## Why Hosted skills introduced by #27388 use opaque `skill://` resource identifiers, but the skills catalog rendered every locator as a `file` and told the model that every skill body lived on disk. That can send the model toward filesystem tools for a resource that must instead be read through its owning authority. The catalog should describe how each source is accessed without changing the underlying discovery or invocation behavior. ## What changed - Render host skills as `file`, executor-owned skills as `environment resource`, orchestrator-owned skills as `orchestrator resource`, and custom-provider skills as `custom resource`. - Update the shared no-alias guidance to describe source locators rather than assuming every skill is stored on the host filesystem. - Direct orchestrator resources through `skills.list` and `skills.read`, and explicitly tell the model not to treat `skill://` identifiers as filesystem paths. - Preserve the existing filesystem and alias behavior for local skills. ## Scope This PR changes only model-visible catalog rendering and guidance. It does not change skill discovery, selection, prompt injection, provider routing, catalog caching or refresh behavior, resource validation, or the `skills.*` tool contract. ## Verification - Extended skills-extension coverage for host-file and executor-resource labels. - Extended the no-executor app-server flow to assert orchestrator-resource wording and non-filesystem guidance.
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.
