chronova-pi-plugin

Chronova heartbeat tracking extension for oh-my-pi.

Automatically sends coding activity heartbeats to your Chronova dashboard via chronova-cli — a drop-in replacement for wakatime-cli.

Features

• Automatic tracking — Monitors read, edit, write, and ast_edit tool results from oh-my-pi
• AI line changes — Reports net AI-written lines (--ai-line-changes) for edit and write operations
• Rate limiting — 1 heartbeat per minute per project, persisted to disk across restarts
• Force flush on exit — All pending changes are flushed when the session shuts down
• Fire-and-forget — Heartbeat invocations never block the agent loop

Prerequisites

• oh-my-pi (pi-coding-agent v15+)
• chronova-cli installed at ~/.local/bin/chronova-cli
• A Chronova account with API key configured in ~/.chronova.cfg

Installation

omp plugin install @chronova/pi-plugin

Configuration

The plugin reads the API key from ~/.chronova.cfg automatically (same as chronova-cli). No separate configuration is needed.

Debug Logging

Set CHRONOVA_PI_DEBUG=1 or add debug = true to ~/.chronova.cfg to enable verbose logging to ~/.chronova-pi-plugin/plugin.log.

How It Works

1. On session_start, the plugin records the project directory
2. On tool_result events, it extracts file paths and line changes:
   • read → tracked as view (no line changes)
   • edit → diff parsed for additions/deletions
   • write → tracked as write operation
   • ast_edit → tracked from fileReplacements count
3. When the rate limit allows (1/min/project), pending changes are flushed to chronova-cli
4. On session_shutdown, all remaining changes are force-flushed

chronova-cli Arguments

chronova-cli \
  --entity <absolute-file-path> \
  --entity-type file \
  --project-folder <project-directory> \
  --plugin "oh-my-pi/<omp-version> chronova-pi-plugin/<plugin-version>" \
  --category "ai coding" \
  --write \                        # for write operations
  --ai-line-changes <net-lines>    # additions - deletions

Project Structure

src/
  index.ts      Extension factory: registers event handlers on ExtensionAPI
  heartbeat.ts  chronova-cli invocation (fire-and-forget via execFile)
  tracker.ts    File-change extraction from tool_result events
  state.ts      Per-project rate-limit state (persisted to disk)
  logger.ts     Debug logger writing to ~/.chronova-pi-plugin/plugin.log

License

MIT © NX Solutions UG