ruflo-migrations plugin contract — pinning, namespace-routing fix, namespace coordination, smoke as contract

Context

ruflo-migrations (v0.1.0) — schema migration generator + validator. 1 agent + 2 skills + 1 command.

Same namespace-routing bug class as ruflo-cost-tracker / ruflo-market-data: both skills called agentdb_hierarchical-* and agentdb_pattern-store with namespace arguments, but those tool families route by tier / ReasoningBank and ignore namespace strings.

Decision

1. Functional fix: switch namespaced reads/writes from agentdb_hierarchical-* to memory_* (namespace-routed) in both skills. Document the dual pattern-store path (typed via ReasoningBank vs namespace-routable via memory_store).
2. Add this ADR (Proposed).
3. README augment: Compatibility (pin v3.6); Namespace coordination (claims migrations); Verification + Architecture Decisions sections.
4. Bump 0.1.0 → 0.2.0. Keywords add mcp, dry-run, up-down-pairs.
5. scripts/smoke.sh — 10 structural checks: version + keywords; both skills + agent + command; skills use memory_* not hierarchical-* with namespace; v3.6 pin; namespace coordination; migrations namespace claimed; ADR Proposed; no wildcard tools.

Consequences

Positive: real bugs fixed (silent ignored-namespace writes/reads). Plugin joins the cadence.

Negative: none — anyone scripting against the broken tool calls was already silently failing.

Verification

bash plugins/ruflo-migrations/scripts/smoke.sh
# Expected: "10 passed, 0 failed"

Related

• plugins/ruflo-cost-tracker/docs/adrs/0001-cost-tracker-contract.md — same bug class
• plugins/ruflo-market-data/docs/adrs/0001-market-data-contract.md — same bug class
• plugins/ruflo-agentdb/docs/adrs/0001-agentdb-optimization.md — namespace convention this fix observes