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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.281 ·

disallowedTools forwarded in session spec

Session launch settings now pass on the list of tools that are not allowed, along with permission mode, effort and model

Entry
JSON All of v2.1.281
EntryKind: in v2.1.281,
ChangesSection of the release
What

When Claude Code builds the settings for starting a session, it now includes disallowedTools, the list of tools Claude may not use. It already included permissionMode, effort and model.

Why

Tools you have blocked are now carried into sessions started this way instead of being left out.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding does not say which kinds of session this launch builder is used for.

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