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stack/docs/tess/M5-MIGRATION-ROLLBACK.md
jason.woltje d077183554
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docs(tess): remediate M5 qualification findings (#750)
2026-07-13 19:59:38 +00:00

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# TESS-MIG-001 — Rollback Procedure
Rollback is configuration/binding reversal, not a database rollback: no Hermes schema migration or automatic data import is implemented by the landed adapter.
1. Stop sending new traffic to the Mosaic Hermes adapter by reverting the external runtime/channel binding through its authorized deployment process.
2. Keep the gateway registration and core contracts unchanged unless a reviewed code rollback is required; `AgentRuntimeProviderRegistry` registration is explicit and non-replacing (`packages/agent/src/runtime-provider-registry.ts`).
3. Do not replay an unsupported Kanban, skills, memory, tools, or cron operation. The transitional matrix is intentionally fail-closed.
4. Preserve Mosaic audit, session, and operator-memory records under their normal scoped retention rules; do not copy them into Hermes as a rollback shortcut.
5. For an in-flight coordination request, use the owned handoff observation/result flow in `InteractionCoordinationService` (`apps/gateway/src/coord/interaction-coordination.service.ts`); do not create a second orchestrator path.
6. Capture the binding reversal, affected scope, correlation IDs, and reason in the approved operational record before retrying a cutover.