{"version":"2.1.257","anchor":"new-tengu-tool-schema-sizes-telemetry-event-with-dedup-cac","canonical_anchor":"new-tengu-tool-schema-sizes-telemetry-event-with-dedup-cac","heading":"New tengu_tool_schema_sizes telemetry event with dedup cache","tier":"internal","area":"Telemetry","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.257\/e\/new-tengu-tool-schema-sizes-telemetry-event-with-dedup-cac","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.257","markdown":"### New `tengu_tool_schema_sizes` telemetry event with dedup cache\n\nA new event breaks down tool schema sizes by category, deduplicated and capped at 512 hashes.\n\nAPI-success telemetry now emits a separate `tengu_tool_schema_sizes` event that breaks down tool schema character lengths by category (`static`, `mcp_tool`, `skill_tool`, `other`), deduplicated and capped at 512 distinct hashes. The existing `tengu_api_success` event also gains a new `requestPrefixTelemetry` block.\n\n- Area: Telemetry\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 2\/5"}