reverse-skills-max: initial public release (restored, redacted, hardened)

reverse-skill-repo/CTF-Sandbox-Orchestrator/competition-race-condition-state-drift/references/race-condition-state-drift.md

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+# Race Condition State Drift Checklist
+
+## First Pass
+
+- Mutable rows, cache keys, counters, files, queue payloads
+- Read-check-write boundaries, lock scope, retry behavior, idempotency handling
+- Worker delays, commit timing, stale reads, invalidation timing
+
+## Chain To Reconstruct
+
+1. Baseline ordering established
+2. Concurrent or reordered flow injected
+3. Check or lock boundary is bypassed
+4. Conflicting state mutation lands
+5. Decisive drift is reproduced
+
+## Evidence To Keep Together
+
+- State side: key or row, initial value, final value, commit boundaries
+- Timing side: request order, delays, retries, queue timing
+- Effect side: duplicated action, privilege drift, balance drift, stale authorization
+
+## Common Pitfalls
+
+- Running noisy stress tests without a minimal deterministic sequence
+- Mixing several mutable keys without proving which key drives the effect
+- Reporting timing sensitivity without final-state parity proof