codex-wakatime

WakaTime integration for OpenAI Codex CLI. Track AI coding activity and time spent.

Tip

Also check out opencode-wakatime for OpenCode!

Features

• Automatic time tracking for Codex CLI sessions
• File-level activity detection via message parsing
• 60-second heartbeat rate limiting
• Automatic WakaTime CLI installation and updates
• Cross-platform support (macOS, Linux, Windows)

Prerequisites

1. WakaTime account and API key
2. WakaTime API key configured in ~/.wakatime.cfg:

   [settings]
   api_key = your-api-key-here

3. Codex CLI installed

Installation

# Install the package
npm install -g codex-wakatime

# Configure Codex hooks
codex-wakatime --install

This adds Stop and PostToolUse hooks to your ~/.codex/config.toml. If an older notify = ["codex-wakatime"] entry exists, it is migrated to hooks. Other notify commands are preserved.

How It Works

┌─────────────────────────────────────────────────────────────┐
│                     Codex CLI Session                        │
└─────────────────────────┬───────────────────────────────────┘
                          │
                          ▼
┌─────────────────────────────────────────────────────────────┐
│              Stop / PostToolUse hooks                        │
│   Codex sends hook payloads with:                             │
│   - session-id, turn-id                                      │
│   - cwd (working directory)                                  │
│   - last-assistant-message on Stop                           │
│   - apply_patch input on PostToolUse                         │
└─────────────────────────┬───────────────────────────────────┘
                          │
                          ▼
┌─────────────────────────────────────────────────────────────┐
│                   codex-wakatime                             │
│   1. Parse hook JSON from stdin                              │
│   2. Extract file paths from apply_patch or assistant text   │
│   3. Check 60-second rate limit                              │
│   4. Send heartbeat(s) to WakaTime                           │
└─────────────────────────┬───────────────────────────────────┘
                          │
                          ▼
┌─────────────────────────────────────────────────────────────┐
│                   WakaTime Dashboard                         │
│   View your AI coding metrics at wakatime.com                │
└─────────────────────────────────────────────────────────────┘

Codex Hooks

Event	Purpose
Stop	Sends a turn-level heartbeat after each Codex turn completes
PostToolUse (apply_patch)	Sends file-level write heartbeats for patch edits

Legacy agent-turn-complete notify payloads are still supported for existing manual setups.

File Detection Patterns

The plugin extracts edited files directly from apply_patch hook payloads. For turn-level fallback heartbeats, it extracts file paths from the assistant's response using these patterns:

• Code block headers: ```typescript:src/index.ts
• Backtick paths: `src/file.ts`
• Action patterns: Created src/file.ts, Modified package.json
• Quoted paths: "src/file.ts" or 'src/file.ts'

If no files are detected, a project-level heartbeat is sent using the working directory.

Configuration

The plugin auto-configures ~/.codex/config.toml on installation:

[[hooks.Stop]]
[[hooks.Stop.hooks]]
type = "command"
command = "codex-wakatime --hook"
timeout = 60

[[hooks.PostToolUse]]
matcher = "apply_patch"
[[hooks.PostToolUse.hooks]]
type = "command"
command = "codex-wakatime --hook"
timeout = 60

Debug Mode

Enable debug logging by adding to ~/.wakatime.cfg:

[settings]
debug = true

Logs are written to ~/.wakatime/codex.log.

Files & Locations

File	Purpose
~/.wakatime/codex.json	Rate limiting state
~/.wakatime/codex.log	Debug logs
~/.wakatime/codex-cli-state.json	CLI version tracking
~/.codex/config.toml	Codex configuration
~/.wakatime.cfg	WakaTime API key and settings

Development

# Clone the repository
git clone https://github.com/angristan/codex-wakatime
cd codex-wakatime

# Install dependencies
npm install

# Build
npm run build

# Run tests
npm test

# Type check
npm run typecheck

# Lint
npm run check

Project Structure

codex-wakatime/
├── src/
│   ├── index.ts          # Main entry point
│   ├── install.ts        # Hook installation
│   ├── extractor.ts      # File path extraction
│   ├── wakatime.ts       # CLI invocation
│   ├── dependencies.ts   # CLI management
│   ├── state.ts          # Rate limiting
│   ├── logger.ts         # Logging
│   ├── options.ts        # Config parsing
│   ├── types.ts          # TypeScript interfaces
│   └── __tests__/        # Test files
├── package.json
├── tsconfig.json
└── biome.json

Uninstall

# Remove the notification hook
codex-wakatime --uninstall

# Uninstall the package
npm uninstall -g codex-wakatime

Commands

Command	Description
codex-wakatime --install	Add Codex hooks to Codex config
codex-wakatime --uninstall	Remove Codex hooks from Codex config
codex-wakatime --hook	Process a Codex hook payload from stdin
codex-wakatime '{"type":"agent-turn-complete",...}'	Process a notification (called by Codex)

Troubleshooting

No heartbeats being sent

1. Check that your API key is configured in ~/.wakatime.cfg
2. Verify the Codex hooks are set in ~/.codex/config.toml
3. Enable debug mode and check ~/.wakatime/codex.log

Rate limiting

Heartbeats are rate-limited to once per 60 seconds. If you're testing, wait at least 60 seconds between Codex turns.

CLI not found

The plugin automatically downloads wakatime-cli if not found. If this fails:

1. Check your internet connection
2. Manually install: https://github.com/wakatime/wakatime-cli/releases
3. Ensure wakatime-cli is in your PATH

License

MIT