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I need to return only a JSON object with winner, ratio, and explanation.\n{\"winner\": \"B\", \"ratio\": \"3:2\", \"explanation\": \"Side B fixes concrete feed bugs (timestamp collisions, private-room leakage, revoked-anchor access) with durable ingest-order anchoring and permission-aware filtering; Side A is a large architectural cleanup (split canonical_path/identity, wire-format changes 20+ files) that improves clarity but introduces format churn across CLI/server. B's precise correctness fix beats A's broader design work.","reasoning_details":[{"type":"reasoning.summary","summary":"The user wants me to compare two commits and decide which contributed more lasting value to the project. I need to return only a JSON object with winner, ratio, and explanation.\n{\"winner\": \"B\", \"ratio\": \"3:2\", \"explanation\": \"Side B fixes concrete feed bugs (timestamp collisions, private-room leakage, revoked-anchor access) with durable ingest-order anchoring and permission-aware filtering; Side A is a large architectural cleanup (split canonical_path/identity, wire-format changes 20+ files) that improves clarity but introduces format churn across CLI/server. B's precise correctness fix beats A's broader design 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