# Phase 0: Prep Package Schema & Integration

Schema reference for `prep-package.json` consumed by ccw-loop Phase 1. Generated by interactive prompt `/prompts:prep-loop`.

## prep-package.json Schema

```json
{
  "version": "1.0.0",
  "generated_at": "ISO8601 (UTC+8)",
  "prep_status": "ready | cancelled | needs_refinement",
  "target_skill": "ccw-loop",

  "environment": {
    "project_root": "absolute path",
    "tech_stack": "string",
    "test_framework": "string"
  },

  "source": {
    "tool": "collaborative-plan-with-file | analyze-with-file | brainstorm-to-cycle | manual",
    "session_id": "string",
    "jsonl_path": "absolute path to original JSONL",
    "task_count": "number",
    "tasks_with_convergence": "number"
  },

  "tasks": {
    "total": "number",
    "by_priority": { "high": 0, "medium": 0, "low": 0 },
    "by_type": { "feature": 0, "fix": 0, "refactor": 0, "enhancement": 0, "testing": 0 }
  },

  "auto_loop": {
    "enabled": true,
    "no_confirmation": true,
    "max_iterations": 10,
    "timeout_per_action_ms": 600000
  }
}
```

## prep-tasks.jsonl Schema

One task per line, each in ccw-loop `develop.tasks[]` format with extended fields:

```json
{
  "id": "task-001",
  "description": "Title: detailed description",
  "tool": "gemini",
  "mode": "write",
  "status": "pending",
  "priority": 1,
  "files_changed": ["path/to/file.ts"],
  "created_at": "ISO8601",
  "completed_at": null,
  "_source": { "tool": "collaborative-plan-with-file", "session_id": "...", "original_id": "TASK-001" },
  "_convergence": { "criteria": ["..."], "verification": "...", "definition_of_done": "..." },
  "_type": "feature",
  "_effort": "medium",
  "_depends_on": []
}
```

## Validation Rules

| # | Check | Condition | On Failure |
|---|-------|-----------|------------|
| 1 | prep_status | `=== "ready"` | Skip prep, use default INIT |
| 2 | target_skill | `=== "ccw-loop"` | Skip prep, use default INIT |
| 3 | project_root | Matches current `projectRoot` | Skip prep, warn mismatch |
| 4 | freshness | `generated_at` within 24h | Skip prep, warn stale |
| 5 | tasks file | `prep-tasks.jsonl` exists and readable | Skip prep, use default INIT |
| 6 | tasks content | At least 1 valid task line in JSONL | Skip prep, use default INIT |

## Integration Points

### Phase 1: Session Initialization

```javascript
// Load prep-package.json (generated by /prompts:prep-loop)
let prepPackage = null
const prepPath = `${projectRoot}/.workflow/.loop/prep-package.json`

if (fs.existsSync(prepPath)) {
  const raw = JSON.parse(Read(prepPath))
  const checks = validateLoopPrepPackage(raw, projectRoot)

  if (checks.valid) {
    prepPackage = raw
    // Load pre-built tasks from prep-tasks.jsonl
    const tasksPath = `${projectRoot}/.workflow/.loop/prep-tasks.jsonl`
    const prepTasks = loadPrepTasks(tasksPath)
    // → Inject into state.skill_state.develop.tasks
    // → Set max_iterations from auto_loop config
  } else {
    console.warn(`⚠ Prep package failed validation, using default INIT`)
    prepPackage = null
  }
}
```

### INIT Action (action-init.md)

When prep tasks are loaded:
- **Skip** Step 3 (Analyze Task and Generate Tasks) — tasks already provided
- **Use** prep tasks directly in Step 5 (Update State)
- **Preserve** `_convergence` fields for VALIDATE action reference

### VALIDATE Action

When `_convergence` exists on a task:
- Use `convergence.verification` as validation command/steps
- Use `convergence.criteria` as pass/fail conditions
- Fall back to default test validation if `_convergence` is null