- Add MCP tool — lightweight connectivity check returning server
identity, no DB hit (resolves agent connection-test friction)
- Tighten 6 tool descriptions (get_relations, get_health_summary,
query_metrics, get_trend, get_event_timeline, ping) to be searchable
in the first 8-12 words
- Document Hermes MCP client setup in ADR-0012 with token security caveat
- Move completed plan to plans/done/