Abhinav
5c20513a1b
# Why `PreToolUse`, `PostToolUse`, and `updatedInput` coverage for local function tools currently depends on each handler remembering to wire up the hook contract itself. That makes coverage easy to miss as new function tools are added, even though most of them share the same basic shape: a model-facing function call with JSON arguments. # What This makes `CoreToolRuntime` provide the default hook contract for ordinary local function tools: - build generic `PreToolUse` and `PostToolUse` payloads from the function tool name and arguments - apply `updatedInput` rewrites back into function-tool arguments through the same default path - let tool outputs override the post-hook input or response when they have a more stable hook-facing contract The exceptions stay explicit: - hosted tools remain outside the generic local function path - code-mode `wait` and `write_stdin` opt out for now - `PostToolUse` feedback replaces only the model-visible response, so code mode keeps its typed tool result With the generic path in place, the MCP and extension-tool adapters no longer need their own duplicate pre/post hook plumbing. The new coverage exercises the registry default plus end-to-end local function behavior for pre-hook blocking, `updatedInput` rewriting, and post-hook context.
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.