{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Plan Exploration",
  "description": "Structured codebase exploration output for feature planning",
  "type": "object",
  "required": ["feature_context", "related_files", "patterns", "affected_modules", "testing_landscape", "risks", "timestamp"],
  "properties": {
    "feature_context": {
      "type": "object",
      "required": ["input_summary", "scope_assessment"],
      "properties": {
        "input_summary": {
          "type": "string",
          "minLength": 10,
          "description": "Brief summary of the feature or task being planned"
        },
        "scope_assessment": {
          "type": "string",
          "enum": ["small", "medium", "large", "epic"],
          "description": "Estimated scope of the work"
        }
      }
    },
    "related_files": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["path", "relevance", "reason"],
        "properties": {
          "path": {
            "type": "string",
            "description": "File path relative to project root"
          },
          "relevance": {
            "type": "string",
            "enum": ["primary", "secondary", "reference"],
            "description": "How relevant this file is to the feature"
          },
          "reason": {
            "type": "string",
            "description": "Why this file is relevant"
          },
          "key_symbols": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "Important functions, types, or constants in this file"
          }
        }
      },
      "description": "Files related to the feature"
    },
    "patterns": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["id", "name", "description", "relevance"],
        "properties": {
          "id": {
            "type": "string",
            "pattern": "^PAT-[0-9]{3}$",
            "description": "Pattern identifier"
          },
          "name": {
            "type": "string",
            "description": "Short name for the pattern"
          },
          "description": {
            "type": "string",
            "description": "What the pattern is and how it works"
          },
          "example_file": {
            "type": "string",
            "description": "File that best demonstrates this pattern"
          },
          "relevance": {
            "type": "string",
            "enum": ["must_follow", "should_follow", "informational"],
            "description": "How important it is to follow this pattern"
          }
        }
      },
      "description": "Codebase patterns and conventions discovered"
    },
    "affected_modules": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["path", "description", "impact_level"],
        "properties": {
          "path": {
            "type": "string",
            "description": "Module or package path"
          },
          "description": {
            "type": "string",
            "description": "What this module does"
          },
          "impact_level": {
            "type": "string",
            "enum": ["direct", "indirect", "none"],
            "description": "Level of impact from the planned changes"
          },
          "dependencies": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "Modules this one depends on"
          },
          "dependents": {
            "type": "array",
            "items": {
              "type": "string"
            },
            "description": "Modules that depend on this one"
          }
        }
      },
      "description": "Modules affected by the planned changes"
    },
    "testing_landscape": {
      "type": "object",
      "required": ["existing_test_files", "testing_patterns"],
      "properties": {
        "existing_test_files": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Test files relevant to the feature"
        },
        "testing_patterns": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Testing patterns used in the codebase (e.g., table-driven, mocks)"
        },
        "coverage_gaps": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Areas lacking test coverage"
        }
      }
    },
    "risks": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["description", "severity"],
        "properties": {
          "description": {
            "type": "string",
            "description": "What the risk is"
          },
          "severity": {
            "type": "string",
            "enum": ["high", "medium", "low"],
            "description": "Risk severity"
          },
          "mitigation": {
            "type": "string",
            "description": "How to mitigate this risk"
          }
        }
      },
      "description": "Risks identified during exploration"
    },
    "timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "When the exploration was completed"
    }
  }
}