Source Intelligence

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 v2.1.91 Home All releases olderv2.1.90 v2.1.92newer
Claude Code v2.1.91

Relative File Paths in Tool Descriptions [Gradual Rollout]

What

When enabled, tool descriptions instruct Claude to use relative (cwd-based) file paths instead of absolute paths, and the Bash tool description notes that cd does not persist between calls.

Status

Feature-flagged via tengu_relpath_gh7k (default: false)

Details
  • Read tool description changes from "must be an absolute path" to "can be relative to cwd (preferred for brevity) or absolute"
  • Bash tool adds: "Avoid cd unless the User explicitly requests it. The shell already starts in cwd"
  • Read tool adds ONLY include with offset to read a specific slice. OMIT to read the whole file
Evidence

Relative path tool descriptions (gated by tengu_relpath_gh7k, search for "The file_path parameter can be relative to cwd")

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

See this entry in the whole of v2.1.91 →