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.

docs/adr/ADR-002-customer-supplier-boundary.md

@@ -0,0 +1,62 @@
+---
+id: ADR-002
+title: Customer–Supplier Engagement Boundary
+status: accepted
+date: "2026-06-18"
+---
+
+# ADR-002 — Customer–Supplier Engagement Boundary
+
+## Status
+
+Accepted
+
+## Context
+
+Coulomb hired kaizen-agentic as a **supplier** of agents and improvement
+expertise. Agents must improve Coulomb's fleet without becoming part of Coulomb's
+application codebases or the supplier's product repo.
+
+## Decision
+
+### coulomb-loop (customer) owns
+
+- Engagement INTENT, SCOPE, workplans, decisions
+- Loop rosters (`loops/*/roster.yaml`)
+- ActivityDefinition **copies** tuned for Coulomb cadence
+- Loop health records and cadence state (`loops/*/cadence.yml`, `health.jsonl`)
+- state-hub progress events for the engagement
+
+### kaizen-agentic (supplier) owns
+
+- Agent markdown definitions (`agents/agent-*.md`)
+- CLI (`schedule`, `metrics`, `memory`, `validate`)
+- ADRs for memory, metrics, scheduled execution (ADR-002–005)
+- ActivityDefinition **reference** templates
+- Customer-repo bootstrap playbook (KAIZEN-WP-0008)
+
+### Target repos (fleet) hold runtime state
+
+- `.kaizen/schedule.yml` — opt-in per repo
+- `.kaizen/agents/<name>/memory.md` — project-scoped agent memory
+- `.kaizen/metrics/<name>/` — execution metrics
+
+### Shared operators (not owned by either repo)
+
+| System | Role |
+|--------|------|
+| activity-core | Cron/event → task creation |
+| state-hub | Fleet roster, workstream index |
+| reuse-surface | Capability registry CLI and federation |
+
+## Consequences
+
+- No agent definitions are copied into `coulomb-loop`
+- No scheduling runtime code in `coulomb-loop`
+- Supplier improvements flow back via KAIZEN-WP-0008, not by merging into coulomb-loop
+- Customer may fork ActivityDefinitions without waiting for supplier release
+
+## Related
+
+- `INTENT.md`
+- `docs/adr/ADR-003-cadence-ramp-policy.md`