Bootstrap coulomb-loop engagement: governance, loops, and activity definitions.

Register with state-hub, accept DEC-001–004 and ADR-004 rotation policy, scaffold
pilot roster, hourly ActivityDefinition copies, and bootstrap log after schedule
init on three custodian pilot repos.

activity-definitions/hourly-metrics-health-sweep.md

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+---
+id: coulomb-hourly-metrics-health-sweep
+name: Hourly Metrics Health Sweep (coulomb-loop bootstrap)
+enabled: false
+owner: coulomb-loop
+governance: coulomb_social
+status: proposed
+trigger:
+  type: cron
+  cron_expression: "45 * * * *"
+  timezone: Europe/Berlin
+  misfire_policy: skip
+context_sources:
+  - type: shell
+    query: discover_kaizen_projects
+    params:
+      marker: .kaizen/metrics
+      roster: /home/worsch/coulomb-loop/loops/kaizen-stack/roster.yaml
+    bind_to: context.projects
+---
+
+# Hourly Metrics Health Sweep
+
+Bootstrap fallback per DEC-002 option A until `kaizen.metrics.recorded` events ship.
+
+```rule
+id: flag-low-success-hourly
+for_each: context.projects
+bind_as: p
+condition: 'p.summary.success_rate < 0.8 and p.summary.execution_count >= 5'
+action:
+  task_template: "Review {{p.agent}} success rate on {{p.repo}}"
+  description: |
+    Agent metrics below threshold on {{p.repo}}.
+    kaizen-agentic metrics show <agent>
+    kaizen-agentic metrics optimize <agent>
+    Load agents/agent-optimization.md for review.
+  target_repo: "{{p.repo}}"
+  priority: high
+  labels: ["kaizen", "quality-escalation", "coulomb-loop", "bootstrap"]
+```