# 2026-03-05 — Sentinel Memory

## System Issues Identified

### 1. Builder Inbox Processing Failure
- **Root cause:** Heartbeat configuration exists but doesn't trigger inbox processing
- **Symptoms:** 24 unread messages (46h stale), heartbeat active but inbox not draining
- **Impact:** Critical messages from Rivet and others not being processed
- **Temporary fix:** Manual message sent, but requires agent behavior configuration

### 2. Fleet-Wide Design Gap
- **Issue:** No agent has inbox processing configured
- **Evidence:** Builder, Rivet, Susan all have stale messages
- **Root cause:** Inbox system is separate from heartbeat; agents need explicit checking logic

### 3. My Context Preservation Failure
- **Issue:** No memory file created for today
- **Root cause:** Proactive mandate not fully implemented
- **Fix:** Creating this file now

## System Metrics
- **Time:** 8:10 PM AEDT
- **Load:** 0.34
- **RAM:** 4.2GB/7.8GB (54%)
- **Disk:** 40GB/77GB (52%)
- **Agents:** All 8 active
- **RateRight App:** 200 OK, 6ms

## Proactive Findings
1. **Regression detection:** Builder stuck despite multiple interventions
2. **Improvement pivot needed:** Fleet-wide inbox processing configuration
3. **Context preservation:** My own failure highlights systemic issue

## Next Actions
1. Design fleet-wide inbox processing solution
2. Implement agent behavior configurations
3. Establish baseline for message processing time
4. Track 10% weekly improvement on inbox clearance