Celia Chen
0db6811b7c
## Why `openai.gpt-5.4-cmb` is served through the Amazon Bedrock provider, whose request validator currently accepts `function` and `mcp` tool specs but rejects Responses `custom` tools. The CMB catalog entry reuses the bundled `gpt-5.4` metadata, which marks `apply_patch_tool_type` as `freeform`. That causes Codex to include an `apply_patch` tool with `type: "custom"`, so even heavily disabled sessions can fail before the model runs with: ```text Invalid tools: unknown variant `custom`, expected `function` or `mcp` ``` This is provider-specific: the model should still expose `apply_patch`, but for Bedrock it needs to use the JSON/function tool shape instead of the freeform/custom shape. ## What Changed - Override the `openai.gpt-5.4-cmb` static catalog entry to set `apply_patch_tool_type` to `function` after inheriting the rest of the `gpt-5.4` model metadata. - Update the catalog test expectation so the CMB entry continues to track `gpt-5.4` metadata except for this Bedrock-specific tool shape override. ## Verification - `cargo test -p codex-model-provider` - `just fix -p codex-model-provider`
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.