**Summary**
This change introduces a new startup check that notifies users if a
newer `@openai/codex` version is available. To avoid spamming, it writes
a small state file recording the last check time and will only re‑check
once every 24 hours.
**What’s Changed**
- **New file** `src/utils/check-updates.ts`
- Runs `npm outdated --global @openai/codex`
- Reads/writes `codex-state.json` under `CONFIG_DIR`
- Limits checks to once per day (`UPDATE_CHECK_FREQUENCY = 24h`)
- Uses `boxen` for a styled alert and `which` to locate the npm binary
- **Hooked into** `src/cli.tsx` entrypoint:
```ts
import { checkForUpdates } from "./utils/check-updates";
// …
// after loading config
await checkForUpdates().catch();
```
- **Dependencies**
- Added `boxen@^8.0.1`, `which@^5.0.0`, `@types/which@^3.0.4`
- **Tests**
- Vitest suite under `tests/check-updates.test.ts`
- Snapshot in `__snapshots__/check-updates.test.ts.snap`
**Motivation**
Addresses issue #244. Users running a stale global install will now see
a friendly reminder—at most once per day—to upgrade and enjoy the latest
features.
**Test Plan**
- `getNPMCommandPath()` resolves npm correctly
- `checkOutdated()` parses `npm outdated` JSON
- State file prevents repeat alerts within 24h
- Boxen snapshot matches expected output
- No console output when state indicates a recent check
**Related Issue**
try resolves#244
**Preview**
Prompt a pnpm‑style alert when outdated

Let me know if you’d tweak any of the messaging, throttle frequency,
placement in the startup flow, or anything else.
---------
Co-authored-by: Thibault Sottiaux <tibo@openai.com>
Probably not the most exciting PR you’ll get today, but I noticed that
every file in the repo follows kebab-case… except one brave little
underscore in `cli_singlepass.tsx`.
So I made the world a little more consistent. Just a filename rename —
no logic changes, no semicolons harmed
Didn’t touch any code, I promise. Just bringing order to the filesystem
— one hyphen at a time.
This adds support for a new flag, `-w,--writable-root`, that can be
specified multiple times to _amend_ the list of folders that should be
configured as "writable roots" by the sandbox used in `full-auto` mode.
Values that are passed as relative paths will be resolved to absolute
paths.
Incidentally, this required updating a number of the `agent*.test.ts`
files: it feels like some of the setup logic across those tests could be
consolidated.
In my testing, it seems that this might be slightly out of distribution
for the model, as I had to explicitly tell it to run `apply_patch` and
that it had the permissions to write those files (initially, it just
showed me a diff and told me to apply it myself). Nevertheless, I think
this is a good starting point.
Why
---
Improves the usability of the `codex` CLI by adding shell completion for
file paths. This allows users to quickly complete file arguments using
tab completion in bash, zsh, and fish shells. Enable via `eval "$(codex
completion <shell>)"`.