{"version":"2.1.251","anchor":"worktree-creation-fails-fast-in-the-plugin-evaluation-harnes","canonical_anchor":"worktree-creation-fails-fast-in-the-plugin-evaluation-harnes","heading":"Worktree creation fails fast in the plugin evaluation harness","tier":"internal","area":"Elsewhere","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.251\/e\/worktree-creation-fails-fast-in-the-plugin-evaluation-harnes","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.251","markdown":"### Worktree creation fails fast in the plugin evaluation harness\n\nWorktree creation fails immediately in the plugin evaluation harness with a clear message.\n\n**What**\n\nCreating a session worktree or an agent worktree now checks for the confined-evaluation variable first and throws immediately instead of trying, with the message `worktree isolation is unavailable in this session (plugin evaluation harness)`.\n\n**Details**\n\n- Both worktree creation entry points share the same guard.\n\n**Evidence**\n\n`worktree isolation is unavailable in this session (plugin evaluation harness)`\n\n- Area: Elsewhere\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5"}