Pi Heartbeat Extension
Runs a periodic health-check prompt as an isolated subprocess.
Setup
- •
Enable via
--heartbeatflag,/heartbeat on, or settings.json:json{ "pi-heartbeat": { "enabled": true, "intervalMinutes": 15 } } - •
Create a
HEARTBEAT.mdin your project root with check items:markdown# Heartbeat Checklist - [ ] Check git status — any uncommitted changes? - [ ] Check disk space — anything over 90%? - [ ] Review td list for blocked tasks
- •
If the agent responds with
HEARTBEAT_OK, the result is suppressed. Any other response is treated as an alert and sent via pi-channels.
Configuration (settings.json)
json
{
"pi-heartbeat": {
"enabled": false,
"intervalMinutes": 15,
"activeHours": { "start": "08:00", "end": "22:00" },
"route": "ops",
"showOk": false,
"prompt": null
}
}
- •enabled: Start heartbeat on session start
- •intervalMinutes: Check frequency (default: 15)
- •activeHours: Only run during these hours (null = always)
- •route: pi-channels route for alerts (default: "ops")
- •showOk: Also send HEARTBEAT_OK results to the channel
- •prompt: Custom prompt (overrides HEARTBEAT.md)
Commands
- •
/heartbeat on— Start periodic checks - •
/heartbeat off— Stop checks - •
/heartbeat status— Show run stats - •
/heartbeat run— Run a check immediately
Events
- •
heartbeat:check— Emitted when a check starts - •
heartbeat:result— Emitted with{ ok, response, durationMs }