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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v0.2.90 ·

Tool Permission System

Entry
JSON All of v0.2.90
EntryKind: in v0.2.90,
ChangesSection of the release

A new permission prompt system has been introduced for tool usage, providing better control over what actions Claude can perform.

Key components:

  • Tools can now prompt for permission before execution
  • Two permission behaviors: allow (with optional input modifications) or deny (with explanation)
  • Permission decisions are tracked with detailed reasoning

Example interaction: When Claude attempts to use a tool that requires permission, you'll see a prompt asking whether to allow the action. You can:

  • Allow the tool to proceed (optionally with modified parameters)
  • Deny the tool with a reason

See this entry in the whole of v0.2.90 →

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