{"version":"2.1.273","anchor":"new-http-headers-report-tool-call-durations-and-compaction-s","canonical_anchor":"new-http-headers-report-tool-call-durations-and-compaction-s","heading":"New HTTP headers report tool-call durations and compaction state on bridge requests","tier":"internal","area":"Remote Control","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.273\/e\/new-http-headers-report-tool-call-durations-and-compaction-s","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.273","markdown":"### New HTTP headers report tool-call durations and compaction state on bridge requests\n\nNew HTTP headers report recent tool-call durations and compaction status on bridge requests\n\n**What**\n\nClaude Code now sends three new HTTP headers on some requests: `x-claude-code-compaction`, `x-claude-code-context-compacted`, and `x-claude-code-prev-tool-durations`. The last one carries a compact, size-limited list of recent tool names and how long each took to run. These headers are only attached when the connection is related to a Remote Control bridge session.\n\n**Why**\n\nThis lets the server side of a bridge connection see timing and compaction (conversation-history trimming) information about the session without the client having to be asked for it separately.\n\n- Area: Remote Control\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 2\/5"}