{"version":"2.1.323","anchor":"tool-search-sent-tool-entry-lookup-and-deferred-tool-handli","canonical_anchor":"tool-search-sent-tool-entry-lookup-and-deferred-tool-handli","heading":"Tool search can look up tools it already sent and leave out the default tool","tier":"internal","area":"Tool Search","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.323\/e\/tool-search-sent-tool-entry-lookup-and-deferred-tool-handli","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.323","markdown":"### Tool search can look up tools it already sent and leave out the default tool\n\nClaude Code can now look up a tool description it already sent by name, and leaves out the default tool when a requested one is included\n\n**Unclear.** What this changes for someone using Claude Code is not stated.\n\n**What**\n\nClaude Code can now look up, by name, a tool description it has already sent to Claude. A tool is an action Claude can take. When a requested tool is among the ones being included, Claude Code now leaves out the default tool, and it can narrow the list to only the names asked for.\n\n**Why**\n\nThis points to changes in how deferred tools are loaded. Deferred tools are ones Claude sees only by name until it loads them.\n\n- Area: Tool Search\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}