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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

Claude Code v2.1.273 ·

Unverified-tool-call warning now checks argument schema, not just call history

Warning about calling untested connector tools from an Artifact page now tells Claude to check the tool's argument schema too

Under the hood Internal Changes
JSON All of v2.1.273
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
Internal ChangesKind: in v2.1.273,
Internal ChangesSection of the release
What

When an Artifact page calls a connector tool that hasn't had a successful call observed during the current session, Claude Code shows a warning about that. The warning message now adds a new instruction: check the page's argument names against each tool's input schema, if the session has access to that tool, and treat the result fields the page reads as unverified unless a real, safe call can confirm them.

Why

This gives Claude a concrete way to partially verify an untested tool call, by checking argument names against the schema, rather than treating every unverified call the same way.

See this entry in the whole of v2.1.273 →

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