{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": ["pr_metadata", "files_changed", "modules_affected", "related_tests", "breaking_changes"],
  "properties": {
    "pr_metadata": {
      "type": "object",
      "required": ["number", "url", "head_branch", "base_branch"],
      "properties": {
        "number": { "type": "integer", "description": "PR number" },
        "url": { "type": "string", "description": "Full PR URL" },
        "head_branch": { "type": "string", "description": "Source branch name" },
        "base_branch": { "type": "string", "description": "Target branch name" }
      }
    },
    "files_changed": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["path", "change_type", "purpose"],
        "properties": {
          "path": { "type": "string" },
          "change_type": { "type": "string", "enum": ["added", "modified", "deleted"] },
          "purpose": { "type": "string" }
        }
      }
    },
    "modules_affected": {
      "type": "array",
      "items": { "type": "string" }
    },
    "related_tests": {
      "type": "array",
      "items": { "type": "string" }
    },
    "breaking_changes": {
      "type": "array",
      "items": { "type": "string" }
    }
  }
}