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+# GitHub CI Scripts `ci/github-script/`
+
+> **Location**: `ci/github-script/`  
+> **Platform**: GitHub Actions (`actions/github-script`)  
+> **Purpose**: PR automation and validation
+> **Latest Version**: 0.0.5-1
+
+---
+
+## Overview
+
+This directory contains JavaScript code for GitHub Actions automation using [`actions/github-script`](https://github.com/actions/github-script). These scripts automate various workflow tasks.
+
+---
+
+## Features
+
+| Feature | Description |
+|---------|-------------|
+| PR validation | Check PR requirements |
+| Auto-labeling | Apply labels based on changes |
+| Commit checking | Validate commit messages |
+| Reviewer assignment | Auto-assign reviewers |
+| Branch management | Merge queue handling |
+
+---
+
+## Scripts
+
+| Script | Purpose |
+|--------|---------|
+| `bot.js` | Main bot logic for PR automation |
+| `commits.js` | Commit message validation |
+| `merge.js` | Merge queue handling |
+| `prepare.js` | PR preparation checks |
+| `reviewers.js` | Automatic reviewer assignment |
+| `reviews.js` | Review status checking |
+| `withRateLimit.js` | GitHub API rate limiting |
+
+---
+
+## Local Development
+
+### Prerequisites
+
+- Node.js 18+
+- `gh` CLI (authenticated)
+
+### Setup
+
+```bash
+cd ci/github-script
+npm install
+```
+
+### Running Scripts
+
+```bash
+# Check commits in a PR
+./run commits Project-Tick ProjT-Launcher 123
+
+# Check labels
+./run labels Project-Tick ProjT-Launcher
+```
+
+---
+
+## Environment Variables
+
+| Variable | Description |
+|----------|-------------|
+| `GITHUB_TOKEN` | GitHub API token |
+| `GITHUB_REPOSITORY` | Repository (`owner/repo`) |
+
+---
+
+## Integration
+
+These scripts are called from workflows in `.github/workflows/`:
+
+```yaml
+- uses: actions/github-script@v7
+  with:
+    script: |
+      const script = require('./ci/github-script/commits.js');
+      await script({ github, context, core });
+```
+
+---
+
+## Related Documentation
+
+- [Workflows](./workflows.md) — CI overview
+- [Bot](./bot.md) — Cloudflare Worker bot
+- [CI Support](./ci_support.md) — Support files