ToolSearch Multi-Select / Claude Code v2.1.64

The ToolSearch tool now supports comma-separated tool names for loading multiple tools in a single call (e.g., select:Read,Edit,Grep), reducing the number of round-trips needed to load tools.

Evidence

ToolSearch docs (search for "select:Read,Edit,Grep")

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

See this entry in the whole of v2.1.64 →

The build it came inv2.1.64

3 Mar 2026 · 30 entries, this one is #21.

Either side of it

v2.1.63Older
v2.1.66Newer

Open the release →

Names in this entry

toolToolSearch
Browser automation now loads the tab-closing tool up front, so Claude can tidy tabs without another lookup.
toolRead
Files covered by a Read deny rule can no longer be written, not just edited.
toolEdit
Edit, Write and NotebookEdit approval previews withhold the diff when the change is too large or the file can't be read
toolGrep
The built-in claude-api agent lost Read, Grep and Glob and now only has WebFetch scoped to one docs domain.

Is this right?

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