{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "RFC Specification",
  "description": "JSON Schema for RFC TOML artifacts with [govctl] metadata section",
  "type": "object",
  "required": ["govctl", "sections"],
  "properties": {
    "govctl": {
      "type": "object",
      "required": [
        "id",
        "title",
        "version",
        "status",
        "phase",
        "owners",
        "created"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^RFC-\\d{4}$"
        },
        "title": {
          "type": "string",
          "minLength": 1
        },
        "version": {
          "type": "string",
          "pattern": "^\\d+\\.\\d+\\.\\d+$"
        },
        "status": {
          "type": "string",
          "enum": ["draft", "normative", "deprecated"]
        },
        "phase": {
          "type": "string",
          "enum": ["spec", "impl", "test", "stable"]
        },
        "owners": {
          "type": "array",
          "items": { "type": "string" },
          "minItems": 1
        },
        "created": {
          "type": "string",
          "format": "date"
        },
        "updated": {
          "type": "string",
          "format": "date"
        },
        "supersedes": {
          "type": "string",
          "pattern": "^RFC-\\d{4}$"
        },
        "refs": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^(RFC-\\d{4}(?::C-[A-Z][A-Z0-9-]*)?|ADR-\\d{4}|WI-\\d{4}-\\d{2}-\\d{2}-(?:[a-f0-9]{4}(?:-\\d{3})?|\\d{3}))$"
          }
        },
        "tags": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z][a-z0-9-]*$"
          }
        },
        "signature": {
          "type": "string",
          "pattern": "^[0-9a-f]{64}$"
        },
        "schema": {
          "type": "integer"
        }
      },
      "additionalProperties": false
    },
    "sections": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["title"],
        "properties": {
          "title": { "type": "string" },
          "clauses": {
            "type": "array",
            "items": { "type": "string" }
          }
        },
        "additionalProperties": false
      }
    },
    "changelog": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["version", "date"],
        "properties": {
          "version": {
            "type": "string",
            "pattern": "^\\d+\\.\\d+\\.\\d+$"
          },
          "date": { "type": "string", "format": "date" },
          "notes": { "type": "string" },
          "added": { "type": "array", "items": { "type": "string" } },
          "changed": { "type": "array", "items": { "type": "string" } },
          "deprecated": { "type": "array", "items": { "type": "string" } },
          "removed": { "type": "array", "items": { "type": "string" } },
          "fixed": { "type": "array", "items": { "type": "string" } },
          "security": { "type": "array", "items": { "type": "string" } }
        },
        "additionalProperties": false
      }
    }
  },
  "additionalProperties": false
}