{"version":"2.1.284","anchor":"new-startup-timing-metric-spare-claim-module-wait-ms","canonical_anchor":"new-startup-timing-metric-spare-claim-module-wait-ms","heading":"Startup now measures how long it waits before taking a spare process","tier":"internal","area":"Startup","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.284\/e\/new-startup-timing-metric-spare-claim-module-wait-ms","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.284","markdown":"### Startup now measures how long it waits before taking a spare process\n\nClaude Code now records how long startup waits for code to load before it takes over a ready-made spare process\n\n**What**\n\nClaude Code now records a timing measurement, `spare_claim_module_wait_ms`, for how long startup waits for parts of its code to load before it takes over a spare process that was started ahead of time. Nothing you see changes.\n\n**Why**\n\nThis is usage data only, most likely used to tune how those pre-started processes work.\n\n- Area: Startup\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5"}