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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 v2.1.19 Home All releases olderv2.1.18 v2.1.20newer
Claude Code v2.1.19

Improved ToolSearch Documentation

What

Enhanced ToolSearch tool documentation with clearer usage patterns.

Details
  • Clarifies that keyword search loads tools immediately (no need for follow-up select: calls)
  • Adds new +keyword syntax for required matches (e.g., +slack send only returns slack tools)
  • Includes anti-patterns showing what NOT to do
  • Better explains that both query modes (keyword and select) load tools equally
Evidence

V47 at line 268991 (contains "keyword search already loaded", "Required keyword")

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

See this entry in the whole of v2.1.19 →