Source Intelligence
Follow Discord

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 v2.1.248 Home All releases ←olderv2.1.247 v2.1.250newer→
Claude Code v2.1.248

Read-before-write guard relaxed for remotely served calls

You'll notice
Useful3 Signal2
File Editing

Remotely served edits are less likely to be blocked by the read-before-write rule.

What

The rule that a file must be read before it is written or edited now treats calls served remotely as a separate case instead of always consulting the permission mode, so those calls are less likely to be blocked. Write's input validation also drops an async precheck that returned error code 15.

Details
  • Both tengu_write_tool_not_read_hypothetical and tengu_edit_tool_not_read_hypothetical gain a servedCall field recording whether the call came in remotely.
  • The guard computes that up front and folds it into the decision to skip.
  • Applies unconditionally, with no flag.
Evidence

tengu_write_tool_not_read_hypothetical, tengu_edit_tool_not_read_hypothetical

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.248 →