{"version":"2.1.281","anchor":"attachment-telemetry-payload-builder-with-token-estimates","canonical_anchor":"attachment-telemetry-payload-builder-with-token-estimates","heading":"Attachment telemetry payload builder with token estimates","tier":null,"area":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.281\/e\/attachment-telemetry-payload-builder-with-token-estimates","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.281","markdown":"### Attachment telemetry payload builder with token estimates\n\nTelemetry about attachments now includes attachment types, estimated token counts and where the request came from\n\n**What**\n\nA new helper fills in the usage data Claude Code sends back to Anthropic about attachments. It adds these fields:\n\n- `attachment_types`\n\n- `attachment_token_estimates`, rough sizes in tokens (the units Claude reads text in)\n\n- `skill_listing_is_full`\n\n- `query_source`\n\n**Why**\n\nThis changes what is recorded about attachments, not how they behave."}