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stages/002-plan_app@1/diff.patch

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+diff --git a/.ai/solitaire-fast-plan.md b/.ai/solitaire-fast-plan.md
+new file mode 100644
+index 000000000..9eeab8747
+--- /dev/null
++++ b/.ai/solitaire-fast-plan.md
+@@ -0,0 +1,144 @@
++# Implementation Plan: Python Klondike Solitaire Curses TUI
++
++This document outlines the concise plan to implement a terminal-based Klondike Solitaire game in Python using the standard library `curses` module, with full game logic, undo history, win detection, a non-interactive smoke test suite, and a unit test suite using `pytest`.
++
++All files will reside under the directory `solitaire-app/`.
++
++---
++
++## 1. Directory Structure
++
++```text
++solitaire-app/
++├── requirements.txt      # Project dependencies (pytest)
++├── main.py               # Application entry point (handles --smoke and launches TUI)
++├── game_logic.py         # Complete pure Python engine for card and game state management
++├── tui.py                # Curses-based terminal interface layout, input handler, and renderer
++└── tests/
++    └── test_game_logic.py # Unit tests for game rules, moves, and state transitions
++```
++
++---
++
++## 2. Technical Stack & Requirements
++
++- **Language**: Python 3.11+
++- **UI Library**: Standard library `curses` (fully playable TUI with color support, keyboard controls, and layout adaptability)
++- **Testing**: `pytest` for rules engine verification
++- **E2E / Demo Verification**: `python3 main.py --smoke` runs a non-interactive automated smoke test of the game logic and exits 0 on success.
++
++---
++
++## 3. Game Engine (game_logic.py)
++
++The game engine will be completely decoupled from the UI layer to ensure reliable testing.
++
++### Key Models
++
++- **`Card`**:
++  - `suit`: One of `♠`, `♥`, `♦`, `♣` (or string representation)
++  - `rank`: Integer from 1 (Ace) to 13 (King)
++  - `face_up`: Boolean
++  - `color`: Derived property (Red for ♥/♦, Black for ♠/♣)
++
++- **`GameState`**:
++  - `stock`: List of face-down cards
++  - `waste`: List of drawn cards (only the top card is visible and playable)
++  - `tableau`: List of 7 columns, each being a list of `Card`s
++  - `foundations`: Dict with 4 keys (suits/indices) pointing to lists of card sequences (A to K)
++  - `undo_stack`: Stack of serialized or deep-copied previous states
++
++### Core Operations & Rules (Draw-One Klondike)
++
++1. **Initialization**:
++   - Shuffle a standard 52-card deck.
++   - Deal cards to the 7 tableau columns (Column $i$ gets $i$ cards; top card is face_up, others face_down).
++   - Remaining cards go to the `stock` pile.
++2. **Draw / Recycle**:
++   - `draw_card()`: Move 1 card from `stock` to `waste` (face-up).
++   - If `stock` is empty, recycle `waste` back to `stock` by reversing and flipping them face-down.
++3. **Move Validation & Execution**:
++   - **Tableau to Tableau**: A card (or face-up stack) can move to another column if the bottom-most card of the moving stack is 1 rank lower and of the opposite color of the target column's top card. An empty tableau column can only accept a King (rank 13).
++   - **Waste to Tableau**: Top of waste can move to a tableau column following the same color/rank rules.
++   - **Waste/Tableau to Foundation**: Cards can move to foundations. Foundations build up from Ace (1) to King (13) by same suit.
++   - **Auto-Reveal**: If a move exposes a face-down card at the top of a tableau column, it is automatically flipped face-up.
++4. **Undo**:
++   - Push the full state to `undo_stack` before any mutating game action.
++   - `undo()` pops from `undo_stack` and restores the game state.
++5. **Win Detection**:
++   - `check_win()` returns `True` when all 4 foundations contain 13 cards (or foundations total 52 cards).
++
++---
++
++## 4. TUI Layout & Interactions (tui.py)
++
++The Curses TUI will draw a clean grid layout of the game board.
++
++### Visual Representation
++
++```text
++  [Stock]    [Waste]                [F1]   [F2]   [F3]   [F4]
++   [#]        [ ♦Q ]                 [ ]    [ ]    [ ]    [ ]
++
++  [Col 1]   [Col 2]   [Col 3]   [Col 4]   [Col 5]   [Col 6]   [Col 7]
++   ♠K        [#]       [#]       [#]       [#]       [#]       [#]
++             ♥J        [#]       [#]       [#]       [#]       [#]
++                       ♣10       [#]       [#]       [#]       [#]
++                                 ♦9        [#]       [#]       [#]
++                                           ♠8        [#]       [#]
++                                                     ♥7        [#]
++                                                               ♣6
++```
++
++### Color Setup
++- Red cards (♥, ♦) drawn with red text foreground.
++- Black cards (♠, ♣) drawn with black or white/blue text.
++- Focus highlights (selected cards/piles) drawn with distinct background inversion or terminal style.
++
++### Control Scheme
++
++To keep the implementation simple, intuitive, and responsive, the TUI will support a cursor/selection-based movement system:
++- **Arrow Keys** or **WASD**: Move cursor between Stock, Waste, Foundations (1-4), and Tableau Piles (1-7).
++- **Space / Enter**: 
++  - If cursor is on Stock: Draw card.
++  - If cursor is on a valid card source (Tableau, Waste): Select card/stack.
++  - If cursor is on a valid card destination (Tableau, Foundation): Move selected card/stack to this location.
++- **'u' Key**: Undo last action.
++- **'r' Key**: Restart a new game.
++- **'q' Key**: Quit game.
++
++---
++
++## 5. Non-Interactive Demo Mode (`--smoke`)
++
++In `main.py`, if `--smoke` argument is passed, the script will execute a headless simulation:
++1. Initialize a deterministic or random game state.
++2. Verify stock drawing and recycling logic.
++3. Programmatically execute a valid move (e.g., set up a mock board with a valid move, run it, and assert the state change).
++4. Verify `undo` reverts the mock state change.
++5. Create a nearly complete foundation set, execute the final winning move, and assert that `check_win()` detects the win.
++6. Print a clean summary of actions taken and exit with code 0 on success.
++
++---
++
++## 6. Testing (tests/test_game_logic.py)
++
++We will use `pytest` to test rules and operations. Tests will include:
++- `test_game_initialization`: Proper card counts, correct dealing distribution.
++- `test_draw_and_recycle`: Correct handling of stock depletion and recycling.
++- `test_legal_tableau_moves`: Rules on opposite color and rank subtraction.
++- `test_foundation_moves`: Building same-suit foundation piles from A to K.
++- `test_invalid_moves`: Rejection of illegal moves (e.g., King on non-empty, wrong colors, wrong order).
++- `test_undo`: Multi-step undo stability.
++- `test_win_detection`: Assuring win status updates correctly on foundation completion.
++
++---
++
++## 7. Plan Execution Steps
++
++1. **Step 1**: Create folder `solitaire-app/` and establish `requirements.txt`.
++2. **Step 2**: Implement the engine in `solitaire-app/game_logic.py`.
++3. **Step 3**: Implement unit tests in `solitaire-app/tests/test_game_logic.py` and run them with `pytest` to verify absolute correctness of the core game engine.
++4. **Step 4**: Implement the non-interactive demo code in `solitaire-app/main.py` controlled by the `--smoke` flag.
++5. **Step 5**: Implement the Curses UI layout and loop in `solitaire-app/tui.py` and hook it into `main.py`.
++6. **Step 6**: Validate the entire application interactive interface and verify `--smoke` demo exits successfully.
+diff --git a/status.json b/status.json
+new file mode 100644
+index 000000000..905fb370f
+--- /dev/null
++++ b/status.json
+@@ -0,0 +1,3 @@
++{
++  "outcome": "succeeded"
++}

stages/002-plan_app@1/response.md

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+I have successfully created and documented a concise implementation plan for a Python Klondike Solitaire terminal-based game (with standard-library `curses` TUI).
+
+The plan has been written to:
+* **`.ai/solitaire-fast-plan.md`**
+
+And the required status file has been written to the workspace root:
+* **`status.json`** (`{"outcome": "succeeded"}`)

stages/002-plan_app@1/status.json

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+{
+  "outcome": "succeeded",
+  "notes": "Stage completed: plan_app",
+  "failure_reason": null,
+  "timestamp": "2026-06-04T18:05:19.277283Z"
+}

stages/003-implement_app@1/prompt.md

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+Goal: Quickly build a terminal-based Klondike solitaire game in Python with a curses TUI
+
+## Completed stages
+- **plan_app**: succeeded
+  - Model: gemini-3.5-flash, 61.9k tokens in / 4.6k out
+  - Files: /home/daytona/workspace/fabro/.ai/solitaire-fast-plan.md, /home/daytona/workspace/fabro/status.json
+
+
+Read .ai/solitaire-fast-plan.md.
+
+Build the complete app under solitaire-app/ in one focused pass:
+- pyproject.toml
+- main.py
+- src/solitaire_tui/ package
+- tests/ package
+- README.md
+
+Implement:
+- Card, deck, pile, and GameState types
+- Initial Klondike deal
+- Move validation and execution
+- Stock/waste draw and recycle
+- Undo
+- Win detection
+- Curses UI with board rendering, keyboard navigation, help, new game, and quit
+- --smoke mode that imports the app, creates a game, renders a text snapshot or summary, and exits without curses interaction
+
+Run:
+cd solitaire-app && python3 -m pytest tests/ -v && python3 -m py_compile main.py src/solitaire_tui/*.py && python3 main.py --smoke
+
+Write status.json at workspace root: outcome=succeeded if the app builds, tests pass, and smoke mode works, outcome=failed with failure_reason otherwise.

stages/003-implement_app@1/provider_used.json

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+{
+  "mode": "agent",
+  "provider": "gemini",
+  "model": "gemini-3.5-flash"
+}