{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://intelligentism.isilp.org/schemas/proposal.schema.json",
  "title": "Intelligentism Improvement Proposal",
  "description": "Front-matter schema for a numbered improvement proposal stored in /proposals as MDX.",
  "type": "object",
  "required": ["id", "title", "status", "summary", "created", "updated", "authors"],
  "additionalProperties": false,
  "properties": {
    "id": { "type": "string", "pattern": "^IIP-[0-9]{4}$" },
    "title": { "type": "string" },
    "status": {
      "type": "string",
      "enum": ["concept", "draft", "research", "review", "pilot", "accepted", "deprecated", "superseded"]
    },
    "book": { "type": "string", "description": "Primary specification book this proposal governs." },
    "summary": { "type": "string", "maxLength": 400 },
    "created": { "type": "string", "format": "date" },
    "updated": { "type": "string", "format": "date" },
    "authors": { "type": "array", "items": { "type": "string" }, "minItems": 1 },
    "specification_paths": {
      "type": "array",
      "description": "Site paths of the chapters this proposal governs.",
      "items": { "type": "string" }
    },
    "supersedes": { "type": "array", "items": { "type": "string", "pattern": "^IIP-[0-9]{4}$" } },
    "superseded_by": { "type": "string", "pattern": "^IIP-[0-9]{4}$" },
    "version": { "type": "string" }
  }
}