{"version":"2.1.296","anchor":"request-log-chain-hashing-cache-control-only-on-marked-mess","canonical_anchor":"request-log-chain-hashing-cache-control-only-on-marked-mess","heading":"API request log records caching marks more efficiently","tier":"internal","area":"API Requests","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.296\/e\/request-log-chain-hashing-cache-control-only-on-marked-mess","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.296","markdown":"### API request log records caching marks more efficiently\n\nThe internal log of API requests now fingerprints each message once and records caching marks only on messages that have them\n\n**What**\n\nClaude Code can keep a log of the requests it sends to the API. It now makes a fingerprint of each message on its own and keeps its text, records caching marks only for the messages that carry them, and reuses that stored text when building the fingerprint for the whole request. Before, it processed the whole list of messages at once.\n\n**Why**\n\nThis is probably a speed improvement for this request logging.\n\n- Area: API Requests\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 0\/5\n- Scope: individual\n- Heads-up: no"}