## Why The skills extension needs a real turn-time path before host, executor, or remote skills can be routed through it. The previous code was mostly a placeholder catalog/provider sketch, so there was no bounded available-skills fragment, no source-owned `SKILL.md` read, and no place for warnings or per-turn selection state to live. This PR makes `ext/skills` the authority-preserving flow for listing candidate skills and injecting only explicitly selected main prompts, without adding more of that logic to `codex-core`. ## What changed - Expands catalog entries with `main_prompt`, display path, short description, dependency metadata, enabled/prompt visibility flags, and authority/package-aware read requests. - Replaces the placeholder `providers/*` modules with `SkillProviderSource` and `SkillProviders`, routing list/read/search calls by source kind and surfacing provider failures as warnings. - Adds bounded available-skills rendering and `SKILL.md` main-prompt truncation before the fragments enter model context. - Resolves explicit skill selections from structured `UserInput::Skill`, skill-file mentions, `skill://...` paths, and plain `$skill` text mentions, then reads selected prompts through their owning provider. - Stores mutable per-thread skills config and per-turn catalog/selection/warning state. - Adds `install_with_providers` so tests and future host wiring can supply concrete providers. ## Testing - Not run locally. - Added `codex-rs/ext/skills/tests/skills_extension.rs` coverage for available-catalog injection, selected prompt injection through the owning provider, and prompt-hidden skills that remain invokable.
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
Run the following on Mac or Linux to install Codex CLI:
curl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
# 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.
