---
phase: 02-integration-layer
plan: 02
subsystem: response-formatting
tags: [feishu, card-message, formatting, tdd]
duration: 3min
completed: 2026-03-11
requires: []
provides:
  - FeishuResponseFormatter class
  - CardTheme enum
  - CardButton dataclass
affects:
  - Phase 3 orchestrator.py (will use formatter for responses)
tech-stack:
  added:
    - dataclasses (stdlib)
    - enum (stdlib)
  patterns:
    - TDD (RED-GREEN-REFACTOR)
    - Builder pattern for card construction
key-files:
  created:
    - src/gsd_openclaw/response_formatter.py
    - tests/test_response_formatter.py
  modified: []
key-decisions:
  - Three-zone structure: header + elements + actions
  - Error cards use red theme
  - Success cards use green theme
  - Pagination uses [N/M] format
  - Interactive buttons support callback values
  - Use lark_md tag for markdown content (Feishu built-in)
---

# Phase 2 Plan 2: FeishuResponseFormatter Summary

**One-liner:** Feishu Card JSON 2.0 formatter with theme support, pagination markers, and interactive buttons.

## What Was Done

Created `FeishuResponseFormatter` class that formats responses as Feishu Card JSON 2.0 messages with three-zone structure (header/content/actions).

### Task Summary

| Task | Name | Status | Commit |
|------|------|--------|--------|
| 1 | Create test scaffold | DONE | 541437f |
| 2 | Implement CardTheme and CardButton | DONE | d15ce81 |
| 3 | Implement FeishuResponseFormatter | DONE | fbc69fc |

### Files Created

- `src/gsd_openclaw/response_formatter.py` - Response formatter implementation
- `tests/test_response_formatter.py` - 6 unit tests

## Key Implementation Details

### CardTheme Enum
- `SUCCESS = "green"` - Success operations
- `ERROR = "red"` - Error responses
- `INFO = "blue"` - Informational messages
- `WARNING = "orange"` - Warning messages

### CardButton Dataclass
- `text: str` - Button label
- `value: Dict[str, Any]` - Callback data
- `button_type: str = "primary"` - Button style (primary/default/danger)

### FeishuResponseFormatter Methods
- `format_success(title, content, buttons=None)` - Green themed card
- `format_error(title, content, buttons=None)` - Red themed card
- `format_info(title, content, buttons=None)` - Blue themed card
- `format_paginated(title, content, page, total_pages)` - Card with [N/M] marker

### Card JSON Structure
```json
{
  "schema": "2.0",
  "config": {"wide_screen_mode": true},
  "header": {
    "title": {"tag": "plain_text", "content": "..."},
    "template": "green"
  },
  "elements": [
    {"tag": "div", "text": {"tag": "lark_md", "content": "..."}},
    {"tag": "action", "actions": [...]}
  ]
}
```

## Deviations from Plan

None - plan executed exactly as written.

## Verification Results

```
pytest tests/test_response_formatter.py -v
6 passed in 0.01s
```

All tests pass:
- test_format_success_returns_valid_card
- test_format_error_returns_red_theme
- test_format_info_returns_blue_theme
- test_format_with_buttons_includes_actions
- test_format_paginated_adds_marker
- test_card_has_required_structure

## Integration Points

- **Phase 3**: `orchestrator.py` will use `FeishuResponseFormatter` to format all responses before sending to Feishu
- **OCLW-04 requirement**: Response formatting adapts to channel capabilities (markdown via lark_md)

## Self-Check: PASSED

- [x] `src/gsd_openclaw/response_formatter.py` exists
- [x] `tests/test_response_formatter.py` exists
- [x] Commit 541437f exists (test scaffold)
- [x] Commit d15ce81 exists (CardTheme/CardButton)
- [x] Commit fbc69fc exists (FeishuResponseFormatter)
- [x] All 6 tests pass

---

*Plan completed: 2026-03-11*
*Duration: ~3 minutes*