.2.26",
+  "version": "1.2.27",
  "$schema": "https://json.schemastore.org/package.json",
  "private": true,
  "type": "module",
--- a/packages/console/mail/package.json
+++ b/packages/console/mail/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/console-mail",
-  "version": "1.2.26",
+  "version": "1.2.27",
  "dependencies": {
    "@jsx-email/all": "2.2.3",
    "@jsx-email/cli": "1.4.3",
--- a/packages/desktop-electron/package.json
+++ b/packages/desktop-electron/package.json
@@ -1,7 +1,7 @@
 {
  "name": "@opencode-ai/desktop-electron",
  "private": true,
-  "version": "1.2.26",
+  "version": "1.2.27",
  "type": "module",
  "license": "MIT",
  "homepage": "https://opencode.ai",
--- a/packages/desktop/package.json
+++ b/packages/desktop/package.json
@@ -1,7 +1,7 @@
 {
  "name": "@opencode-ai/desktop",
  "private": true,
-  "version": "1.2.26",
+  "version": "1.2.27",
  "type": "module",
  "license": "MIT",
  "scripts": {
--- a/packages/enterprise/package.json
+++ b/packages/enterprise/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/enterprise",
-  "version": "1.2.26",
+  "version": "1.2.27",
  "private": true,
  "type": "module",
  "license": "MIT",
--- a/packages/extensions/zed/extension.toml
+++ b/packages/extensions/zed/extension.toml
@@ -1,7 +1,7 @@
 id = "opencode"
 name = "OpenCode"
 description = "The open source coding agent."
-version = "1.2.26"
+version = "1.2.27"
 schema_version = 1
 authors = ["Anomaly"]
 repository = "https://github.com/anomalyco/opencode"
@@ -11,26 +11,26 @@ name = "OpenCode"
 icon = "./icons/opencode.svg"

 [agent_servers.opencode.targets.darwin-aarch64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.26/opencode-darwin-arm64.zip"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.27/opencode-darwin-arm64.zip"
 cmd = "./opencode"
 args = ["acp"]

 [agent_servers.opencode.targets.darwin-x86_64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.26/opencode-darwin-x64.zip"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.27/opencode-darwin-x64.zip"
 cmd = "./opencode"
 args = ["acp"]

 [agent_servers.opencode.targets.linux-aarch64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.26/opencode-linux-arm64.tar.gz"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.27/opencode-linux-arm64.tar.gz"
 cmd = "./opencode"
 args = ["acp"]

 [agent_servers.opencode.targets.linux-x86_64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.26/opencode-linux-x64.tar.gz"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.27/opencode-linux-x64.tar.gz"
 cmd = "./opencode"
 args = ["acp"]

 [agent_servers.opencode.targets.windows-x86_64]
-archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.26/opencode-windows-x64.zip"
+archive = "https://github.com/anomalyco/opencode/releases/download/v1.2.27/opencode-windows-x64.zip"
 cmd = "./opencode.exe"
 args = ["acp"]
--- a/packages/function/package.json
+++ b/packages/function/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@opencode-ai/function",
-  "version": "1.2.26",
+  "version": "1.2.27",
  "$schema": "https://json.schemastore.org/package.json",
  "private": true,
  "type": "module",
--- a/packages/opencode/AGENTS.md
+++ b/packages/opencode/AGENTS.md
@@ -34,6 +34,7 @@ Instructions to follow when writing Effect.
 - Use `Effect.gen(function* () { ... })` for composition.
 - Use `Effect.fn("ServiceName.method")` for named/traced effects and `Effect.fnUntraced` for internal helpers.
 - `Effect.fn` / `Effect.fnUntraced` accept pipeable operators as extra arguments, so avoid unnecessary `flow` or outer `.pipe()` wrappers.
+- **`Effect.callback`** (not `Effect.async`) for callback-based APIs. The classic `Effect.async` was renamed to `Effect.callback` in effect-smol/v4.

 ## Time

@@ -42,3 +43,37 @@ Instructions to follow when writing Effect.
 ## Errors

 - In `Effect.gen/fn`, prefer `yield* new MyError(...)` over `yield* Effect.fail(new MyError(...))` for direct early-failure branches.
+
+## Instance-scoped Effect services
+
+Services that need per-directory lifecycle (created/destroyed per instance) go through the `Instances` LayerMap:
+
+1. Define a `ServiceMap.Service` with a `static readonly layer` (see `FileWatcherService`, `QuestionService`, `PermissionService`, `ProviderAuthService`).
+2. Add it to `InstanceServices` union and `Layer.mergeAll(...)` in `src/effect/instances.ts`.
+3. Use `InstanceContext` inside the layer to read `directory` and `project` instead of `Instance.*` globals.
+4. Call from legacy code via `runPromiseInstance(MyService.use((s) => s.method()))`.
+
+### Instance.bind — ALS context for native callbacks
+
+`Instance.bind(fn)` captures the current Instance AsyncLocalStorage context and returns a wrapper that restores it synchronously when called.
+
+**Use it** when passing callbacks to native C/C++ addons (`@parcel/watcher`, `node-pty`, native `fs.watch`, etc.) that need to call `Bus.publish`, `Instance.state()`, or anything that reads `Instance.directory`.
+
+**Don't need it** for `setTimeout`, `Promise.then`, `EventEmitter.on`, or Effect fibers — Node.js ALS propagates through those automatically.
+
+```typescript
+// Native addon callback — needs Instance.bind
+const cb = Instance.bind((err, evts) => {
+  Bus.publish(MyEvent, { ... })
+})
+nativeAddon.subscribe(dir, cb)
+```
+
+## Flag → Effect.Config migration
+
+Flags in `src/flag/flag.ts` are being migrated from static `truthy(...)` reads to `Config.boolean(...).pipe(Config.withDefault(false))` as their consumers get effectified.
+
+- Effectful flags return `Config<boolean>` and are read with `yield*` inside `Effect.gen`.
+- The default `ConfigProvider` reads from `process.env`, so env vars keep working.
+- Tests can override via `ConfigProvider.layer(ConfigProvider.fromUnknown({ ... }))`.
+- Keep all flags in `flag.ts` as the single registry — just change the implementation from `truthy()` to `Config.boolean()` when the consumer moves to Effect.
--- a/packages/opencode/package.json
+++ b/packages/opencode/package.json
@@ -1,6 +1,6 @@
 {
  "$schema": "https://json.schemastore.org/package.json",
-  "version": "1.2.26",
+  "version": "1.2.27",
  "name": "opencode",
  "type": "module",
  "license": "MIT",
@@ -95,6 +95,7 @@
    "@openrouter/ai-sdk-provider": "1.5.4",
    "@opentui/core": "0.1.87",
    "@opentui/solid": "0.1.87",
+    "@effect/platform-node": "4.0.0-beta.31",
    "@parcel/watcher": "2.5.1",
    "@pierre/diffs": "catalog:",
    "@solid-primitives/event-bus": "1.1.2",
--- a/packages/opencode/script/seed-e2e.ts
+++ b/packages/opencode/script/seed-e2e.ts
@@ -11,46 +11,52 @@ const seed = async () => {
  const { Instance } = await import("../src/project/instance")
  const { InstanceBootstrap } = await import("../src/project/bootstrap")
  const { Config } = await import("../src/config/config")
+  const { disposeRuntime } = await import("../src/effect/runtime")
  const { Session } = await import("../src/session")
  const { MessageID, PartID } = await import("../src/session/schema")
  const { Project } = await import("../src/project/project")
  const { ModelID, ProviderID } = await import("../src/provider/schema")
  const { ToolRegistry } = await import("../src/tool/registry")

-  await Instance.provide({
-    directory: dir,
-    init: InstanceBootstrap,
-    fn: async () => {
-      await Config.waitForDependencies()
-      await ToolRegistry.ids()
+  try {
+    await Instance.provide({
+      directory: dir,
+      init: InstanceBootstrap,
+      fn: async () => {
+        await Config.waitForDependencies()
+        await ToolRegistry.ids()

-      const session = await Session.create({ title })
-      const messageID = MessageID.ascending()
-      const partID = PartID.ascending()
-      const message = {
-        id: messageID,
-        sessionID: session.id,
-        role: "user" as const,
-        time: { created: now },
-        agent: "build",
-        model: {
-          providerID: ProviderID.make(providerID),
-          modelID: ModelID.make(modelID),
-        },
-      }
-      const part = {
-        id: partID,
-        sessionID: session.id,
-        messageID,
-        type: "text" as const,
-        text,
-        time: { start: now },
-      }
-      await Session.updateMessage(message)
-      await Session.updatePart(part)
-      await Project.update({ projectID: Instance.project.id, name: "E2E Project" })
-    },
-  })
+        const session = await Session.create({ title })
+        const messageID = MessageID.ascending()
+        const partID = PartID.ascending()
+        const message = {
+          id: messageID,
+          sessionID: session.id,
+          role: "user" as const,
+          time: { created: now },
+          agent: "build",
+          model: {
+            providerID: ProviderID.make(providerID),
+            modelID: ModelID.make(modelID),
+          },
+        }
+        const part = {
+          id: partID,
+          sessionID: session.id,
+          messageID,
+          type: "text" as const,
+          text,
+          time: { start: now },
+        }
+        await Session.updateMessage(message)
+        await Session.updatePart(part)
+        await Project.update({ projectID: Instance.project.id, name: "E2E Project" })
+      },
+    })
+  } finally {
+    await Instance.disposeAll().catch(() => {})
+    await disposeRuntime().catch(() => {})
+  }
 }

 await seed()
--- a/packages/opencode/src/account/effect.ts
+++ b/packages/opencode/src/account/effect.ts
@@ -0,0 +1,355 @@
+import { Clock, Duration, Effect, Layer, Option, Schema, SchemaGetter, ServiceMap } from "effect"
+import { FetchHttpClient, HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+
+import { withTransientReadRetry } from "@/util/effect-http-client"
+import { AccountRepo, type AccountRow } from "./repo"
+import {
+  type AccountError as SchemaError,
+  AccessToken as SchemaAccessToken,
+  Account as SchemaAccount,
+  AccountID as SchemaAccountID,
+  DeviceCode as SchemaDeviceCode,
+  RefreshToken as SchemaRefreshToken,
+  AccountServiceError as SchemaServiceError,
+  Login as SchemaLogin,
+  Org as SchemaOrg,
+  OrgID as SchemaOrgID,
+  PollDenied as SchemaPollDenied,
+  PollError as SchemaPollError,
+  PollExpired as SchemaPollExpired,
+  PollPending as SchemaPollPending,
+  type PollResult as SchemaPollResult,
+  PollSlow as SchemaPollSlow,
+  PollSuccess as SchemaPollSuccess,
+  UserCode as SchemaUserCode,
+} from "./schema"
+
+export namespace AccountEffect {
+  export type Error = SchemaError
+
+  const AccessToken = SchemaAccessToken
+  type AccessToken = SchemaAccessToken
+  const Account = SchemaAccount
+  type Account = SchemaAccount
+  const AccountID = SchemaAccountID
+  type AccountID = SchemaAccountID
+  const DeviceCode = SchemaDeviceCode
+  type DeviceCode = SchemaDeviceCode
+  const RefreshToken = SchemaRefreshToken
+  type RefreshToken = SchemaRefreshToken
+  const Login = SchemaLogin
+  type Login = SchemaLogin
+  const Org = SchemaOrg
+  type Org = SchemaOrg
+  const OrgID = SchemaOrgID
+  type OrgID = SchemaOrgID
+  const PollDenied = SchemaPollDenied
+  const PollError = SchemaPollError
+  const PollExpired = SchemaPollExpired
+  const PollPending = SchemaPollPending
+  const PollSlow = SchemaPollSlow
+  const PollSuccess = SchemaPollSuccess
+  const UserCode = SchemaUserCode
+  type PollResult = SchemaPollResult
+
+  export type AccountOrgs = {
+    account: Account
+    orgs: readonly Org[]
+  }
+
+  class RemoteConfig extends Schema.Class<RemoteConfig>("RemoteConfig")({
+    config: Schema.Record(Schema.String, Schema.Json),
+  }) {}
+
+  const DurationFromSeconds = Schema.Number.pipe(
+    Schema.decodeTo(Schema.Duration, {
+      decode: SchemaGetter.transform((n) => Duration.seconds(n)),
+      encode: SchemaGetter.transform((d) => Duration.toSeconds(d)),
+    }),
+  )
+
+  class TokenRefresh extends Schema.Class<TokenRefresh>("TokenRefresh")({
+    access_token: AccessToken,
+    refresh_token: RefreshToken,
+    expires_in: DurationFromSeconds,
+  }) {}
+
+  class DeviceAuth extends Schema.Class<DeviceAuth>("DeviceAuth")({
+    device_code: DeviceCode,
+    user_code: UserCode,
+    verification_uri_complete: Schema.String,
+    expires_in: DurationFromSeconds,
+    interval: DurationFromSeconds,
+  }) {}
+
+  class DeviceTokenSuccess extends Schema.Class<DeviceTokenSuccess>("DeviceTokenSuccess")({
+    access_token: AccessToken,
+    refresh_token: RefreshToken,
+    token_type: Schema.Literal("Bearer"),
+    expires_in: DurationFromSeconds,
+  }) {}
+
+  class DeviceTokenError extends Schema.Class<DeviceTokenError>("DeviceTokenError")({
+    error: Schema.String,
+    error_description: Schema.String,
+  }) {
+    toPollResult(): PollResult {
+      if (this.error === "authorization_pending") return new PollPending()
+      if (this.error === "slow_down") return new PollSlow()
+      if (this.error === "expired_token") return new PollExpired()
+      if (this.error === "access_denied") return new PollDenied()
+      return new PollError({ cause: this.error })
+    }
+  }
+
+  const DeviceToken = Schema.Union([DeviceTokenSuccess, DeviceTokenError])
+
+  class User extends Schema.Class<User>("User")({
+    id: AccountID,
+    email: Schema.String,
+  }) {}
+
+  class ClientId extends Schema.Class<ClientId>("ClientId")({ client_id: Schema.String }) {}
+
+  class DeviceTokenRequest extends Schema.Class<DeviceTokenRequest>("DeviceTokenRequest")({
+    grant_type: Schema.String,
+    device_code: DeviceCode,
+    client_id: Schema.String,
+  }) {}
+
+  class TokenRefreshRequest extends Schema.Class<TokenRefreshRequest>("TokenRefreshRequest")({
+    grant_type: Schema.String,
+    refresh_token: RefreshToken,
+    client_id: Schema.String,
+  }) {}
+
+  const client_id = "opencode-cli"
+
+  const map =
+    (message = "Account service operation failed") =>
+    <A, E, R>(effect: Effect.Effect<A, E, R>): Effect.Effect<A, SchemaServiceError, R> =>
+      effect.pipe(
+        Effect.mapError((cause) =>
+          cause instanceof SchemaServiceError ? cause : new SchemaServiceError({ message, cause }),
+        ),
+      )
+
+  export interface Interface {
+    readonly active: () => Effect.Effect<Option.Option<Account>, Error>
+    readonly list: () => Effect.Effect<Account[], Error>
+    readonly orgsByAccount: () => Effect.Effect<readonly AccountOrgs[], Error>
+    readonly remove: (accountID: AccountID) => Effect.Effect<void, Error>
+    readonly use: (accountID: AccountID, orgID: Option.Option<OrgID>) => Effect.Effect<void, Error>
+    readonly orgs: (accountID: AccountID) => Effect.Effect<readonly Org[], Error>
+    readonly config: (accountID: AccountID, orgID: OrgID) => Effect.Effect<Option.Option<Record<string, unknown>>, Error>
+    readonly token: (accountID: AccountID) => Effect.Effect<Option.Option<AccessToken>, Error>
+    readonly login: (url: string) => Effect.Effect<Login, Error>
+    readonly poll: (input: Login) => Effect.Effect<PollResult, Error>
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/Account") {}
+
+  export const layer: Layer.Layer<Service, never, AccountRepo | HttpClient.HttpClient> = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const repo = yield* AccountRepo
+      const http = yield* HttpClient.HttpClient
+      const httpRead = withTransientReadRetry(http)
+      const httpOk = HttpClient.filterStatusOk(http)
+      const httpReadOk = HttpClient.filterStatusOk(httpRead)
+
+      const executeRead = (request: HttpClientRequest.HttpClientRequest) =>
+        httpRead.execute(request).pipe(map("HTTP request failed"))
+
+      const executeReadOk = (request: HttpClientRequest.HttpClientRequest) =>
+        httpReadOk.execute(request).pipe(map("HTTP request failed"))
+
+      const executeEffectOk = <E>(request: Effect.Effect<HttpClientRequest.HttpClientRequest, E>) =>
+        request.pipe(
+          Effect.flatMap((req) => httpOk.execute(req)),
+          map("HTTP request failed"),
+        )
+
+      const resolveToken = Effect.fnUntraced(function* (row: AccountRow) {
+        const now = yield* Clock.currentTimeMillis
+        if (row.token_expiry && row.token_expiry > now) return row.access_token
+
+        const response = yield* executeEffectOk(
+          HttpClientRequest.post(`${row.url}/auth/device/token`).pipe(
+            HttpClientRequest.acceptJson,
+            HttpClientRequest.schemaBodyJson(TokenRefreshRequest)(
+              new TokenRefreshRequest({
+                grant_type: "refresh_token",
+                refresh_token: row.refresh_token,
+                client_id,
+              }),
+            ),
+          ),
+        )
+
+        const parsed = yield* HttpClientResponse.schemaBodyJson(TokenRefresh)(response).pipe(
+          map("Failed to decode response"),
+        )
+
+        const expiry = Option.some(now + Duration.toMillis(parsed.expires_in))
+
+        yield* repo.persistToken({
+          accountID: row.id,
+          accessToken: parsed.access_token,
+          refreshToken: parsed.refresh_token,
+          expiry,
+        })
+
+        return parsed.access_token
+      })
+
+      const resolveAccess = Effect.fnUntraced(function* (accountID: AccountID) {
+        const maybe = yield* repo.getRow(accountID)
+        if (Option.isNone(maybe)) return Option.none()
+
+        const account = maybe.value
+        const accessToken = yield* resolveToken(account)
+        return Option.some({ account, accessToken })
+      })
+
+      const fetchOrgs = Effect.fnUntraced(function* (url: string, accessToken: AccessToken) {
+        const response = yield* executeReadOk(
+          HttpClientRequest.get(`${url}/api/orgs`).pipe(
+            HttpClientRequest.acceptJson,
+            HttpClientRequest.bearerToken(accessToken),
+          ),
+        )
+
+        return yield* HttpClientResponse.schemaBodyJson(Schema.Array(Org))(response).pipe(
+          map("Failed to decode response"),
+        )
+      })
+
+      const fetchUser = Effect.fnUntraced(function* (url: string, accessToken: AccessToken) {
+        const response = yield* executeReadOk(
+          HttpClientRequest.get(`${url}/api/user`).pipe(
+            HttpClientRequest.acceptJson,
+            HttpClientRequest.bearerToken(accessToken),
+          ),
+        )
+
+        return yield* HttpClientResponse.schemaBodyJson(User)(response).pipe(map("Failed to decode response"))
+      })
+
+      const token = Effect.fn("Account.token")((accountID: AccountID) =>
+        resolveAccess(accountID).pipe(Effect.map(Option.map((r) => r.accessToken))),
+      )
+
+      const orgs = Effect.fn("Account.orgs")(function* (accountID: AccountID) {
+        const resolved = yield* resolveAccess(accountID)
+        if (Option.isNone(resolved)) return []
+
+        return yield* fetchOrgs(resolved.value.account.url, resolved.value.accessToken)
+      })
+
+      const orgsByAccount = Effect.fn("Account.orgsByAccount")(function* () {
+        const accounts = yield* repo.list()
+        const [errors, results] = yield* Effect.partition(
+          accounts,
+          (account) => orgs(account.id).pipe(Effect.map((orgs) => ({ account, orgs }))),
+          { concurrency: 3 },
+        )
+        for (const err of errors) {
+          yield* Effect.logWarning("failed to fetch orgs for account").pipe(Effect.annotateLogs({ error: String(err) }))
+        }
+        return results
+      })
+
+      const config = Effect.fn("Account.config")(function* (accountID: AccountID, orgID: OrgID) {
+        const resolved = yield* resolveAccess(accountID)
+        if (Option.isNone(resolved)) return Option.none()
+
+        const response = yield* executeRead(
+          HttpClientRequest.get(`${resolved.value.account.url}/api/config`).pipe(
+            HttpClientRequest.acceptJson,
+            HttpClientRequest.bearerToken(resolved.value.accessToken),
+            HttpClientRequest.setHeaders({ "x-org-id": orgID }),
+          ),
+        )
+
+        if (response.status === 404) return Option.none()
+
+        const ok = yield* HttpClientResponse.filterStatusOk(response).pipe(map())
+        const parsed = yield* HttpClientResponse.schemaBodyJson(RemoteConfig)(ok).pipe(map("Failed to decode response"))
+        return Option.some(parsed.config)
+      })
+
+      const login = Effect.fn("Account.login")(function* (server: string) {
+        const response = yield* executeEffectOk(
+          HttpClientRequest.post(`${server}/auth/device/code`).pipe(
+            HttpClientRequest.acceptJson,
+            HttpClientRequest.schemaBodyJson(ClientId)(new ClientId({ client_id })),
+          ),
+        )
+
+        const parsed = yield* HttpClientResponse.schemaBodyJson(DeviceAuth)(response).pipe(map("Failed to decode response"))
+        return new Login({
+          code: parsed.device_code,
+          user: parsed.user_code,
+          url: `${server}${parsed.verification_uri_complete}`,
+          server,
+          expiry: parsed.expires_in,
+          interval: parsed.interval,
+        })
+      })
+
+      const poll = Effect.fn("Account.poll")(function* (input: Login) {
+        const response = yield* executeEffectOk(
+          HttpClientRequest.post(`${input.server}/auth/device/token`).pipe(
+            HttpClientRequest.acceptJson,
+            HttpClientRequest.schemaBodyJson(DeviceTokenRequest)(
+              new DeviceTokenRequest({
+                grant_type: "urn:ietf:params:oauth:grant-type:device_code",
+                device_code: input.code,
+                client_id,
+              }),
+            ),
+          ),
+        )
+
+        const parsed = yield* HttpClientResponse.schemaBodyJson(DeviceToken)(response).pipe(map("Failed to decode response"))
+        if (parsed instanceof DeviceTokenError) return parsed.toPollResult()
+
+        const [account, remoteOrgs] = yield* Effect.all(
+          [fetchUser(input.server, parsed.access_token), fetchOrgs(input.server, parsed.access_token)],
+          { concurrency: 2 },
+        )
+
+        const first = remoteOrgs.length > 0 ? Option.some(remoteOrgs[0].id) : Option.none<OrgID>()
+        const expiry = (yield* Clock.currentTimeMillis) + Duration.toMillis(parsed.expires_in)
+
+        yield* repo.persistAccount({
+          id: account.id,
+          email: account.email,
+          url: input.server,
+          accessToken: parsed.access_token,
+          refreshToken: parsed.refresh_token,
+          expiry,
+          orgID: first,
+        })
+
+        return new PollSuccess({ email: account.email })
+      })
+
+      return Service.of({
+        active: repo.active,
+        list: repo.list,
+        orgsByAccount,
+        remove: repo.remove,
+        use: repo.use,
+        orgs,
+        config,
+        token,
+        login,
+        poll,
+      })
+    }),
+  )
+
+  export const defaultLayer = layer.pipe(Layer.provide(AccountRepo.layer), Layer.provide(FetchHttpClient.layer))
+}
--- a/packages/opencode/src/account/index.ts
+++ b/packages/opencode/src/account/index.ts
@@ -1,27 +1,33 @@
 import { Effect, Option } from "effect"

+import { AccountEffect } from "./effect"
 import {
+  AccessToken as Token,
  Account as AccountSchema,
  type AccountError,
-  type AccessToken,
-  AccountID,
-  AccountService,
-  OrgID,
-} from "./service"
-
-export { AccessToken, AccountID, OrgID } from "./service"
+  AccountID as ID,
+  OrgID as Org,
+} from "./schema"

 import { runtime } from "@/effect/runtime"

-function runSync<A>(f: (service: AccountService.Service) => Effect.Effect<A, AccountError>) {
-  return runtime.runSync(AccountService.use(f))
+export { AccessToken, AccountID, OrgID } from "./schema"
+
+function runSync<A>(f: (service: AccountEffect.Interface) => Effect.Effect<A, AccountEffect.Error>) {
+  return runtime.runSync(AccountEffect.Service.use(f))
 }

-function runPromise<A>(f: (service: AccountService.Service) => Effect.Effect<A, AccountError>) {
-  return runtime.runPromise(AccountService.use(f))
+function runPromise<A>(f: (service: AccountEffect.Interface) => Effect.Effect<A, AccountError>) {
+  return runtime.runPromise(AccountEffect.Service.use(f))
 }

 export namespace Account {
+  export const AccessToken = Token
+  export type AccessToken = Token
+  export const AccountID = ID
+  export type AccountID = ID
+  export const OrgID = Org
+  export type OrgID = Org
  export const Account = AccountSchema
  export type Account = AccountSchema

--- a/packages/opencode/src/account/service.ts
+++ b/packages/opencode/src/account/service.ts
@@ -1,359 +0,0 @@
-import { Clock, Duration, Effect, Layer, Option, Schema, SchemaGetter, ServiceMap } from "effect"
-import { FetchHttpClient, HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
-
-import { withTransientReadRetry } from "@/util/effect-http-client"
-import { AccountRepo, type AccountRow } from "./repo"
-import {
-  type AccountError,
-  AccessToken,
-  Account,
-  AccountID,
-  DeviceCode,
-  RefreshToken,
-  AccountServiceError,
-  Login,
-  Org,
-  OrgID,
-  PollDenied,
-  PollError,
-  PollExpired,
-  PollPending,
-  type PollResult,
-  PollSlow,
-  PollSuccess,
-  UserCode,
-} from "./schema"
-
-export * from "./schema"
-
-export type AccountOrgs = {
-  account: Account
-  orgs: readonly Org[]
-}
-
-class RemoteConfig extends Schema.Class<RemoteConfig>("RemoteConfig")({
-  config: Schema.Record(Schema.String, Schema.Json),
-}) {}
-
-const DurationFromSeconds = Schema.Number.pipe(
-  Schema.decodeTo(Schema.Duration, {
-    decode: SchemaGetter.transform((n) => Duration.seconds(n)),
-    encode: SchemaGetter.transform((d) => Duration.toSeconds(d)),
-  }),
-)
-
-class TokenRefresh extends Schema.Class<TokenRefresh>("TokenRefresh")({
-  access_token: AccessToken,
-  refresh_token: RefreshToken,
-  expires_in: DurationFromSeconds,
-}) {}
-
-class DeviceAuth extends Schema.Class<DeviceAuth>("DeviceAuth")({
-  device_code: DeviceCode,
-  user_code: UserCode,
-  verification_uri_complete: Schema.String,
-  expires_in: DurationFromSeconds,
-  interval: DurationFromSeconds,
-}) {}
-
-class DeviceTokenSuccess extends Schema.Class<DeviceTokenSuccess>("DeviceTokenSuccess")({
-  access_token: AccessToken,
-  refresh_token: RefreshToken,
-  token_type: Schema.Literal("Bearer"),
-  expires_in: DurationFromSeconds,
-}) {}
-
-class DeviceTokenError extends Schema.Class<DeviceTokenError>("DeviceTokenError")({
-  error: Schema.String,
-  error_description: Schema.String,
-}) {
-  toPollResult(): PollResult {
-    if (this.error === "authorization_pending") return new PollPending()
-    if (this.error === "slow_down") return new PollSlow()
-    if (this.error === "expired_token") return new PollExpired()
-    if (this.error === "access_denied") return new PollDenied()
-    return new PollError({ cause: this.error })
-  }
-}
-
-const DeviceToken = Schema.Union([DeviceTokenSuccess, DeviceTokenError])
-
-class User extends Schema.Class<User>("User")({
-  id: AccountID,
-  email: Schema.String,
-}) {}
-
-class ClientId extends Schema.Class<ClientId>("ClientId")({ client_id: Schema.String }) {}
-
-class DeviceTokenRequest extends Schema.Class<DeviceTokenRequest>("DeviceTokenRequest")({
-  grant_type: Schema.String,
-  device_code: DeviceCode,
-  client_id: Schema.String,
-}) {}
-
-class TokenRefreshRequest extends Schema.Class<TokenRefreshRequest>("TokenRefreshRequest")({
-  grant_type: Schema.String,
-  refresh_token: RefreshToken,
-  client_id: Schema.String,
-}) {}
-
-const clientId = "opencode-cli"
-
-const mapAccountServiceError =
-  (message = "Account service operation failed") =>
-  <A, E, R>(effect: Effect.Effect<A, E, R>): Effect.Effect<A, AccountServiceError, R> =>
-    effect.pipe(
-      Effect.mapError((cause) =>
-        cause instanceof AccountServiceError ? cause : new AccountServiceError({ message, cause }),
-      ),
-    )
-
-export namespace AccountService {
-  export interface Service {
-    readonly active: () => Effect.Effect<Option.Option<Account>, AccountError>
-    readonly list: () => Effect.Effect<Account[], AccountError>
-    readonly orgsByAccount: () => Effect.Effect<readonly AccountOrgs[], AccountError>
-    readonly remove: (accountID: AccountID) => Effect.Effect<void, AccountError>
-    readonly use: (accountID: AccountID, orgID: Option.Option<OrgID>) => Effect.Effect<void, AccountError>
-    readonly orgs: (accountID: AccountID) => Effect.Effect<readonly Org[], AccountError>
-    readonly config: (
-      accountID: AccountID,
-      orgID: OrgID,
-    ) => Effect.Effect<Option.Option<Record<string, unknown>>, AccountError>
-    readonly token: (accountID: AccountID) => Effect.Effect<Option.Option<AccessToken>, AccountError>
-    readonly login: (url: string) => Effect.Effect<Login, AccountError>
-    readonly poll: (input: Login) => Effect.Effect<PollResult, AccountError>
-  }
-}
-
-export class AccountService extends ServiceMap.Service<AccountService, AccountService.Service>()("@opencode/Account") {
-  static readonly layer: Layer.Layer<AccountService, never, AccountRepo | HttpClient.HttpClient> = Layer.effect(
-    AccountService,
-    Effect.gen(function* () {
-      const repo = yield* AccountRepo
-      const http = yield* HttpClient.HttpClient
-      const httpRead = withTransientReadRetry(http)
-      const httpOk = HttpClient.filterStatusOk(http)
-      const httpReadOk = HttpClient.filterStatusOk(httpRead)
-
-      const executeRead = (request: HttpClientRequest.HttpClientRequest) =>
-        httpRead.execute(request).pipe(mapAccountServiceError("HTTP request failed"))
-
-      const executeReadOk = (request: HttpClientRequest.HttpClientRequest) =>
-        httpReadOk.execute(request).pipe(mapAccountServiceError("HTTP request failed"))
-
-      const executeEffectOk = <E>(request: Effect.Effect<HttpClientRequest.HttpClientRequest, E>) =>
-        request.pipe(
-          Effect.flatMap((req) => httpOk.execute(req)),
-          mapAccountServiceError("HTTP request failed"),
-        )
-
-      // Returns a usable access token for a stored account row, refreshing and
-      // persisting it when the cached token has expired.
-      const resolveToken = Effect.fnUntraced(function* (row: AccountRow) {
-        const now = yield* Clock.currentTimeMillis
-        if (row.token_expiry && row.token_expiry > now) return row.access_token
-
-        const response = yield* executeEffectOk(
-          HttpClientRequest.post(`${row.url}/auth/device/token`).pipe(
-            HttpClientRequest.acceptJson,
-            HttpClientRequest.schemaBodyJson(TokenRefreshRequest)(
-              new TokenRefreshRequest({
-                grant_type: "refresh_token",
-                refresh_token: row.refresh_token,
-                client_id: clientId,
-              }),
-            ),
-          ),
-        )
-
-        const parsed = yield* HttpClientResponse.schemaBodyJson(TokenRefresh)(response).pipe(
-          mapAccountServiceError("Failed to decode response"),
-        )
-
-        const expiry = Option.some(now + Duration.toMillis(parsed.expires_in))
-
-        yield* repo.persistToken({
-          accountID: row.id,
-          accessToken: parsed.access_token,
-          refreshToken: parsed.refresh_token,
-          expiry,
-        })
-
-        return parsed.access_token
-      })
-
-      const resolveAccess = Effect.fnUntraced(function* (accountID: AccountID) {
-        const maybeAccount = yield* repo.getRow(accountID)
-        if (Option.isNone(maybeAccount)) return Option.none()
-
-        const account = maybeAccount.value
-        const accessToken = yield* resolveToken(account)
-        return Option.some({ account, accessToken })
-      })
-
-      const fetchOrgs = Effect.fnUntraced(function* (url: string, accessToken: AccessToken) {
-        const response = yield* executeReadOk(
-          HttpClientRequest.get(`${url}/api/orgs`).pipe(
-            HttpClientRequest.acceptJson,
-            HttpClientRequest.bearerToken(accessToken),
-          ),
-        )
-
-        return yield* HttpClientResponse.schemaBodyJson(Schema.Array(Org))(response).pipe(
-          mapAccountServiceError("Failed to decode response"),
-        )
-      })
-
-      const fetchUser = Effect.fnUntraced(function* (url: string, accessToken: AccessToken) {
-        const response = yield* executeReadOk(
-          HttpClientRequest.get(`${url}/api/user`).pipe(
-            HttpClientRequest.acceptJson,
-            HttpClientRequest.bearerToken(accessToken),
-          ),
-        )
-
-        return yield* HttpClientResponse.schemaBodyJson(User)(response).pipe(
-          mapAccountServiceError("Failed to decode response"),
-        )
-      })
-
-      const token = Effect.fn("AccountService.token")((accountID: AccountID) =>
-        resolveAccess(accountID).pipe(Effect.map(Option.map((r) => r.accessToken))),
-      )
-
-      const orgsByAccount = Effect.fn("AccountService.orgsByAccount")(function* () {
-        const accounts = yield* repo.list()
-        const [errors, results] = yield* Effect.partition(
-          accounts,
-          (account) => orgs(account.id).pipe(Effect.map((orgs) => ({ account, orgs }))),
-          { concurrency: 3 },
-        )
-        for (const error of errors) {
-          yield* Effect.logWarning("failed to fetch orgs for account").pipe(
-            Effect.annotateLogs({ error: String(error) }),
-          )
-        }
-        return results
-      })
-
-      const orgs = Effect.fn("AccountService.orgs")(function* (accountID: AccountID) {
-        const resolved = yield* resolveAccess(accountID)
-        if (Option.isNone(resolved)) return []
-
-        const { account, accessToken } = resolved.value
-
-        return yield* fetchOrgs(account.url, accessToken)
-      })
-
-      const config = Effect.fn("AccountService.config")(function* (accountID: AccountID, orgID: OrgID) {
-        const resolved = yield* resolveAccess(accountID)
-        if (Option.isNone(resolved)) return Option.none()
-
-        const { account, accessToken } = resolved.value
-
-        const response = yield* executeRead(
-          HttpClientRequest.get(`${account.url}/api/config`).pipe(
-            HttpClientRequest.acceptJson,
-            HttpClientRequest.bearerToken(accessToken),
-            HttpClientRequest.setHeaders({ "x-org-id": orgID }),
-          ),
-        )
-
-        if (response.status === 404) return Option.none()
-
-        const ok = yield* HttpClientResponse.filterStatusOk(response).pipe(mapAccountServiceError())
-
-        const parsed = yield* HttpClientResponse.schemaBodyJson(RemoteConfig)(ok).pipe(
-          mapAccountServiceError("Failed to decode response"),
-        )
-        return Option.some(parsed.config)
-      })
-
-      const login = Effect.fn("AccountService.login")(function* (server: string) {
-        const response = yield* executeEffectOk(
-          HttpClientRequest.post(`${server}/auth/device/code`).pipe(
-            HttpClientRequest.acceptJson,
-            HttpClientRequest.schemaBodyJson(ClientId)(new ClientId({ client_id: clientId })),
-          ),
-        )
-
-        const parsed = yield* HttpClientResponse.schemaBodyJson(DeviceAuth)(response).pipe(
-          mapAccountServiceError("Failed to decode response"),
-        )
-        return new Login({
-          code: parsed.device_code,
-          user: parsed.user_code,
-          url: `${server}${parsed.verification_uri_complete}`,
-          server,
-          expiry: parsed.expires_in,
-          interval: parsed.interval,
-        })
-      })
-
-      const poll = Effect.fn("AccountService.poll")(function* (input: Login) {
-        const response = yield* executeEffectOk(
-          HttpClientRequest.post(`${input.server}/auth/device/token`).pipe(
-            HttpClientRequest.acceptJson,
-            HttpClientRequest.schemaBodyJson(DeviceTokenRequest)(
-              new DeviceTokenRequest({
-                grant_type: "urn:ietf:params:oauth:grant-type:device_code",
-                device_code: input.code,
-                client_id: clientId,
-              }),
-            ),
-          ),
-        )
-
-        const parsed = yield* HttpClientResponse.schemaBodyJson(DeviceToken)(response).pipe(
-          mapAccountServiceError("Failed to decode response"),
-        )
-
-        if (parsed instanceof DeviceTokenError) return parsed.toPollResult()
-        const accessToken = parsed.access_token
-
-        const user = fetchUser(input.server, accessToken)
-        const orgs = fetchOrgs(input.server, accessToken)
-
-        const [account, remoteOrgs] = yield* Effect.all([user, orgs], { concurrency: 2 })
-
-        // TODO: When there are multiple orgs, let the user choose
-        const firstOrgID = remoteOrgs.length > 0 ? Option.some(remoteOrgs[0].id) : Option.none<OrgID>()
-
-        const now = yield* Clock.currentTimeMillis
-        const expiry = now + Duration.toMillis(parsed.expires_in)
-        const refreshToken = parsed.refresh_token
-
-        yield* repo.persistAccount({
-          id: account.id,
-          email: account.email,
-          url: input.server,
-          accessToken,
-          refreshToken,
-          expiry,
-          orgID: firstOrgID,
-        })
-
-        return new PollSuccess({ email: account.email })
-      })
-
-      return AccountService.of({
-        active: repo.active,
-        list: repo.list,
-        orgsByAccount,
-        remove: repo.remove,
-        use: repo.use,
-        orgs,
-        config,
-        token,
-        login,
-        poll,
-      })
-    }),
-  )
-
-  static readonly defaultLayer = AccountService.layer.pipe(
-    Layer.provide(AccountRepo.layer),
-    Layer.provide(FetchHttpClient.layer),
-  )
-}
--- a/packages/opencode/src/agent/agent.ts
+++ b/packages/opencode/src/agent/agent.ts
@@ -5,7 +5,7 @@ import { ModelID, ProviderID } from "../provider/schema"
 import { generateObject, streamObject, type ModelMessage } from "ai"
 import { SystemPrompt } from "../session/system"
 import { Instance } from "../project/instance"
-import { Truncate } from "../tool/truncation"
+import { Truncate } from "../tool/truncate"
 import { Auth } from "../auth"
 import { ProviderTransform } from "../provider/transform"

@@ -14,7 +14,7 @@ import PROMPT_COMPACTION from "./prompt/compaction.txt"
 import PROMPT_EXPLORE from "./prompt/explore.txt"
 import PROMPT_SUMMARY from "./prompt/summary.txt"
 import PROMPT_TITLE from "./prompt/title.txt"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"
 import { mergeDeep, pipe, sortBy, values } from "remeda"
 import { Global } from "@/global"
 import path from "path"
--- a/packages/opencode/src/auth/effect.ts
+++ b/packages/opencode/src/auth/effect.ts
@@ -0,0 +1,98 @@
+import path from "path"
+import { Effect, Layer, Record, Result, Schema, ServiceMap } from "effect"
+import { Global } from "../global"
+import { Filesystem } from "../util/filesystem"
+
+export namespace AuthEffect {
+  export const OAUTH_DUMMY_KEY = "opencode-oauth-dummy-key"
+
+  export class Oauth extends Schema.Class<Oauth>("OAuth")({
+    type: Schema.Literal("oauth"),
+    refresh: Schema.String,
+    access: Schema.String,
+    expires: Schema.Number,
+    accountId: Schema.optional(Schema.String),
+    enterpriseUrl: Schema.optional(Schema.String),
+  }) {}
+
+  export class ApiAuth extends Schema.Class<ApiAuth>("ApiAuth")({
+    type: Schema.Literal("api"),
+    key: Schema.String,
+  }) {}
+
+  export class WellKnown extends Schema.Class<WellKnown>("WellKnownAuth")({
+    type: Schema.Literal("wellknown"),
+    key: Schema.String,
+    token: Schema.String,
+  }) {}
+
+  export const Info = Schema.Union([Oauth, ApiAuth, WellKnown])
+  export type Info = Schema.Schema.Type<typeof Info>
+
+  export class AuthServiceError extends Schema.TaggedErrorClass<AuthServiceError>()("AuthServiceError", {
+    message: Schema.String,
+    cause: Schema.optional(Schema.Defect),
+  }) {}
+
+  export type Error = AuthServiceError
+
+  const file = path.join(Global.Path.data, "auth.json")
+
+  const fail = (message: string) => (cause: unknown) => new AuthServiceError({ message, cause })
+
+  export interface Interface {
+    readonly get: (providerID: string) => Effect.Effect<Info | undefined, AuthServiceError>
+    readonly all: () => Effect.Effect<Record<string, Info>, AuthServiceError>
+    readonly set: (key: string, info: Info) => Effect.Effect<void, AuthServiceError>
+    readonly remove: (key: string) => Effect.Effect<void, AuthServiceError>
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/Auth") {}
+
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const decode = Schema.decodeUnknownOption(Info)
+
+      const all = Effect.fn("Auth.all")(() =>
+        Effect.tryPromise({
+          try: async () => {
+            const data = await Filesystem.readJson<Record<string, unknown>>(file).catch(() => ({}))
+            return Record.filterMap(data, (value) => Result.fromOption(decode(value), () => undefined))
+          },
+          catch: fail("Failed to read auth data"),
+        }),
+      )
+
+      const get = Effect.fn("Auth.get")(function* (providerID: string) {
+        return (yield* all())[providerID]
+      })
+
+      const set = Effect.fn("Auth.set")(function* (key: string, info: Info) {
+        const norm = key.replace(/\/+$/, "")
+        const data = yield* all()
+        if (norm !== key) delete data[key]
+        delete data[norm + "/"]
+        yield* Effect.tryPromise({
+          try: () => Filesystem.writeJson(file, { ...data, [norm]: info }, 0o600),
+          catch: fail("Failed to write auth data"),
+        })
+      })
+
+      const remove = Effect.fn("Auth.remove")(function* (key: string) {
+        const norm = key.replace(/\/+$/, "")
+        const data = yield* all()
+        delete data[key]
+        delete data[norm]
+        yield* Effect.tryPromise({
+          try: () => Filesystem.writeJson(file, data, 0o600),
+          catch: fail("Failed to write auth data"),
+        })
+      })
+
+      return Service.of({ get, all, set, remove })
+    }),
+  )
+
+  export const defaultLayer = layer
+}
--- a/packages/opencode/src/auth/index.ts
+++ b/packages/opencode/src/auth/index.ts
@@ -1,12 +1,12 @@
 import { Effect } from "effect"
 import z from "zod"
 import { runtime } from "@/effect/runtime"
-import * as S from "./service"
+import * as S from "./effect"

-export { OAUTH_DUMMY_KEY } from "./service"
+export const OAUTH_DUMMY_KEY = S.AuthEffect.OAUTH_DUMMY_KEY

-function runPromise<A>(f: (service: S.AuthService.Service) => Effect.Effect<A, S.AuthServiceError>) {
-  return runtime.runPromise(S.AuthService.use(f))
+function runPromise<A>(f: (service: S.AuthEffect.Interface) => Effect.Effect<A, S.AuthEffect.Error>) {
+  return runtime.runPromise(S.AuthEffect.Service.use(f))
 }

 export namespace Auth {
--- a/packages/opencode/src/auth/service.ts
+++ b/packages/opencode/src/auth/service.ts
@@ -1,101 +0,0 @@
-import path from "path"
-import { Effect, Layer, Record, Result, Schema, ServiceMap } from "effect"
-import { Global } from "../global"
-import { Filesystem } from "../util/filesystem"
-
-export const OAUTH_DUMMY_KEY = "opencode-oauth-dummy-key"
-
-export class Oauth extends Schema.Class<Oauth>("OAuth")({
-  type: Schema.Literal("oauth"),
-  refresh: Schema.String,
-  access: Schema.String,
-  expires: Schema.Number,
-  accountId: Schema.optional(Schema.String),
-  enterpriseUrl: Schema.optional(Schema.String),
-}) {}
-
-export class Api extends Schema.Class<Api>("ApiAuth")({
-  type: Schema.Literal("api"),
-  key: Schema.String,
-}) {}
-
-export class WellKnown extends Schema.Class<WellKnown>("WellKnownAuth")({
-  type: Schema.Literal("wellknown"),
-  key: Schema.String,
-  token: Schema.String,
-}) {}
-
-export const Info = Schema.Union([Oauth, Api, WellKnown])
-export type Info = Schema.Schema.Type<typeof Info>
-
-export class AuthServiceError extends Schema.TaggedErrorClass<AuthServiceError>()("AuthServiceError", {
-  message: Schema.String,
-  cause: Schema.optional(Schema.Defect),
-}) {}
-
-const file = path.join(Global.Path.data, "auth.json")
-
-const fail = (message: string) => (cause: unknown) => new AuthServiceError({ message, cause })
-
-export namespace AuthService {
-  export interface Service {
-    readonly get: (providerID: string) => Effect.Effect<Info | undefined, AuthServiceError>
-    readonly all: () => Effect.Effect<Record<string, Info>, AuthServiceError>
-    readonly set: (key: string, info: Info) => Effect.Effect<void, AuthServiceError>
-    readonly remove: (key: string) => Effect.Effect<void, AuthServiceError>
-  }
-}
-
-export class AuthService extends ServiceMap.Service<AuthService, AuthService.Service>()("@opencode/Auth") {
-  static readonly layer = Layer.effect(
-    AuthService,
-    Effect.gen(function* () {
-      const decode = Schema.decodeUnknownOption(Info)
-
-      const all = Effect.fn("AuthService.all")(() =>
-        Effect.tryPromise({
-          try: async () => {
-            const data = await Filesystem.readJson<Record<string, unknown>>(file).catch(() => ({}))
-            return Record.filterMap(data, (value) => Result.fromOption(decode(value), () => undefined))
-          },
-          catch: fail("Failed to read auth data"),
-        }),
-      )
-
-      const get = Effect.fn("AuthService.get")(function* (providerID: string) {
-        return (yield* all())[providerID]
-      })
-
-      const set = Effect.fn("AuthService.set")(function* (key: string, info: Info) {
-        const norm = key.replace(/\/+$/, "")
-        const data = yield* all()
-        if (norm !== key) delete data[key]
-        delete data[norm + "/"]
-        yield* Effect.tryPromise({
-          try: () => Filesystem.writeJson(file, { ...data, [norm]: info }, 0o600),
-          catch: fail("Failed to write auth data"),
-        })
-      })
-
-      const remove = Effect.fn("AuthService.remove")(function* (key: string) {
-        const norm = key.replace(/\/+$/, "")
-        const data = yield* all()
-        delete data[key]
-        delete data[norm]
-        yield* Effect.tryPromise({
-          try: () => Filesystem.writeJson(file, data, 0o600),
-          catch: fail("Failed to write auth data"),
-        })
-      })
-
-      return AuthService.of({
-        get,
-        all,
-        set,
-        remove,
-      })
-    }),
-  )
-
-  static readonly defaultLayer = AuthService.layer
-}
--- a/packages/opencode/src/cli/cmd/account.ts
+++ b/packages/opencode/src/cli/cmd/account.ts
@@ -2,8 +2,8 @@ import { cmd } from "./cmd"
 import { Duration, Effect, Match, Option } from "effect"
 import { UI } from "../ui"
 import { runtime } from "@/effect/runtime"
-import { AccountID, AccountService, OrgID, PollExpired, type PollResult } from "@/account/service"
-import { type AccountError } from "@/account/schema"
+import { AccountEffect } from "@/account/effect"
+import { type AccountError, AccountID, OrgID, PollExpired, type PollResult } from "@/account/schema"
 import * as Prompt from "../effect/prompt"
 import open from "open"

@@ -11,8 +11,13 @@ const openBrowser = (url: string) => Effect.promise(() => open(url).catch(() =>

 const println = (msg: string) => Effect.sync(() => UI.println(msg))

+const isActiveOrgChoice = (
+  active: Option.Option<{ id: AccountID; active_org_id: OrgID | null }>,
+  choice: { accountID: AccountID; orgID: OrgID },
+) => Option.isSome(active) && active.value.id === choice.accountID && active.value.active_org_id === choice.orgID
+
 const loginEffect = Effect.fn("login")(function* (url: string) {
-  const service = yield* AccountService
+  const service = yield* AccountEffect.Service

  yield* Prompt.intro("Log in")
  const login = yield* service.login(url)
@@ -53,7 +58,7 @@ const loginEffect = Effect.fn("login")(function* (url: string) {
 })

 const logoutEffect = Effect.fn("logout")(function* (email?: string) {
-  const service = yield* AccountService
+  const service = yield* AccountEffect.Service
  const accounts = yield* service.list()
  if (accounts.length === 0) return yield* println("Not logged in")

@@ -93,17 +98,16 @@ interface OrgChoice {
 }

 const switchEffect = Effect.fn("switch")(function* () {
-  const service = yield* AccountService
+  const service = yield* AccountEffect.Service

  const groups = yield* service.orgsByAccount()
  if (groups.length === 0) return yield* println("Not logged in")

  const active = yield* service.active()
-  const activeOrgID = Option.flatMap(active, (a) => Option.fromNullishOr(a.active_org_id))

  const opts = groups.flatMap((group) =>
    group.orgs.map((org) => {
-      const isActive = Option.isSome(activeOrgID) && activeOrgID.value === org.id
+      const isActive = isActiveOrgChoice(active, { accountID: group.account.id, orgID: org.id })
      return {
        value: { orgID: org.id, accountID: group.account.id, label: org.name },
        label: isActive
@@ -125,18 +129,17 @@ const switchEffect = Effect.fn("switch")(function* () {
 })

 const orgsEffect = Effect.fn("orgs")(function* () {
-  const service = yield* AccountService
+  const service = yield* AccountEffect.Service

  const groups = yield* service.orgsByAccount()
  if (groups.length === 0) return yield* println("No accounts found")
  if (!groups.some((group) => group.orgs.length > 0)) return yield* println("No orgs found")

  const active = yield* service.active()
-  const activeOrgID = Option.flatMap(active, (a) => Option.fromNullishOr(a.active_org_id))

  for (const group of groups) {
    for (const org of group.orgs) {
-      const isActive = Option.isSome(activeOrgID) && activeOrgID.value === org.id
+      const isActive = isActiveOrgChoice(active, { accountID: group.account.id, orgID: org.id })
      const dot = isActive ? UI.Style.TEXT_SUCCESS + "●" + UI.Style.TEXT_NORMAL : " "
      const name = isActive ? UI.Style.TEXT_HIGHLIGHT_BOLD + org.name + UI.Style.TEXT_NORMAL : org.name
      const email = UI.Style.TEXT_DIM + group.account.email + UI.Style.TEXT_NORMAL
--- a/packages/opencode/src/cli/cmd/debug/agent.ts
+++ b/packages/opencode/src/cli/cmd/debug/agent.ts
@@ -7,7 +7,7 @@ import type { MessageV2 } from "../../../session/message-v2"
 import { MessageID, PartID } from "../../../session/schema"
 import { ToolRegistry } from "../../../tool/registry"
 import { Instance } from "../../../project/instance"
-import { PermissionNext } from "../../../permission/next"
+import { PermissionNext } from "../../../permission"
 import { iife } from "../../../util/iife"
 import { bootstrap } from "../../bootstrap"
 import { cmd } from "../cmd"
@@ -159,7 +159,7 @@ async function createToolContext(agent: Agent.Info) {
      for (const pattern of req.patterns) {
        const rule = PermissionNext.evaluate(req.permission, pattern, ruleset)
        if (rule.action === "deny") {
-          throw new PermissionNext.DeniedError(ruleset)
+          throw new PermissionNext.DeniedError({ ruleset })
        }
      }
    },
--- a/packages/opencode/src/cli/cmd/run.ts
+++ b/packages/opencode/src/cli/cmd/run.ts
@@ -11,7 +11,7 @@ import { createOpencodeClient, type Message, type OpencodeClient, type ToolPart
 import { Server } from "../../server/server"
 import { Provider } from "../../provider/provider"
 import { Agent } from "../../agent/agent"
-import { PermissionNext } from "../../permission/next"
+import { PermissionNext } from "../../permission"
 import { Tool } from "../../tool/tool"
 import { GlobTool } from "../../tool/glob"
 import { GrepTool } from "../../tool/grep"
--- a/packages/opencode/src/cli/cmd/tui/ui/dialog.tsx
+++ b/packages/opencode/src/cli/cmd/tui/ui/dialog.tsx
@@ -70,7 +70,7 @@ function init() {
  useKeyboard((evt) => {
    if (store.stack.length === 0) return
    if (evt.defaultPrevented) return
-    if ((evt.name === "escape" || (evt.ctrl && evt.name === "c")) && renderer.getSelection()) return
+    if ((evt.name === "escape" || (evt.ctrl && evt.name === "c")) && renderer.getSelection()?.getSelectedText()) return
    if (evt.name === "escape" || (evt.ctrl && evt.name === "c")) {
      const current = store.stack.at(-1)!
      current.onClose?.()
--- a/packages/opencode/src/cli/cmd/tui/util/editor.ts
+++ b/packages/opencode/src/cli/cmd/tui/util/editor.ts
@@ -17,17 +17,21 @@ export namespace Editor {
    await Filesystem.write(filepath, opts.value)
    opts.renderer.suspend()
    opts.renderer.currentRenderBuffer.clear()
-    const parts = editor.split(" ")
-    const proc = Process.spawn([...parts, filepath], {
-      stdin: "inherit",
-      stdout: "inherit",
-      stderr: "inherit",
-    })
-    await proc.exited
-    const content = await Filesystem.readText(filepath)
-    opts.renderer.currentRenderBuffer.clear()
-    opts.renderer.resume()
-    opts.renderer.requestRender()
-    return content || undefined
+    try {
+      const parts = editor.split(" ")
+      const proc = Process.spawn([...parts, filepath], {
+        stdin: "inherit",
+        stdout: "inherit",
+        stderr: "inherit",
+        shell: process.platform === "win32",
+      })
+      await proc.exited
+      const content = await Filesystem.readText(filepath)
+      return content || undefined
+    } finally {
+      opts.renderer.currentRenderBuffer.clear()
+      opts.renderer.resume()
+      opts.renderer.requestRender()
+    }
  }
 }
--- a/packages/opencode/src/config/config.ts
+++ b/packages/opencode/src/config/config.ts
@@ -1052,7 +1052,12 @@ export namespace Config {
        })
        .optional(),
      plugin: z.string().array().optional(),
-      snapshot: z.boolean().optional(),
+      snapshot: z
+        .boolean()
+        .optional()
+        .describe(
+          "Enable or disable snapshot tracking. When false, filesystem snapshots are not recorded and undoing or reverting will not undo/redo file changes. Defaults to true.",
+        ),
      share: z
        .enum(["manual", "auto", "disabled"])
        .optional()
--- a/packages/opencode/src/effect/instance-context.ts
+++ b/packages/opencode/src/effect/instance-context.ts
@@ -0,0 +1,15 @@
+import { ServiceMap } from "effect";
+import type { Project } from "@/project/project";
+
+export declare namespace InstanceContext {
+	export interface Shape {
+		readonly directory: string;
+		readonly worktree: string;
+		readonly project: Project.Info;
+	}
+}
+
+export class InstanceContext extends ServiceMap.Service<
+	InstanceContext,
+	InstanceContext.Shape
+>()("opencode/InstanceContext") {}
--- a/packages/opencode/src/effect/instance-registry.ts
+++ b/packages/opencode/src/effect/instance-registry.ts
@@ -0,0 +1,12 @@
+const disposers = new Set<(directory: string) => Promise<void>>()
+
+export function registerDisposer(disposer: (directory: string) => Promise<void>) {
+  disposers.add(disposer)
+  return () => {
+    disposers.delete(disposer)
+  }
+}
+
+export async function disposeInstance(directory: string) {
+  await Promise.allSettled([...disposers].map((disposer) => disposer(directory)))
+}
--- a/packages/opencode/src/effect/instances.ts
+++ b/packages/opencode/src/effect/instances.ts
@@ -0,0 +1,70 @@
+import { Effect, Layer, LayerMap, ServiceMap } from "effect"
+import { File } from "@/file"
+import { FileTime } from "@/file/time"
+import { FileWatcher } from "@/file/watcher"
+import { Format } from "@/format"
+import { PermissionEffect } from "@/permission/effect"
+import { Instance } from "@/project/instance"
+import { Vcs } from "@/project/vcs"
+import { ProviderAuthEffect } from "@/provider/auth-effect"
+import { QuestionEffect } from "@/question/effect"
+import { Skill } from "@/skill/skill"
+import { Snapshot } from "@/snapshot"
+import { InstanceContext } from "./instance-context"
+import { registerDisposer } from "./instance-registry"
+
+export { InstanceContext } from "./instance-context"
+
+export type InstanceServices =
+  | QuestionEffect.Service
+  | PermissionEffect.Service
+  | ProviderAuthEffect.Service
+  | FileWatcher.Service
+  | Vcs.Service
+  | FileTime.Service
+  | Format.Service
+  | File.Service
+  | Skill.Service
+  | Snapshot.Service
+
+// NOTE: LayerMap only passes the key (directory string) to lookup, but we need
+// the full instance context (directory, worktree, project). We read from the
+// legacy Instance ALS here, which is safe because lookup is only triggered via
+// runPromiseInstance -> Instances.get, which always runs inside Instance.provide.
+// This should go away once the old Instance type is removed and lookup can load
+// the full context directly.
+function lookup(_key: string) {
+  const ctx = Layer.sync(InstanceContext, () => InstanceContext.of(Instance.current))
+  return Layer.mergeAll(
+    Layer.fresh(QuestionEffect.layer),
+    Layer.fresh(PermissionEffect.layer),
+    Layer.fresh(ProviderAuthEffect.defaultLayer),
+    Layer.fresh(FileWatcher.layer).pipe(Layer.orDie),
+    Layer.fresh(Vcs.layer),
+    Layer.fresh(FileTime.layer).pipe(Layer.orDie),
+    Layer.fresh(Format.layer),
+    Layer.fresh(File.layer),
+    Layer.fresh(Skill.defaultLayer),
+    Layer.fresh(Snapshot.defaultLayer),
+  ).pipe(Layer.provide(ctx))
+}
+
+export class Instances extends ServiceMap.Service<Instances, LayerMap.LayerMap<string, InstanceServices>>()(
+  "opencode/Instances",
+) {
+  static readonly layer = Layer.effect(
+    Instances,
+    Effect.gen(function* () {
+      const layerMap = yield* LayerMap.make(lookup, {
+        idleTimeToLive: Infinity,
+      })
+      const unregister = registerDisposer((directory) => Effect.runPromise(layerMap.invalidate(directory)))
+      yield* Effect.addFinalizer(() => Effect.sync(unregister))
+      return Instances.of(layerMap)
+    }),
+  )
+
+  static get(directory: string): Layer.Layer<InstanceServices, never, Instances> {
+    return Layer.unwrap(Instances.use((map) => Effect.succeed(map.get(directory))))
+  }
+}
--- a/packages/opencode/src/effect/runtime.ts
+++ b/packages/opencode/src/effect/runtime.ts
@@ -1,5 +1,23 @@
-import { Layer, ManagedRuntime } from "effect"
-import { AccountService } from "@/account/service"
-import { AuthService } from "@/auth/service"
+import { Effect, Layer, ManagedRuntime } from "effect"
+import { AccountEffect } from "@/account/effect"
+import { AuthEffect } from "@/auth/effect"
+import { Instances } from "@/effect/instances"
+import type { InstanceServices } from "@/effect/instances"
+import { TruncateEffect } from "@/tool/truncate-effect"
+import { Instance } from "@/project/instance"

-export const runtime = ManagedRuntime.make(Layer.mergeAll(AccountService.defaultLayer, AuthService.defaultLayer))
+export const runtime = ManagedRuntime.make(
+  Layer.mergeAll(
+    AccountEffect.defaultLayer, //
+    TruncateEffect.defaultLayer,
+    Instances.layer,
+  ).pipe(Layer.provideMerge(AuthEffect.defaultLayer)),
+)
+
+export function runPromiseInstance<A, E>(effect: Effect.Effect<A, E, InstanceServices>) {
+  return runtime.runPromise(effect.pipe(Effect.provide(Instances.get(Instance.directory))))
+}
+
+export function disposeRuntime() {
+  return runtime.dispose()
+}
--- a/packages/opencode/src/file/index.ts
+++ b/packages/opencode/src/file/index.ts
@@ -1,21 +1,22 @@
 import { BusEvent } from "@/bus/bus-event"
-import z from "zod"
-import { formatPatch, structuredPatch } from "diff"
-import path from "path"
-import fs from "fs"
-import ignore from "ignore"
-import { Log } from "../util/log"
-import { Filesystem } from "../util/filesystem"
-import { Instance } from "../project/instance"
-import { Ripgrep } from "./ripgrep"
-import fuzzysort from "fuzzysort"
-import { Global } from "../global"
+import { InstanceContext } from "@/effect/instance-context"
+import { runPromiseInstance } from "@/effect/runtime"
 import { git } from "@/util/git"
+import { Effect, Layer, ServiceMap } from "effect"
+import { formatPatch, structuredPatch } from "diff"
+import fs from "fs"
+import fuzzysort from "fuzzysort"
+import ignore from "ignore"
+import path from "path"
+import z from "zod"
+import { Global } from "../global"
+import { Instance } from "../project/instance"
+import { Filesystem } from "../util/filesystem"
+import { Log } from "../util/log"
 import { Protected } from "./protected"
+import { Ripgrep } from "./ripgrep"

 export namespace File {
-  const log = Log.create({ service: "file" })
-
  export const Info = z
    .object({
      path: z.string(),
@@ -73,7 +74,38 @@ export namespace File {
    })
  export type Content = z.infer<typeof Content>

-  const binaryExtensions = new Set([
+  export const Event = {
+    Edited: BusEvent.define(
+      "file.edited",
+      z.object({
+        file: z.string(),
+      }),
+    ),
+  }
+
+  export function init() {
+    return runPromiseInstance(Service.use((svc) => svc.init()))
+  }
+
+  export async function status() {
+    return runPromiseInstance(Service.use((svc) => svc.status()))
+  }
+
+  export async function read(file: string): Promise<Content> {
+    return runPromiseInstance(Service.use((svc) => svc.read(file)))
+  }
+
+  export async function list(dir?: string) {
+    return runPromiseInstance(Service.use((svc) => svc.list(dir)))
+  }
+
+  export async function search(input: { query: string; limit?: number; dirs?: boolean; type?: "file" | "directory" }) {
+    return runPromiseInstance(Service.use((svc) => svc.search(input)))
+  }
+
+  const log = Log.create({ service: "file" })
+
+  const binary = new Set([
    "exe",
    "dll",
    "pdb",
@@ -175,7 +207,7 @@ export namespace File {
    "fish",
  ])

-  const imageExtensions = new Set([
+  const image = new Set([
    "png",
    "jpg",
    "jpeg",
@@ -203,7 +235,7 @@ export namespace File {
    "x3f",
  ])

-  const textExtensions = new Set([
+  const text = new Set([
    "ts",
    "tsx",
    "mts",
@@ -247,7 +279,7 @@ export namespace File {
    "env",
  ])

-  const textNames = new Set([
+  const textName = new Set([
    "dockerfile",
    "makefile",
    ".gitignore",
@@ -259,396 +291,404 @@ export namespace File {
    ".eslintrc",
  ])

-  function isImageByExtension(filepath: string): boolean {
-    const ext = path.extname(filepath).toLowerCase().slice(1)
-    return imageExtensions.has(ext)
+  const mime: Record<string, string> = {
+    png: "image/png",
+    jpg: "image/jpeg",
+    jpeg: "image/jpeg",
+    gif: "image/gif",
+    bmp: "image/bmp",
+    webp: "image/webp",
+    ico: "image/x-icon",
+    tif: "image/tiff",
+    tiff: "image/tiff",
+    svg: "image/svg+xml",
+    svgz: "image/svg+xml",
+    avif: "image/avif",
+    apng: "image/apng",
+    jxl: "image/jxl",
+    heic: "image/heic",
+    heif: "image/heif",
  }

-  function isTextByExtension(filepath: string): boolean {
-    const ext = path.extname(filepath).toLowerCase().slice(1)
-    return textExtensions.has(ext)
-  }
+  type Entry = { files: string[]; dirs: string[] }

-  function isTextByName(filepath: string): boolean {
-    const name = path.basename(filepath).toLowerCase()
-    return textNames.has(name)
-  }
+  const ext = (file: string) => path.extname(file).toLowerCase().slice(1)
+  const name = (file: string) => path.basename(file).toLowerCase()
+  const isImageByExtension = (file: string) => image.has(ext(file))
+  const isTextByExtension = (file: string) => text.has(ext(file))
+  const isTextByName = (file: string) => textName.has(name(file))
+  const isBinaryByExtension = (file: string) => binary.has(ext(file))
+  const isImage = (mimeType: string) => mimeType.startsWith("image/")
+  const getImageMimeType = (file: string) => mime[ext(file)] || "image/" + ext(file)

-  function getImageMimeType(filepath: string): string {
-    const ext = path.extname(filepath).toLowerCase().slice(1)
-    const mimeTypes: Record<string, string> = {
-      png: "image/png",
-      jpg: "image/jpeg",
-      jpeg: "image/jpeg",
-      gif: "image/gif",
-      bmp: "image/bmp",
-      webp: "image/webp",
-      ico: "image/x-icon",
-      tif: "image/tiff",
-      tiff: "image/tiff",
-      svg: "image/svg+xml",
-      svgz: "image/svg+xml",
-      avif: "image/avif",
-      apng: "image/apng",
-      jxl: "image/jxl",
-      heic: "image/heic",
-      heif: "image/heif",
-    }
-    return mimeTypes[ext] || "image/" + ext
-  }
-
-  function isBinaryByExtension(filepath: string): boolean {
-    const ext = path.extname(filepath).toLowerCase().slice(1)
-    return binaryExtensions.has(ext)
-  }
-
-  function isImage(mimeType: string): boolean {
-    return mimeType.startsWith("image/")
-  }
-
-  async function shouldEncode(mimeType: string): Promise<boolean> {
+  function shouldEncode(mimeType: string) {
    const type = mimeType.toLowerCase()
    log.info("shouldEncode", { type })
    if (!type) return false
-
    if (type.startsWith("text/")) return false
    if (type.includes("charset=")) return false
-
-    const parts = type.split("/", 2)
-    const top = parts[0]
-
-    const tops = ["image", "audio", "video", "font", "model", "multipart"]
-    if (tops.includes(top)) return true
-
-    return false
+    const top = type.split("/", 2)[0]
+    return ["image", "audio", "video", "font", "model", "multipart"].includes(top)
  }

-  export const Event = {
-    Edited: BusEvent.define(
-      "file.edited",
-      z.object({
-        file: z.string(),
-      }),
-    ),
+  const hidden = (item: string) => {
+    const normalized = item.replaceAll("\\", "/").replace(/\/+$/, "")
+    return normalized.split("/").some((part) => part.startsWith(".") && part.length > 1)
  }

-  const state = Instance.state(async () => {
-    type Entry = { files: string[]; dirs: string[] }
-    let cache: Entry = { files: [], dirs: [] }
-    let fetching = false
+  const sortHiddenLast = (items: string[], prefer: boolean) => {
+    if (prefer) return items
+    const visible: string[] = []
+    const hiddenItems: string[] = []
+    for (const item of items) {
+      if (hidden(item)) hiddenItems.push(item)
+      else visible.push(item)
+    }
+    return [...visible, ...hiddenItems]
+  }

-    const isGlobalHome = Instance.directory === Global.Path.home && Instance.project.id === "global"
+  export interface Interface {
+    readonly init: () => Effect.Effect<void>
+    readonly status: () => Effect.Effect<File.Info[]>
+    readonly read: (file: string) => Effect.Effect<File.Content>
+    readonly list: (dir?: string) => Effect.Effect<File.Node[]>
+    readonly search: (input: {
+      query: string
+      limit?: number
+      dirs?: boolean
+      type?: "file" | "directory"
+    }) => Effect.Effect<string[]>
+  }

-    const fn = async (result: Entry) => {
-      // Disable scanning if in root of file system
-      if (Instance.directory === path.parse(Instance.directory).root) return
-      fetching = true
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/File") {}

-      if (isGlobalHome) {
-        const dirs = new Set<string>()
-        const ignore = Protected.names()
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const instance = yield* InstanceContext
+      let cache: Entry = { files: [], dirs: [] }
+      let task: Promise<void> | undefined
+      const isGlobalHome = instance.directory === Global.Path.home && instance.project.id === "global"

-        const ignoreNested = new Set(["node_modules", "dist", "build", "target", "vendor"])
-        const shouldIgnore = (name: string) => name.startsWith(".") || ignore.has(name)
-        const shouldIgnoreNested = (name: string) => name.startsWith(".") || ignoreNested.has(name)
+      function kick() {
+        if (task) return task
+        task = (async () => {
+          if (instance.directory === path.parse(instance.directory).root) return
+          const next: Entry = { files: [], dirs: [] }
+          try {
+            if (isGlobalHome) {
+              const dirs = new Set<string>()
+              const protectedNames = Protected.names()
+              const ignoreNested = new Set(["node_modules", "dist", "build", "target", "vendor"])
+              const shouldIgnoreName = (name: string) => name.startsWith(".") || protectedNames.has(name)
+              const shouldIgnoreNested = (name: string) => name.startsWith(".") || ignoreNested.has(name)
+              const top = await fs.promises
+                .readdir(instance.directory, { withFileTypes: true })
+                .catch(() => [] as fs.Dirent[])

-        const top = await fs.promises
-          .readdir(Instance.directory, { withFileTypes: true })
-          .catch(() => [] as fs.Dirent[])
+              for (const entry of top) {
+                if (!entry.isDirectory()) continue
+                if (shouldIgnoreName(entry.name)) continue
+                dirs.add(entry.name + "/")

-        for (const entry of top) {
-          if (!entry.isDirectory()) continue
-          if (shouldIgnore(entry.name)) continue
-          dirs.add(entry.name + "/")
+                const base = path.join(instance.directory, entry.name)
+                const children = await fs.promises.readdir(base, { withFileTypes: true }).catch(() => [] as fs.Dirent[])
+                for (const child of children) {
+                  if (!child.isDirectory()) continue
+                  if (shouldIgnoreNested(child.name)) continue
+                  dirs.add(entry.name + "/" + child.name + "/")
+                }
+              }

-          const base = path.join(Instance.directory, entry.name)
-          const children = await fs.promises.readdir(base, { withFileTypes: true }).catch(() => [] as fs.Dirent[])
-          for (const child of children) {
-            if (!child.isDirectory()) continue
-            if (shouldIgnoreNested(child.name)) continue
-            dirs.add(entry.name + "/" + child.name + "/")
+              next.dirs = Array.from(dirs).toSorted()
+            } else {
+              const seen = new Set<string>()
+              for await (const file of Ripgrep.files({ cwd: instance.directory })) {
+                next.files.push(file)
+                let current = file
+                while (true) {
+                  const dir = path.dirname(current)
+                  if (dir === ".") break
+                  if (dir === current) break
+                  current = dir
+                  if (seen.has(dir)) continue
+                  seen.add(dir)
+                  next.dirs.push(dir + "/")
+                }
+              }
+            }
+            cache = next
+          } finally {
+            task = undefined
          }
-        }
-
-        result.dirs = Array.from(dirs).toSorted()
-        cache = result
-        fetching = false
-        return
+        })()
+        return task
      }

-      const set = new Set<string>()
-      for await (const file of Ripgrep.files({ cwd: Instance.directory })) {
-        result.files.push(file)
-        let current = file
-        while (true) {
-          const dir = path.dirname(current)
-          if (dir === ".") break
-          if (dir === current) break
-          current = dir
-          if (set.has(dir)) continue
-          set.add(dir)
-          result.dirs.push(dir + "/")
-        }
-      }
-      cache = result
-      fetching = false
-    }
-    fn(cache)
-
-    return {
-      async files() {
-        if (!fetching) {
-          fn({
-            files: [],
-            dirs: [],
-          })
-        }
+      const getFiles = async () => {
+        void kick()
        return cache
-      },
-    }
-  })
-
-  export function init() {
-    state()
-  }
-
-  export async function status() {
-    const project = Instance.project
-    if (project.vcs !== "git") return []
-
-    const diffOutput = (
-      await git(["-c", "core.fsmonitor=false", "-c", "core.quotepath=false", "diff", "--numstat", "HEAD"], {
-        cwd: Instance.directory,
-      })
-    ).text()
-
-    const changedFiles: Info[] = []
-
-    if (diffOutput.trim()) {
-      const lines = diffOutput.trim().split("\n")
-      for (const line of lines) {
-        const [added, removed, filepath] = line.split("\t")
-        changedFiles.push({
-          path: filepath,
-          added: added === "-" ? 0 : parseInt(added, 10),
-          removed: removed === "-" ? 0 : parseInt(removed, 10),
-          status: "modified",
-        })
      }
-    }

-    const untrackedOutput = (
-      await git(
-        ["-c", "core.fsmonitor=false", "-c", "core.quotepath=false", "ls-files", "--others", "--exclude-standard"],
-        {
-          cwd: Instance.directory,
-        },
-      )
-    ).text()
+      const init = Effect.fn("File.init")(function* () {
+        yield* Effect.promise(() => kick())
+      })

-    if (untrackedOutput.trim()) {
-      const untrackedFiles = untrackedOutput.trim().split("\n")
-      for (const filepath of untrackedFiles) {
-        try {
-          const content = await Filesystem.readText(path.join(Instance.directory, filepath))
-          const lines = content.split("\n").length
-          changedFiles.push({
-            path: filepath,
-            added: lines,
-            removed: 0,
-            status: "added",
+      const status = Effect.fn("File.status")(function* () {
+        if (instance.project.vcs !== "git") return []
+
+        return yield* Effect.promise(async () => {
+          const diffOutput = (
+            await git(["-c", "core.fsmonitor=false", "-c", "core.quotepath=false", "diff", "--numstat", "HEAD"], {
+              cwd: instance.directory,
+            })
+          ).text()
+
+          const changed: File.Info[] = []
+
+          if (diffOutput.trim()) {
+            for (const line of diffOutput.trim().split("\n")) {
+              const [added, removed, file] = line.split("\t")
+              changed.push({
+                path: file,
+                added: added === "-" ? 0 : parseInt(added, 10),
+                removed: removed === "-" ? 0 : parseInt(removed, 10),
+                status: "modified",
+              })
+            }
+          }
+
+          const untrackedOutput = (
+            await git(
+              [
+                "-c",
+                "core.fsmonitor=false",
+                "-c",
+                "core.quotepath=false",
+                "ls-files",
+                "--others",
+                "--exclude-standard",
+              ],
+              {
+                cwd: instance.directory,
+              },
+            )
+          ).text()
+
+          if (untrackedOutput.trim()) {
+            for (const file of untrackedOutput.trim().split("\n")) {
+              try {
+                const content = await Filesystem.readText(path.join(instance.directory, file))
+                changed.push({
+                  path: file,
+                  added: content.split("\n").length,
+                  removed: 0,
+                  status: "added",
+                })
+              } catch {
+                continue
+              }
+            }
+          }
+
+          const deletedOutput = (
+            await git(
+              [
+                "-c",
+                "core.fsmonitor=false",
+                "-c",
+                "core.quotepath=false",
+                "diff",
+                "--name-only",
+                "--diff-filter=D",
+                "HEAD",
+              ],
+              {
+                cwd: instance.directory,
+              },
+            )
+          ).text()
+
+          if (deletedOutput.trim()) {
+            for (const file of deletedOutput.trim().split("\n")) {
+              changed.push({
+                path: file,
+                added: 0,
+                removed: 0,
+                status: "deleted",
+              })
+            }
+          }
+
+          return changed.map((item) => {
+            const full = path.isAbsolute(item.path) ? item.path : path.join(instance.directory, item.path)
+            return {
+              ...item,
+              path: path.relative(instance.directory, full),
+            }
          })
-        } catch {
-          continue
-        }
-      }
-    }
-
-    // Get deleted files
-    const deletedOutput = (
-      await git(
-        ["-c", "core.fsmonitor=false", "-c", "core.quotepath=false", "diff", "--name-only", "--diff-filter=D", "HEAD"],
-        {
-          cwd: Instance.directory,
-        },
-      )
-    ).text()
-
-    if (deletedOutput.trim()) {
-      const deletedFiles = deletedOutput.trim().split("\n")
-      for (const filepath of deletedFiles) {
-        changedFiles.push({
-          path: filepath,
-          added: 0,
-          removed: 0, // Could get original line count but would require another git command
-          status: "deleted",
        })
-      }
-    }
+      })

-    return changedFiles.map((x) => {
-      const full = path.isAbsolute(x.path) ? x.path : path.join(Instance.directory, x.path)
-      return {
-        ...x,
-        path: path.relative(Instance.directory, full),
-      }
-    })
-  }
+      const read = Effect.fn("File.read")(function* (file: string) {
+        return yield* Effect.promise(async (): Promise<File.Content> => {
+          using _ = log.time("read", { file })
+          const full = path.join(instance.directory, file)

-  export async function read(file: string): Promise<Content> {
-    using _ = log.time("read", { file })
-    const project = Instance.project
-    const full = path.join(Instance.directory, file)
+          if (!Instance.containsPath(full)) {
+            throw new Error("Access denied: path escapes project directory")
+          }

-    // TODO: Filesystem.contains is lexical only - symlinks inside the project can escape.
-    // TODO: On Windows, cross-drive paths bypass this check. Consider realpath canonicalization.
-    if (!Instance.containsPath(full)) {
-      throw new Error(`Access denied: path escapes project directory`)
-    }
+          if (isImageByExtension(file)) {
+            if (await Filesystem.exists(full)) {
+              const buffer = await Filesystem.readBytes(full).catch(() => Buffer.from([]))
+              return {
+                type: "text",
+                content: buffer.toString("base64"),
+                mimeType: getImageMimeType(file),
+                encoding: "base64",
+              }
+            }
+            return { type: "text", content: "" }
+          }

-    // Fast path: check extension before any filesystem operations
-    if (isImageByExtension(file)) {
-      if (await Filesystem.exists(full)) {
-        const buffer = await Filesystem.readBytes(full).catch(() => Buffer.from([]))
-        const content = buffer.toString("base64")
-        const mimeType = getImageMimeType(file)
-        return { type: "text", content, mimeType, encoding: "base64" }
-      }
-      return { type: "text", content: "" }
-    }
+          const knownText = isTextByExtension(file) || isTextByName(file)

-    const text = isTextByExtension(file) || isTextByName(file)
+          if (isBinaryByExtension(file) && !knownText) {
+            return { type: "binary", content: "" }
+          }

-    if (isBinaryByExtension(file) && !text) {
-      return { type: "binary", content: "" }
-    }
+          if (!(await Filesystem.exists(full))) {
+            return { type: "text", content: "" }
+          }

-    if (!(await Filesystem.exists(full))) {
-      return { type: "text", content: "" }
-    }
+          const mimeType = Filesystem.mimeType(full)
+          const encode = knownText ? false : shouldEncode(mimeType)

-    const mimeType = Filesystem.mimeType(full)
-    const encode = text ? false : await shouldEncode(mimeType)
+          if (encode && !isImage(mimeType)) {
+            return { type: "binary", content: "", mimeType }
+          }

-    if (encode && !isImage(mimeType)) {
-      return { type: "binary", content: "", mimeType }
-    }
+          if (encode) {
+            const buffer = await Filesystem.readBytes(full).catch(() => Buffer.from([]))
+            return {
+              type: "text",
+              content: buffer.toString("base64"),
+              mimeType,
+              encoding: "base64",
+            }
+          }

-    if (encode) {
-      const buffer = await Filesystem.readBytes(full).catch(() => Buffer.from([]))
-      const content = buffer.toString("base64")
-      return { type: "text", content, mimeType, encoding: "base64" }
-    }
+          const content = (await Filesystem.readText(full).catch(() => "")).trim()

-    const content = (await Filesystem.readText(full).catch(() => "")).trim()
+          if (instance.project.vcs === "git") {
+            let diff = (
+              await git(["-c", "core.fsmonitor=false", "diff", "--", file], { cwd: instance.directory })
+            ).text()
+            if (!diff.trim()) {
+              diff = (
+                await git(["-c", "core.fsmonitor=false", "diff", "--staged", "--", file], {
+                  cwd: instance.directory,
+                })
+              ).text()
+            }
+            if (diff.trim()) {
+              const original = (await git(["show", `HEAD:${file}`], { cwd: instance.directory })).text()
+              const patch = structuredPatch(file, file, original, content, "old", "new", {
+                context: Infinity,
+                ignoreWhitespace: true,
+              })
+              return {
+                type: "text",
+                content,
+                patch,
+                diff: formatPatch(patch),
+              }
+            }
+          }

-    if (project.vcs === "git") {
-      let diff = (await git(["-c", "core.fsmonitor=false", "diff", "--", file], { cwd: Instance.directory })).text()
-      if (!diff.trim()) {
-        diff = (
-          await git(["-c", "core.fsmonitor=false", "diff", "--staged", "--", file], { cwd: Instance.directory })
-        ).text()
-      }
-      if (diff.trim()) {
-        const original = (await git(["show", `HEAD:${file}`], { cwd: Instance.directory })).text()
-        const patch = structuredPatch(file, file, original, content, "old", "new", {
-          context: Infinity,
-          ignoreWhitespace: true,
+          return { type: "text", content }
        })
-        const diff = formatPatch(patch)
-        return { type: "text", content, patch, diff }
-      }
-    }
-    return { type: "text", content }
-  }
-
-  export async function list(dir?: string) {
-    const exclude = [".git", ".DS_Store"]
-    const project = Instance.project
-    let ignored = (_: string) => false
-    if (project.vcs === "git") {
-      const ig = ignore()
-      const gitignorePath = path.join(Instance.worktree, ".gitignore")
-      if (await Filesystem.exists(gitignorePath)) {
-        ig.add(await Filesystem.readText(gitignorePath))
-      }
-      const ignorePath = path.join(Instance.worktree, ".ignore")
-      if (await Filesystem.exists(ignorePath)) {
-        ig.add(await Filesystem.readText(ignorePath))
-      }
-      ignored = ig.ignores.bind(ig)
-    }
-    const resolved = dir ? path.join(Instance.directory, dir) : Instance.directory
-
-    // TODO: Filesystem.contains is lexical only - symlinks inside the project can escape.
-    // TODO: On Windows, cross-drive paths bypass this check. Consider realpath canonicalization.
-    if (!Instance.containsPath(resolved)) {
-      throw new Error(`Access denied: path escapes project directory`)
-    }
-
-    const nodes: Node[] = []
-    for (const entry of await fs.promises
-      .readdir(resolved, {
-        withFileTypes: true,
      })
-      .catch(() => [])) {
-      if (exclude.includes(entry.name)) continue
-      const fullPath = path.join(resolved, entry.name)
-      const relativePath = path.relative(Instance.directory, fullPath)
-      const type = entry.isDirectory() ? "directory" : "file"
-      nodes.push({
-        name: entry.name,
-        path: relativePath,
-        absolute: fullPath,
-        type,
-        ignored: ignored(type === "directory" ? relativePath + "/" : relativePath),
+
+      const list = Effect.fn("File.list")(function* (dir?: string) {
+        return yield* Effect.promise(async () => {
+          const exclude = [".git", ".DS_Store"]
+          let ignored = (_: string) => false
+          if (instance.project.vcs === "git") {
+            const ig = ignore()
+            const gitignore = path.join(instance.project.worktree, ".gitignore")
+            if (await Filesystem.exists(gitignore)) {
+              ig.add(await Filesystem.readText(gitignore))
+            }
+            const ignoreFile = path.join(instance.project.worktree, ".ignore")
+            if (await Filesystem.exists(ignoreFile)) {
+              ig.add(await Filesystem.readText(ignoreFile))
+            }
+            ignored = ig.ignores.bind(ig)
+          }
+
+          const resolved = dir ? path.join(instance.directory, dir) : instance.directory
+          if (!Instance.containsPath(resolved)) {
+            throw new Error("Access denied: path escapes project directory")
+          }
+
+          const nodes: File.Node[] = []
+          for (const entry of await fs.promises.readdir(resolved, { withFileTypes: true }).catch(() => [])) {
+            if (exclude.includes(entry.name)) continue
+            const absolute = path.join(resolved, entry.name)
+            const file = path.relative(instance.directory, absolute)
+            const type = entry.isDirectory() ? "directory" : "file"
+            nodes.push({
+              name: entry.name,
+              path: file,
+              absolute,
+              type,
+              ignored: ignored(type === "directory" ? file + "/" : file),
+            })
+          }
+
+          return nodes.sort((a, b) => {
+            if (a.type !== b.type) return a.type === "directory" ? -1 : 1
+            return a.name.localeCompare(b.name)
+          })
+        })
      })
-    }
-    return nodes.sort((a, b) => {
-      if (a.type !== b.type) {
-        return a.type === "directory" ? -1 : 1
-      }
-      return a.name.localeCompare(b.name)
-    })
-  }

-  export async function search(input: { query: string; limit?: number; dirs?: boolean; type?: "file" | "directory" }) {
-    const query = input.query.trim()
-    const limit = input.limit ?? 100
-    const kind = input.type ?? (input.dirs === false ? "file" : "all")
-    log.info("search", { query, kind })
+      const search = Effect.fn("File.search")(function* (input: {
+        query: string
+        limit?: number
+        dirs?: boolean
+        type?: "file" | "directory"
+      }) {
+        return yield* Effect.promise(async () => {
+          const query = input.query.trim()
+          const limit = input.limit ?? 100
+          const kind = input.type ?? (input.dirs === false ? "file" : "all")
+          log.info("search", { query, kind })

-    const result = await state().then((x) => x.files())
+          const result = await getFiles()
+          const preferHidden = query.startsWith(".") || query.includes("/.")

-    const hidden = (item: string) => {
-      const normalized = item.replaceAll("\\", "/").replace(/\/+$/, "")
-      return normalized.split("/").some((p) => p.startsWith(".") && p.length > 1)
-    }
-    const preferHidden = query.startsWith(".") || query.includes("/.")
-    const sortHiddenLast = (items: string[]) => {
-      if (preferHidden) return items
-      const visible: string[] = []
-      const hiddenItems: string[] = []
-      for (const item of items) {
-        const isHidden = hidden(item)
-        if (isHidden) hiddenItems.push(item)
-        if (!isHidden) visible.push(item)
-      }
-      return [...visible, ...hiddenItems]
-    }
-    if (!query) {
-      if (kind === "file") return result.files.slice(0, limit)
-      return sortHiddenLast(result.dirs.toSorted()).slice(0, limit)
-    }
+          if (!query) {
+            if (kind === "file") return result.files.slice(0, limit)
+            return sortHiddenLast(result.dirs.toSorted(), preferHidden).slice(0, limit)
+          }

-    const items =
-      kind === "file" ? result.files : kind === "directory" ? result.dirs : [...result.files, ...result.dirs]
+          const items =
+            kind === "file" ? result.files : kind === "directory" ? result.dirs : [...result.files, ...result.dirs]

-    const searchLimit = kind === "directory" && !preferHidden ? limit * 20 : limit
-    const sorted = fuzzysort.go(query, items, { limit: searchLimit }).map((r) => r.target)
-    const output = kind === "directory" ? sortHiddenLast(sorted).slice(0, limit) : sorted
+          const searchLimit = kind === "directory" && !preferHidden ? limit * 20 : limit
+          const sorted = fuzzysort.go(query, items, { limit: searchLimit }).map((item) => item.target)
+          const output = kind === "directory" ? sortHiddenLast(sorted, preferHidden).slice(0, limit) : sorted

-    log.info("search", { query, kind, results: output.length })
-    return output
-  }
+          log.info("search", { query, kind, results: output.length })
+          return output
+        })
+      })
+
+      log.info("init")
+      return Service.of({ init, status, read, list, search })
+    }),
+  )
 }
--- a/packages/opencode/src/file/time.ts
+++ b/packages/opencode/src/file/time.ts
@@ -1,71 +1,110 @@
-import { Instance } from "../project/instance"
-import { Log } from "../util/log"
-import { Flag } from "../flag/flag"
+import { DateTime, Effect, Layer, Semaphore, ServiceMap } from "effect"
+import { runPromiseInstance } from "@/effect/runtime"
+import { Flag } from "@/flag/flag"
+import type { SessionID } from "@/session/schema"
 import { Filesystem } from "../util/filesystem"
+import { Log } from "../util/log"

 export namespace FileTime {
  const log = Log.create({ service: "file.time" })
-  // Per-session read times plus per-file write locks.
-  // All tools that overwrite existing files should run their
-  // assert/read/write/update sequence inside withLock(filepath, ...)
-  // so concurrent writes to the same file are serialized.
-  export const state = Instance.state(() => {
-    const read: {
-      [sessionID: string]: {
-        [path: string]: Date | undefined
-      }
-    } = {}
-    const locks = new Map<string, Promise<void>>()
+
+  export type Stamp = {
+    readonly read: Date
+    readonly mtime: number | undefined
+    readonly ctime: number | undefined
+    readonly size: number | undefined
+  }
+
+  const stamp = Effect.fnUntraced(function* (file: string) {
+    const stat = Filesystem.stat(file)
+    const size = typeof stat?.size === "bigint" ? Number(stat.size) : stat?.size
    return {
-      read,
-      locks,
+      read: yield* DateTime.nowAsDate,
+      mtime: stat?.mtime?.getTime(),
+      ctime: stat?.ctime?.getTime(),
+      size,
    }
  })

-  export function read(sessionID: string, file: string) {
-    log.info("read", { sessionID, file })
-    const { read } = state()
-    read[sessionID] = read[sessionID] || {}
-    read[sessionID][file] = new Date()
+  const session = (reads: Map<SessionID, Map<string, Stamp>>, sessionID: SessionID) => {
+    const value = reads.get(sessionID)
+    if (value) return value
+
+    const next = new Map<string, Stamp>()
+    reads.set(sessionID, next)
+    return next
  }

-  export function get(sessionID: string, file: string) {
-    return state().read[sessionID]?.[file]
+  export interface Interface {
+    readonly read: (sessionID: SessionID, file: string) => Effect.Effect<void>
+    readonly get: (sessionID: SessionID, file: string) => Effect.Effect<Date | undefined>
+    readonly assert: (sessionID: SessionID, filepath: string) => Effect.Effect<void>
+    readonly withLock: <T>(filepath: string, fn: () => Promise<T>) => Effect.Effect<T>
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/FileTime") {}
+
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const disableCheck = yield* Flag.OPENCODE_DISABLE_FILETIME_CHECK
+      const reads = new Map<SessionID, Map<string, Stamp>>()
+      const locks = new Map<string, Semaphore.Semaphore>()
+
+      const getLock = (filepath: string) => {
+        const lock = locks.get(filepath)
+        if (lock) return lock
+
+        const next = Semaphore.makeUnsafe(1)
+        locks.set(filepath, next)
+        return next
+      }
+
+      const read = Effect.fn("FileTime.read")(function* (sessionID: SessionID, file: string) {
+        log.info("read", { sessionID, file })
+        session(reads, sessionID).set(file, yield* stamp(file))
+      })
+
+      const get = Effect.fn("FileTime.get")(function* (sessionID: SessionID, file: string) {
+        return reads.get(sessionID)?.get(file)?.read
+      })
+
+      const assert = Effect.fn("FileTime.assert")(function* (sessionID: SessionID, filepath: string) {
+        if (disableCheck) return
+
+        const time = reads.get(sessionID)?.get(filepath)
+        if (!time) throw new Error(`You must read file ${filepath} before overwriting it. Use the Read tool first`)
+
+        const next = yield* stamp(filepath)
+        const changed = next.mtime !== time.mtime || next.ctime !== time.ctime || next.size !== time.size
+        if (!changed) return
+
+        throw new Error(
+          `File ${filepath} has been modified since it was last read.\nLast modification: ${new Date(next.mtime ?? next.read.getTime()).toISOString()}\nLast read: ${time.read.toISOString()}\n\nPlease read the file again before modifying it.`,
+        )
+      })
+
+      const withLock = Effect.fn("FileTime.withLock")(function* <T>(filepath: string, fn: () => Promise<T>) {
+        return yield* Effect.promise(fn).pipe(getLock(filepath).withPermits(1))
+      })
+
+      return Service.of({ read, get, assert, withLock })
+    }),
+  )
+
+  export function read(sessionID: SessionID, file: string) {
+    return runPromiseInstance(Service.use((s) => s.read(sessionID, file)))
+  }
+
+  export function get(sessionID: SessionID, file: string) {
+    return runPromiseInstance(Service.use((s) => s.get(sessionID, file)))
+  }
+
+  export async function assert(sessionID: SessionID, filepath: string) {
+    return runPromiseInstance(Service.use((s) => s.assert(sessionID, filepath)))
  }

  export async function withLock<T>(filepath: string, fn: () => Promise<T>): Promise<T> {
-    const current = state()
-    const currentLock = current.locks.get(filepath) ?? Promise.resolve()
-    let release: () => void = () => {}
-    const nextLock = new Promise<void>((resolve) => {
-      release = resolve
-    })
-    const chained = currentLock.then(() => nextLock)
-    current.locks.set(filepath, chained)
-    await currentLock
-    try {
-      return await fn()
-    } finally {
-      release()
-      if (current.locks.get(filepath) === chained) {
-        current.locks.delete(filepath)
-      }
-    }
-  }
-
-  export async function assert(sessionID: string, filepath: string) {
-    if (Flag.OPENCODE_DISABLE_FILETIME_CHECK === true) {
-      return
-    }
-
-    const time = get(sessionID, filepath)
-    if (!time) throw new Error(`You must read file ${filepath} before overwriting it. Use the Read tool first`)
-    const mtime = Filesystem.stat(filepath)?.mtime
-    // Allow a 50ms tolerance for Windows NTFS timestamp fuzziness / async flushing
-    if (mtime && mtime.getTime() > time.getTime() + 50) {
-      throw new Error(
-        `File ${filepath} has been modified since it was last read.\nLast modification: ${mtime.toISOString()}\nLast read: ${time.toISOString()}\n\nPlease read the file again before modifying it.`,
-      )
-    }
+    return runPromiseInstance(Service.use((s) => s.withLock(filepath, fn)))
  }
 }
--- a/packages/opencode/src/file/watcher.ts
+++ b/packages/opencode/src/file/watcher.ts
@@ -1,27 +1,27 @@
-import { BusEvent } from "@/bus/bus-event"
-import { Bus } from "@/bus"
-import z from "zod"
-import { Instance } from "../project/instance"
-import { Log } from "../util/log"
-import { FileIgnore } from "./ignore"
-import { Config } from "../config/config"
-import path from "path"
+import { Cause, Effect, Layer, ServiceMap } from "effect"
 // @ts-ignore
 import { createWrapper } from "@parcel/watcher/wrapper"
-import { lazy } from "@/util/lazy"
-import { withTimeout } from "@/util/timeout"
 import type ParcelWatcher from "@parcel/watcher"
-import { Flag } from "@/flag/flag"
 import { readdir } from "fs/promises"
+import path from "path"
+import z from "zod"
+import { Bus } from "@/bus"
+import { BusEvent } from "@/bus/bus-event"
+import { InstanceContext } from "@/effect/instance-context"
+import { Flag } from "@/flag/flag"
+import { Instance } from "@/project/instance"
 import { git } from "@/util/git"
+import { lazy } from "@/util/lazy"
+import { Config } from "../config/config"
+import { FileIgnore } from "./ignore"
 import { Protected } from "./protected"
-
-const SUBSCRIBE_TIMEOUT_MS = 10_000
+import { Log } from "../util/log"

 declare const OPENCODE_LIBC: string | undefined

 export namespace FileWatcher {
  const log = Log.create({ service: "file.watcher" })
+  const SUBSCRIBE_TIMEOUT_MS = 10_000

  export const Event = {
    Updated: BusEvent.define(
@@ -45,82 +45,90 @@ export namespace FileWatcher {
    }
  })

-  const state = Instance.state(
-    async () => {
-      log.info("init")
-      const cfg = await Config.get()
-      const backend = (() => {
-        if (process.platform === "win32") return "windows"
-        if (process.platform === "darwin") return "fs-events"
-        if (process.platform === "linux") return "inotify"
-      })()
+  function getBackend() {
+    if (process.platform === "win32") return "windows"
+    if (process.platform === "darwin") return "fs-events"
+    if (process.platform === "linux") return "inotify"
+  }
+
+  export const hasNativeBinding = () => !!watcher()
+
+  export class Service extends ServiceMap.Service<Service, {}>()("@opencode/FileWatcher") {}
+
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const instance = yield* InstanceContext
+      if (yield* Flag.OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER) return Service.of({})
+
+      log.info("init", { directory: instance.directory })
+
+      const backend = getBackend()
      if (!backend) {
-        log.error("watcher backend not supported", { platform: process.platform })
-        return {}
+        log.error("watcher backend not supported", { directory: instance.directory, platform: process.platform })
+        return Service.of({})
      }
-      log.info("watcher backend", { platform: process.platform, backend })

      const w = watcher()
-      if (!w) return {}
+      if (!w) return Service.of({})

-      const subscribe: ParcelWatcher.SubscribeCallback = (err, evts) => {
+      log.info("watcher backend", { directory: instance.directory, platform: process.platform, backend })
+
+      const subs: ParcelWatcher.AsyncSubscription[] = []
+      yield* Effect.addFinalizer(() => Effect.promise(() => Promise.allSettled(subs.map((sub) => sub.unsubscribe()))))
+
+      const cb: ParcelWatcher.SubscribeCallback = Instance.bind((err, evts) => {
        if (err) return
        for (const evt of evts) {
          if (evt.type === "create") Bus.publish(Event.Updated, { file: evt.path, event: "add" })
          if (evt.type === "update") Bus.publish(Event.Updated, { file: evt.path, event: "change" })
          if (evt.type === "delete") Bus.publish(Event.Updated, { file: evt.path, event: "unlink" })
        }
+      })
+
+      const subscribe = (dir: string, ignore: string[]) => {
+        const pending = w.subscribe(dir, cb, { ignore, backend })
+        return Effect.gen(function* () {
+          const sub = yield* Effect.promise(() => pending)
+          subs.push(sub)
+        }).pipe(
+          Effect.timeout(SUBSCRIBE_TIMEOUT_MS),
+          Effect.catchCause((cause) => {
+            log.error("failed to subscribe", { dir, cause: Cause.pretty(cause) })
+            pending.then((s) => s.unsubscribe()).catch(() => {})
+            return Effect.void
+          }),
+        )
      }

-      const subs: ParcelWatcher.AsyncSubscription[] = []
+      const cfg = yield* Effect.promise(() => Config.get())
      const cfgIgnores = cfg.watcher?.ignore ?? []

-      if (Flag.OPENCODE_EXPERIMENTAL_FILEWATCHER) {
-        const pending = w.subscribe(Instance.directory, subscribe, {
-          ignore: [...FileIgnore.PATTERNS, ...cfgIgnores, ...Protected.paths()],
-          backend,
-        })
-        const sub = await withTimeout(pending, SUBSCRIBE_TIMEOUT_MS).catch((err) => {
-          log.error("failed to subscribe to Instance.directory", { error: err })
-          pending.then((s) => s.unsubscribe()).catch(() => {})
-          return undefined
-        })
-        if (sub) subs.push(sub)
+      if (yield* Flag.OPENCODE_EXPERIMENTAL_FILEWATCHER) {
+        yield* subscribe(instance.directory, [...FileIgnore.PATTERNS, ...cfgIgnores, ...Protected.paths()])
      }

-      if (Instance.project.vcs === "git") {
-        const result = await git(["rev-parse", "--git-dir"], {
-          cwd: Instance.worktree,
-        })
-        const vcsDir = result.exitCode === 0 ? path.resolve(Instance.worktree, result.text().trim()) : undefined
+      if (instance.project.vcs === "git") {
+        const result = yield* Effect.promise(() =>
+          git(["rev-parse", "--git-dir"], {
+            cwd: instance.project.worktree,
+          }),
+        )
+        const vcsDir = result.exitCode === 0 ? path.resolve(instance.project.worktree, result.text().trim()) : undefined
        if (vcsDir && !cfgIgnores.includes(".git") && !cfgIgnores.includes(vcsDir)) {
-          const gitDirContents = await readdir(vcsDir).catch(() => [])
-          const ignoreList = gitDirContents.filter((entry) => entry !== "HEAD")
-          const pending = w.subscribe(vcsDir, subscribe, {
-            ignore: ignoreList,
-            backend,
-          })
-          const sub = await withTimeout(pending, SUBSCRIBE_TIMEOUT_MS).catch((err) => {
-            log.error("failed to subscribe to vcsDir", { error: err })
-            pending.then((s) => s.unsubscribe()).catch(() => {})
-            return undefined
-          })
-          if (sub) subs.push(sub)
+          const ignore = (yield* Effect.promise(() => readdir(vcsDir).catch(() => []))).filter(
+            (entry) => entry !== "HEAD",
+          )
+          yield* subscribe(vcsDir, ignore)
        }
      }

-      return { subs }
-    },
-    async (state) => {
-      if (!state.subs) return
-      await Promise.all(state.subs.map((sub) => sub?.unsubscribe()))
-    },
+      return Service.of({})
+    }).pipe(
+      Effect.catchCause((cause) => {
+        log.error("failed to init watcher service", { cause: Cause.pretty(cause) })
+        return Effect.succeed(Service.of({}))
+      }),
+    ),
  )
-
-  export function init() {
-    if (Flag.OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER) {
-      return
-    }
-    state()
-  }
 }
--- a/packages/opencode/src/flag/flag.ts
+++ b/packages/opencode/src/flag/flag.ts
@@ -1,3 +1,5 @@
+import { Config } from "effect"
+
 function truthy(key: string) {
  const value = process.env[key]?.toLowerCase()
  return value === "true" || value === "1"
@@ -40,8 +42,12 @@ export namespace Flag {

  // Experimental
  export const OPENCODE_EXPERIMENTAL = truthy("OPENCODE_EXPERIMENTAL")
-  export const OPENCODE_EXPERIMENTAL_FILEWATCHER = truthy("OPENCODE_EXPERIMENTAL_FILEWATCHER")
-  export const OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER = truthy("OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER")
+  export const OPENCODE_EXPERIMENTAL_FILEWATCHER = Config.boolean("OPENCODE_EXPERIMENTAL_FILEWATCHER").pipe(
+    Config.withDefault(false),
+  )
+  export const OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER = Config.boolean(
+    "OPENCODE_EXPERIMENTAL_DISABLE_FILEWATCHER",
+  ).pipe(Config.withDefault(false))
  export const OPENCODE_EXPERIMENTAL_ICON_DISCOVERY =
    OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_ICON_DISCOVERY")

@@ -55,7 +61,9 @@ export namespace Flag {
  export const OPENCODE_EXPERIMENTAL_OXFMT = OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_OXFMT")
  export const OPENCODE_EXPERIMENTAL_LSP_TY = truthy("OPENCODE_EXPERIMENTAL_LSP_TY")
  export const OPENCODE_EXPERIMENTAL_LSP_TOOL = OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_LSP_TOOL")
-  export const OPENCODE_DISABLE_FILETIME_CHECK = truthy("OPENCODE_DISABLE_FILETIME_CHECK")
+  export const OPENCODE_DISABLE_FILETIME_CHECK = Config.boolean("OPENCODE_DISABLE_FILETIME_CHECK").pipe(
+    Config.withDefault(false),
+  )
  export const OPENCODE_EXPERIMENTAL_PLAN_MODE = OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_PLAN_MODE")
  export const OPENCODE_EXPERIMENTAL_WORKSPACES = OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_WORKSPACES")
  export const OPENCODE_EXPERIMENTAL_MARKDOWN = !falsy("OPENCODE_EXPERIMENTAL_MARKDOWN")
--- a/packages/opencode/src/format/index.ts
+++ b/packages/opencode/src/format/index.ts
@@ -1,14 +1,16 @@
-import { Bus } from "../bus"
-import { File } from "../file"
-import { Log } from "../util/log"
+import { Effect, Layer, ServiceMap } from "effect"
+import { runPromiseInstance } from "@/effect/runtime"
+import { InstanceContext } from "@/effect/instance-context"
 import path from "path"
-import z from "zod"
-
-import * as Formatter from "./formatter"
-import { Config } from "../config/config"
 import { mergeDeep } from "remeda"
+import z from "zod"
+import { Bus } from "../bus"
+import { Config } from "../config/config"
+import { File } from "../file"
 import { Instance } from "../project/instance"
 import { Process } from "../util/process"
+import { Log } from "../util/log"
+import * as Formatter from "./formatter"

 export namespace Format {
  const log = Log.create({ service: "format" })
@@ -24,117 +26,129 @@ export namespace Format {
    })
  export type Status = z.infer<typeof Status>

-  const state = Instance.state(async () => {
-    const enabled: Record<string, boolean> = {}
-    const cfg = await Config.get()
+  export interface Interface {
+    readonly status: () => Effect.Effect<Status[]>
+  }

-    const formatters: Record<string, Formatter.Info> = {}
-    if (cfg.formatter === false) {
-      log.info("all formatters are disabled")
-      return {
-        enabled,
-        formatters,
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/Format") {}
+
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const instance = yield* InstanceContext
+
+      const enabled: Record<string, boolean> = {}
+      const formatters: Record<string, Formatter.Info> = {}
+
+      const cfg = yield* Effect.promise(() => Config.get())
+
+      if (cfg.formatter !== false) {
+        for (const item of Object.values(Formatter)) {
+          formatters[item.name] = item
+        }
+        for (const [name, item] of Object.entries(cfg.formatter ?? {})) {
+          if (item.disabled) {
+            delete formatters[name]
+            continue
+          }
+          const info = mergeDeep(formatters[name] ?? {}, {
+            command: [],
+            extensions: [],
+            ...item,
+          })
+
+          if (info.command.length === 0) continue
+
+          formatters[name] = {
+            ...info,
+            name,
+            enabled: async () => true,
+          }
+        }
+      } else {
+        log.info("all formatters are disabled")
      }
-    }

-    for (const item of Object.values(Formatter)) {
-      formatters[item.name] = item
-    }
-    for (const [name, item] of Object.entries(cfg.formatter ?? {})) {
-      if (item.disabled) {
-        delete formatters[name]
-        continue
+      async function isEnabled(item: Formatter.Info) {
+        let status = enabled[item.name]
+        if (status === undefined) {
+          status = await item.enabled()
+          enabled[item.name] = status
+        }
+        return status
      }
-      const result: Formatter.Info = mergeDeep(formatters[name] ?? {}, {
-        command: [],
-        extensions: [],
-        ...item,
-      })

-      if (result.command.length === 0) continue
+      async function getFormatter(ext: string) {
+        const result = []
+        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
+          log.info("enabled", { name: item.name, ext })
+          result.push(item)
+        }
+        return result
+      }

-      result.enabled = async () => true
-      result.name = name
-      formatters[name] = result
-    }
+      const unsubscribe = Bus.subscribe(
+        File.Event.Edited,
+        Instance.bind(async (payload) => {
+          const file = payload.properties.file
+          log.info("formatting", { file })
+          const ext = path.extname(file)

-    return {
-      enabled,
-      formatters,
-    }
-  })
+          for (const item of await getFormatter(ext)) {
+            log.info("running", { command: item.command })
+            try {
+              const proc = Process.spawn(
+                item.command.map((x) => x.replace("$FILE", file)),
+                {
+                  cwd: instance.directory,
+                  env: { ...process.env, ...item.environment },
+                  stdout: "ignore",
+                  stderr: "ignore",
+                },
+              )
+              const exit = await proc.exited
+              if (exit !== 0) {
+                log.error("failed", {
+                  command: item.command,
+                  ...item.environment,
+                })
+              }
+            } catch (error) {
+              log.error("failed to format file", {
+                error,
+                command: item.command,
+                ...item.environment,
+                file,
+              })
+            }
+          }
+        }),
+      )

-  async function isEnabled(item: Formatter.Info) {
-    const s = await state()
-    let status = s.enabled[item.name]
-    if (status === undefined) {
-      status = await item.enabled()
-      s.enabled[item.name] = status
-    }
-    return status
-  }
+      yield* Effect.addFinalizer(() => Effect.sync(unsubscribe))
+      log.info("init")

-  async function getFormatter(ext: string) {
-    const formatters = await state().then((x) => x.formatters)
-    const result = []
-    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
-      log.info("enabled", { name: item.name, ext })
-      result.push(item)
-    }
-    return result
-  }
-
-  export async function status() {
-    const s = await state()
-    const result: Status[] = []
-    for (const formatter of Object.values(s.formatters)) {
-      const enabled = await isEnabled(formatter)
-      result.push({
-        name: formatter.name,
-        extensions: formatter.extensions,
-        enabled,
-      })
-    }
-    return result
-  }
-
-  export function init() {
-    log.info("init")
-    Bus.subscribe(File.Event.Edited, async (payload) => {
-      const file = payload.properties.file
-      log.info("formatting", { file })
-      const ext = path.extname(file)
-
-      for (const item of await getFormatter(ext)) {
-        log.info("running", { command: item.command })
-        try {
-          const proc = Process.spawn(
-            item.command.map((x) => x.replace("$FILE", file)),
-            {
-              cwd: Instance.directory,
-              env: { ...process.env, ...item.environment },
-              stdout: "ignore",
-              stderr: "ignore",
-            },
-          )
-          const exit = await proc.exited
-          if (exit !== 0)
-            log.error("failed", {
-              command: item.command,
-              ...item.environment,
-            })
-        } catch (error) {
-          log.error("failed to format file", {
-            error,
-            command: item.command,
-            ...item.environment,
-            file,
+      const status = Effect.fn("Format.status")(function* () {
+        const result: Status[] = []
+        for (const formatter of Object.values(formatters)) {
+          const isOn = yield* Effect.promise(() => isEnabled(formatter))
+          result.push({
+            name: formatter.name,
+            extensions: formatter.extensions,
+            enabled: isOn,
          })
        }
-      }
-    })
+        return result
+      })
+
+      return Service.of({ status })
+    }),
+  )
+
+  export async function status() {
+    return runPromiseInstance(Service.use((s) => s.status()))
  }
 }
--- a/packages/opencode/src/index.ts
+++ b/packages/opencode/src/index.ts
@@ -47,11 +47,6 @@ process.on("uncaughtException", (e) => {
  })
 })

-// Ensure the process exits on terminal hangup (eg. closing the terminal tab).
-// Without this, long-running commands like `serve` block on a never-resolving
-// promise and survive as orphaned processes.
-process.on("SIGHUP", () => process.exit())
-
 let cli = yargs(hideBin(process.argv))
  .parserConfiguration({ "populate--": true })
  .scriptName("opencode")
--- a/packages/opencode/src/permission/effect.ts
+++ b/packages/opencode/src/permission/effect.ts
@@ -0,0 +1,244 @@
+import { Bus } from "@/bus"
+import { BusEvent } from "@/bus/bus-event"
+import { InstanceContext } from "@/effect/instance-context"
+import { ProjectID } from "@/project/schema"
+import { MessageID, SessionID } from "@/session/schema"
+import { PermissionTable } from "@/session/session.sql"
+import { Database, eq } from "@/storage/db"
+import { Log } from "@/util/log"
+import { Wildcard } from "@/util/wildcard"
+import { Deferred, Effect, Layer, Schema, ServiceMap } from "effect"
+import z from "zod"
+import { PermissionID } from "./schema"
+
+export namespace PermissionEffect {
+  const log = Log.create({ service: "permission" })
+
+  export const Action = z.enum(["allow", "deny", "ask"]).meta({
+    ref: "PermissionAction",
+  })
+  export type Action = z.infer<typeof Action>
+
+  export const Rule = z
+    .object({
+      permission: z.string(),
+      pattern: z.string(),
+      action: Action,
+    })
+    .meta({
+      ref: "PermissionRule",
+    })
+  export type Rule = z.infer<typeof Rule>
+
+  export const Ruleset = Rule.array().meta({
+    ref: "PermissionRuleset",
+  })
+  export type Ruleset = z.infer<typeof Ruleset>
+
+  export const Request = z
+    .object({
+      id: PermissionID.zod,
+      sessionID: SessionID.zod,
+      permission: z.string(),
+      patterns: z.string().array(),
+      metadata: z.record(z.string(), z.any()),
+      always: z.string().array(),
+      tool: z
+        .object({
+          messageID: MessageID.zod,
+          callID: z.string(),
+        })
+        .optional(),
+    })
+    .meta({
+      ref: "PermissionRequest",
+    })
+  export type Request = z.infer<typeof Request>
+
+  export const Reply = z.enum(["once", "always", "reject"])
+  export type Reply = z.infer<typeof Reply>
+
+  export const Approval = z.object({
+    projectID: ProjectID.zod,
+    patterns: z.string().array(),
+  })
+
+  export const Event = {
+    Asked: BusEvent.define("permission.asked", Request),
+    Replied: BusEvent.define(
+      "permission.replied",
+      z.object({
+        sessionID: SessionID.zod,
+        requestID: PermissionID.zod,
+        reply: Reply,
+      }),
+    ),
+  }
+
+  export class RejectedError extends Schema.TaggedErrorClass<RejectedError>()("PermissionRejectedError", {}) {
+    override get message() {
+      return "The user rejected permission to use this specific tool call."
+    }
+  }
+
+  export class CorrectedError extends Schema.TaggedErrorClass<CorrectedError>()("PermissionCorrectedError", {
+    feedback: Schema.String,
+  }) {
+    override get message() {
+      return `The user rejected permission to use this specific tool call with the following feedback: ${this.feedback}`
+    }
+  }
+
+  export class DeniedError extends Schema.TaggedErrorClass<DeniedError>()("PermissionDeniedError", {
+    ruleset: Schema.Any,
+  }) {
+    override get message() {
+      return `The user has specified a rule which prevents you from using this specific tool call. Here are some of the relevant rules ${JSON.stringify(this.ruleset)}`
+    }
+  }
+
+  export type Error = DeniedError | RejectedError | CorrectedError
+
+  export const AskInput = Request.partial({ id: true }).extend({
+    ruleset: Ruleset,
+  })
+
+  export const ReplyInput = z.object({
+    requestID: PermissionID.zod,
+    reply: Reply,
+    message: z.string().optional(),
+  })
+
+  export interface Interface {
+    readonly ask: (input: z.infer<typeof AskInput>) => Effect.Effect<void, Error>
+    readonly reply: (input: z.infer<typeof ReplyInput>) => Effect.Effect<void>
+    readonly list: () => Effect.Effect<Request[]>
+  }
+
+  interface PendingEntry {
+    info: Request
+    deferred: Deferred.Deferred<void, RejectedError | CorrectedError>
+  }
+
+  export function evaluate(permission: string, pattern: string, ...rulesets: Ruleset[]): Rule {
+    const rules = rulesets.flat()
+    log.info("evaluate", { permission, pattern, ruleset: rules })
+    const match = rules.findLast(
+      (rule) => Wildcard.match(permission, rule.permission) && Wildcard.match(pattern, rule.pattern),
+    )
+    return match ?? { action: "ask", permission, pattern: "*" }
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/PermissionNext") {}
+
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const { project } = yield* InstanceContext
+      const row = Database.use((db) =>
+        db.select().from(PermissionTable).where(eq(PermissionTable.project_id, project.id)).get(),
+      )
+      const pending = new Map<PermissionID, PendingEntry>()
+      const approved: Ruleset = row?.data ?? []
+
+      const ask = Effect.fn("Permission.ask")(function* (input: z.infer<typeof AskInput>) {
+        const { ruleset, ...request } = input
+        let needsAsk = false
+
+        for (const pattern of request.patterns) {
+          const rule = evaluate(request.permission, pattern, ruleset, approved)
+          log.info("evaluated", { permission: request.permission, pattern, action: rule })
+          if (rule.action === "deny") {
+            return yield* new DeniedError({
+              ruleset: ruleset.filter((rule) => Wildcard.match(request.permission, rule.permission)),
+            })
+          }
+          if (rule.action === "allow") continue
+          needsAsk = true
+        }
+
+        if (!needsAsk) return
+
+        const id = request.id ?? PermissionID.ascending()
+        const info: Request = {
+          id,
+          ...request,
+        }
+        log.info("asking", { id, permission: info.permission, patterns: info.patterns })
+
+        const deferred = yield* Deferred.make<void, RejectedError | CorrectedError>()
+        pending.set(id, { info, deferred })
+        void Bus.publish(Event.Asked, info)
+        return yield* Effect.ensuring(
+          Deferred.await(deferred),
+          Effect.sync(() => {
+            pending.delete(id)
+          }),
+        )
+      })
+
+      const reply = Effect.fn("Permission.reply")(function* (input: z.infer<typeof ReplyInput>) {
+        const existing = pending.get(input.requestID)
+        if (!existing) return
+
+        pending.delete(input.requestID)
+        void Bus.publish(Event.Replied, {
+          sessionID: existing.info.sessionID,
+          requestID: existing.info.id,
+          reply: input.reply,
+        })
+
+        if (input.reply === "reject") {
+          yield* Deferred.fail(
+            existing.deferred,
+            input.message ? new CorrectedError({ feedback: input.message }) : new RejectedError(),
+          )
+
+          for (const [id, item] of pending.entries()) {
+            if (item.info.sessionID !== existing.info.sessionID) continue
+            pending.delete(id)
+            void Bus.publish(Event.Replied, {
+              sessionID: item.info.sessionID,
+              requestID: item.info.id,
+              reply: "reject",
+            })
+            yield* Deferred.fail(item.deferred, new RejectedError())
+          }
+          return
+        }
+
+        yield* Deferred.succeed(existing.deferred, undefined)
+        if (input.reply === "once") return
+
+        for (const pattern of existing.info.always) {
+          approved.push({
+            permission: existing.info.permission,
+            pattern,
+            action: "allow",
+          })
+        }
+
+        for (const [id, item] of pending.entries()) {
+          if (item.info.sessionID !== existing.info.sessionID) continue
+          const ok = item.info.patterns.every(
+            (pattern) => evaluate(item.info.permission, pattern, approved).action === "allow",
+          )
+          if (!ok) continue
+          pending.delete(id)
+          void Bus.publish(Event.Replied, {
+            sessionID: item.info.sessionID,
+            requestID: item.info.id,
+            reply: "always",
+          })
+          yield* Deferred.succeed(item.deferred, undefined)
+        }
+      })
+
+      const list = Effect.fn("Permission.list")(function* () {
+        return Array.from(pending.values(), (item) => item.info)
+      })
+
+      return Service.of({ ask, reply, list })
+    }),
+  )
+}
--- a/packages/opencode/src/permission/index.ts
+++ b/packages/opencode/src/permission/index.ts
@@ -1,210 +1,82 @@
-import { BusEvent } from "@/bus/bus-event"
-import { Bus } from "@/bus"
-import { SessionID, MessageID } from "@/session/schema"
-import z from "zod"
-import { Log } from "../util/log"
-import { Plugin } from "../plugin"
-import { Instance } from "../project/instance"
-import { Wildcard } from "../util/wildcard"
-import { PermissionID } from "./schema"
+import { runPromiseInstance } from "@/effect/runtime"
+import { Config } from "@/config/config"
+import { fn } from "@/util/fn"
+import { Wildcard } from "@/util/wildcard"
+import os from "os"
+import { PermissionEffect as S } from "./effect"

-export namespace Permission {
-  const log = Log.create({ service: "permission" })
-
-  function toKeys(pattern: Info["pattern"], type: string): string[] {
-    return pattern === undefined ? [type] : Array.isArray(pattern) ? pattern : [pattern]
+export namespace PermissionNext {
+  function expand(pattern: string): string {
+    if (pattern.startsWith("~/")) return os.homedir() + pattern.slice(1)
+    if (pattern === "~") return os.homedir()
+    if (pattern.startsWith("$HOME/")) return os.homedir() + pattern.slice(5)
+    if (pattern.startsWith("$HOME")) return os.homedir() + pattern.slice(5)
+    return pattern
  }

-  function covered(keys: string[], approved: Map<string, boolean>): boolean {
-    return keys.every((k) => {
-      for (const p of approved.keys()) {
-        if (Wildcard.match(k, p)) return true
-      }
-      return false
-    })
-  }
+  export const Action = S.Action
+  export type Action = S.Action
+  export const Rule = S.Rule
+  export type Rule = S.Rule
+  export const Ruleset = S.Ruleset
+  export type Ruleset = S.Ruleset
+  export const Request = S.Request
+  export type Request = S.Request
+  export const Reply = S.Reply
+  export type Reply = S.Reply
+  export const Approval = S.Approval
+  export const Event = S.Event
+  export const Service = S.Service
+  export const RejectedError = S.RejectedError
+  export const CorrectedError = S.CorrectedError
+  export const DeniedError = S.DeniedError

-  export const Info = z
-    .object({
-      id: PermissionID.zod,
-      type: z.string(),
-      pattern: z.union([z.string(), z.array(z.string())]).optional(),
-      sessionID: SessionID.zod,
-      messageID: MessageID.zod,
-      callID: z.string().optional(),
-      message: z.string(),
-      metadata: z.record(z.string(), z.any()),
-      time: z.object({
-        created: z.number(),
-      }),
-    })
-    .meta({
-      ref: "Permission",
-    })
-  export type Info = z.infer<typeof Info>
-
-  interface PendingEntry {
-    info: Info
-    resolve: () => void
-    reject: (e: any) => void
-  }
-
-  export const Event = {
-    Updated: BusEvent.define("permission.updated", Info),
-    Replied: BusEvent.define(
-      "permission.replied",
-      z.object({
-        sessionID: SessionID.zod,
-        permissionID: PermissionID.zod,
-        response: z.string(),
-      }),
-    ),
-  }
-
-  const state = Instance.state(
-    () => ({
-      pending: new Map<SessionID, Map<PermissionID, PendingEntry>>(),
-      approved: new Map<SessionID, Map<string, boolean>>(),
-    }),
-    async (state) => {
-      for (const session of state.pending.values()) {
-        for (const item of session.values()) {
-          item.reject(new RejectedError(item.info.sessionID, item.info.id, item.info.callID, item.info.metadata))
-        }
-      }
-    },
-  )
-
-  export function pending() {
-    return state().pending
-  }
-
-  export function list() {
-    const { pending } = state()
-    const result: Info[] = []
-    for (const session of pending.values()) {
-      for (const item of session.values()) {
-        result.push(item.info)
-      }
-    }
-    return result.sort((a, b) => a.id.localeCompare(b.id))
-  }
-
-  export async function ask(input: {
-    type: Info["type"]
-    message: Info["message"]
-    pattern?: Info["pattern"]
-    callID?: Info["callID"]
-    sessionID: Info["sessionID"]
-    messageID: Info["messageID"]
-    metadata: Info["metadata"]
-  }) {
-    const { pending, approved } = state()
-    log.info("asking", {
-      sessionID: input.sessionID,
-      messageID: input.messageID,
-      toolCallID: input.callID,
-      pattern: input.pattern,
-    })
-    const approvedForSession = approved.get(input.sessionID)
-    const keys = toKeys(input.pattern, input.type)
-    if (approvedForSession && covered(keys, approvedForSession)) return
-    const info: Info = {
-      id: PermissionID.ascending(),
-      type: input.type,
-      pattern: input.pattern,
-      sessionID: input.sessionID,
-      messageID: input.messageID,
-      callID: input.callID,
-      message: input.message,
-      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, info.metadata)
-      case "allow":
-        return
-    }
-
-    if (!pending.has(input.sessionID)) pending.set(input.sessionID, new Map())
-    return new Promise<void>((resolve, reject) => {
-      pending.get(input.sessionID)!.set(info.id, {
-        info,
-        resolve,
-        reject,
-      })
-      Bus.publish(Event.Updated, info)
-    })
-  }
-
-  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 session = pending.get(input.sessionID)
-    const match = session?.get(input.permissionID)
-    if (!session || !match) return
-    session.delete(input.permissionID)
-    if (session.size === 0) pending.delete(input.sessionID)
-    Bus.publish(Event.Replied, {
-      sessionID: input.sessionID,
-      permissionID: input.permissionID,
-      response: input.response,
-    })
-    if (input.response === "reject") {
-      match.reject(new RejectedError(input.sessionID, input.permissionID, match.info.callID, match.info.metadata))
-      return
-    }
-    match.resolve()
-    if (input.response === "always") {
-      if (!approved.has(input.sessionID)) approved.set(input.sessionID, new Map())
-      const approvedSession = approved.get(input.sessionID)!
-      const approveKeys = toKeys(match.info.pattern, match.info.type)
-      for (const k of approveKeys) {
-        approvedSession.set(k, true)
-      }
-      const items = pending.get(input.sessionID)
-      if (!items) return
-      const toRespond: Info[] = []
-      for (const item of items.values()) {
-        const itemKeys = toKeys(item.info.pattern, item.info.type)
-        if (covered(itemKeys, approvedSession)) {
-          toRespond.push(item.info)
-        }
-      }
-      for (const item of toRespond) {
-        respond({
-          sessionID: item.sessionID,
-          permissionID: item.id,
-          response: input.response,
+  export function fromConfig(permission: Config.Permission) {
+    const ruleset: Ruleset = []
+    for (const [key, value] of Object.entries(permission)) {
+      if (typeof value === "string") {
+        ruleset.push({
+          permission: key,
+          action: value,
+          pattern: "*",
        })
+        continue
      }
-    }
-  }
-
-  export class RejectedError extends Error {
-    constructor(
-      public readonly sessionID: SessionID,
-      public readonly permissionID: PermissionID,
-      public readonly toolCallID?: string,
-      public readonly metadata?: Record<string, any>,
-      public readonly reason?: string,
-    ) {
-      super(
-        reason !== undefined
-          ? reason
-          : `The user rejected permission to use this specific tool call. You may try again with different parameters.`,
+      ruleset.push(
+        ...Object.entries(value).map(([pattern, action]) => ({ permission: key, pattern: expand(pattern), action })),
      )
    }
+    return ruleset
+  }
+
+  export function merge(...rulesets: Ruleset[]): Ruleset {
+    return rulesets.flat()
+  }
+
+  export const ask = fn(S.AskInput, async (input) => runPromiseInstance(S.Service.use((service) => service.ask(input))))
+
+  export const reply = fn(S.ReplyInput, async (input) =>
+    runPromiseInstance(S.Service.use((service) => service.reply(input))),
+  )
+
+  export async function list() {
+    return runPromiseInstance(S.Service.use((service) => service.list()))
+  }
+
+  export function evaluate(permission: string, pattern: string, ...rulesets: Ruleset[]): Rule {
+    return S.evaluate(permission, pattern, ...rulesets)
+  }
+
+  const EDIT_TOOLS = ["edit", "write", "patch", "multiedit"]
+
+  export function disabled(tools: string[], ruleset: Ruleset): Set<string> {
+    const result = new Set<string>()
+    for (const tool of tools) {
+      const permission = EDIT_TOOLS.includes(tool) ? "edit" : tool
+      const rule = ruleset.findLast((rule) => Wildcard.match(permission, rule.permission))
+      if (!rule) continue
+      if (rule.pattern === "*" && rule.action === "deny") result.add(tool)
+    }
+    return result
  }
 }
--- a/packages/opencode/src/permission/next.ts
+++ b/packages/opencode/src/permission/next.ts
@@ -1,285 +0,0 @@
-import { Bus } from "@/bus"
-import { BusEvent } from "@/bus/bus-event"
-import { Config } from "@/config/config"
-import { SessionID, MessageID } from "@/session/schema"
-import { PermissionID } from "./schema"
-import { Instance } from "@/project/instance"
-import { Database, eq } from "@/storage/db"
-import { PermissionTable } from "@/session/session.sql"
-import { fn } from "@/util/fn"
-import { Log } from "@/util/log"
-import { ProjectID } from "@/project/schema"
-import { Wildcard } from "@/util/wildcard"
-import os from "os"
-import z from "zod"
-
-export namespace PermissionNext {
-  const log = Log.create({ service: "permission" })
-
-  function expand(pattern: string): string {
-    if (pattern.startsWith("~/")) return os.homedir() + pattern.slice(1)
-    if (pattern === "~") return os.homedir()
-    if (pattern.startsWith("$HOME/")) return os.homedir() + pattern.slice(5)
-    if (pattern.startsWith("$HOME")) return os.homedir() + pattern.slice(5)
-    return pattern
-  }
-
-  export const Action = z.enum(["allow", "deny", "ask"]).meta({
-    ref: "PermissionAction",
-  })
-  export type Action = z.infer<typeof Action>
-
-  export const Rule = z
-    .object({
-      permission: z.string(),
-      pattern: z.string(),
-      action: Action,
-    })
-    .meta({
-      ref: "PermissionRule",
-    })
-  export type Rule = z.infer<typeof Rule>
-
-  export const Ruleset = Rule.array().meta({
-    ref: "PermissionRuleset",
-  })
-  export type Ruleset = z.infer<typeof Ruleset>
-
-  export function fromConfig(permission: Config.Permission) {
-    const ruleset: Ruleset = []
-    for (const [key, value] of Object.entries(permission)) {
-      if (typeof value === "string") {
-        ruleset.push({
-          permission: key,
-          action: value,
-          pattern: "*",
-        })
-        continue
-      }
-      ruleset.push(
-        ...Object.entries(value).map(([pattern, action]) => ({ permission: key, pattern: expand(pattern), action })),
-      )
-    }
-    return ruleset
-  }
-
-  export function merge(...rulesets: Ruleset[]): Ruleset {
-    return rulesets.flat()
-  }
-
-  export const Request = z
-    .object({
-      id: PermissionID.zod,
-      sessionID: SessionID.zod,
-      permission: z.string(),
-      patterns: z.string().array(),
-      metadata: z.record(z.string(), z.any()),
-      always: z.string().array(),
-      tool: z
-        .object({
-          messageID: MessageID.zod,
-          callID: z.string(),
-        })
-        .optional(),
-    })
-    .meta({
-      ref: "PermissionRequest",
-    })
-
-  export type Request = z.infer<typeof Request>
-
-  export const Reply = z.enum(["once", "always", "reject"])
-  export type Reply = z.infer<typeof Reply>
-
-  export const Approval = z.object({
-    projectID: ProjectID.zod,
-    patterns: z.string().array(),
-  })
-
-  export const Event = {
-    Asked: BusEvent.define("permission.asked", Request),
-    Replied: BusEvent.define(
-      "permission.replied",
-      z.object({
-        sessionID: SessionID.zod,
-        requestID: PermissionID.zod,
-        reply: Reply,
-      }),
-    ),
-  }
-
-  interface PendingEntry {
-    info: Request
-    resolve: () => void
-    reject: (e: any) => void
-  }
-
-  const state = Instance.state(() => {
-    const projectID = Instance.project.id
-    const row = Database.use((db) =>
-      db.select().from(PermissionTable).where(eq(PermissionTable.project_id, projectID)).get(),
-    )
-    const stored = row?.data ?? ([] as Ruleset)
-
-    return {
-      pending: new Map<PermissionID, PendingEntry>(),
-      approved: stored,
-    }
-  })
-
-  export const ask = fn(
-    Request.partial({ id: true }).extend({
-      ruleset: Ruleset,
-    }),
-    async (input) => {
-      const s = await state()
-      const { ruleset, ...request } = input
-      for (const pattern of request.patterns ?? []) {
-        const rule = evaluate(request.permission, pattern, ruleset, s.approved)
-        log.info("evaluated", { permission: request.permission, pattern, action: rule })
-        if (rule.action === "deny")
-          throw new DeniedError(ruleset.filter((r) => Wildcard.match(request.permission, r.permission)))
-        if (rule.action === "ask") {
-          const id = input.id ?? PermissionID.ascending()
-          return new Promise<void>((resolve, reject) => {
-            const info: Request = {
-              id,
-              ...request,
-            }
-            s.pending.set(id, {
-              info,
-              resolve,
-              reject,
-            })
-            Bus.publish(Event.Asked, info)
-          })
-        }
-        if (rule.action === "allow") continue
-      }
-    },
-  )
-
-  export const reply = fn(
-    z.object({
-      requestID: PermissionID.zod,
-      reply: Reply,
-      message: z.string().optional(),
-    }),
-    async (input) => {
-      const s = await state()
-      const existing = s.pending.get(input.requestID)
-      if (!existing) return
-      s.pending.delete(input.requestID)
-      Bus.publish(Event.Replied, {
-        sessionID: existing.info.sessionID,
-        requestID: existing.info.id,
-        reply: input.reply,
-      })
-      if (input.reply === "reject") {
-        existing.reject(input.message ? new CorrectedError(input.message) : new RejectedError())
-        // Reject all other pending permissions for this session
-        const sessionID = existing.info.sessionID
-        for (const [id, pending] of s.pending) {
-          if (pending.info.sessionID === sessionID) {
-            s.pending.delete(id)
-            Bus.publish(Event.Replied, {
-              sessionID: pending.info.sessionID,
-              requestID: pending.info.id,
-              reply: "reject",
-            })
-            pending.reject(new RejectedError())
-          }
-        }
-        return
-      }
-      if (input.reply === "once") {
-        existing.resolve()
-        return
-      }
-      if (input.reply === "always") {
-        for (const pattern of existing.info.always) {
-          s.approved.push({
-            permission: existing.info.permission,
-            pattern,
-            action: "allow",
-          })
-        }
-
-        existing.resolve()
-
-        const sessionID = existing.info.sessionID
-        for (const [id, pending] of s.pending) {
-          if (pending.info.sessionID !== sessionID) continue
-          const ok = pending.info.patterns.every(
-            (pattern) => evaluate(pending.info.permission, pattern, s.approved).action === "allow",
-          )
-          if (!ok) continue
-          s.pending.delete(id)
-          Bus.publish(Event.Replied, {
-            sessionID: pending.info.sessionID,
-            requestID: pending.info.id,
-            reply: "always",
-          })
-          pending.resolve()
-        }
-
-        // TODO: we don't save the permission ruleset to disk yet until there's
-        // UI to manage it
-        // db().insert(PermissionTable).values({ projectID: Instance.project.id, data: s.approved })
-        //   .onConflictDoUpdate({ target: PermissionTable.projectID, set: { data: s.approved } }).run()
-        return
-      }
-    },
-  )
-
-  export function evaluate(permission: string, pattern: string, ...rulesets: Ruleset[]): Rule {
-    const merged = merge(...rulesets)
-    log.info("evaluate", { permission, pattern, ruleset: merged })
-    const match = merged.findLast(
-      (rule) => Wildcard.match(permission, rule.permission) && Wildcard.match(pattern, rule.pattern),
-    )
-    return match ?? { action: "ask", permission, pattern: "*" }
-  }
-
-  const EDIT_TOOLS = ["edit", "write", "patch", "multiedit"]
-
-  export function disabled(tools: string[], ruleset: Ruleset): Set<string> {
-    const result = new Set<string>()
-    for (const tool of tools) {
-      const permission = EDIT_TOOLS.includes(tool) ? "edit" : tool
-
-      const rule = ruleset.findLast((r) => Wildcard.match(permission, r.permission))
-      if (!rule) continue
-      if (rule.pattern === "*" && rule.action === "deny") result.add(tool)
-    }
-    return result
-  }
-
-  /** User rejected without message - halts execution */
-  export class RejectedError extends Error {
-    constructor() {
-      super(`The user rejected permission to use this specific tool call.`)
-    }
-  }
-
-  /** User rejected with message - continues with guidance */
-  export class CorrectedError extends Error {
-    constructor(message: string) {
-      super(`The user rejected permission to use this specific tool call with the following feedback: ${message}`)
-    }
-  }
-
-  /** Auto-rejected by config rule - halts execution */
-  export class DeniedError extends Error {
-    constructor(public readonly ruleset: Ruleset) {
-      super(
-        `The user has specified a rule which prevents you from using this specific tool call. Here are some of the relevant rules ${JSON.stringify(ruleset)}`,
-      )
-    }
-  }
-
-  export async function list() {
-    const s = await state()
-    return Array.from(s.pending.values(), (x) => x.info)
-  }
-}
--- a/packages/opencode/src/permission/schema.ts
+++ b/packages/opencode/src/permission/schema.ts
@@ -2,16 +2,16 @@ import { Schema } from "effect"
 import z from "zod"

 import { Identifier } from "@/id/id"
-import { withStatics } from "@/util/schema"
+import { Newtype } from "@/util/schema"

-const permissionIdSchema = Schema.String.pipe(Schema.brand("PermissionID"))
+export class PermissionID extends Newtype<PermissionID>()("PermissionID", Schema.String) {
+  static make(id: string): PermissionID {
+    return this.makeUnsafe(id)
+  }

-export type PermissionID = typeof permissionIdSchema.Type
+  static ascending(id?: string): PermissionID {
+    return this.makeUnsafe(Identifier.ascending("permission", id))
+  }

-export const PermissionID = permissionIdSchema.pipe(
-  withStatics((schema: typeof permissionIdSchema) => ({
-    make: (id: string) => schema.makeUnsafe(id),
-    ascending: (id?: string) => schema.makeUnsafe(Identifier.ascending("permission", id)),
-    zod: Identifier.schema("permission").pipe(z.custom<PermissionID>()),
-  })),
-)
+  static readonly zod = Identifier.schema("permission") as unknown as z.ZodType<PermissionID>
+}
--- a/packages/opencode/src/plugin/copilot.ts
+++ b/packages/opencode/src/plugin/copilot.ts
@@ -185,12 +185,10 @@ export async function CopilotAuthPlugin(input: PluginInput): Promise<Hooks> {
            const deploymentType = inputs.deploymentType || "github.com"

            let domain = "github.com"
-            let actualProvider = "github-copilot"

            if (deploymentType === "enterprise") {
              const enterpriseUrl = inputs.enterpriseUrl
              domain = normalizeDomain(enterpriseUrl!)
-              actualProvider = "github-copilot-enterprise"
            }

            const urls = getUrls(domain)
@@ -262,8 +260,7 @@ export async function CopilotAuthPlugin(input: PluginInput): Promise<Hooks> {
                      expires: 0,
                    }

-                    if (actualProvider === "github-copilot-enterprise") {
-                      result.provider = "github-copilot-enterprise"
+                    if (deploymentType === "enterprise") {
                      result.enterpriseUrl = domain
                    }

@@ -309,6 +306,24 @@ export async function CopilotAuthPlugin(input: PluginInput): Promise<Hooks> {
        output.headers["anthropic-beta"] = "interleaved-thinking-2025-05-14"
      }

+      const parts = await sdk.session
+        .message({
+          path: {
+            id: incoming.message.sessionID,
+            messageID: incoming.message.id,
+          },
+          query: {
+            directory: input.directory,
+          },
+          throwOnError: true,
+        })
+        .catch(() => undefined)
+
+      if (parts?.data.parts?.some((part) => part.type === "compaction")) {
+        output.headers["x-initiator"] = "agent"
+        return
+      }
+
      const session = await sdk.session
        .get({
          path: {
--- a/packages/opencode/src/project/bootstrap.ts
+++ b/packages/opencode/src/project/bootstrap.ts
@@ -1,33 +1,23 @@
 import { Plugin } from "../plugin"
-import { Format } from "../format"
 import { LSP } from "../lsp"
-import { FileWatcher } from "../file/watcher"
 import { File } from "../file"
 import { Project } from "./project"
 import { Bus } from "../bus"
 import { Command } from "../command"
 import { Instance } from "./instance"
-import { Vcs } from "./vcs"
 import { Log } from "@/util/log"
 import { ShareNext } from "@/share/share-next"
-import { Snapshot } from "../snapshot"
-import { Truncate } from "../tool/truncation"

 export async function InstanceBootstrap() {
  Log.Default.info("bootstrapping", { directory: Instance.directory })
  await Plugin.init()
  ShareNext.init()
-  Format.init()
  await LSP.init()
-  FileWatcher.init()
  File.init()
-  Vcs.init()
-  Snapshot.init()
-  Truncate.init()

  Bus.subscribe(Command.Event.Executed, async (payload) => {
    if (payload.properties.name === Command.Default.INIT) {
-      await Project.setInitialized(Instance.project.id)
+      Project.setInitialized(Instance.project.id)
    }
  })
 }
--- a/packages/opencode/src/project/instance.ts
+++ b/packages/opencode/src/project/instance.ts
@@ -1,154 +1,185 @@
-import { Effect } from "effect"
-import { Log } from "@/util/log"
-import { Context } from "../util/context"
-import { Project } from "./project"
-import { State } from "./state"
-import { iife } from "@/util/iife"
-import { GlobalBus } from "@/bus/global"
-import { Filesystem } from "@/util/filesystem"
-import { InstanceState } from "@/util/instance-state"
+import { GlobalBus } from "@/bus/global";
+import { disposeInstance } from "@/effect/instance-registry";
+import { Filesystem } from "@/util/filesystem";
+import { iife } from "@/util/iife";
+import { Log } from "@/util/log";
+import { Context } from "../util/context";
+import { Project } from "./project";
+import { State } from "./state";

 interface Context {
-  directory: string
-  worktree: string
-  project: Project.Info
+	directory: string;
+	worktree: string;
+	project: Project.Info;
 }
-const context = Context.create<Context>("instance")
-const cache = new Map<string, Promise<Context>>()
+const context = Context.create<Context>("instance");
+const cache = new Map<string, Promise<Context>>();

 const disposal = {
-  all: undefined as Promise<void> | undefined,
-}
+	all: undefined as Promise<void> | undefined,
+};

 function emit(directory: string) {
-  GlobalBus.emit("event", {
-    directory,
-    payload: {
-      type: "server.instance.disposed",
-      properties: {
-        directory,
-      },
-    },
-  })
+	GlobalBus.emit("event", {
+		directory,
+		payload: {
+			type: "server.instance.disposed",
+			properties: {
+				directory,
+			},
+		},
+	});
 }

-function boot(input: { directory: string; init?: () => Promise<any>; project?: Project.Info; worktree?: string }) {
-  return iife(async () => {
-    const ctx =
-      input.project && input.worktree
-        ? {
-            directory: input.directory,
-            worktree: input.worktree,
-            project: input.project,
-          }
-        : await Project.fromDirectory(input.directory).then(({ project, sandbox }) => ({
-            directory: input.directory,
-            worktree: sandbox,
-            project,
-          }))
-    await context.provide(ctx, async () => {
-      await input.init?.()
-    })
-    return ctx
-  })
+function boot(input: {
+	directory: string;
+	init?: () => Promise<any>;
+	project?: Project.Info;
+	worktree?: string;
+}) {
+	return iife(async () => {
+		const ctx =
+			input.project && input.worktree
+				? {
+						directory: input.directory,
+						worktree: input.worktree,
+						project: input.project,
+					}
+				: await Project.fromDirectory(input.directory).then(
+						({ project, sandbox }) => ({
+							directory: input.directory,
+							worktree: sandbox,
+							project,
+						}),
+					);
+		await context.provide(ctx, async () => {
+			await input.init?.();
+		});
+		return ctx;
+	});
 }

 function track(directory: string, next: Promise<Context>) {
-  const task = next.catch((error) => {
-    if (cache.get(directory) === task) cache.delete(directory)
-    throw error
-  })
-  cache.set(directory, task)
-  return task
+	const task = next.catch((error) => {
+		if (cache.get(directory) === task) cache.delete(directory);
+		throw error;
+	});
+	cache.set(directory, task);
+	return task;
 }

 export const Instance = {
-  async provide<R>(input: { directory: string; init?: () => Promise<any>; fn: () => R }): Promise<R> {
-    const directory = Filesystem.resolve(input.directory)
-    let existing = cache.get(directory)
-    if (!existing) {
-      Log.Default.info("creating instance", { directory })
-      existing = track(
-        directory,
-        boot({
-          directory,
-          init: input.init,
-        }),
-      )
-    }
-    const ctx = await existing
-    return context.provide(ctx, async () => {
-      return input.fn()
-    })
-  },
-  get directory() {
-    return context.use().directory
-  },
-  get worktree() {
-    return context.use().worktree
-  },
-  get project() {
-    return context.use().project
-  },
-  /**
-   * Check if a path is within the project boundary.
-   * Returns true if path is inside Instance.directory OR Instance.worktree.
-   * Paths within the worktree but outside the working directory should not trigger external_directory permission.
-   */
-  containsPath(filepath: string) {
-    if (Filesystem.contains(Instance.directory, filepath)) return true
-    // Non-git projects set worktree to "/" which would match ANY absolute path.
-    // Skip worktree check in this case to preserve external_directory permissions.
-    if (Instance.worktree === "/") return false
-    return Filesystem.contains(Instance.worktree, filepath)
-  },
-  state<S>(init: () => S, dispose?: (state: Awaited<S>) => Promise<void>): () => S {
-    return State.create(() => Instance.directory, init, dispose)
-  },
-  async reload(input: { directory: string; init?: () => Promise<any>; project?: Project.Info; worktree?: string }) {
-    const directory = Filesystem.resolve(input.directory)
-    Log.Default.info("reloading instance", { directory })
-    await Promise.all([State.dispose(directory), Effect.runPromise(InstanceState.dispose(directory))])
-    cache.delete(directory)
-    const next = track(directory, boot({ ...input, directory }))
-    emit(directory)
-    return await next
-  },
-  async dispose() {
-    Log.Default.info("disposing instance", { directory: Instance.directory })
-    await Promise.all([State.dispose(Instance.directory), Effect.runPromise(InstanceState.dispose(Instance.directory))])
-    cache.delete(Instance.directory)
-    emit(Instance.directory)
-  },
-  async disposeAll() {
-    if (disposal.all) return disposal.all
+	async provide<R>(input: {
+		directory: string;
+		init?: () => Promise<any>;
+		fn: () => R;
+	}): Promise<R> {
+		const directory = Filesystem.resolve(input.directory);
+		let existing = cache.get(directory);
+		if (!existing) {
+			Log.Default.info("creating instance", { directory });
+			existing = track(
+				directory,
+				boot({
+					directory,
+					init: input.init,
+				}),
+			);
+		}
+		const ctx = await existing;
+		return context.provide(ctx, async () => {
+			return input.fn();
+		});
+	},
+	get current() {
+		return context.use();
+	},
+	get directory() {
+		return context.use().directory;
+	},
+	get worktree() {
+		return context.use().worktree;
+	},
+	get project() {
+		return context.use().project;
+	},
+	/**
+	 * Check if a path is within the project boundary.
+	 * Returns true if path is inside Instance.directory OR Instance.worktree.
+	 * Paths within the worktree but outside the working directory should not trigger external_directory permission.
+	 */
+	containsPath(filepath: string) {
+		if (Filesystem.contains(Instance.directory, filepath)) return true;
+		// Non-git projects set worktree to "/" which would match ANY absolute path.
+		// Skip worktree check in this case to preserve external_directory permissions.
+		if (Instance.worktree === "/") return false;
+		return Filesystem.contains(Instance.worktree, filepath);
+	},
+	/**
+	 * Captures the current instance ALS context and returns a wrapper that
+	 * restores it when called. Use this for callbacks that fire outside the
+	 * instance async context (native addons, event emitters, timers, etc.).
+	 */
+	bind<F extends (...args: any[]) => any>(fn: F): F {
+		const ctx = context.use();
+		return ((...args: any[]) => context.provide(ctx, () => fn(...args))) as F;
+	},
+	state<S>(
+		init: () => S,
+		dispose?: (state: Awaited<S>) => Promise<void>,
+	): () => S {
+		return State.create(() => Instance.directory, init, dispose);
+	},
+	async reload(input: {
+		directory: string;
+		init?: () => Promise<any>;
+		project?: Project.Info;
+		worktree?: string;
+	}) {
+		const directory = Filesystem.resolve(input.directory);
+		Log.Default.info("reloading instance", { directory });
+		await Promise.all([State.dispose(directory), disposeInstance(directory)]);
+		cache.delete(directory);
+		const next = track(directory, boot({ ...input, directory }));
+		emit(directory);
+		return await next;
+	},
+	async dispose() {
+		const directory = Instance.directory;
+		Log.Default.info("disposing instance", { directory });
+		await Promise.all([State.dispose(directory), disposeInstance(directory)]);
+		cache.delete(directory);
+		emit(directory);
+	},
+	async disposeAll() {
+		if (disposal.all) return disposal.all;

-    disposal.all = iife(async () => {
-      Log.Default.info("disposing all instances")
-      const entries = [...cache.entries()]
-      for (const [key, value] of entries) {
-        if (cache.get(key) !== value) continue
+		disposal.all = iife(async () => {
+			Log.Default.info("disposing all instances");
+			const entries = [...cache.entries()];
+			for (const [key, value] of entries) {
+				if (cache.get(key) !== value) continue;

-        const ctx = await value.catch((error) => {
-          Log.Default.warn("instance dispose failed", { key, error })
-          return undefined
-        })
+				const ctx = await value.catch((error) => {
+					Log.Default.warn("instance dispose failed", { key, error });
+					return undefined;
+				});

-        if (!ctx) {
-          if (cache.get(key) === value) cache.delete(key)
-          continue
-        }
+				if (!ctx) {
+					if (cache.get(key) === value) cache.delete(key);
+					continue;
+				}

-        if (cache.get(key) !== value) continue
+				if (cache.get(key) !== value) continue;

-        await context.provide(ctx, async () => {
-          await Instance.dispose()
-        })
-      }
-    }).finally(() => {
-      disposal.all = undefined
-    })
+				await context.provide(ctx, async () => {
+					await Instance.dispose();
+				});
+			}
+		}).finally(() => {
+			disposal.all = undefined;
+		});

-    return disposal.all
-  },
-}
+		return disposal.all;
+	},
+};
--- a/packages/opencode/src/project/project.ts
+++ b/packages/opencode/src/project/project.ts
@@ -147,7 +147,7 @@ export namespace Project {

        // generate id from root commit
        if (!id) {
-          const roots = await git(["rev-list", "--max-parents=0", "--all"], {
+          const roots = await git(["rev-list", "--max-parents=0", "HEAD"], {
            cwd: sandbox,
          })
            .then(async (result) =>
@@ -170,7 +170,8 @@ export namespace Project {

          id = roots[0] ? ProjectID.make(roots[0]) : undefined
          if (id) {
-            await Filesystem.write(path.join(dotgit, "opencode"), id).catch(() => undefined)
+            // Write to common dir so the cache is shared across worktrees.
+            await Filesystem.write(path.join(worktree, ".git", "opencode"), id).catch(() => undefined)
          }
        }

--- a/packages/opencode/src/project/vcs.ts
+++ b/packages/opencode/src/project/vcs.ts
@@ -1,15 +1,16 @@
-import { BusEvent } from "@/bus/bus-event"
+import { Effect, Layer, ServiceMap } from "effect"
 import { Bus } from "@/bus"
-import path from "path"
-import z from "zod"
-import { Log } from "@/util/log"
-import { Instance } from "./instance"
+import { BusEvent } from "@/bus/bus-event"
+import { InstanceContext } from "@/effect/instance-context"
 import { FileWatcher } from "@/file/watcher"
+import { Log } from "@/util/log"
 import { git } from "@/util/git"
-
-const log = Log.create({ service: "vcs" })
+import { Instance } from "./instance"
+import z from "zod"

 export namespace Vcs {
+  const log = Log.create({ service: "vcs" })
+
  export const Event = {
    BranchUpdated: BusEvent.define(
      "vcs.branch.updated",
@@ -28,49 +29,52 @@ export namespace Vcs {
    })
  export type Info = z.infer<typeof Info>

-  async function currentBranch() {
-    const result = await git(["rev-parse", "--abbrev-ref", "HEAD"], {
-      cwd: Instance.worktree,
-    })
-    if (result.exitCode !== 0) return
-    const text = result.text().trim()
-    if (!text) return
-    return text
+  export interface Interface {
+    readonly branch: () => Effect.Effect<string | undefined>
  }

-  const state = Instance.state(
-    async () => {
-      if (Instance.project.vcs !== "git") {
-        return { branch: async () => undefined, unsubscribe: undefined }
-      }
-      let current = await currentBranch()
-      log.info("initialized", { branch: current })
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/Vcs") {}

-      const unsubscribe = Bus.subscribe(FileWatcher.Event.Updated, async (evt) => {
-        if (evt.properties.file.endsWith("HEAD")) return
-        const next = await currentBranch()
-        if (next !== current) {
-          log.info("branch changed", { from: current, to: next })
-          current = next
-          Bus.publish(Event.BranchUpdated, { branch: next })
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const instance = yield* InstanceContext
+      let current: string | undefined
+
+      if (instance.project.vcs === "git") {
+        const currentBranch = async () => {
+          const result = await git(["rev-parse", "--abbrev-ref", "HEAD"], {
+            cwd: instance.project.worktree,
+          })
+          if (result.exitCode !== 0) return undefined
+          const text = result.text().trim()
+          return text || undefined
        }
-      })

-      return {
-        branch: async () => current,
-        unsubscribe,
+        current = yield* Effect.promise(() => currentBranch())
+        log.info("initialized", { branch: current })
+
+        const unsubscribe = Bus.subscribe(
+          FileWatcher.Event.Updated,
+          Instance.bind(async (evt) => {
+            if (!evt.properties.file.endsWith("HEAD")) return
+            const next = await currentBranch()
+            if (next !== current) {
+              log.info("branch changed", { from: current, to: next })
+              current = next
+              Bus.publish(Event.BranchUpdated, { branch: next })
+            }
+          }),
+        )
+
+        yield* Effect.addFinalizer(() => Effect.sync(unsubscribe))
      }
-    },
-    async (state) => {
-      state.unsubscribe?.()
-    },
+
+      return Service.of({
+        branch: Effect.fn("Vcs.branch")(function* () {
+          return current
+        }),
+      })
+    }),
  )
-
-  export async function init() {
-    return state()
-  }
-
-  export async function branch() {
-    return await state().then((s) => s.branch())
-  }
 }
--- a/packages/opencode/src/provider/auth-effect.ts
+++ b/packages/opencode/src/provider/auth-effect.ts
@@ -0,0 +1,134 @@
+import type { AuthOuathResult } from "@opencode-ai/plugin"
+import { NamedError } from "@opencode-ai/util/error"
+import { Effect, Layer, Record, ServiceMap, Struct } from "effect"
+import { filter, fromEntries, map, pipe } from "remeda"
+import z from "zod"
+import * as Auth from "@/auth/effect"
+import { ProviderID } from "./schema"
+
+export namespace ProviderAuthEffect {
+  export const Method = z
+    .object({
+      type: z.union([z.literal("oauth"), z.literal("api")]),
+      label: z.string(),
+    })
+    .meta({
+      ref: "ProviderAuthMethod",
+    })
+  export type Method = z.infer<typeof Method>
+
+  export const Authorization = z
+    .object({
+      url: z.string(),
+      method: z.union([z.literal("auto"), z.literal("code")]),
+      instructions: z.string(),
+    })
+    .meta({
+      ref: "ProviderAuthAuthorization",
+    })
+  export type Authorization = z.infer<typeof Authorization>
+
+  export const OauthMissing = NamedError.create(
+    "ProviderAuthOauthMissing",
+    z.object({
+      providerID: ProviderID.zod,
+    }),
+  )
+
+  export const OauthCodeMissing = NamedError.create(
+    "ProviderAuthOauthCodeMissing",
+    z.object({
+      providerID: ProviderID.zod,
+    }),
+  )
+
+  export const OauthCallbackFailed = NamedError.create("ProviderAuthOauthCallbackFailed", z.object({}))
+
+  export type Error =
+    | Auth.AuthEffect.AuthServiceError
+    | InstanceType<typeof OauthMissing>
+    | InstanceType<typeof OauthCodeMissing>
+    | InstanceType<typeof OauthCallbackFailed>
+
+  export interface Interface {
+    readonly methods: () => Effect.Effect<Record<string, Method[]>>
+    readonly authorize: (input: { providerID: ProviderID; method: number }) => Effect.Effect<Authorization | undefined>
+    readonly callback: (input: { providerID: ProviderID; method: number; code?: string }) => Effect.Effect<void, Error>
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/ProviderAuth") {}
+
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const auth = yield* Auth.AuthEffect.Service
+      const hooks = yield* Effect.promise(async () => {
+        const mod = await import("../plugin")
+        return pipe(
+          await mod.Plugin.list(),
+          filter((x) => x.auth?.provider !== undefined),
+          map((x) => [x.auth!.provider, x.auth!] as const),
+          fromEntries(),
+        )
+      })
+      const pending = new Map<ProviderID, AuthOuathResult>()
+
+      const methods = Effect.fn("ProviderAuth.methods")(function* () {
+        return Record.map(hooks, (item) => item.methods.map((method): Method => Struct.pick(method, ["type", "label"])))
+      })
+
+      const authorize = Effect.fn("ProviderAuth.authorize")(function* (input: {
+        providerID: ProviderID
+        method: number
+      }) {
+        const method = hooks[input.providerID].methods[input.method]
+        if (method.type !== "oauth") return
+        const result = yield* Effect.promise(() => method.authorize())
+        pending.set(input.providerID, result)
+        return {
+          url: result.url,
+          method: result.method,
+          instructions: result.instructions,
+        }
+      })
+
+      const callback = Effect.fn("ProviderAuth.callback")(function* (input: {
+        providerID: ProviderID
+        method: number
+        code?: string
+      }) {
+        const match = pending.get(input.providerID)
+        if (!match) return yield* Effect.fail(new OauthMissing({ providerID: input.providerID }))
+        if (match.method === "code" && !input.code) {
+          return yield* Effect.fail(new OauthCodeMissing({ providerID: input.providerID }))
+        }
+
+        const result = yield* Effect.promise(() =>
+          match.method === "code" ? match.callback(input.code!) : match.callback(),
+        )
+        if (!result || result.type !== "success") return yield* Effect.fail(new OauthCallbackFailed({}))
+
+        if ("key" in result) {
+          yield* auth.set(input.providerID, {
+            type: "api",
+            key: result.key,
+          })
+        }
+
+        if ("refresh" in result) {
+          yield* auth.set(input.providerID, {
+            type: "oauth",
+            access: result.access,
+            refresh: result.refresh,
+            expires: result.expires,
+            ...(result.accountId ? { accountId: result.accountId } : {}),
+          })
+        }
+      })
+
+      return Service.of({ methods, authorize, callback })
+    }),
+  )
+
+  export const defaultLayer = layer.pipe(Layer.provide(Auth.AuthEffect.defaultLayer))
+}
--- a/packages/opencode/src/provider/auth-service.ts
+++ b/packages/opencode/src/provider/auth-service.ts
@@ -1,169 +0,0 @@
-import { Effect, Layer, Record, ServiceMap, Struct } from "effect"
-import { Instance } from "@/project/instance"
-import { Plugin } from "../plugin"
-import { filter, fromEntries, map, pipe } from "remeda"
-import type { AuthOuathResult } from "@opencode-ai/plugin"
-import { NamedError } from "@opencode-ai/util/error"
-import * as Auth from "@/auth/service"
-import { InstanceState } from "@/util/instance-state"
-import { ProviderID } from "./schema"
-import z from "zod"
-
-export const Method = z
-  .object({
-    type: z.union([z.literal("oauth"), z.literal("api")]),
-    label: z.string(),
-  })
-  .meta({
-    ref: "ProviderAuthMethod",
-  })
-export type Method = z.infer<typeof Method>
-
-export const Authorization = z
-  .object({
-    url: z.string(),
-    method: z.union([z.literal("auto"), z.literal("code")]),
-    instructions: z.string(),
-  })
-  .meta({
-    ref: "ProviderAuthAuthorization",
-  })
-export type Authorization = z.infer<typeof Authorization>
-
-export const OauthMissing = NamedError.create(
-  "ProviderAuthOauthMissing",
-  z.object({
-    providerID: ProviderID.zod,
-  }),
-)
-
-export const OauthCodeMissing = NamedError.create(
-  "ProviderAuthOauthCodeMissing",
-  z.object({
-    providerID: ProviderID.zod,
-  }),
-)
-
-export const OauthCallbackFailed = NamedError.create("ProviderAuthOauthCallbackFailed", z.object({}))
-
-export type ProviderAuthError =
-  | Auth.AuthServiceError
-  | InstanceType<typeof OauthMissing>
-  | InstanceType<typeof OauthCodeMissing>
-  | InstanceType<typeof OauthCallbackFailed>
-
-export namespace ProviderAuthService {
-  export interface Service {
-    /** Get available auth methods for each provider (e.g. OAuth, API key). */
-    readonly methods: () => Effect.Effect<Record<string, Method[]>>
-
-    /** Start an OAuth authorization flow for a provider. Returns the URL to redirect to. */
-    readonly authorize: (input: { providerID: ProviderID; method: number }) => Effect.Effect<Authorization | undefined>
-
-    /** Complete an OAuth flow after the user has authorized. Exchanges the code/callback for credentials. */
-    readonly callback: (input: {
-      providerID: ProviderID
-      method: number
-      code?: string
-    }) => Effect.Effect<void, ProviderAuthError>
-
-    /** Set an API key directly for a provider (no OAuth flow). */
-    readonly api: (input: { providerID: ProviderID; key: string }) => Effect.Effect<void, Auth.AuthServiceError>
-  }
-}
-
-export class ProviderAuthService extends ServiceMap.Service<ProviderAuthService, ProviderAuthService.Service>()(
-  "@opencode/ProviderAuth",
-) {
-  static readonly layer = Layer.effect(
-    ProviderAuthService,
-    Effect.gen(function* () {
-      const auth = yield* Auth.AuthService
-      const state = yield* InstanceState.make({
-        lookup: () =>
-          Effect.promise(async () => {
-            const methods = pipe(
-              await Plugin.list(),
-              filter((x) => x.auth?.provider !== undefined),
-              map((x) => [x.auth!.provider, x.auth!] as const),
-              fromEntries(),
-            )
-            return { methods, pending: new Map<ProviderID, AuthOuathResult>() }
-          }),
-      })
-
-      const methods = Effect.fn("ProviderAuthService.methods")(function* () {
-        const x = yield* InstanceState.get(state)
-        return Record.map(x.methods, (y) => y.methods.map((z): Method => Struct.pick(z, ["type", "label"])))
-      })
-
-      const authorize = Effect.fn("ProviderAuthService.authorize")(function* (input: {
-        providerID: ProviderID
-        method: number
-      }) {
-        const s = yield* InstanceState.get(state)
-        const method = s.methods[input.providerID].methods[input.method]
-        if (method.type !== "oauth") return
-        const result = yield* Effect.promise(() => method.authorize())
-        s.pending.set(input.providerID, result)
-        return {
-          url: result.url,
-          method: result.method,
-          instructions: result.instructions,
-        }
-      })
-
-      const callback = Effect.fn("ProviderAuthService.callback")(function* (input: {
-        providerID: ProviderID
-        method: number
-        code?: string
-      }) {
-        const s = yield* InstanceState.get(state)
-        const match = s.pending.get(input.providerID)
-        if (!match) return yield* Effect.fail(new OauthMissing({ providerID: input.providerID }))
-
-        if (match.method === "code" && !input.code)
-          return yield* Effect.fail(new OauthCodeMissing({ providerID: input.providerID }))
-
-        const result = yield* Effect.promise(() =>
-          match.method === "code" ? match.callback(input.code!) : match.callback(),
-        )
-
-        if (!result || result.type !== "success") return yield* Effect.fail(new OauthCallbackFailed({}))
-
-        if ("key" in result) {
-          yield* auth.set(input.providerID, {
-            type: "api",
-            key: result.key,
-          })
-        }
-
-        if ("refresh" in result) {
-          yield* auth.set(input.providerID, {
-            type: "oauth",
-            access: result.access,
-            refresh: result.refresh,
-            expires: result.expires,
-            ...(result.accountId ? { accountId: result.accountId } : {}),
-          })
-        }
-      })
-
-      const api = Effect.fn("ProviderAuthService.api")(function* (input: { providerID: ProviderID; key: string }) {
-        yield* auth.set(input.providerID, {
-          type: "api",
-          key: input.key,
-        })
-      })
-
-      return ProviderAuthService.of({
-        methods,
-        authorize,
-        callback,
-        api,
-      })
-    }),
-  )
-
-  static readonly defaultLayer = ProviderAuthService.layer.pipe(Layer.provide(Auth.AuthService.defaultLayer))
-}
--- a/packages/opencode/src/provider/auth.ts
+++ b/packages/opencode/src/provider/auth.ts
@@ -1,25 +1,16 @@
-import { Effect, ManagedRuntime } from "effect"
 import z from "zod"

+import { runPromiseInstance } from "@/effect/runtime"
 import { fn } from "@/util/fn"
-import * as S from "./auth-service"
+import { ProviderAuthEffect as S } from "./auth-effect"
 import { ProviderID } from "./schema"

-// Separate runtime: ProviderAuthService can't join the shared runtime because
-// runtime.ts → auth-service.ts → provider/auth.ts creates a circular import.
-// AuthService is stateless file I/O so the duplicate instance is harmless.
-const rt = ManagedRuntime.make(S.ProviderAuthService.defaultLayer)
-
-function runPromise<A>(f: (service: S.ProviderAuthService.Service) => Effect.Effect<A, S.ProviderAuthError>) {
-  return rt.runPromise(S.ProviderAuthService.use(f))
-}
-
 export namespace ProviderAuth {
  export const Method = S.Method
  export type Method = S.Method

  export async function methods() {
-    return runPromise((service) => service.methods())
+    return runPromiseInstance(S.Service.use((service) => service.methods()))
  }

  export const Authorization = S.Authorization
@@ -30,7 +21,8 @@ export namespace ProviderAuth {
      providerID: ProviderID.zod,
      method: z.number(),
    }),
-    async (input): Promise<Authorization | undefined> => runPromise((service) => service.authorize(input)),
+    async (input): Promise<Authorization | undefined> =>
+      runPromiseInstance(S.Service.use((service) => service.authorize(input))),
  )

  export const callback = fn(
@@ -39,15 +31,7 @@ export namespace ProviderAuth {
      method: z.number(),
      code: z.string().optional(),
    }),
-    async (input) => runPromise((service) => service.callback(input)),
-  )
-
-  export const api = fn(
-    z.object({
-      providerID: ProviderID.zod,
-      key: z.string(),
-    }),
-    async (input) => runPromise((service) => service.api(input)),
+    async (input) => runPromiseInstance(S.Service.use((service) => service.callback(input))),
  )

  export import OauthMissing = S.OauthMissing
--- a/packages/opencode/src/provider/error.ts
+++ b/packages/opencode/src/provider/error.ts
@@ -167,7 +167,8 @@ export namespace ProviderError {

  export function parseAPICallError(input: { providerID: ProviderID; error: APICallError }): ParsedAPICallError {
    const m = message(input.providerID, input.error)
-    if (isOverflow(m) || input.error.statusCode === 413) {
+    const body = json(input.error.responseBody)
+    if (isOverflow(m) || input.error.statusCode === 413 || body?.error?.code === "context_length_exceeded") {
      return {
        type: "context_overflow",
        message: m,
--- a/packages/opencode/src/provider/provider.ts
+++ b/packages/opencode/src/provider/provider.ts
@@ -47,7 +47,7 @@ import { ProviderTransform } from "./transform"
 import { Installation } from "../installation"
 import { ModelID, ProviderID } from "./schema"

-const DEFAULT_CHUNK_TIMEOUT = 120_000
+const DEFAULT_CHUNK_TIMEOUT = 300_000

 export namespace Provider {
  const log = Log.create({ service: "provider" })
@@ -197,16 +197,6 @@ export namespace Provider {
        options: {},
      }
    },
-    "github-copilot-enterprise": async () => {
-      return {
-        autoload: false,
-        async getModel(sdk: any, modelID: string, _options?: Record<string, any>) {
-          if (useLanguageModel(sdk)) return sdk.languageModel(modelID)
-          return shouldUseCopilotResponsesApi(modelID) ? sdk.responses(modelID) : sdk.chat(modelID)
-        },
-        options: {},
-      }
-    },
    azure: async (provider) => {
      const resource = iife(() => {
        const name = provider.options?.resourceName
@@ -863,20 +853,6 @@ export namespace Provider {

    const configProviders = Object.entries(config.provider ?? {})

-    // Add GitHub Copilot Enterprise provider that inherits from GitHub Copilot
-    if (database["github-copilot"]) {
-      const githubCopilot = database["github-copilot"]
-      database["github-copilot-enterprise"] = {
-        ...githubCopilot,
-        id: ProviderID.githubCopilotEnterprise,
-        name: "GitHub Copilot Enterprise",
-        models: mapValues(githubCopilot.models, (model) => ({
-          ...model,
-          providerID: ProviderID.githubCopilotEnterprise,
-        })),
-      }
-    }
-
    function mergeProvider(providerID: ProviderID, provider: Partial<Info>) {
      const existing = providers[providerID]
      if (existing) {
@@ -1003,46 +979,16 @@ export namespace Provider {
      const providerID = ProviderID.make(plugin.auth.provider)
      if (disabled.has(providerID)) continue

-      // For github-copilot plugin, check if auth exists for either github-copilot or github-copilot-enterprise
-      let hasAuth = false
      const auth = await Auth.get(providerID)
-      if (auth) hasAuth = true
-
-      // Special handling for github-copilot: also check for enterprise auth
-      if (providerID === ProviderID.githubCopilot && !hasAuth) {
-        const enterpriseAuth = await Auth.get("github-copilot-enterprise")
-        if (enterpriseAuth) hasAuth = true
-      }
-
-      if (!hasAuth) continue
+      if (!auth) continue
      if (!plugin.auth.loader) continue

-      // Load for the main provider if auth exists
      if (auth) {
        const options = await plugin.auth.loader(() => Auth.get(providerID) as any, database[plugin.auth.provider])
        const opts = options ?? {}
        const patch: Partial<Info> = providers[providerID] ? { options: opts } : { source: "custom", options: opts }
        mergeProvider(providerID, patch)
      }
-
-      // If this is github-copilot plugin, also register for github-copilot-enterprise if auth exists
-      if (providerID === ProviderID.githubCopilot) {
-        const enterpriseProviderID = ProviderID.githubCopilotEnterprise
-        if (!disabled.has(enterpriseProviderID)) {
-          const enterpriseAuth = await Auth.get(enterpriseProviderID)
-          if (enterpriseAuth) {
-            const enterpriseOptions = await plugin.auth.loader(
-              () => Auth.get(enterpriseProviderID) as any,
-              database[enterpriseProviderID],
-            )
-            const opts = enterpriseOptions ?? {}
-            const patch: Partial<Info> = providers[enterpriseProviderID]
-              ? { options: opts }
-              : { source: "custom", options: opts }
-            mergeProvider(enterpriseProviderID, patch)
-          }
-        }
-      }
    }

    for (const [id, fn] of Object.entries(CUSTOM_LOADERS)) {
--- a/packages/opencode/src/provider/schema.ts
+++ b/packages/opencode/src/provider/schema.ts
@@ -18,7 +18,6 @@ export const ProviderID = providerIdSchema.pipe(
    google: schema.makeUnsafe("google"),
    googleVertex: schema.makeUnsafe("google-vertex"),
    githubCopilot: schema.makeUnsafe("github-copilot"),
-    githubCopilotEnterprise: schema.makeUnsafe("github-copilot-enterprise"),
    amazonBedrock: schema.makeUnsafe("amazon-bedrock"),
    azure: schema.makeUnsafe("azure"),
    openrouter: schema.makeUnsafe("openrouter"),
--- a/packages/opencode/src/pty/index.ts
+++ b/packages/opencode/src/pty/index.ts
@@ -167,40 +167,44 @@ export namespace Pty {
      subscribers: new Map(),
    }
    state().set(id, session)
-    ptyProcess.onData((chunk) => {
-      session.cursor += chunk.length
+    ptyProcess.onData(
+      Instance.bind((chunk) => {
+        session.cursor += chunk.length

-      for (const [key, ws] of session.subscribers.entries()) {
-        if (ws.readyState !== 1) {
-          session.subscribers.delete(key)
-          continue
+        for (const [key, ws] of session.subscribers.entries()) {
+          if (ws.readyState !== 1) {
+            session.subscribers.delete(key)
+            continue
+          }
+
+          if (ws.data !== key) {
+            session.subscribers.delete(key)
+            continue
+          }
+
+          try {
+            ws.send(chunk)
+          } catch {
+            session.subscribers.delete(key)
+          }
        }

-        if (ws.data !== key) {
-          session.subscribers.delete(key)
-          continue
-        }
-
-        try {
-          ws.send(chunk)
-        } catch {
-          session.subscribers.delete(key)
-        }
-      }
-
-      session.buffer += chunk
-      if (session.buffer.length <= BUFFER_LIMIT) return
-      const excess = session.buffer.length - BUFFER_LIMIT
-      session.buffer = session.buffer.slice(excess)
-      session.bufferCursor += excess
-    })
-    ptyProcess.onExit(({ exitCode }) => {
-      if (session.info.status === "exited") return
-      log.info("session exited", { id, exitCode })
-      session.info.status = "exited"
-      Bus.publish(Event.Exited, { id, exitCode })
-      remove(id)
-    })
+        session.buffer += chunk
+        if (session.buffer.length <= BUFFER_LIMIT) return
+        const excess = session.buffer.length - BUFFER_LIMIT
+        session.buffer = session.buffer.slice(excess)
+        session.bufferCursor += excess
+      }),
+    )
+    ptyProcess.onExit(
+      Instance.bind(({ exitCode }) => {
+        if (session.info.status === "exited") return
+        log.info("session exited", { id, exitCode })
+        session.info.status = "exited"
+        Bus.publish(Event.Exited, { id, exitCode })
+        remove(id)
+      }),
+    )
    Bus.publish(Event.Created, { info })
    return info
  }
--- a/packages/opencode/src/question/effect.ts
+++ b/packages/opencode/src/question/effect.ts
@@ -0,0 +1,168 @@
+import { Deferred, Effect, Layer, Schema, ServiceMap } from "effect"
+import { Bus } from "@/bus"
+import { BusEvent } from "@/bus/bus-event"
+import { SessionID, MessageID } from "@/session/schema"
+import { Log } from "@/util/log"
+import z from "zod"
+import { QuestionID } from "./schema"
+
+export namespace QuestionEffect {
+  const log = Log.create({ service: "question" })
+
+  export const Option = z
+    .object({
+      label: z.string().describe("Display text (1-5 words, concise)"),
+      description: z.string().describe("Explanation of choice"),
+    })
+    .meta({ ref: "QuestionOption" })
+  export type Option = z.infer<typeof Option>
+
+  export const Info = z
+    .object({
+      question: z.string().describe("Complete question"),
+      header: z.string().describe("Very short label (max 30 chars)"),
+      options: z.array(Option).describe("Available choices"),
+      multiple: z.boolean().optional().describe("Allow selecting multiple choices"),
+      custom: z.boolean().optional().describe("Allow typing a custom answer (default: true)"),
+    })
+    .meta({ ref: "QuestionInfo" })
+  export type Info = z.infer<typeof Info>
+
+  export const Request = z
+    .object({
+      id: QuestionID.zod,
+      sessionID: SessionID.zod,
+      questions: z.array(Info).describe("Questions to ask"),
+      tool: z
+        .object({
+          messageID: MessageID.zod,
+          callID: z.string(),
+        })
+        .optional(),
+    })
+    .meta({ ref: "QuestionRequest" })
+  export type Request = z.infer<typeof Request>
+
+  export const Answer = z.array(z.string()).meta({ ref: "QuestionAnswer" })
+  export type Answer = z.infer<typeof Answer>
+
+  export const Reply = z.object({
+    answers: z.array(Answer).describe("User answers in order of questions (each answer is an array of selected labels)"),
+  })
+  export type Reply = z.infer<typeof Reply>
+
+  export const Event = {
+    Asked: BusEvent.define("question.asked", Request),
+    Replied: BusEvent.define(
+      "question.replied",
+      z.object({
+        sessionID: SessionID.zod,
+        requestID: QuestionID.zod,
+        answers: z.array(Answer),
+      }),
+    ),
+    Rejected: BusEvent.define(
+      "question.rejected",
+      z.object({
+        sessionID: SessionID.zod,
+        requestID: QuestionID.zod,
+      }),
+    ),
+  }
+
+  export class RejectedError extends Schema.TaggedErrorClass<RejectedError>()("QuestionRejectedError", {}) {
+    override get message() {
+      return "The user dismissed this question"
+    }
+  }
+
+  export type Error = RejectedError
+
+  interface Pending {
+    info: Request
+    deferred: Deferred.Deferred<Answer[], RejectedError>
+  }
+
+  export interface Interface {
+    readonly ask: (input: {
+      sessionID: SessionID
+      questions: Info[]
+      tool?: { messageID: MessageID; callID: string }
+    }) => Effect.Effect<Answer[], RejectedError>
+    readonly reply: (input: { requestID: QuestionID; answers: Answer[] }) => Effect.Effect<void>
+    readonly reject: (requestID: QuestionID) => Effect.Effect<void>
+    readonly list: () => Effect.Effect<Request[]>
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/Question") {}
+
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const pending = new Map<QuestionID, Pending>()
+
+      const ask = Effect.fn("Question.ask")(function* (input: {
+        sessionID: SessionID
+        questions: Info[]
+        tool?: { messageID: MessageID; callID: string }
+      }) {
+        const id = QuestionID.ascending()
+        log.info("asking", { id, questions: input.questions.length })
+
+        const deferred = yield* Deferred.make<Answer[], RejectedError>()
+        const info: Request = {
+          id,
+          sessionID: input.sessionID,
+          questions: input.questions,
+          tool: input.tool,
+        }
+        pending.set(id, { info, deferred })
+        Bus.publish(Event.Asked, info)
+
+        return yield* Effect.ensuring(
+          Deferred.await(deferred),
+          Effect.sync(() => {
+            pending.delete(id)
+          }),
+        )
+      })
+
+      const reply = Effect.fn("Question.reply")(function* (input: { requestID: QuestionID; answers: Answer[] }) {
+        const existing = pending.get(input.requestID)
+        if (!existing) {
+          log.warn("reply for unknown request", { requestID: input.requestID })
+          return
+        }
+        pending.delete(input.requestID)
+        log.info("replied", { requestID: input.requestID, answers: input.answers })
+        Bus.publish(Event.Replied, {
+          sessionID: existing.info.sessionID,
+          requestID: existing.info.id,
+          answers: input.answers,
+        })
+        yield* Deferred.succeed(existing.deferred, input.answers)
+      })
+
+      const reject = Effect.fn("Question.reject")(function* (requestID: QuestionID) {
+        const existing = pending.get(requestID)
+        if (!existing) {
+          log.warn("reject for unknown request", { requestID })
+          return
+        }
+        pending.delete(requestID)
+        log.info("rejected", { requestID })
+        Bus.publish(Event.Rejected, {
+          sessionID: existing.info.sessionID,
+          requestID: existing.info.id,
+        })
+        yield* Deferred.fail(existing.deferred, new RejectedError())
+      })
+
+      const list = Effect.fn("Question.list")(function* () {
+        return Array.from(pending.values(), (x) => x.info)
+      })
+
+      return Service.of({ ask, reply, reject, list })
+    }),
+  )
+}
--- a/packages/opencode/src/question/index.ts
+++ b/packages/opencode/src/question/index.ts
@@ -1,167 +1,39 @@
-import { Bus } from "@/bus"
-import { BusEvent } from "@/bus/bus-event"
-import { SessionID, MessageID } from "@/session/schema"
-import { Instance } from "@/project/instance"
-import { Log } from "@/util/log"
-import z from "zod"
-import { QuestionID } from "./schema"
+import { runPromiseInstance } from "@/effect/runtime"
+import * as S from "./effect"
+import type { QuestionID } from "./schema"
+import type { SessionID, MessageID } from "@/session/schema"

 export namespace Question {
-  const log = Log.create({ service: "question" })
-
-  export const Option = z
-    .object({
-      label: z.string().describe("Display text (1-5 words, concise)"),
-      description: z.string().describe("Explanation of choice"),
-    })
-    .meta({
-      ref: "QuestionOption",
-    })
-  export type Option = z.infer<typeof Option>
-
-  export const Info = z
-    .object({
-      question: z.string().describe("Complete question"),
-      header: z.string().describe("Very short label (max 30 chars)"),
-      options: z.array(Option).describe("Available choices"),
-      multiple: z.boolean().optional().describe("Allow selecting multiple choices"),
-      custom: z.boolean().optional().describe("Allow typing a custom answer (default: true)"),
-    })
-    .meta({
-      ref: "QuestionInfo",
-    })
-  export type Info = z.infer<typeof Info>
-
-  export const Request = z
-    .object({
-      id: QuestionID.zod,
-      sessionID: SessionID.zod,
-      questions: z.array(Info).describe("Questions to ask"),
-      tool: z
-        .object({
-          messageID: MessageID.zod,
-          callID: z.string(),
-        })
-        .optional(),
-    })
-    .meta({
-      ref: "QuestionRequest",
-    })
-  export type Request = z.infer<typeof Request>
-
-  export const Answer = z.array(z.string()).meta({
-    ref: "QuestionAnswer",
-  })
-  export type Answer = z.infer<typeof Answer>
-
-  export const Reply = z.object({
-    answers: z
-      .array(Answer)
-      .describe("User answers in order of questions (each answer is an array of selected labels)"),
-  })
-  export type Reply = z.infer<typeof Reply>
-
-  export const Event = {
-    Asked: BusEvent.define("question.asked", Request),
-    Replied: BusEvent.define(
-      "question.replied",
-      z.object({
-        sessionID: SessionID.zod,
-        requestID: QuestionID.zod,
-        answers: z.array(Answer),
-      }),
-    ),
-    Rejected: BusEvent.define(
-      "question.rejected",
-      z.object({
-        sessionID: SessionID.zod,
-        requestID: QuestionID.zod,
-      }),
-    ),
-  }
-
-  interface PendingEntry {
-    info: Request
-    resolve: (answers: Answer[]) => void
-    reject: (e: any) => void
-  }
-
-  const state = Instance.state(async () => ({
-    pending: new Map<QuestionID, PendingEntry>(),
-  }))
+  export const Option = S.QuestionEffect.Option
+  export type Option = S.QuestionEffect.Option
+  export const Info = S.QuestionEffect.Info
+  export type Info = S.QuestionEffect.Info
+  export const Request = S.QuestionEffect.Request
+  export type Request = S.QuestionEffect.Request
+  export const Answer = S.QuestionEffect.Answer
+  export type Answer = S.QuestionEffect.Answer
+  export const Reply = S.QuestionEffect.Reply
+  export type Reply = S.QuestionEffect.Reply
+  export const Event = S.QuestionEffect.Event
+  export const RejectedError = S.QuestionEffect.RejectedError

  export async function ask(input: {
    sessionID: SessionID
    questions: Info[]
    tool?: { messageID: MessageID; callID: string }
  }): Promise<Answer[]> {
-    const s = await state()
-    const id = QuestionID.ascending()
-
-    log.info("asking", { id, questions: input.questions.length })
-
-    return new Promise<Answer[]>((resolve, reject) => {
-      const info: Request = {
-        id,
-        sessionID: input.sessionID,
-        questions: input.questions,
-        tool: input.tool,
-      }
-      s.pending.set(id, {
-        info,
-        resolve,
-        reject,
-      })
-      Bus.publish(Event.Asked, info)
-    })
+    return runPromiseInstance(S.QuestionEffect.Service.use((service) => service.ask(input)))
  }

  export async function reply(input: { requestID: QuestionID; answers: Answer[] }): Promise<void> {
-    const s = await state()
-    const existing = s.pending.get(input.requestID)
-    if (!existing) {
-      log.warn("reply for unknown request", { requestID: input.requestID })
-      return
-    }
-    s.pending.delete(input.requestID)
-
-    log.info("replied", { requestID: input.requestID, answers: input.answers })
-
-    Bus.publish(Event.Replied, {
-      sessionID: existing.info.sessionID,
-      requestID: existing.info.id,
-      answers: input.answers,
-    })
-
-    existing.resolve(input.answers)
+    return runPromiseInstance(S.QuestionEffect.Service.use((service) => service.reply(input)))
  }

  export async function reject(requestID: QuestionID): Promise<void> {
-    const s = await state()
-    const existing = s.pending.get(requestID)
-    if (!existing) {
-      log.warn("reject for unknown request", { requestID })
-      return
-    }
-    s.pending.delete(requestID)
-
-    log.info("rejected", { requestID })
-
-    Bus.publish(Event.Rejected, {
-      sessionID: existing.info.sessionID,
-      requestID: existing.info.id,
-    })
-
-    existing.reject(new RejectedError())
+    return runPromiseInstance(S.QuestionEffect.Service.use((service) => service.reject(requestID)))
  }

-  export class RejectedError extends Error {
-    constructor() {
-      super("The user dismissed this question")
-    }
-  }
-
-  export async function list() {
-    return state().then((x) => Array.from(x.pending.values(), (x) => x.info))
+  export async function list(): Promise<Request[]> {
+    return runPromiseInstance(S.QuestionEffect.Service.use((service) => service.list()))
  }
 }
--- a/packages/opencode/src/question/schema.ts
+++ b/packages/opencode/src/question/schema.ts
@@ -2,16 +2,16 @@ import { Schema } from "effect"
 import z from "zod"

 import { Identifier } from "@/id/id"
-import { withStatics } from "@/util/schema"
+import { Newtype } from "@/util/schema"

-const questionIdSchema = Schema.String.pipe(Schema.brand("QuestionID"))
+export class QuestionID extends Newtype<QuestionID>()("QuestionID", Schema.String) {
+  static make(id: string): QuestionID {
+    return this.makeUnsafe(id)
+  }

-export type QuestionID = typeof questionIdSchema.Type
+  static ascending(id?: string): QuestionID {
+    return this.makeUnsafe(Identifier.ascending("question", id))
+  }

-export const QuestionID = questionIdSchema.pipe(
-  withStatics((schema: typeof questionIdSchema) => ({
-    make: (id: string) => schema.makeUnsafe(id),
-    ascending: (id?: string) => schema.makeUnsafe(Identifier.ascending("question", id)),
-    zod: Identifier.schema("question").pipe(z.custom<QuestionID>()),
-  })),
-)
+  static readonly zod = Identifier.schema("question") as unknown as z.ZodType<QuestionID>
+}
--- a/packages/opencode/src/scheduler/index.ts
+++ b/packages/opencode/src/scheduler/index.ts
@@ -1,61 +0,0 @@
-import { Instance } from "../project/instance"
-import { Log } from "../util/log"
-
-export namespace Scheduler {
-  const log = Log.create({ service: "scheduler" })
-
-  export type Task = {
-    id: string
-    interval: number
-    run: () => Promise<void>
-    scope?: "instance" | "global"
-  }
-
-  type Timer = ReturnType<typeof setInterval>
-  type Entry = {
-    tasks: Map<string, Task>
-    timers: Map<string, Timer>
-  }
-
-  const create = (): Entry => {
-    const tasks = new Map<string, Task>()
-    const timers = new Map<string, Timer>()
-    return { tasks, timers }
-  }
-
-  const shared = create()
-
-  const state = Instance.state(
-    () => create(),
-    async (entry) => {
-      for (const timer of entry.timers.values()) {
-        clearInterval(timer)
-      }
-      entry.tasks.clear()
-      entry.timers.clear()
-    },
-  )
-
-  export function register(task: Task) {
-    const scope = task.scope ?? "instance"
-    const entry = scope === "global" ? shared : state()
-    const current = entry.timers.get(task.id)
-    if (current && scope === "global") return
-    if (current) clearInterval(current)
-
-    entry.tasks.set(task.id, task)
-    void run(task)
-    const timer = setInterval(() => {
-      void run(task)
-    }, task.interval)
-    timer.unref()
-    entry.timers.set(task.id, timer)
-  }
-
-  async function run(task: Task) {
-    log.info("run", { id: task.id })
-    await task.run().catch((error) => {
-      log.error("run failed", { id: task.id, error })
-    })
-  }
-}
--- a/packages/opencode/src/server/routes/permission.ts
+++ b/packages/opencode/src/server/routes/permission.ts
@@ -1,7 +1,7 @@
 import { Hono } from "hono"
 import { describeRoute, validator, resolver } from "hono-openapi"
 import z from "zod"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"
 import { PermissionID } from "@/permission/schema"
 import { errors } from "../error"
 import { lazy } from "../../util/lazy"
--- a/packages/opencode/src/server/routes/session.ts
+++ b/packages/opencode/src/server/routes/session.ts
@@ -14,7 +14,7 @@ import { Todo } from "../../session/todo"
 import { Agent } from "../../agent/agent"
 import { Snapshot } from "@/snapshot"
 import { Log } from "../../util/log"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"
 import { PermissionID } from "@/permission/schema"
 import { ModelID, ProviderID } from "@/provider/schema"
 import { errors } from "../error"
--- a/packages/opencode/src/server/server.ts
+++ b/packages/opencode/src/server/server.ts
@@ -15,6 +15,7 @@ import { Format } from "../format"
 import { TuiRoutes } from "./routes/tui"
 import { Instance } from "../project/instance"
 import { Vcs } from "../project/vcs"
+import { runPromiseInstance } from "@/effect/runtime"
 import { Agent } from "../agent/agent"
 import { Skill } from "../skill/skill"
 import { Auth } from "../auth"
@@ -330,7 +331,7 @@ export namespace Server {
          },
        }),
        async (c) => {
-          const branch = await Vcs.branch()
+          const branch = await runPromiseInstance(Vcs.Service.use((s) => s.branch()))
          return c.json({
            branch,
          })
--- a/packages/opencode/src/session/compaction.ts
+++ b/packages/opencode/src/session/compaction.ts
@@ -200,6 +200,8 @@ When constructing the summary, try to stick to this template:
 ---`

    const promptText = compacting.prompt ?? [defaultPrompt, ...compacting.context].join("\n\n")
+    const msgs = structuredClone(messages)
+    await Plugin.trigger("experimental.chat.messages.transform", {}, { messages: msgs })
    const result = await processor.process({
      user: userMessage,
      agent,
@@ -208,7 +210,7 @@ When constructing the summary, try to stick to this template:
      tools: {},
      system: [],
      messages: [
-        ...MessageV2.toModelMessages(messages, model, { stripMedia: true }),
+        ...MessageV2.toModelMessages(msgs, model, { stripMedia: true }),
        {
          role: "user",
          content: [
--- a/packages/opencode/src/session/index.ts
+++ b/packages/opencode/src/session/index.ts
@@ -28,7 +28,7 @@ import { SessionID, MessageID, PartID } from "./schema"

 import type { Provider } from "@/provider/provider"
 import { ModelID, ProviderID } from "@/provider/schema"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"
 import { Global } from "@/global"
 import type { LanguageModelV2Usage } from "@ai-sdk/provider"
 import { iife } from "@/util/iife"
--- a/packages/opencode/src/session/llm.ts
+++ b/packages/opencode/src/session/llm.ts
@@ -20,7 +20,7 @@ import type { MessageV2 } from "./message-v2"
 import { Plugin } from "@/plugin"
 import { SystemPrompt } from "./system"
 import { Flag } from "@/flag/flag"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"
 import { Auth } from "@/auth"

 export namespace LLM {
@@ -32,6 +32,7 @@ export namespace LLM {
    sessionID: string
    model: Provider.Model
    agent: Agent.Info
+    permission?: PermissionNext.Ruleset
    system: string[]
    abort: AbortSignal
    messages: ModelMessage[]
@@ -255,8 +256,11 @@ export namespace LLM {
    })
  }

-  async function resolveTools(input: Pick<StreamInput, "tools" | "agent" | "user">) {
-    const disabled = PermissionNext.disabled(Object.keys(input.tools), input.agent.permission)
+  async function resolveTools(input: Pick<StreamInput, "tools" | "agent" | "permission" | "user">) {
+    const disabled = PermissionNext.disabled(
+      Object.keys(input.tools),
+      PermissionNext.merge(input.agent.permission, input.permission ?? []),
+    )
    for (const tool of Object.keys(input.tools)) {
      if (input.user.tools?.[tool] === false || disabled.has(tool)) {
        delete input.tools[tool]
--- a/packages/opencode/src/session/processor.ts
+++ b/packages/opencode/src/session/processor.ts
@@ -12,7 +12,7 @@ import type { Provider } from "@/provider/provider"
 import { LLM } from "./llm"
 import { Config } from "@/config/config"
 import { SessionCompaction } from "./compaction"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"
 import { Question } from "@/question"
 import { PartID } from "./schema"
 import type { SessionID, MessageID } from "./schema"
--- a/packages/opencode/src/session/prompt.ts
+++ b/packages/opencode/src/session/prompt.ts
@@ -41,12 +41,12 @@ import { fn } from "@/util/fn"
 import { SessionProcessor } from "./processor"
 import { TaskTool } from "@/tool/task"
 import { Tool } from "@/tool/tool"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"
 import { SessionStatus } from "./status"
 import { LLM } from "./llm"
 import { iife } from "@/util/iife"
 import { Shell } from "@/shell/shell"
-import { Truncate } from "@/tool/truncation"
+import { Truncate } from "@/tool/truncate"
 import { decodeDataUrl } from "@/util/data-url"

 // @ts-ignore
@@ -666,6 +666,7 @@ export namespace SessionPrompt {
      const result = await processor.process({
        user: lastUser,
        agent,
+        permission: session.permission,
        abort,
        sessionID,
        system,
@@ -1244,7 +1245,7 @@ export namespace SessionPrompt {
                ]
              }

-              FileTime.read(input.sessionID, filepath)
+              await FileTime.read(input.sessionID, filepath)
              return [
                {
                  messageID: info.id,
--- a/packages/opencode/src/session/schema.ts
+++ b/packages/opencode/src/session/schema.ts
@@ -1,41 +1,38 @@
 import { Schema } from "effect"
 import z from "zod"

-import { withStatics } from "@/util/schema"
 import { Identifier } from "@/id/id"
+import { withStatics } from "@/util/schema"

-const sessionIdSchema = Schema.String.pipe(Schema.brand("SessionID"))
-
-export type SessionID = typeof sessionIdSchema.Type
-
-export const SessionID = sessionIdSchema.pipe(
-  withStatics((schema: typeof sessionIdSchema) => ({
-    make: (id: string) => schema.makeUnsafe(id),
-    descending: (id?: string) => schema.makeUnsafe(Identifier.descending("session", id)),
-    zod: Identifier.schema("session").pipe(z.custom<SessionID>()),
+export const SessionID = Schema.String.pipe(
+  Schema.brand("SessionID"),
+  withStatics((s) => ({
+    make: (id: string) => s.makeUnsafe(id),
+    descending: (id?: string) => s.makeUnsafe(Identifier.descending("session", id)),
+    zod: Identifier.schema("session").pipe(z.custom<Schema.Schema.Type<typeof s>>()),
  })),
 )

-const messageIdSchema = Schema.String.pipe(Schema.brand("MessageID"))
+export type SessionID = Schema.Schema.Type<typeof SessionID>

-export type MessageID = typeof messageIdSchema.Type
-
-export const MessageID = messageIdSchema.pipe(
-  withStatics((schema: typeof messageIdSchema) => ({
-    make: (id: string) => schema.makeUnsafe(id),
-    ascending: (id?: string) => schema.makeUnsafe(Identifier.ascending("message", id)),
-    zod: Identifier.schema("message").pipe(z.custom<MessageID>()),
+export const MessageID = Schema.String.pipe(
+  Schema.brand("MessageID"),
+  withStatics((s) => ({
+    make: (id: string) => s.makeUnsafe(id),
+    ascending: (id?: string) => s.makeUnsafe(Identifier.ascending("message", id)),
+    zod: Identifier.schema("message").pipe(z.custom<Schema.Schema.Type<typeof s>>()),
  })),
 )

-const partIdSchema = Schema.String.pipe(Schema.brand("PartID"))
+export type MessageID = Schema.Schema.Type<typeof MessageID>

-export type PartID = typeof partIdSchema.Type
-
-export const PartID = partIdSchema.pipe(
-  withStatics((schema: typeof partIdSchema) => ({
-    make: (id: string) => schema.makeUnsafe(id),
-    ascending: (id?: string) => schema.makeUnsafe(Identifier.ascending("part", id)),
-    zod: Identifier.schema("part").pipe(z.custom<PartID>()),
+export const PartID = Schema.String.pipe(
+  Schema.brand("PartID"),
+  withStatics((s) => ({
+    make: (id: string) => s.makeUnsafe(id),
+    ascending: (id?: string) => s.makeUnsafe(Identifier.ascending("part", id)),
+    zod: Identifier.schema("part").pipe(z.custom<Schema.Schema.Type<typeof s>>()),
  })),
 )
+
+export type PartID = Schema.Schema.Type<typeof PartID>
--- a/packages/opencode/src/session/session.sql.ts
+++ b/packages/opencode/src/session/session.sql.ts
@@ -2,7 +2,7 @@ import { sqliteTable, text, integer, index, primaryKey } from "drizzle-orm/sqlit
 import { ProjectTable } from "../project/project.sql"
 import type { MessageV2 } from "./message-v2"
 import type { Snapshot } from "../snapshot"
-import type { PermissionNext } from "../permission/next"
+import type { PermissionNext } from "../permission"
 import type { ProjectID } from "../project/schema"
 import type { SessionID, MessageID, PartID } from "./schema"
 import type { WorkspaceID } from "../control-plane/schema"
--- a/packages/opencode/src/session/system.ts
+++ b/packages/opencode/src/session/system.ts
@@ -11,7 +11,7 @@ import PROMPT_CODEX from "./prompt/codex_header.txt"
 import PROMPT_TRINITY from "./prompt/trinity.txt"
 import type { Provider } from "@/provider/provider"
 import type { Agent } from "@/agent/agent"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"
 import { Skill } from "@/skill"

 export namespace SystemPrompt {
--- a/packages/opencode/src/skill/discovery.ts
+++ b/packages/opencode/src/skill/discovery.ts
@@ -1,98 +1,119 @@
-import path from "path"
-import { mkdir } from "fs/promises"
-import { Log } from "../util/log"
+import { NodeFileSystem, NodePath } from "@effect/platform-node"
+import { Effect, FileSystem, Layer, Path, Schema, ServiceMap } from "effect"
+import { FetchHttpClient, HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { withTransientReadRetry } from "@/util/effect-http-client"
 import { Global } from "../global"
-import { Filesystem } from "../util/filesystem"
+import { Log } from "../util/log"

 export namespace Discovery {
-  const log = Log.create({ service: "skill-discovery" })
+  const skillConcurrency = 4
+  const fileConcurrency = 8

-  type Index = {
-    skills: Array<{
-      name: string
-      description: string
-      files: string[]
-    }>
+  class IndexSkill extends Schema.Class<IndexSkill>("IndexSkill")({
+    name: Schema.String,
+    files: Schema.Array(Schema.String),
+  }) {}
+
+  class Index extends Schema.Class<Index>("Index")({
+    skills: Schema.Array(IndexSkill),
+  }) {}
+
+  export interface Interface {
+    readonly pull: (url: string) => Effect.Effect<string[]>
  }

-  export function dir() {
-    return path.join(Global.Path.cache, "skills")
-  }
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/SkillDiscovery") {}

-  async function get(url: string, dest: string): Promise<boolean> {
-    if (await Filesystem.exists(dest)) return true
-    return fetch(url)
-      .then(async (response) => {
-        if (!response.ok) {
-          log.error("failed to download", { url, status: response.status })
-          return false
-        }
-        if (response.body) await Filesystem.writeStream(dest, response.body)
-        return true
-      })
-      .catch((err) => {
-        log.error("failed to download", { url, err })
-        return false
-      })
-  }
+  export const layer: Layer.Layer<Service, never, FileSystem.FileSystem | Path.Path | HttpClient.HttpClient> =
+    Layer.effect(
+      Service,
+      Effect.gen(function* () {
+        const log = Log.create({ service: "skill-discovery" })
+        const fs = yield* FileSystem.FileSystem
+        const path = yield* Path.Path
+        const http = HttpClient.filterStatusOk(withTransientReadRetry(yield* HttpClient.HttpClient))
+        const cache = path.join(Global.Path.cache, "skills")

-  export async function pull(url: string): Promise<string[]> {
-    const result: string[] = []
-    const base = url.endsWith("/") ? url : `${url}/`
-    const index = new URL("index.json", base).href
-    const cache = dir()
-    const host = base.slice(0, -1)
+        const download = Effect.fn("Discovery.download")(function* (url: string, dest: string) {
+          if (yield* fs.exists(dest).pipe(Effect.orDie)) return true

-    log.info("fetching index", { url: index })
-    const data = await fetch(index)
-      .then(async (response) => {
-        if (!response.ok) {
-          log.error("failed to fetch index", { url: index, status: response.status })
-          return undefined
-        }
-        return response
-          .json()
-          .then((json) => json as Index)
-          .catch((err) => {
-            log.error("failed to parse index", { url: index, err })
-            return undefined
+          return yield* HttpClientRequest.get(url).pipe(
+            http.execute,
+            Effect.flatMap((res) => res.arrayBuffer),
+            Effect.flatMap((body) =>
+              fs
+                .makeDirectory(path.dirname(dest), { recursive: true })
+                .pipe(Effect.flatMap(() => fs.writeFile(dest, new Uint8Array(body)))),
+            ),
+            Effect.as(true),
+            Effect.catch((err) =>
+              Effect.sync(() => {
+                log.error("failed to download", { url, err })
+                return false
+              }),
+            ),
+          )
+        })
+
+        const pull = Effect.fn("Discovery.pull")(function* (url: string) {
+          const base = url.endsWith("/") ? url : `${url}/`
+          const index = new URL("index.json", base).href
+          const host = base.slice(0, -1)
+
+          log.info("fetching index", { url: index })
+
+          const data = yield* HttpClientRequest.get(index).pipe(
+            HttpClientRequest.acceptJson,
+            http.execute,
+            Effect.flatMap(HttpClientResponse.schemaBodyJson(Index)),
+            Effect.catch((err) =>
+              Effect.sync(() => {
+                log.error("failed to fetch index", { url: index, err })
+                return null
+              }),
+            ),
+          )
+
+          if (!data) return []
+
+          const list = data.skills.filter((skill) => {
+            if (!skill.files.includes("SKILL.md")) {
+              log.warn("skill entry missing SKILL.md", { url: index, skill: skill.name })
+              return false
+            }
+            return true
          })
-      })
-      .catch((err) => {
-        log.error("failed to fetch index", { url: index, err })
-        return undefined
-      })

-    if (!data?.skills || !Array.isArray(data.skills)) {
-      log.warn("invalid index format", { url: index })
-      return result
-    }
+          const dirs = yield* Effect.forEach(
+            list,
+            (skill) =>
+              Effect.gen(function* () {
+                const root = path.join(cache, skill.name)

-    const list = data.skills.filter((skill) => {
-      if (!skill?.name || !Array.isArray(skill.files)) {
-        log.warn("invalid skill entry", { url: index, skill })
-        return false
-      }
-      return true
-    })
+                yield* Effect.forEach(
+                  skill.files,
+                  (file) => download(new URL(file, `${host}/${skill.name}/`).href, path.join(root, file)),
+                  {
+                    concurrency: fileConcurrency,
+                  },
+                )

-    await Promise.all(
-      list.map(async (skill) => {
-        const root = path.join(cache, skill.name)
-        await Promise.all(
-          skill.files.map(async (file) => {
-            const link = new URL(file, `${host}/${skill.name}/`).href
-            const dest = path.join(root, file)
-            await mkdir(path.dirname(dest), { recursive: true })
-            await get(link, dest)
-          }),
-        )
+                const md = path.join(root, "SKILL.md")
+                return (yield* fs.exists(md).pipe(Effect.orDie)) ? root : null
+              }),
+            { concurrency: skillConcurrency },
+          )

-        const md = path.join(root, "SKILL.md")
-        if (await Filesystem.exists(md)) result.push(root)
+          return dirs.filter((dir): dir is string => dir !== null)
+        })
+
+        return Service.of({ pull })
      }),
    )

-    return result
-  }
+  export const defaultLayer: Layer.Layer<Service> = layer.pipe(
+    Layer.provide(FetchHttpClient.layer),
+    Layer.provide(NodeFileSystem.layer),
+    Layer.provide(NodePath.layer),
+  )
 }
--- a/packages/opencode/src/skill/skill.ts
+++ b/packages/opencode/src/skill/skill.ts
@@ -1,24 +1,30 @@
-import z from "zod"
-import path from "path"
 import os from "os"
-import { Config } from "../config/config"
-import { Instance } from "../project/instance"
-import { NamedError } from "@opencode-ai/util/error"
-import { ConfigMarkdown } from "../config/markdown"
-import { Log } from "../util/log"
-import { Global } from "@/global"
-import { Filesystem } from "@/util/filesystem"
-import { Flag } from "@/flag/flag"
-import { Bus } from "@/bus"
-import { Session } from "@/session"
-import { Discovery } from "./discovery"
-import { Glob } from "../util/glob"
+import path from "path"
 import { pathToFileURL } from "url"
+import z from "zod"
+import { Effect, Layer, ServiceMap } from "effect"
+import { NamedError } from "@opencode-ai/util/error"
 import type { Agent } from "@/agent/agent"
-import { PermissionNext } from "@/permission/next"
+import { Bus } from "@/bus"
+import { InstanceContext } from "@/effect/instance-context"
+import { runPromiseInstance } from "@/effect/runtime"
+import { Flag } from "@/flag/flag"
+import { Global } from "@/global"
+import { PermissionNext } from "@/permission"
+import { Filesystem } from "@/util/filesystem"
+import { Config } from "../config/config"
+import { ConfigMarkdown } from "../config/markdown"
+import { Glob } from "../util/glob"
+import { Log } from "../util/log"
+import { Discovery } from "./discovery"

 export namespace Skill {
  const log = Log.create({ service: "skill" })
+  const EXTERNAL_DIRS = [".claude", ".agents"]
+  const EXTERNAL_SKILL_PATTERN = "skills/**/SKILL.md"
+  const OPENCODE_SKILL_PATTERN = "{skill,skills}/**/SKILL.md"
+  const SKILL_PATTERN = "**/SKILL.md"
+
  export const Info = z.object({
    name: z.string(),
    description: z.string(),
@@ -45,174 +51,205 @@ export namespace Skill {
    }),
  )

-  // External skill directories to search for (project-level and global)
-  // These follow the directory layout used by Claude Code and other agents.
-  const EXTERNAL_DIRS = [".claude", ".agents"]
-  const EXTERNAL_SKILL_PATTERN = "skills/**/SKILL.md"
-  const OPENCODE_SKILL_PATTERN = "{skill,skills}/**/SKILL.md"
-  const SKILL_PATTERN = "**/SKILL.md"
+  type State = {
+    skills: Record<string, Info>
+    dirs: Set<string>
+    task?: Promise<void>
+  }

-  export const state = Instance.state(async () => {
-    const skills: Record<string, Info> = {}
-    const dirs = new Set<string>()
+  type Cache = State & {
+    ensure: () => Promise<void>
+  }

-    const addSkill = async (match: string) => {
-      const md = await ConfigMarkdown.parse(match).catch((err) => {
-        const message = ConfigMarkdown.FrontmatterError.isInstance(err)
-          ? err.data.message
-          : `Failed to parse skill ${match}`
-        Bus.publish(Session.Event.Error, { error: new NamedError.Unknown({ message }).toObject() })
-        log.error("failed to load skill", { skill: match, err })
-        return undefined
-      })
+  export interface Interface {
+    readonly get: (name: string) => Effect.Effect<Info | undefined>
+    readonly all: () => Effect.Effect<Info[]>
+    readonly dirs: () => Effect.Effect<string[]>
+    readonly available: (agent?: Agent.Info) => Effect.Effect<Info[]>
+  }

-      if (!md) return
+  const add = async (state: State, match: string) => {
+    const md = await ConfigMarkdown.parse(match).catch(async (err) => {
+      const message = ConfigMarkdown.FrontmatterError.isInstance(err)
+        ? err.data.message
+        : `Failed to parse skill ${match}`
+      const { Session } = await import("@/session")
+      Bus.publish(Session.Event.Error, { error: new NamedError.Unknown({ message }).toObject() })
+      log.error("failed to load skill", { skill: match, err })
+      return undefined
+    })

-      const parsed = Info.pick({ name: true, description: true }).safeParse(md.data)
-      if (!parsed.success) return
+    if (!md) return

-      // Warn on duplicate skill names
-      if (skills[parsed.data.name]) {
-        log.warn("duplicate skill name", {
-          name: parsed.data.name,
-          existing: skills[parsed.data.name].location,
-          duplicate: match,
-        })
-      }
+    const parsed = Info.pick({ name: true, description: true }).safeParse(md.data)
+    if (!parsed.success) return

-      dirs.add(path.dirname(match))
-
-      skills[parsed.data.name] = {
+    if (state.skills[parsed.data.name]) {
+      log.warn("duplicate skill name", {
        name: parsed.data.name,
-        description: parsed.data.description,
-        location: match,
-        content: md.content,
-      }
-    }
-
-    const scanExternal = async (root: string, scope: "global" | "project") => {
-      return Glob.scan(EXTERNAL_SKILL_PATTERN, {
-        cwd: root,
-        absolute: true,
-        include: "file",
-        dot: true,
-        symlink: true,
+        existing: state.skills[parsed.data.name].location,
+        duplicate: match,
      })
-        .then((matches) => Promise.all(matches.map(addSkill)))
-        .catch((error) => {
-          log.error(`failed to scan ${scope} skills`, { dir: root, error })
-        })
    }

-    // Scan external skill directories (.claude/skills/, .agents/skills/, etc.)
-    // Load global (home) first, then project-level (so project-level overwrites)
-    if (!Flag.OPENCODE_DISABLE_EXTERNAL_SKILLS) {
-      for (const dir of EXTERNAL_DIRS) {
-        const root = path.join(Global.Path.home, dir)
-        if (!(await Filesystem.isDir(root))) continue
-        await scanExternal(root, "global")
-      }
-
-      for await (const root of Filesystem.up({
-        targets: EXTERNAL_DIRS,
-        start: Instance.directory,
-        stop: Instance.worktree,
-      })) {
-        await scanExternal(root, "project")
-      }
+    state.dirs.add(path.dirname(match))
+    state.skills[parsed.data.name] = {
+      name: parsed.data.name,
+      description: parsed.data.description,
+      location: match,
+      content: md.content,
    }
+  }

-    // Scan .opencode/skill/ directories
-    for (const dir of await Config.directories()) {
-      const matches = await Glob.scan(OPENCODE_SKILL_PATTERN, {
-        cwd: dir,
-        absolute: true,
-        include: "file",
-        symlink: true,
+  const scan = async (state: State, root: string, pattern: string, opts?: { dot?: boolean; scope?: string }) => {
+    return Glob.scan(pattern, {
+      cwd: root,
+      absolute: true,
+      include: "file",
+      symlink: true,
+      dot: opts?.dot,
+    })
+      .then((matches) => Promise.all(matches.map((match) => add(state, match))))
+      .catch((error) => {
+        if (!opts?.scope) throw error
+        log.error(`failed to scan ${opts.scope} skills`, { dir: root, error })
      })
-      for (const match of matches) {
-        await addSkill(match)
-      }
+  }
+
+  // TODO: Migrate to Effect
+  const create = (instance: InstanceContext.Shape, discovery: Discovery.Interface): Cache => {
+    const state: State = {
+      skills: {},
+      dirs: new Set<string>(),
    }

-    // Scan additional skill paths from config
-    const config = await Config.get()
-    for (const skillPath of config.skills?.paths ?? []) {
-      const expanded = skillPath.startsWith("~/") ? path.join(os.homedir(), skillPath.slice(2)) : skillPath
-      const resolved = path.isAbsolute(expanded) ? expanded : path.join(Instance.directory, expanded)
-      if (!(await Filesystem.isDir(resolved))) {
-        log.warn("skill path not found", { path: resolved })
-        continue
-      }
-      const matches = await Glob.scan(SKILL_PATTERN, {
-        cwd: resolved,
-        absolute: true,
-        include: "file",
-        symlink: true,
-      })
-      for (const match of matches) {
-        await addSkill(match)
-      }
-    }
+    const load = async () => {
+      if (!Flag.OPENCODE_DISABLE_EXTERNAL_SKILLS) {
+        for (const dir of EXTERNAL_DIRS) {
+          const root = path.join(Global.Path.home, dir)
+          if (!(await Filesystem.isDir(root))) continue
+          await scan(state, root, EXTERNAL_SKILL_PATTERN, { dot: true, scope: "global" })
+        }

-    // Download and load skills from URLs
-    for (const url of config.skills?.urls ?? []) {
-      const list = await Discovery.pull(url)
-      for (const dir of list) {
-        dirs.add(dir)
-        const matches = await Glob.scan(SKILL_PATTERN, {
-          cwd: dir,
-          absolute: true,
-          include: "file",
-          symlink: true,
-        })
-        for (const match of matches) {
-          await addSkill(match)
+        for await (const root of Filesystem.up({
+          targets: EXTERNAL_DIRS,
+          start: instance.directory,
+          stop: instance.project.worktree,
+        })) {
+          await scan(state, root, EXTERNAL_SKILL_PATTERN, { dot: true, scope: "project" })
        }
      }
+
+      for (const dir of await Config.directories()) {
+        await scan(state, dir, OPENCODE_SKILL_PATTERN)
+      }
+
+      const cfg = await Config.get()
+      for (const item of cfg.skills?.paths ?? []) {
+        const expanded = item.startsWith("~/") ? path.join(os.homedir(), item.slice(2)) : item
+        const dir = path.isAbsolute(expanded) ? expanded : path.join(instance.directory, expanded)
+        if (!(await Filesystem.isDir(dir))) {
+          log.warn("skill path not found", { path: dir })
+          continue
+        }
+
+        await scan(state, dir, SKILL_PATTERN)
+      }
+
+      for (const url of cfg.skills?.urls ?? []) {
+        for (const dir of await Effect.runPromise(discovery.pull(url))) {
+          state.dirs.add(dir)
+          await scan(state, dir, SKILL_PATTERN)
+        }
+      }
+
+      log.info("init", { count: Object.keys(state.skills).length })
    }

-    return {
-      skills,
-      dirs: Array.from(dirs),
+    const ensure = () => {
+      if (state.task) return state.task
+      state.task = load().catch((err) => {
+        state.task = undefined
+        throw err
+      })
+      return state.task
    }
-  })
+
+    return { ...state, ensure }
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/Skill") {}
+
+  export const layer: Layer.Layer<Service, never, InstanceContext | Discovery.Service> = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const instance = yield* InstanceContext
+      const discovery = yield* Discovery.Service
+      const state = create(instance, discovery)
+
+      const get = Effect.fn("Skill.get")(function* (name: string) {
+        yield* Effect.promise(() => state.ensure())
+        return state.skills[name]
+      })
+
+      const all = Effect.fn("Skill.all")(function* () {
+        yield* Effect.promise(() => state.ensure())
+        return Object.values(state.skills)
+      })
+
+      const dirs = Effect.fn("Skill.dirs")(function* () {
+        yield* Effect.promise(() => state.ensure())
+        return Array.from(state.dirs)
+      })
+
+      const available = Effect.fn("Skill.available")(function* (agent?: Agent.Info) {
+        yield* Effect.promise(() => state.ensure())
+        const list = Object.values(state.skills)
+        if (!agent) return list
+        return list.filter((skill) => PermissionNext.evaluate("skill", skill.name, agent.permission).action !== "deny")
+      })
+
+      return Service.of({ get, all, dirs, available })
+    }),
+  )
+
+  export const defaultLayer: Layer.Layer<Service, never, InstanceContext> = layer.pipe(
+    Layer.provide(Discovery.defaultLayer),
+  )

  export async function get(name: string) {
-    return state().then((x) => x.skills[name])
+    return runPromiseInstance(Service.use((skill) => skill.get(name)))
  }

  export async function all() {
-    return state().then((x) => Object.values(x.skills))
+    return runPromiseInstance(Service.use((skill) => skill.all()))
  }

  export async function dirs() {
-    return state().then((x) => x.dirs)
+    return runPromiseInstance(Service.use((skill) => skill.dirs()))
  }

  export async function available(agent?: Agent.Info) {
-    const list = await all()
-    if (!agent) return list
-    return list.filter((skill) => PermissionNext.evaluate("skill", skill.name, agent.permission).action !== "deny")
+    return runPromiseInstance(Service.use((skill) => skill.available(agent)))
  }

  export function fmt(list: Info[], opts: { verbose: boolean }) {
-    if (list.length === 0) {
-      return "No skills are currently available."
-    }
+    if (list.length === 0) return "No skills are currently available."
+
    if (opts.verbose) {
      return [
        "<available_skills>",
        ...list.flatMap((skill) => [
-          `  <skill>`,
+          "  <skill>",
          `    <name>${skill.name}</name>`,
          `    <description>${skill.description}</description>`,
          `    <location>${pathToFileURL(skill.location).href}</location>`,
-          `  </skill>`,
+          "  </skill>",
        ]),
        "</available_skills>",
      ].join("\n")
    }
-    return ["## Available Skills", ...list.flatMap((skill) => `- **${skill.name}**: ${skill.description}`)].join("\n")
+
+    return ["## Available Skills", ...list.map((skill) => `- **${skill.name}**: ${skill.description}`)].join("\n")
  }
 }
--- a/packages/opencode/src/snapshot/index.ts
+++ b/packages/opencode/src/snapshot/index.ts
@@ -1,257 +1,21 @@
+import { NodeChildProcessSpawner, NodeFileSystem, NodePath } from "@effect/platform-node"
+import { Cause, Duration, Effect, FileSystem, Layer, Schedule, ServiceMap, Stream } from "effect"
+import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process"
 import path from "path"
-import fs from "fs/promises"
-import { Filesystem } from "../util/filesystem"
-import { Log } from "../util/log"
-import { Flag } from "../flag/flag"
-import { Global } from "../global"
 import z from "zod"
+import { InstanceContext } from "@/effect/instance-context"
+import { runPromiseInstance } from "@/effect/runtime"
 import { Config } from "../config/config"
-import { Instance } from "../project/instance"
-import { Scheduler } from "../scheduler"
-import { Process } from "@/util/process"
+import { Global } from "../global"
+import { Log } from "../util/log"

 export namespace Snapshot {
-  const log = Log.create({ service: "snapshot" })
-  const hour = 60 * 60 * 1000
-  const prune = "7.days"
-
-  function args(git: string, cmd: string[]) {
-    return ["--git-dir", git, "--work-tree", Instance.worktree, ...cmd]
-  }
-
-  export function init() {
-    Scheduler.register({
-      id: "snapshot.cleanup",
-      interval: hour,
-      run: cleanup,
-      scope: "instance",
-    })
-  }
-
-  export async function cleanup() {
-    if (Instance.project.vcs !== "git") return
-    const cfg = await Config.get()
-    if (cfg.snapshot === false) return
-    const git = gitdir()
-    const exists = await fs
-      .stat(git)
-      .then(() => true)
-      .catch(() => false)
-    if (!exists) return
-    const result = await Process.run(["git", ...args(git, ["gc", `--prune=${prune}`])], {
-      cwd: Instance.directory,
-      nothrow: true,
-    })
-    if (result.code !== 0) {
-      log.warn("cleanup failed", {
-        exitCode: result.code,
-        stderr: result.stderr.toString(),
-        stdout: result.stdout.toString(),
-      })
-      return
-    }
-    log.info("cleanup", { prune })
-  }
-
-  export async function track() {
-    if (Instance.project.vcs !== "git") return
-    const cfg = await Config.get()
-    if (cfg.snapshot === false) return
-    const git = gitdir()
-    if (await fs.mkdir(git, { recursive: true })) {
-      await Process.run(["git", "init"], {
-        env: {
-          ...process.env,
-          GIT_DIR: git,
-          GIT_WORK_TREE: Instance.worktree,
-        },
-        nothrow: true,
-      })
-
-      // Configure git to not convert line endings on Windows
-      await Process.run(["git", "--git-dir", git, "config", "core.autocrlf", "false"], { nothrow: true })
-      await Process.run(["git", "--git-dir", git, "config", "core.longpaths", "true"], { nothrow: true })
-      await Process.run(["git", "--git-dir", git, "config", "core.symlinks", "true"], { nothrow: true })
-      await Process.run(["git", "--git-dir", git, "config", "core.fsmonitor", "false"], { nothrow: true })
-      log.info("initialized")
-    }
-    await add(git)
-    const hash = await Process.text(["git", ...args(git, ["write-tree"])], {
-      cwd: Instance.directory,
-      nothrow: true,
-    }).then((x) => x.text)
-    log.info("tracking", { hash, cwd: Instance.directory, git })
-    return hash.trim()
-  }
-
  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 git = gitdir()
-    await add(git)
-    const result = await Process.text(
-      [
-        "git",
-        "-c",
-        "core.autocrlf=false",
-        "-c",
-        "core.longpaths=true",
-        "-c",
-        "core.symlinks=true",
-        "-c",
-        "core.quotepath=false",
-        ...args(git, ["diff", "--no-ext-diff", "--name-only", hash, "--", "."]),
-      ],
-      {
-        cwd: Instance.directory,
-        nothrow: true,
-      },
-    )
-
-    // If git diff fails, return empty patch
-    if (result.code !== 0) {
-      log.warn("failed to get diff", { hash, exitCode: result.code })
-      return { hash, files: [] }
-    }
-
-    const files = result.text
-    return {
-      hash,
-      files: files
-        .trim()
-        .split("\n")
-        .map((x) => x.trim())
-        .filter(Boolean)
-        .map((x) => path.join(Instance.worktree, x).replaceAll("\\", "/")),
-    }
-  }
-
-  export async function restore(snapshot: string) {
-    log.info("restore", { commit: snapshot })
-    const git = gitdir()
-    const result = await Process.run(
-      ["git", "-c", "core.longpaths=true", "-c", "core.symlinks=true", ...args(git, ["read-tree", snapshot])],
-      {
-        cwd: Instance.worktree,
-        nothrow: true,
-      },
-    )
-    if (result.code === 0) {
-      const checkout = await Process.run(
-        ["git", "-c", "core.longpaths=true", "-c", "core.symlinks=true", ...args(git, ["checkout-index", "-a", "-f"])],
-        {
-          cwd: Instance.worktree,
-          nothrow: true,
-        },
-      )
-      if (checkout.code === 0) return
-      log.error("failed to restore snapshot", {
-        snapshot,
-        exitCode: checkout.code,
-        stderr: checkout.stderr.toString(),
-        stdout: checkout.stdout.toString(),
-      })
-      return
-    }
-
-    log.error("failed to restore snapshot", {
-      snapshot,
-      exitCode: result.code,
-      stderr: result.stderr.toString(),
-      stdout: result.stdout.toString(),
-    })
-  }
-
-  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 Process.run(
-          [
-            "git",
-            "-c",
-            "core.longpaths=true",
-            "-c",
-            "core.symlinks=true",
-            ...args(git, ["checkout", item.hash, "--", file]),
-          ],
-          {
-            cwd: Instance.worktree,
-            nothrow: true,
-          },
-        )
-        if (result.code !== 0) {
-          const relativePath = path.relative(Instance.worktree, file)
-          const checkTree = await Process.text(
-            [
-              "git",
-              "-c",
-              "core.longpaths=true",
-              "-c",
-              "core.symlinks=true",
-              ...args(git, ["ls-tree", item.hash, "--", relativePath]),
-            ],
-            {
-              cwd: Instance.worktree,
-              nothrow: true,
-            },
-          )
-          if (checkTree.code === 0 && checkTree.text.trim()) {
-            log.info("file existed in snapshot but checkout failed, keeping", {
-              file,
-            })
-          } else {
-            log.info("file did not exist in snapshot, deleting", { file })
-            await fs.unlink(file).catch(() => {})
-          }
-        }
-        files.add(file)
-      }
-    }
-  }
-
-  export async function diff(hash: string) {
-    const git = gitdir()
-    await add(git)
-    const result = await Process.text(
-      [
-        "git",
-        "-c",
-        "core.autocrlf=false",
-        "-c",
-        "core.longpaths=true",
-        "-c",
-        "core.symlinks=true",
-        "-c",
-        "core.quotepath=false",
-        ...args(git, ["diff", "--no-ext-diff", hash, "--", "."]),
-      ],
-      {
-        cwd: Instance.worktree,
-        nothrow: true,
-      },
-    )
-
-    if (result.code !== 0) {
-      log.warn("failed to get diff", {
-        hash,
-        exitCode: result.code,
-        stderr: result.stderr.toString(),
-        stdout: result.stdout.toString(),
-      })
-      return ""
-    }
-
-    return result.text.trim()
-  }
-
  export const FileDiff = z
    .object({
      file: z.string(),
@@ -265,152 +29,321 @@ export namespace Snapshot {
      ref: "FileDiff",
    })
  export type FileDiff = z.infer<typeof FileDiff>
-  export async function diffFull(from: string, to: string): Promise<FileDiff[]> {
-    const git = gitdir()
-    const result: FileDiff[] = []
-    const status = new Map<string, "added" | "deleted" | "modified">()

-    const statuses = await Process.text(
-      [
-        "git",
-        "-c",
-        "core.autocrlf=false",
-        "-c",
-        "core.longpaths=true",
-        "-c",
-        "core.symlinks=true",
-        "-c",
-        "core.quotepath=false",
-        ...args(git, ["diff", "--no-ext-diff", "--name-status", "--no-renames", from, to, "--", "."]),
-      ],
-      {
-        cwd: Instance.directory,
-        nothrow: true,
-      },
-    ).then((x) => x.text)
+  export async function cleanup() {
+    return runPromiseInstance(Service.use((svc) => svc.cleanup()))
+  }

-    for (const line of statuses.trim().split("\n")) {
-      if (!line) continue
-      const [code, file] = line.split("\t")
-      if (!code || !file) continue
-      const kind = code.startsWith("A") ? "added" : code.startsWith("D") ? "deleted" : "modified"
-      status.set(file, kind)
-    }
+  export async function track() {
+    return runPromiseInstance(Service.use((svc) => svc.track()))
+  }

-    for (const line of await Process.lines(
-      [
-        "git",
-        "-c",
-        "core.autocrlf=false",
-        "-c",
-        "core.longpaths=true",
-        "-c",
-        "core.symlinks=true",
-        "-c",
-        "core.quotepath=false",
-        ...args(git, ["diff", "--no-ext-diff", "--no-renames", "--numstat", from, to, "--", "."]),
-      ],
-      {
-        cwd: Instance.directory,
-        nothrow: true,
-      },
-    )) {
-      if (!line) continue
-      const [additions, deletions, file] = line.split("\t")
-      const isBinaryFile = additions === "-" && deletions === "-"
-      const before = isBinaryFile
-        ? ""
-        : await Process.text(
-            [
-              "git",
-              "-c",
-              "core.autocrlf=false",
-              "-c",
-              "core.longpaths=true",
-              "-c",
-              "core.symlinks=true",
-              ...args(git, ["show", `${from}:${file}`]),
-            ],
-            { nothrow: true },
-          ).then((x) => x.text)
-      const after = isBinaryFile
-        ? ""
-        : await Process.text(
-            [
-              "git",
-              "-c",
-              "core.autocrlf=false",
-              "-c",
-              "core.longpaths=true",
-              "-c",
-              "core.symlinks=true",
-              ...args(git, ["show", `${to}:${file}`]),
-            ],
-            { nothrow: true },
-          ).then((x) => x.text)
-      const added = isBinaryFile ? 0 : parseInt(additions)
-      const deleted = isBinaryFile ? 0 : parseInt(deletions)
-      result.push({
-        file,
-        before,
-        after,
-        additions: Number.isFinite(added) ? added : 0,
-        deletions: Number.isFinite(deleted) ? deleted : 0,
-        status: status.get(file) ?? "modified",
+  export async function patch(hash: string) {
+    return runPromiseInstance(Service.use((svc) => svc.patch(hash)))
+  }
+
+  export async function restore(snapshot: string) {
+    return runPromiseInstance(Service.use((svc) => svc.restore(snapshot)))
+  }
+
+  export async function revert(patches: Patch[]) {
+    return runPromiseInstance(Service.use((svc) => svc.revert(patches)))
+  }
+
+  export async function diff(hash: string) {
+    return runPromiseInstance(Service.use((svc) => svc.diff(hash)))
+  }
+
+  export async function diffFull(from: string, to: string) {
+    return runPromiseInstance(Service.use((svc) => svc.diffFull(from, to)))
+  }
+
+  const log = Log.create({ service: "snapshot" })
+  const prune = "7.days"
+  const core = ["-c", "core.longpaths=true", "-c", "core.symlinks=true"]
+  const cfg = ["-c", "core.autocrlf=false", ...core]
+  const quote = [...cfg, "-c", "core.quotepath=false"]
+
+  interface GitResult {
+    readonly code: ChildProcessSpawner.ExitCode
+    readonly text: string
+    readonly stderr: string
+  }
+
+  export interface Interface {
+    readonly cleanup: () => Effect.Effect<void>
+    readonly track: () => Effect.Effect<string | undefined>
+    readonly patch: (hash: string) => Effect.Effect<Snapshot.Patch>
+    readonly restore: (snapshot: string) => Effect.Effect<void>
+    readonly revert: (patches: Snapshot.Patch[]) => Effect.Effect<void>
+    readonly diff: (hash: string) => Effect.Effect<string>
+    readonly diffFull: (from: string, to: string) => Effect.Effect<Snapshot.FileDiff[]>
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/Snapshot") {}
+
+  export const layer: Layer.Layer<
+    Service,
+    never,
+    InstanceContext | FileSystem.FileSystem | ChildProcessSpawner.ChildProcessSpawner
+  > = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const ctx = yield* InstanceContext
+      const fs = yield* FileSystem.FileSystem
+      const spawner = yield* ChildProcessSpawner.ChildProcessSpawner
+      const directory = ctx.directory
+      const worktree = ctx.worktree
+      const project = ctx.project
+      const gitdir = path.join(Global.Path.data, "snapshot", project.id)
+
+      const args = (cmd: string[]) => ["--git-dir", gitdir, "--work-tree", worktree, ...cmd]
+
+      const git = Effect.fnUntraced(
+        function* (cmd: string[], opts?: { cwd?: string; env?: Record<string, string> }) {
+          const proc = ChildProcess.make("git", cmd, {
+            cwd: opts?.cwd,
+            env: opts?.env,
+            extendEnv: true,
+          })
+          const handle = yield* spawner.spawn(proc)
+          const [text, stderr] = yield* Effect.all(
+            [Stream.mkString(Stream.decodeText(handle.stdout)), Stream.mkString(Stream.decodeText(handle.stderr))],
+            { concurrency: 2 },
+          )
+          const code = yield* handle.exitCode
+          return { code, text, stderr } satisfies GitResult
+        },
+        Effect.scoped,
+        Effect.catch((err) =>
+          Effect.succeed({
+            code: ChildProcessSpawner.ExitCode(1),
+            text: "",
+            stderr: String(err),
+          }),
+        ),
+      )
+
+      const exists = (file: string) => fs.exists(file).pipe(Effect.orDie)
+      const mkdir = (dir: string) => fs.makeDirectory(dir, { recursive: true }).pipe(Effect.orDie)
+      const write = (file: string, text: string) => fs.writeFileString(file, text).pipe(Effect.orDie)
+      const read = (file: string) => fs.readFileString(file).pipe(Effect.catch(() => Effect.succeed("")))
+      const remove = (file: string) => fs.remove(file).pipe(Effect.catch(() => Effect.void))
+
+      const enabled = Effect.fnUntraced(function* () {
+        if (project.vcs !== "git") return false
+        return (yield* Effect.promise(() => Config.get())).snapshot !== false
      })
-    }
-    return result
-  }

-  function gitdir() {
-    const project = Instance.project
-    return path.join(Global.Path.data, "snapshot", project.id)
-  }
+      const excludes = Effect.fnUntraced(function* () {
+        const result = yield* git(["rev-parse", "--path-format=absolute", "--git-path", "info/exclude"], {
+          cwd: worktree,
+        })
+        const file = result.text.trim()
+        if (!file) return
+        if (!(yield* exists(file))) return
+        return file
+      })

-  async function add(git: string) {
-    await syncExclude(git)
-    await Process.run(
-      [
-        "git",
-        "-c",
-        "core.autocrlf=false",
-        "-c",
-        "core.longpaths=true",
-        "-c",
-        "core.symlinks=true",
-        ...args(git, ["add", "."]),
-      ],
-      {
-        cwd: Instance.directory,
-        nothrow: true,
-      },
-    )
-  }
+      const sync = Effect.fnUntraced(function* () {
+        const file = yield* excludes()
+        const target = path.join(gitdir, "info", "exclude")
+        yield* mkdir(path.join(gitdir, "info"))
+        if (!file) {
+          yield* write(target, "")
+          return
+        }
+        yield* write(target, yield* read(file))
+      })

-  async function syncExclude(git: string) {
-    const file = await excludes()
-    const target = path.join(git, "info", "exclude")
-    await fs.mkdir(path.join(git, "info"), { recursive: true })
-    if (!file) {
-      await Filesystem.write(target, "")
-      return
-    }
-    const text = await Filesystem.readText(file).catch(() => "")
+      const add = Effect.fnUntraced(function* () {
+        yield* sync()
+        yield* git([...cfg, ...args(["add", "."])], { cwd: directory })
+      })

-    await Filesystem.write(target, text)
-  }
+      const cleanup = Effect.fn("Snapshot.cleanup")(function* () {
+        if (!(yield* enabled())) return
+        if (!(yield* exists(gitdir))) return
+        const result = yield* git(args(["gc", `--prune=${prune}`]), { cwd: directory })
+        if (result.code !== 0) {
+          log.warn("cleanup failed", {
+            exitCode: result.code,
+            stderr: result.stderr,
+          })
+          return
+        }
+        log.info("cleanup", { prune })
+      })

-  async function excludes() {
-    const file = await Process.text(["git", "rev-parse", "--path-format=absolute", "--git-path", "info/exclude"], {
-      cwd: Instance.worktree,
-      nothrow: true,
-    }).then((x) => x.text)
-    if (!file.trim()) return
-    const exists = await fs
-      .stat(file.trim())
-      .then(() => true)
-      .catch(() => false)
-    if (!exists) return
-    return file.trim()
-  }
+      const track = Effect.fn("Snapshot.track")(function* () {
+        if (!(yield* enabled())) return
+        const existed = yield* exists(gitdir)
+        yield* mkdir(gitdir)
+        if (!existed) {
+          yield* git(["init"], {
+            env: { GIT_DIR: gitdir, GIT_WORK_TREE: worktree },
+          })
+          yield* git(["--git-dir", gitdir, "config", "core.autocrlf", "false"])
+          yield* git(["--git-dir", gitdir, "config", "core.longpaths", "true"])
+          yield* git(["--git-dir", gitdir, "config", "core.symlinks", "true"])
+          yield* git(["--git-dir", gitdir, "config", "core.fsmonitor", "false"])
+          log.info("initialized")
+        }
+        yield* add()
+        const result = yield* git(args(["write-tree"]), { cwd: directory })
+        const hash = result.text.trim()
+        log.info("tracking", { hash, cwd: directory, git: gitdir })
+        return hash
+      })
+
+      const patch = Effect.fn("Snapshot.patch")(function* (hash: string) {
+        yield* add()
+        const result = yield* git([...quote, ...args(["diff", "--no-ext-diff", "--name-only", hash, "--", "."])], {
+          cwd: directory,
+        })
+        if (result.code !== 0) {
+          log.warn("failed to get diff", { hash, exitCode: result.code })
+          return { hash, files: [] }
+        }
+        return {
+          hash,
+          files: result.text
+            .trim()
+            .split("\n")
+            .map((x) => x.trim())
+            .filter(Boolean)
+            .map((x) => path.join(worktree, x).replaceAll("\\", "/")),
+        }
+      })
+
+      const restore = Effect.fn("Snapshot.restore")(function* (snapshot: string) {
+        log.info("restore", { commit: snapshot })
+        const result = yield* git([...core, ...args(["read-tree", snapshot])], { cwd: worktree })
+        if (result.code === 0) {
+          const checkout = yield* git([...core, ...args(["checkout-index", "-a", "-f"])], { cwd: worktree })
+          if (checkout.code === 0) return
+          log.error("failed to restore snapshot", {
+            snapshot,
+            exitCode: checkout.code,
+            stderr: checkout.stderr,
+          })
+          return
+        }
+        log.error("failed to restore snapshot", {
+          snapshot,
+          exitCode: result.code,
+          stderr: result.stderr,
+        })
+      })
+
+      const revert = Effect.fn("Snapshot.revert")(function* (patches: Snapshot.Patch[]) {
+        const map = new Map(patches.flatMap((patch) => patch.files.map((file) => [file, patch] as const)))
+        const seen = new Set<string>()
+        for (const file of patches.flatMap((patch) => patch.files)) {
+          if (seen.has(file)) continue
+          const patch = map.get(file)
+          if (!patch) continue
+          log.info("reverting", { file, hash: patch.hash })
+          const result = yield* git([...core, ...args(["checkout", patch.hash, "--", file])], { cwd: worktree })
+          if (result.code !== 0) {
+            const rel = path.relative(worktree, file)
+            const tree = yield* git([...core, ...args(["ls-tree", patch.hash, "--", rel])], { cwd: worktree })
+            if (tree.code === 0 && tree.text.trim()) {
+              log.info("file existed in snapshot but checkout failed, keeping", { file })
+            } else {
+              log.info("file did not exist in snapshot, deleting", { file })
+              yield* remove(file)
+            }
+          }
+          seen.add(file)
+        }
+      })
+
+      const diff = Effect.fn("Snapshot.diff")(function* (hash: string) {
+        yield* add()
+        const result = yield* git([...quote, ...args(["diff", "--no-ext-diff", hash, "--", "."])], {
+          cwd: worktree,
+        })
+        if (result.code !== 0) {
+          log.warn("failed to get diff", {
+            hash,
+            exitCode: result.code,
+            stderr: result.stderr,
+          })
+          return ""
+        }
+        return result.text.trim()
+      })
+
+      const diffFull = Effect.fn("Snapshot.diffFull")(function* (from: string, to: string) {
+        const result: Snapshot.FileDiff[] = []
+        const status = new Map<string, "added" | "deleted" | "modified">()
+
+        const statuses = yield* git(
+          [...quote, ...args(["diff", "--no-ext-diff", "--name-status", "--no-renames", from, to, "--", "."])],
+          { cwd: directory },
+        )
+
+        for (const line of statuses.text.trim().split("\n")) {
+          if (!line) continue
+          const [code, file] = line.split("\t")
+          if (!code || !file) continue
+          status.set(file, code.startsWith("A") ? "added" : code.startsWith("D") ? "deleted" : "modified")
+        }
+
+        const numstat = yield* git(
+          [...quote, ...args(["diff", "--no-ext-diff", "--no-renames", "--numstat", from, to, "--", "."])],
+          {
+            cwd: directory,
+          },
+        )
+
+        for (const line of numstat.text.trim().split("\n")) {
+          if (!line) continue
+          const [adds, dels, file] = line.split("\t")
+          if (!file) continue
+          const binary = adds === "-" && dels === "-"
+          const [before, after] = binary
+            ? ["", ""]
+            : yield* Effect.all(
+                [
+                  git([...cfg, ...args(["show", `${from}:${file}`])]).pipe(Effect.map((item) => item.text)),
+                  git([...cfg, ...args(["show", `${to}:${file}`])]).pipe(Effect.map((item) => item.text)),
+                ],
+                { concurrency: 2 },
+              )
+          const additions = binary ? 0 : parseInt(adds)
+          const deletions = binary ? 0 : parseInt(dels)
+          result.push({
+            file,
+            before,
+            after,
+            additions: Number.isFinite(additions) ? additions : 0,
+            deletions: Number.isFinite(deletions) ? deletions : 0,
+            status: status.get(file) ?? "modified",
+          })
+        }
+
+        return result
+      })
+
+      yield* cleanup().pipe(
+        Effect.catchCause((cause) => {
+          log.error("cleanup loop failed", { cause: Cause.pretty(cause) })
+          return Effect.void
+        }),
+        Effect.repeat(Schedule.spaced(Duration.hours(1))),
+        Effect.delay(Duration.minutes(1)),
+        Effect.forkScoped,
+      )
+
+      return Service.of({ cleanup, track, patch, restore, revert, diff, diffFull })
+    }),
+  )
+
+  export const defaultLayer = layer.pipe(
+    Layer.provide(NodeChildProcessSpawner.layer),
+    Layer.provide(NodeFileSystem.layer),
+    Layer.provide(NodePath.layer),
+  )
 }
--- a/packages/opencode/src/tool/bash.ts
+++ b/packages/opencode/src/tool/bash.ts
@@ -15,7 +15,7 @@ import { Flag } from "@/flag/flag.ts"
 import { Shell } from "@/shell/shell"

 import { BashArity } from "@/permission/arity"
-import { Truncate } from "./truncation"
+import { Truncate } from "./truncate"
 import { Plugin } from "@/plugin"

 const MAX_METADATA_LENGTH = 30_000
--- a/packages/opencode/src/tool/edit.ts
+++ b/packages/opencode/src/tool/edit.ts
@@ -78,7 +78,7 @@ export const EditTool = Tool.define("edit", {
          file: filePath,
          event: existed ? "change" : "add",
        })
-        FileTime.read(ctx.sessionID, filePath)
+        await FileTime.read(ctx.sessionID, filePath)
        return
      }

@@ -119,7 +119,7 @@ export const EditTool = Tool.define("edit", {
      diff = trimDiff(
        createTwoFilesPatch(filePath, filePath, normalizeLineEndings(contentOld), normalizeLineEndings(contentNew)),
      )
-      FileTime.read(ctx.sessionID, filePath)
+      await FileTime.read(ctx.sessionID, filePath)
    })

    const filediff: Snapshot.FileDiff = {
--- a/packages/opencode/src/tool/read.ts
+++ b/packages/opencode/src/tool/read.ts
@@ -214,7 +214,7 @@ export const ReadTool = Tool.define("read", {

    // just warms the lsp client
    LSP.touchFile(filepath, false)
-    FileTime.read(ctx.sessionID, filepath)
+    await FileTime.read(ctx.sessionID, filepath)

    if (instructions.length > 0) {
      output += `\n\n<system-reminder>\n${instructions.map((i) => i.content).join("\n\n")}\n</system-reminder>`
--- a/packages/opencode/src/tool/registry.ts
+++ b/packages/opencode/src/tool/registry.ts
@@ -26,7 +26,7 @@ import { CodeSearchTool } from "./codesearch"
 import { Flag } from "@/flag/flag"
 import { Log } from "@/util/log"
 import { LspTool } from "./lsp"
-import { Truncate } from "./truncation"
+import { Truncate } from "./truncate"

 import { ApplyPatchTool } from "./apply_patch"
 import { Glob } from "../util/glob"
--- a/packages/opencode/src/tool/task.ts
+++ b/packages/opencode/src/tool/task.ts
@@ -10,7 +10,7 @@ import { SessionPrompt } from "../session/prompt"
 import { iife } from "@/util/iife"
 import { defer } from "@/util/defer"
 import { Config } from "../config/config"
-import { PermissionNext } from "@/permission/next"
+import { PermissionNext } from "@/permission"

 const parameters = z.object({
  description: z.string().describe("A short (3-5 words) description of the task"),
--- a/packages/opencode/src/tool/tool.ts
+++ b/packages/opencode/src/tool/tool.ts
@@ -1,9 +1,9 @@
 import z from "zod"
 import type { MessageV2 } from "../session/message-v2"
 import type { Agent } from "../agent/agent"
-import type { PermissionNext } from "../permission/next"
+import type { PermissionNext } from "../permission"
 import type { SessionID, MessageID } from "../session/schema"
-import { Truncate } from "./truncation"
+import { Truncate } from "./truncate"

 export namespace Tool {
  interface Metadata {
--- a/packages/opencode/src/tool/truncate-effect.ts
+++ b/packages/opencode/src/tool/truncate-effect.ts
@@ -0,0 +1,140 @@
+import { NodeFileSystem, NodePath } from "@effect/platform-node"
+import { Cause, Duration, Effect, FileSystem, Layer, Schedule, ServiceMap } from "effect"
+import path from "path"
+import type { Agent } from "../agent/agent"
+import { PermissionEffect } from "../permission/effect"
+import { Identifier } from "../id/id"
+import { Log } from "../util/log"
+import { ToolID } from "./schema"
+import { TRUNCATION_DIR } from "./truncation-dir"
+
+export namespace TruncateEffect {
+  const log = Log.create({ service: "truncation" })
+  const RETENTION = Duration.days(7)
+
+  export const MAX_LINES = 2000
+  export const MAX_BYTES = 50 * 1024
+  export const DIR = TRUNCATION_DIR
+  export const GLOB = path.join(TRUNCATION_DIR, "*")
+
+  export type Result = { content: string; truncated: false } | { content: string; truncated: true; outputPath: string }
+
+  export interface Options {
+    maxLines?: number
+    maxBytes?: number
+    direction?: "head" | "tail"
+  }
+
+  function hasTaskTool(agent?: Agent.Info) {
+    if (!agent?.permission) return false
+    return PermissionEffect.evaluate("task", "*", agent.permission).action !== "deny"
+  }
+
+  export interface Interface {
+    readonly cleanup: () => Effect.Effect<void>
+    /**
+     * Returns output unchanged when it fits within the limits, otherwise writes the full text
+     * to the truncation directory and returns a preview plus a hint to inspect the saved file.
+     */
+    readonly output: (text: string, options?: Options, agent?: Agent.Info) => Effect.Effect<Result>
+  }
+
+  export class Service extends ServiceMap.Service<Service, Interface>()("@opencode/Truncate") {}
+
+  export const layer = Layer.effect(
+    Service,
+    Effect.gen(function* () {
+      const fs = yield* FileSystem.FileSystem
+
+      const cleanup = Effect.fn("Truncate.cleanup")(function* () {
+        const cutoff = Identifier.timestamp(Identifier.create("tool", false, Date.now() - Duration.toMillis(RETENTION)))
+        const entries = yield* fs.readDirectory(TRUNCATION_DIR).pipe(
+          Effect.map((all) => all.filter((name) => name.startsWith("tool_"))),
+          Effect.catch(() => Effect.succeed([])),
+        )
+        for (const entry of entries) {
+          if (Identifier.timestamp(entry) >= cutoff) continue
+          yield* fs.remove(path.join(TRUNCATION_DIR, entry)).pipe(Effect.catch(() => Effect.void))
+        }
+      })
+
+      const output = Effect.fn("Truncate.output")(function* (
+        text: string,
+        options: Options = {},
+        agent?: Agent.Info,
+      ) {
+        const maxLines = options.maxLines ?? MAX_LINES
+        const maxBytes = options.maxBytes ?? MAX_BYTES
+        const direction = options.direction ?? "head"
+        const lines = text.split("\n")
+        const totalBytes = Buffer.byteLength(text, "utf-8")
+
+        if (lines.length <= maxLines && totalBytes <= maxBytes) {
+          return { content: text, truncated: false } as const
+        }
+
+        const out: string[] = []
+        let i = 0
+        let bytes = 0
+        let hitBytes = false
+
+        if (direction === "head") {
+          for (i = 0; i < lines.length && i < maxLines; i++) {
+            const size = Buffer.byteLength(lines[i], "utf-8") + (i > 0 ? 1 : 0)
+            if (bytes + size > maxBytes) {
+              hitBytes = true
+              break
+            }
+            out.push(lines[i])
+            bytes += size
+          }
+        } else {
+          for (i = lines.length - 1; i >= 0 && out.length < maxLines; i--) {
+            const size = Buffer.byteLength(lines[i], "utf-8") + (out.length > 0 ? 1 : 0)
+            if (bytes + size > maxBytes) {
+              hitBytes = true
+              break
+            }
+            out.unshift(lines[i])
+            bytes += size
+          }
+        }
+
+        const removed = hitBytes ? totalBytes - bytes : lines.length - out.length
+        const unit = hitBytes ? "bytes" : "lines"
+        const preview = out.join("\n")
+        const file = path.join(TRUNCATION_DIR, ToolID.ascending())
+
+        yield* fs.makeDirectory(TRUNCATION_DIR, { recursive: true }).pipe(Effect.orDie)
+        yield* fs.writeFileString(file, text).pipe(Effect.orDie)
+
+        const hint = hasTaskTool(agent)
+          ? `The tool call succeeded but the output was truncated. Full output saved to: ${file}\nUse the Task tool to have explore agent process this file with Grep and Read (with offset/limit). Do NOT read the full file yourself - delegate to save context.`
+          : `The tool call succeeded but the output was truncated. Full output saved to: ${file}\nUse Grep to search the full content or Read with offset/limit to view specific sections.`
+
+        return {
+          content:
+            direction === "head"
+              ? `${preview}\n\n...${removed} ${unit} truncated...\n\n${hint}`
+              : `...${removed} ${unit} truncated...\n\n${hint}\n\n${preview}`,
+          truncated: true,
+          outputPath: file,
+        } as const
+      })
+
+      yield* cleanup().pipe(
+        Effect.catchCause((cause) => {
+          log.error("truncation cleanup failed", { cause: Cause.pretty(cause) })
+          return Effect.void
+        }),
+        Effect.repeat(Schedule.spaced(Duration.hours(1))),
+        Effect.delay(Duration.minutes(1)),
+        Effect.forkScoped,
+      )
+
+      return Service.of({ cleanup, output })
+    }),
+  )
+
+  export const defaultLayer = layer.pipe(Layer.provide(NodeFileSystem.layer), Layer.provide(NodePath.layer))
+}
--- a/packages/opencode/src/tool/truncate.ts
+++ b/packages/opencode/src/tool/truncate.ts
@@ -0,0 +1,19 @@
+import type { Agent } from "../agent/agent"
+import { runtime } from "@/effect/runtime"
+import { TruncateEffect as S } from "./truncate-effect"
+
+
+export namespace Truncate {
+  export const MAX_LINES = S.MAX_LINES
+  export const MAX_BYTES = S.MAX_BYTES
+  export const DIR = S.DIR
+  export const GLOB = S.GLOB
+
+  export type Result = S.Result
+
+  export type Options = S.Options
+
+  export async function output(text: string, options: Options = {}, agent?: Agent.Info): Promise<Result> {
+    return runtime.runPromise(S.Service.use((s) => s.output(text, options, agent)))
+  }
+}
--- a/packages/opencode/src/tool/truncation-dir.ts
+++ b/packages/opencode/src/tool/truncation-dir.ts
@@ -0,0 +1,4 @@
+import path from "path"
+import { Global } from "../global"
+
+export const TRUNCATION_DIR = path.join(Global.Path.data, "tool-output")
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Kit Langton	b2fa76ff7f	refactor(effect): unify service namespaces for file, format, vcs, skill, snapshot Collapse the two-namespace pattern (e.g. File + FileService) into a single namespace per module: Interface, Service, layer, and defaultLayer all live on the domain namespace directly. Rename DiscoveryService → Discovery for consistency. Remove no-op init() methods and unnecessary defaultLayer = layer re-exports per EFFECT_MIGRATION_PLAN.md conventions.	2026-03-17 22:05:34 -04:00
Kit Langton	c687262c59	refactor(effect): move account auth question modules	2026-03-17 21:07:40 -04:00
Kit Langton	7acf429d28	refactor(format): remove unsafe formatter merge cast	2026-03-17 20:55:12 -04:00
Kit Langton	8e4af17a4b	refactor(effect): rename permission service namespace	2026-03-17 20:40:51 -04:00
Kit Langton	ba26993361	refactor(effect): align permission and truncate entrypoints	2026-03-17 20:35:00 -04:00
Kit Langton	52df7b8927	refactor(permission): move service under namespace	2026-03-17 20:21:15 -04:00
Kit Langton	105606e389	refactor(truncation): centralize output and effect test helpers	2026-03-17 19:53:55 -04:00
Kit Langton	50dd241967	Remove unused Instances.invalidate static method	2026-03-17 15:30:22 -04:00
Kit Langton	c3e10ab25b	Merge branch 'refactor/effectify-snapshot' into refactor/effectify-truncate	2026-03-17 14:54:05 -04:00
Kit Langton	50ab371846	fix(e2e): dispose managed runtime after seeding	2026-03-17 14:53:29 -04:00
Kit Langton	d2d8aaae22	refactor(truncation): effectify TruncateService, delete Scheduler - TruncateService as global Effect service on ManagedRuntime with FileSystem for cleanup (readDirectory + remove) - Hourly cleanup via Effect.forkScoped + Schedule.spaced - Split into truncate-service.ts (Effect) + truncation.ts (facade) to avoid circular import with runtime.ts - Shared TRUNCATION_DIR constant in truncation-dir.ts - Delete Scheduler module (no remaining consumers) - Remove Truncate.init() from bootstrap (cleanup starts automatically when runtime is created)	2026-03-17 10:09:34 -04:00
Kit Langton	ab89f84b0c	refactor(snapshot): effectify SnapshotService as scoped service Convert Snapshot from a promise-based namespace with Instance ALS reads to an Effect service on the Instances LayerMap. - SnapshotService with ChildProcessSpawner for git subprocess execution and Effect FileSystem for file operations (replaces Process.run and raw fs calls) - Nothrow git helper that always returns { code, text, stderr }, with spawn failure details preserved in stderr - Hourly cleanup via Effect.forkScoped + Schedule.spaced (replaces Scheduler.register) - Promise facade preserved for all existing callers - Parallelized before/after git show in diffFull - Add worktree to InstanceContext.Shape (needed for --work-tree flag) - Add Instance.current getter for single ALS read - Extract repeated git config flags into GIT_CORE/GIT_CFG/GIT_CFG_QUOTE constants - Platform layers (NodeChildProcessSpawner, NodeFileSystem, NodePath) provided directly on the service layer	2026-03-17 10:08:13 -04:00
Brendan Allan	0afeaea21f	app: inherit owner when creating prompt session	2026-03-17 19:47:06 +08:00
opencode-agent[bot]	b07b5a9b7f	chore: generate	2026-03-17 11:15:35 +00:00
Luke Parker	dbbe931a18	fix(app): avoid prompt tooltip Switch on startup (#17857 )	2026-03-17 06:14:30 -05:00
opencode-agent[bot]	e14e874e51	chore: generate	2026-03-17 03:47:33 +00:00
Kyle Altendorf	544315dff7	docs: add describe annotation to snapshot config field (#17861 ) Co-authored-by: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>	2026-03-16 22:46:09 -05:00
Aiden Cline	f13da808ff	chore: denounce ai spammer (#17901 )	2026-03-16 22:38:15 -05:00
Luke Parker	e416e59ea6	test(app): deflake slash terminal toggle flow (#17881 )	2026-03-17 12:55:58 +10:00
Luke Parker	cb69501098	test(opencode): deflake file and tool timing (#17859 )	2026-03-17 00:49:04 +00:00
Kyle Altendorf	a64f604d54	fix(tui): check for selected text instead of any selection in dialog escape handler (#16779 )	2026-03-17 10:25:03 +10:00
opencode-agent[bot]	d7093abf61	chore: update nix node_modules hashes	2026-03-17 00:05:19 +00:00
opencode-agent[bot]	60af447908	chore: update nix node_modules hashes	2026-03-16 23:54:30 +00:00
opencode-agent[bot]	1cdc558ac0	chore: generate	2026-03-16 23:52:10 +00:00
Kit Langton	3849822769	refactor(skill): effectify SkillService as scoped service (#17849 )	2026-03-16 23:51:07 +00:00
AbigailJixiangyuyu	e9a17e4480	fix(windows): restore /editor support on Windows (#17146 )	2026-03-17 08:11:02 +10:00
Aiden Cline	68809365df	fix: github copilot enterprise integration (#17847 )	2026-03-16 17:05:14 -05:00
opencode-agent[bot]	8da511dfa8	chore: generate	2026-03-16 20:19:50 +00:00
Kit Langton	69381f6aea	refactor(file): effectify FileService as scoped service (#17845 )	2026-03-16 16:18:39 -04:00
opencode-agent[bot]	df6508530f	chore: generate	2026-03-16 19:59:49 +00:00
Kit Langton	335356280c	refactor(format): effectify FormatService as scoped service (#17675 )	2026-03-16 15:58:36 -04:00
opencode-agent[bot]	03d84f49c2	chore: generate	2026-03-16 18:24:21 +00:00
Kit Langton	2cbdf04ec9	refactor(file-time): effectify FileTimeService with Semaphore locks (#17835 )	2026-03-16 18:23:13 +00:00
opencode-agent[bot]	410fbd8a00	chore: generate	2026-03-16 18:00:18 +00:00
Kit Langton	e5cbecf17c	fix+refactor(vcs): fix HEAD filter bug and effectify VcsService (#17829 )	2026-03-16 13:59:11 -04:00
opencode-agent[bot]	ca3af5dc6a	chore: generate	2026-03-16 17:19:44 +00:00
Kit Langton	9e740d9947	stack: effectify-file-watcher-service (#17827 )	2026-03-16 13:18:40 -04:00
opencode-agent[bot]	d4694d058c	chore: generate	2026-03-16 16:56:12 +00:00
Kit Langton	469c3a4204	refactor(instance): move scoped services to LayerMap (#17544 )	2026-03-16 12:55:14 -04:00
DS	4cb29967f6	fix(opencode): apply message transforms during compaction (#17823 )	2026-03-16 11:32:53 -05:00
Johannes Loher	e718db624f	fix(core): consider code: context_length_exceeded as context overflow in API call errors (#17748 )	2026-03-16 10:25:24 -05:00
Michal Šlesár	15b27e0d18	fix(app): agent switch should not reset thinking level (#17470 )	2026-03-16 19:43:29 +05:30
Kit Langton	c523aac586	fix(cli): scope active org labels to the active account (#16957 )	2026-03-16 10:01:42 -04:00
Shoubhit Dash	51fcd04a70	Wrap question option descriptions instead of truncating (#17782 )	2026-03-16 11:29:18 +00:00
Luke Parker	4d7cbdcbef	fix(ci): workaround by using hoisted Bun linker on Windows (#17751 )	2026-03-16 08:39:06 +00:00
Luke Parker	59c530cc6c	fix(opencode): teach Kit's test what an ID is (#17745 )	2026-03-16 18:08:27 +10:00
Jason Quense	c2ca1494e5	fix(opencode): preserve prompt tool enables with empty agent permissions (#17064 ) Co-authored-by: jquense <jquense@ramp.com>	2026-03-15 23:01:46 -05:00
opencode	4ee426ba54	release: v1.2.27	2026-03-16 02:33:48 +00:00
Aiden Cline	510374207d	fix: vcs watcher if statement (#17673 )	2026-03-15 19:20:39 -05:00
Erik Engervall	aedbecedf7	docs: Add opencode-firecrawl to ecosystem documentation (#17672 )	2026-03-15 18:56:24 -05:00
Frank	9c00669927	zen: update claude prices	2026-03-15 10:54:40 -04:00
David Hill	b9f6b40e3a	tweak(ui): remove open label (#17512 )	2026-03-15 08:25:40 -05:00
Orlando Ascanio	ad06d8f496	docs(es): fix Spanish intro page translation, grammar, and terminology (#17563 )	2026-03-15 08:22:32 -05:00
Kit Langton	2fc06c5a17	chore(permission): delete legacy permission module (#17534 )	2026-03-14 20:56:52 -05:00
Kit Langton	52877d8765	fix(question): clean up pending entry on abort (#17533 )	2026-03-15 00:49:49 +00:00
Sebastian	8f957b8f90	remove sighup exit (#17254 )	2026-03-15 00:52:28 +01:00
opencode-agent[bot]	0befa1e57e	chore: generate	2026-03-14 18:29:06 +00:00
Kit Langton	f015154314	refactor(permission): effectify PermissionNext + fix InstanceState ALS bug (#17511 )	2026-03-14 18:28:00 +00:00
Shoubhit Dash	689d9e14ea	fix(app): handle multiline web paste in prompt composer (#17509 )	2026-03-14 22:51:45 +05:30
Kit Langton	66e8c57ed1	refactor(schema): inline branded ID schemas (#17504 )	2026-03-14 16:14:46 +00:00
opencode-agent[bot]	b698f14e55	chore: generate	2026-03-14 15:59:01 +00:00
Kit Langton	cec1255b36	refactor(question): effectify QuestionService (#17432 )	2026-03-14 11:58:00 -04:00
Aiden Cline	88226f3061	tweak: ensure that compaction message is tracked as agent initiated (#17431 )	2026-03-14 10:46:24 -05:00
James Long	8c53b2b470	fix(core): increase default chunk timeout from 2 min to 5 min (#17490 )	2026-03-14 14:27:06 +00:00
Marcus Schiesser	f2d3a4c70f	fix(ui): prevent long filenames from overlapping actions (#17151 )	2026-03-13 16:17:15 -05:00
Michael Dwan	4b9b86b544	fix(opencode): lost sessions across worktrees and orphan branches (#16389 ) Co-authored-by: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>	2026-03-13 15:51:55 -04:00
David Hill	f54abe58cf	tui: update compaction status message to use Session instead of History across all languages The compaction message now correctly indicates the current session was compacted rather than the entire history, making it clearer to users which conversation data was optimized.	2026-03-13 16:33:01 +00:00