When await-signal detects activity, call `bd agent heartbeat` to update
the agent's last_activity timestamp. This enables witnesses to accurately
detect agent liveness and prevents false "agent unresponsive" alerts.
Previously, await-signal only managed the idle:N label but never updated
last_activity, causing it to remain NULL for all agents.
Fixes#773
Key fix: Orphan cleanup now skips Claude processes in valid Gas Town
tmux sessions (gt-*/hq-*), preventing false kills of witnesses,
refineries, and deacon during startup.
Updated all component versions:
- gt CLI: 0.3.1 → 0.4.0
- npm package: 0.3.0 → 0.4.0
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add mol-backoff-test formula for integration testing exponential backoff
with short intervals (2s base, 10s max) to observe multiple cycles quickly.
Fix await-signal to use --since 1s when subscribing to activity feed.
Without this, historical events would immediately wake the signal,
preventing proper timeout and backoff behavior.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Layer 1: Implements gt agent state command for managing agent bead labels:
- gt agent state <bead> - Get all state labels
- gt agent state <bead> --set idle=0 - Set label value
- gt agent state <bead> --incr idle - Increment numeric label
- gt agent state <bead> --del idle - Delete label
Layer 2: Fixes await-signal iteration tracking:
- Adds --agent-bead flag to read/write idle:N label
- Implements exponential backoff: base * mult^idle_cycles
- Auto-increments idle counter on timeout
- Returns idle_cycles in result for caller to reset on signal
This enables patrol agents to back off during quiet periods while staying
responsive to signals. Part of epic gt-srm3y.
(gt-srm3y)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements the primary wake mechanism for patrol agents:
- Subscribes to bd activity --follow as a background process
- Returns immediately when any line of output is received
- Timeout with optional exponential backoff as safety net
- JSON output mode for scripting
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
