{"version":"2.1.251","anchor":"extra-eligibility-check-before-isolating-a-teammate-in-a-wor","canonical_anchor":"extra-eligibility-check-before-isolating-a-teammate-in-a-wor","heading":"Extra eligibility check before isolating a teammate in a worktree","tier":"internal","area":"Agents","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.251\/e\/extra-eligibility-check-before-isolating-a-teammate-in-a-wor","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.251","markdown":"### Extra eligibility check before isolating a teammate in a worktree\n\nA new check decides whether a teammate agent is offered its own git worktree.\n\n**What**\n\nBefore falling back to running a teammate agent in its own git worktree, Claude Code now consults an eligibility helper first and only then takes a new fallback path. The existing refusal, that in-process teammates cannot spawn background agents, is unchanged; what is new is a gate deciding whether worktree isolation is offered at all.\n\n**Details**\n\n- The helper is the renamed successor of the previous check, and what makes a session eligible is decided inside it rather than at this call site.\n\n**Evidence**\n\n`In-process teammates cannot spawn background agents`\n\n- Area: Agents\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 3\/5"}