{"version":"2.1.318","anchor":"tengu-deferred-tool-schema-not-sent-event","canonical_anchor":"tengu-deferred-tool-schema-not-sent-event","heading":"Changed diagnostic for tools called before the model saw their description","tier":"internal","area":"Tool Search","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.318\/e\/tengu-deferred-tool-schema-not-sent-event","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.318","markdown":"### Changed diagnostic for tools called before the model saw their description\n\nClaude Code's diagnostic for a deferred tool being called before its description was sent to the model has been changed\n\n**What**\n\nSome tools are deferred, which means their full description is only sent to the model when needed. Claude Code logs a diagnostic when such a tool is called before its description was sent, and that diagnostic has been modified in this release.\n\n**Why**\n\nIt helps track down problems with how deferred tools are loaded.\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"}