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 v2.1.246 Home All releases ←olderv2.1.245 v2.1.247newer→
Claude Code v2.1.246

Write skips the diff for very large files

You'll notice
Useful3 Signal1
File Tools

Writing over a very large file skips diff computation, so it no longer stalls.

What

Writing over a very large file no longer computes or returns a full structured patch. The tool returns an empty patch and no original file contents, skips the extra git-diff work done in cloud sessions, and passes the raw old and new text straight to the diff-metrics call.

Details
  • The size threshold is a fixed build constant, not a setting.
  • The skipped cloud-session work is the step reported as tengu_tool_use_diff_computed.
Evidence

tengu_tool_use_diff_computed

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 v2.1.246 →