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Master plan and five locked sub-design docs covering the API parity work: - mollifier-api-parity.md — endpoint inventory, invariant, phased TDD plan. - mollifier-listing-design.md (Q1) — ZSET buffer, compound cursor, no banner. - mollifier-replay-design.md (Q2) — single code path, PG-or-buffer resolution. - mollifier-mutation-race-design.md (Q3) — wait-and-bounce with safety net. - mollifier-cancel-design.md (Q4) — mark_cancelled + drainer bifurcation. - mollifier-idempotency-design.md (Q5) — keys in both stores symmetrically. Plus the original phase-3 plan it builds on and the bash parity script that surfaced the gaps and acts as the regression guard during implementation. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>