{"version":"2.1.293","anchor":"startup-system-prompt-timing-detail-removed","canonical_anchor":"startup-system-prompt-timing-detail-removed","heading":"Startup timing data no longer breaks down how the system prompt was built","tier":"internal","area":"Telemetry","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.293\/e\/startup-system-prompt-timing-detail-removed","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.293","markdown":"### Startup timing data no longer breaks down how the system prompt was built\n\nClaude Code's startup timing records no longer include the detailed breakdown of how long building the system prompt took\n\n**What**\n\nWhen Claude Code starts, it records how long each stage of startup takes. The system prompt is the set of standing instructions Claude receives before your first message. For the stage that builds it, Claude Code no longer records the extra breakdown, such as which part was slowest and how much processor time it used.\n\n**Why**\n\nThis trims the timing data Claude Code collects about its own startup.\n\n- Area: Telemetry\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 0\/5\n- Scope: individual\n- Heads-up: no"}