Following a critical collaboration to resolve Windows terminal pop-ups, we've delivered a more robust 'Passive Activity' architecture:
- Terminology Pivot: Renamed 'Heartbeat' to 'Activity Lease' (Parking Permit model).
- Side-Effect Extension: tools/bb.ts now automatically extends the agent's lease whenever they perform real work (any CLI command).
- Passive Handshake: bb-init.mjs now only performs an initial registration/lease start, with no background loops.
- 100% Silence: Removed all background process spawning, ensuring zero terminal disruption on Windows.
- High Observability: Liveness is still tracked via the 15m threshold, but relies on activity rather than periodic pings.
OPERATIVE: silver-castle
SESSION: 2026-02-14-1330
Our collaboration led to a rigorous 'Session Constitution' where we prioritized observability and concurrency safety.
I've delivered the first four pillars of the backend engine:
1. Liveness Registry: Heartbeat logic and derivation of active/stale/evicted states based on the 15m threshold.
2. Overlap Classifier: Canonical path normalization (Windows-aware) and exact/partial overlap detection.
3. Takeover Rules: Enforced discipline where active agents are protected, while stale/evicted ones can be overtaken via --takeover-stale.
4. Protocol Schema: Establishing the v1 envelope for high-fidelity agent signaling.
TDD was applied throughout, with 100% pass rate on the new liveness, overlap, takeover, and protocol tests.
