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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.281 ·

Attachment telemetry payload builder with token estimates

Telemetry about attachments now includes attachment types, estimated token counts and where the request came from

Under the hood Internal Changes
JSON All of v2.1.281
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.281,
Internal ChangesSection of the release
What

A new helper fills in the usage data Claude Code sends back to Anthropic about attachments. It adds these fields:

  • attachment_types
  • attachment_token_estimates, rough sizes in tokens (the units Claude reads text in)
  • skill_listing_is_full
  • query_source
Why

This changes what is recorded about attachments, not how they behave.

See this entry in the whole of v2.1.281 →

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