{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Plan Tasks",
  "description": "Structured task breakdown for feature implementation",
  "type": "object",
  "required": ["feature_summary", "tasks", "execution_order", "metadata", "markdown_content"],
  "properties": {
    "feature_summary": {
      "type": "object",
      "required": ["title", "description", "total_tasks", "estimated_total_complexity"],
      "properties": {
        "title": {
          "type": "string",
          "minLength": 5,
          "description": "Short title for the feature"
        },
        "description": {
          "type": "string",
          "minLength": 20,
          "description": "Brief description of what the feature does"
        },
        "total_tasks": {
          "type": "integer",
          "minimum": 1,
          "description": "Total number of tasks in the breakdown"
        },
        "estimated_total_complexity": {
          "type": "string",
          "enum": ["S", "M", "L", "XL"],
          "description": "Overall complexity estimate"
        }
      }
    },
    "tasks": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["id", "title", "description", "persona", "complexity", "acceptance_criteria"],
        "properties": {
          "id": {
            "type": "string",
            "pattern": "^T[0-9]{2}$",
            "description": "Task identifier (T01, T02, etc.)"
          },
          "title": {
            "type": "string",
            "minLength": 5,
            "description": "Short task title"
          },
          "description": {
            "type": "string",
            "minLength": 20,
            "description": "What needs to be done"
          },
          "persona": {
            "type": "string",
            "enum": ["navigator", "philosopher", "craftsman", "auditor", "planner", "implementer", "reviewer"],
            "description": "Which persona should execute this task"
          },
          "complexity": {
            "type": "string",
            "enum": ["S", "M", "L", "XL"],
            "description": "Task complexity estimate"
          },
          "dependencies": {
            "type": "array",
            "items": {
              "type": "string",
              "pattern": "^T[0-9]{2}$"
            },
            "description": "Task IDs that must complete before this one"
          },
          "acceptance_criteria": {
            "type": "array",
            "minItems": 1,
            "items": {
              "type": "string"
            },
            "description": "How to verify the task is complete"
          },
          "affected_files": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "Files that will be created or modified"
          },
          "risks": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "Risks specific to this task"
          }
        }
      },
      "description": "Ordered list of tasks"
    },
    "execution_order": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["phase", "task_ids"],
        "properties": {
          "phase": {
            "type": "integer",
            "minimum": 1,
            "description": "Execution phase number"
          },
          "task_ids": {
            "type": "array",
            "minItems": 1,
            "items": {
              "type": "string",
              "pattern": "^T[0-9]{2}$"
            },
            "description": "Tasks that can run in parallel in this phase"
          }
        }
      },
      "description": "Parallelization groups for task execution"
    },
    "metadata": {
      "type": "object",
      "required": ["generated_at"],
      "properties": {
        "generated_at": {
          "type": "string",
          "format": "date-time",
          "description": "When the plan was generated"
        }
      }
    },
    "markdown_content": {
      "type": "string",
      "minLength": 50,
      "description": "Pre-rendered human-readable plan in markdown format"
    }
  }
}