v0.12.0

[0.12.0] - 2026-03-31

Added

• Added git worktree isolation for parallel execution via worktree: true. Applies to top-level parallel tasks, chain steps with { parallel: [...] }, and async/background chain execution. Each parallel task gets its own temporary git worktree, and the aggregated output now includes per-task diff stats plus the directory path containing full patch files.
• Added worktree.ts to manage worktree lifecycle, diff capture, patch generation, and cleanup for isolated parallel runs.
• Added count: N shorthand for top-level parallel tasks and chain parallel entries so one authored task can expand into repeated identical runs without manual duplication.
• Added subagent_status({ action: "list" }) to list active async runs with flattened step/member status summaries.
• Added /subagents-status, a read-only overlay for active async runs plus recent completed/failed runs with per-run step details. The overlay auto-refreshes while open and preserves the selected run when possible.
• Documented worktree isolation, async status surfaces, and the reorganized test layout in the README.

Changed

• Consolidated tests under test/unit, test/integration, test/e2e, and test/support, replacing the old mixed root-level and test/ layout. Test scripts now target those directories explicitly.
• Integration tests now use a tiny local file-based mock pi harness instead of relying on the external subprocess harness for normal subagent execution.

Fixed

• Loader-based tests now resolve .js → .ts imports correctly when the repository path contains spaces or other URL-escaped characters. Added a focused regression test for the custom test loader.
• Worktree-isolated parallel runs now reject task-level cwd overrides that differ from the shared batch/step cwd, instead of silently ignoring them. Applies to foreground parallel runs, chain parallel steps, and async/background execution.
• Worktree diff capture now includes committed, modified, and newly created files without accidentally including the synthetic node_modules symlink used inside temporary worktrees.
• Worktree setup now cleans up already-created worktrees if a later worktree in the same batch fails to initialize.
• Prompt-template delegated parallel responses now preserve the aggregate worktree summary text instead of dropping it when rebuilding the final delegated output.
• Async status and result JSON files are now written atomically so readers do not observe partial JSON during background updates.
• readStatus() now returns null only for genuinely missing files and preserves real inspect/read/parse failures with context.
• Async status polling and result watching now log status/result/watcher failures instead of silently swallowing them, making background completion/debugging failures visible.
• Slash-command tests now match the current live snapshot contract instead of asserting the stale pre-finalized inline state.