isolation-worktree-never-for-production-subagents

Agent tool’s isolation:worktree parameter creates a temporary git worktree; all writes go to that isolated copy and return as a diff that the orchestrator must manually re-apply. For production work where subagents should directly modify the live codebase, omit isolation:worktree entirely. Reserve worktree mode only for experimental branches where you explicitly want a clean test baseline with no live-tree side effects.