{"version":"2.1.229","anchor":"auto-mode-side-queries-always-send-the-billing-attribution-h","canonical_anchor":"auto-mode-side-queries-always-send-the-billing-attribution-h","heading":"Auto-mode side queries always send the billing attribution header","tier":"internal","area":"Telemetry","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.229\/e\/auto-mode-side-queries-always-send-the-billing-attribution-h","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.229","markdown":"### Auto-mode side queries always send the billing attribution header\n\nAuto-mode's side queries send billing attribution metadata even if you set the opt-out variable.\n\n**What**\n\nThe auto-mode classifier, the two-stage classifier and the critique query now force the billing attribution system block to be sent even when the opt-out environment variable is set. It carries version, entrypoint and workload metadata, not conversation content, and is only sent on the first-party API and never over a unix socket.\n\n**Evidence**\n\n`forceAttributionHeader`\n\n- Area: Telemetry\n- Names: `CLAUDE_CODE_ATTRIBUTION_HEADER`\n- Tier: Under the hood\n- Useful: 3\/5\n- Signal: 4\/5"}