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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
HomeReleasesv2.1.305entry #189

Claude Code v2.1.305 ·

An unused value was dropped from tool descriptions

An internal value no longer goes into tool descriptions, and the prompt the model sees is unchanged

Under the hood Internal Changes
JSON All of v2.1.305
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ToolsArea: what it touches
Internal ChangesKind: in v2.1.305,
Internal ChangesSection of the release
What

Claude Code no longer works out or passes along one internal value when building tool descriptions. The prompt the model receives is the same as before.

Why

This is internal cleanup with no visible effect.

See this entry in the whole of v2.1.305 →

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