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Owen Lin
812cd2bb57
## Description This PR makes `thread.history_mode` immutable after the thread's canonical first `SessionMeta` has been written. Later same-thread `SessionMeta` lines are compatibility metadata writes, not a new thread definition. Without this, an older binary could append a `SessionMeta` that omits `history_mode`; when a newer binary replays it, serde defaults that missing field to `legacy` and SQLite could downgrade a paginated thread. ## Why `history_mode` is the persisted thread storage contract. Paginated-thread fail-closed behavior and SQLite memory filtering depend on it staying aligned with canonical rollout metadata, especially when multiple Codex binary versions can touch the same local rollout. ## What changed - Stop generic rollout metadata replay from overwriting `history_mode` from later `SessionMeta` items. - Remove `history_mode` from `ThreadMetadataPatch`, so mutable metadata sync and app-server metadata updates cannot rewrite it. - When local metadata sync has to recreate a missing SQLite row, recover `history_mode` from the rollout's canonical first `SessionMeta` instead of from a mutable patch. - Keep the in-memory thread store using the created thread's canonical `history_mode` instead of metadata patches. - Fill the one remaining core test `CreateThreadParams` initializer with the new `history_mode` field; Bazel CI caught this after the parent history-mode PR landed. ## Validation - `just fmt` - `just test -p codex-thread-store` - `just test -p codex-state session_meta_does_not_set_model_or_reasoning_effort`
812cd2bb57
·
2026-06-26 12:32:31 -07:00
7,892 Commits
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.