## Summary This PR centralizes model-visible state diffing for turn context updates into one module, while keeping existing behavior and call sites stable. ### What changed - Added `core/src/context_updates.rs` with the consolidated diffing logic for: - environment context updates - permissions/policy updates - collaboration mode updates - model-instruction switch updates - personality updates - Added `BuildSettingsUpdateItemsParams` so required dependencies are passed explicitly. - Updated `Session::build_settings_update_items` in `core/src/codex.rs` to delegate to the centralized module. - Reused the same centralized `personality_message_for` helper from initial-context assembly to avoid duplicated logic. - Registered the new module in `core/src/lib.rs`. ## Why This is a minimal, shippable step toward the model-visible-state design: all state diff decisions for turn-context update items now live in one place, improving reviewability and reducing drift risk without expanding scope. ## Behavior - Intended to be behavior-preserving. - No protocol/schema changes. - No call-site behavior changes beyond routing through the new centralized logic. ## Testing Ran targeted tests in this worktree: - `cargo test -p codex-core build_settings_update_items_emits_environment_item_for_network_changes` - `cargo test -p codex-core collaboration_instructions --test all` Both passed. ## Codex author `codex resume 019c540f-3951-7352-a3fa-6f07b834d4ce` |
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| codex-rs | ||
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| .codespellignore | ||
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| .markdownlint-cli2.yaml | ||
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| AGENTS.md | ||
| announcement_tip.toml | ||
| BUILD.bazel | ||
| CHANGELOG.md | ||
| cliff.toml | ||
| defs.bzl | ||
| flake.lock | ||
| flake.nix | ||
| justfile | ||
| LICENSE | ||
| MODULE.bazel | ||
| MODULE.bazel.lock | ||
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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, 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.