1ce722ed2e
## Summary - Tightens Plan Mode to encourage exploration-first behavior and more back-and-forth alignment. - Adds a required TL;DR checkpoint before drafting the full plan. - Clarifies client behavior that can cause premature “Implement this plan?” prompts. ## What changed - Require at least one targeted non-mutating exploration pass before the first user question. - Insert a TL;DR checkpoint between Phase 2 (intent) and Phase 3 (implementation). - TL;DR checkpoint guidance: - Label: “Proposed Plan (TL;DR)” - Format: 3–5 bullets using `- ` - Options: exactly one option, “Approve” - `isOther: true`, with explicit guidance that “None of the above” is the edit path in the current UI. - Require the final plan to include a TL;DR consistent with the approved checkpoint. ## Why - In Plan Mode, any normal assistant message at turn completion is treated as plan content by the client. This can trigger premature “Implement this plan?” prompts. - The TL;DR checkpoint aligns on direction before Codex drafts a long, decision-complete plan. ## Testing - Manual: built the local CLI and verified the flow now explores first, presents a TL;DR checkpoint, and only drafts the full plan after approval. --------- Co-authored-by: Nick Baumann <@openai.com>
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 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, Team, 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.