{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://schema.recinq.com/wave/implement-phase.schema.json",
  "title": "Wave Implement Phase Output Contract",
  "description": "Validates implementation phase outputs for prototype-driven development pipeline",
  "type": "object",
  "properties": {
    "phase": {
      "type": "string",
      "const": "implement",
      "description": "Phase identifier"
    },
    "artifacts": {
      "type": "object",
      "properties": {
        "implementation_plan": {
          "type": "object",
          "properties": {
            "path": {
              "type": "string",
              "pattern": "^.*implementation-plan\\.md$",
              "description": "Path to implementation plan file"
            },
            "exists": {
              "type": "boolean",
              "const": true,
              "description": "Implementation plan file must exist"
            },
            "content_type": {
              "type": "string",
              "const": "markdown",
              "description": "Implementation plan content format"
            }
          },
          "required": ["path", "exists", "content_type"],
          "additionalProperties": false
        },
        "progress_checklist": {
          "type": "object",
          "properties": {
            "path": {
              "type": "string",
              "pattern": "^.*implementation-checklist\\.md$",
              "description": "Path to progress checklist file"
            },
            "exists": {
              "type": "boolean",
              "const": true,
              "description": "Progress checklist file must exist"
            },
            "content_type": {
              "type": "string",
              "const": "markdown",
              "description": "Checklist content format"
            }
          },
          "required": ["path", "exists", "content_type"],
          "additionalProperties": false
        }
      },
      "required": ["implementation_plan", "progress_checklist"],
      "additionalProperties": true
    },
    "validation": {
      "type": "object",
      "properties": {
        "tests_executed": {
          "type": "boolean",
          "description": "Whether test suite was executed"
        },
        "test_results": {
          "type": "object",
          "properties": {
            "total": {
              "type": "integer",
              "minimum": 0,
              "description": "Total number of tests"
            },
            "passed": {
              "type": "integer",
              "minimum": 0,
              "description": "Number of tests that passed"
            },
            "failed": {
              "type": "integer",
              "minimum": 0,
              "description": "Number of tests that failed"
            },
            "coverage_percent": {
              "type": "number",
              "minimum": 0,
              "maximum": 100,
              "description": "Test coverage percentage"
            }
          },
          "required": ["total", "passed", "failed"],
          "additionalProperties": false
        },
        "implementation_readiness": {
          "type": "string",
          "enum": ["ready", "partial", "needs_work"],
          "description": "Assessment of implementation readiness"
        }
      },
      "required": ["tests_executed", "implementation_readiness"],
      "additionalProperties": false
    },
    "metadata": {
      "type": "object",
      "properties": {
        "timestamp": {
          "type": "string",
          "format": "date-time",
          "description": "When implementation phase was completed"
        },
        "duration_seconds": {
          "type": "number",
          "minimum": 0,
          "description": "Time taken for implementation phase"
        },
        "previous_phases": {
          "type": "array",
          "items": {
            "type": "string",
            "enum": ["spec", "docs", "dummy"]
          },
          "minItems": 3,
          "maxItems": 3,
          "description": "Previous phases that fed into this implementation"
        }
      },
      "required": ["timestamp", "previous_phases"],
      "additionalProperties": false
    }
  },
  "required": ["phase", "artifacts", "validation", "metadata"],
  "additionalProperties": false
}