# Textual Workbench Implementation Result

- Date: 2026-06-05
- Branch: `feature/textual-workbench-ui`
- Target version: `0.10.0`

## Completed Order

1. Added `textual>=8.2.7` dependency and `TRINITY_TUI` runtime selector.
2. Added `TrinityTextualApp` shell and screen router.
3. Added Start Screen and multi-line Prompt Composer.
4. Added Nexus provider status panels.
5. Added read-only workflow snapshot adapter.
6. Added Central Agent synthesis view with question option buttons.
7. Added Provider Inspector modal.
8. Added Workflow Inspector side surface.
9. Added theme Settings screen and user UI settings store.
10. Added Execute workspace picker and preflight modal.
11. Added Execution Matrix screen with DataTable and RichLog.
12. Switched default `trinity` entrypoint to Textual with `--plain` fallback.
13. Added Textual import and CLI fallback smoke tests.
14. Updated README/troubleshooting documentation.

## Verification

- `uv run pytest tests/test_cli.py tests/test_cli_v2.py tests/test_textual_app.py tests/test_textual_runtime.py`
- `uv run pytest tests/test_textual_smoke.py tests/test_textual_app.py tests/test_textual_workspace_picker.py tests/test_textual_settings.py tests/test_textual_snapshot.py tests/test_textual_runtime.py tests/test_cli.py::TestVersion tests/test_cli_v2.py::TestStatusWatch`

Full-suite verification should be run before merging the branch.
