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Reading a new release v2.1.251 Analysing changes · 2/5 Deeper second pass · 4/5 agents 427 findings $12.75 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.21 Home All releases olderv2.1.20 v2.1.22newer
Claude Code v2.1.21

Enhanced PermissionRequest Hook Error Messages

When a PermissionRequest hook denies an action, the error message now defaults to a clearer system message if the hook doesn't provide one.

Details
  • Default message: "Permission denied by PermissionRequest hook"
  • Helps debug which hook is blocking an operation
  • Part of the plugin hook system for security controls
Evidence

Line 579288 (hook denial, X.message || "Permission denied by PermissionRequest hook")

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

See this entry in the whole of v2.1.21 →