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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.238 ·

More internal model calls marked as machine-driven

Behind-the-scenes classifier calls for artifact reactions are now tagged as machine calls, not your turns.

Under the hood Internal Changes
JSON All of v2.1.238
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
Internal ChangesKind: in v2.1.238,
Internal ChangesSection of the release
What

The marker that tags a model call as mechanical rather than a user turn now also covers the classifier and triage calls behind artifact auto-reactions and replies. All of these already ran with thinking disabled; the marker only separates them from real user turns.

Evidence

thinkingConfig: { type: "disabled", mechanical: !0 },

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.238 →

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