{"version":"2.1.323","anchor":"the-toolsearch-tool-description-was-rewritten","canonical_anchor":"the-toolsearch-tool-description-was-rewritten","heading":"The tool search instructions Claude Code sends were reworded","tier":"internal","area":"Tool Search","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.323\/e\/the-toolsearch-tool-description-was-rewritten","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.323","markdown":"### The tool search instructions Claude Code sends were reworded\n\nClaude Code reworded the ToolSearch tool's description in the instructions it sends to Claude\n\n**What**\n\nSome tools are held back and only listed by name until Claude needs them. Claude uses the ToolSearch tool to look them up. ToolSearch takes a query, matches it against the held-back tools, and returns each matching tool's full definition so Claude can use it. The wording of this tool's description, as Claude Code sends it to Claude, was edited in this release.\n\n**Why**\n\nChanging Claude's instructions can change how it behaves. Here the description still explains the same lookup step.\n\n- Area: Tool Search\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 0\/5\n- Scope: individual\n- Heads-up: no"}