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## Why Code mode only used nested spec lookup at execution time to rediscover whether a nested tool should be invoked as a function tool or a freeform tool. That information is already present in the enabled tool metadata that code mode builds to expose `tools.*` and `ALL_TOOLS`, so re-looking it up from the router was redundant and kept execution coupled to a separate spec lookup path. ## What Changed - thread `CodeModeToolKind` through the code-mode runtime `ToolCall` event and `CodeModeNestedToolCall` - emit the nested tool kind directly from the V8 callback using the already-enabled tool metadata - build nested tool payloads from the propagated kind instead of calling `find_spec` - remove the now-unused `find_spec` plumbing from the router and parallel runtime helpers - add unit coverage for function vs freeform payload shaping and update affected router tests ## Testing - `cargo test -p codex-code-mode` - `cargo test -p codex-core code_mode::tests` - `cargo test -p codex-core extension_tool_bundles_are_model_visible_and_dispatchable` - `cargo test -p codex-core model_visible_specs_filter_deferred_dynamic_tools`
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.