{"version":"2.1.248","anchor":"agent-tool-tells-subagents-when-the-model-choice-is-ignored","canonical_anchor":"agent-tool-tells-subagents-when-the-model-choice-is-ignored","heading":"Agent tool tells subagents when the model choice is ignored","tier":"use","area":"Subagents","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.248\/e\/agent-tool-tells-subagents-when-the-model-choice-is-ignored","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.248","markdown":"### Agent tool tells subagents when the model choice is ignored\n\nIn coordinator sessions the Agent tool now says when its model choice will be ignored.\n\n**What**\n\nIn coordinator sessions the Agent tool's `model` parameter description is built at runtime: with `CLAUDE_CODE_COORDINATOR_FORCE_WORKER_INHERIT_MODEL` set, it tells the model the parameter is ignored and must not be set; otherwise it warns to set it only when the user explicitly asks. Outside coordinator sessions nothing is appended.\n\n**Evidence**\n\n`CLAUDE_CODE_COORDINATOR_FORCE_WORKER_INHERIT_MODEL`\n\n- Area: Subagents\n- Names: `CLAUDE_CODE_COORDINATOR_FORCE_WORKER_INHERIT_MODEL`\n- Tier: Use it now\n- Useful: 2\/5\n- Signal: 3\/5"}