## Why `codex-tools` is meant to hold reusable tool primitives, but `ToolsConfig` had become a second copy of core runtime decisions instead of a small shared contract. It carried provider capabilities, auth/model gates, permission and environment state, web/search/image feature gates, multi-agent settings, and goal availability from core into `codex-tools` ([definition](22dd9ad392/codex-rs/tools/src/tool_config.rs (L97)), [stored on each `TurnContext`](22dd9ad392/codex-rs/core/src/session/turn_context.rs (L87))). Every session/context variant then had to build and mutate that snapshot before assembling tools. This PR removes that master object instead of renaming it. Tool planning now reads the live `TurnContext`, where `codex-core` already owns those decisions, while `codex-tools` keeps only reusable primitives and a generic `ToolSetBuilder`/`ToolSet` accumulator. ## What Changed - Removed `ToolsConfig` / `ToolsConfigParams` from `codex-tools`; the crate keeps the shared helpers that still belong there, including request-user-input mode selection, shell backend/type resolution, `UnifiedExecShellMode`, and `ToolEnvironmentMode`. - Replaced config-snapshot planning with `ToolRouter::from_turn_context` and a `spec_plan` pipeline over `CoreToolPlanContext`, deriving provider capabilities, auth gates, model support, feature gates, environment count, goal support, multi-agent options, web search, and image generation from the authoritative turn state. - Added generic `codex_tools::ToolSetBuilder` / `ToolSet`, plus the small core adapter needed to accumulate `CoreToolRuntime` values and hosted model specs. - Added the `tool_family::shell` registration module and moved shell/unified-exec/memory accounting call sites to read the narrow per-turn fields directly. - Narrowed `TurnContext` to the remaining explicit per-turn fields needed by planning: `available_models`, `unified_exec_shell_mode`, and `goal_tools_supported`. - Reworked MCP exposure and tool-search setup so deferred/direct MCP behavior is driven by the current turn rather than a precomputed config snapshot. - Replaced the large expected-spec fixture tests with focused behavior-level coverage for shell tools, environments, goal and agent-job gates, MCP direct/deferred exposure, tool search, request-plugin-install, code mode, multi-agent mode, hosted tools, and extension executor dispatch. ## Verification - `cargo check -p codex-tools` - `cargo check -p codex-core --lib` - `cargo test -p codex-tools` - `cargo test -p codex-core spec_plan --lib` - `cargo test -p codex-core router --lib`
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.
