{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.kxm.dev/coordinator.schema.json",
  "title": "KXM project coordinator identity",
  "description": "A persistent, project-scoped coordinator: an authority ceiling bound to a role and channel, not an always-running model. Rebinding a stable coordinator requires explicit policy and may never widen its ceiling.",
  "type": "object",
  "required": [
    "schema",
    "coordinatorId",
    "projectId",
    "role",
    "channel",
    "authority",
    "boundAt",
    "boundBy",
    "configRevision",
    "ceilingHash"
  ],
  "properties": {
    "schema": { "const": "kxm.coordinator.v1" },
    "coordinatorId": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "projectId": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "role": { "$ref": "common.schema.json#/$defs/identifier" },
    "channel": { "$ref": "common.schema.json#/$defs/identifier" },
    "authority": {
      "type": "object",
      "required": ["repositoryAccess", "effects"],
      "properties": {
        "repositoryAccess": { "$ref": "common.schema.json#/$defs/repositoryAccess" },
        "effects": {
          "type": "array",
          "items": { "$ref": "common.schema.json#/$defs/identifier" },
          "uniqueItems": true,
          "maxItems": 64
        },
        "tools": { "$ref": "common.schema.json#/$defs/toolPolicy" }
      },
      "additionalProperties": false
    },
    "boundAt": { "$ref": "common.schema.json#/$defs/timestamp" },
    "boundBy": { "$ref": "common.schema.json#/$defs/actor" },
    "rebindOf": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "rebindReason": { "type": "string", "minLength": 1, "maxLength": 512 },
    "configRevision": { "$ref": "common.schema.json#/$defs/sha256" },
    "ceilingHash": { "$ref": "common.schema.json#/$defs/sha256" }
  },
  "additionalProperties": false,
  "allOf": [
    {
      "if": { "properties": { "rebindOf": {} }, "required": ["rebindOf"] },
      "then": { "required": ["rebindReason"] }
    }
  ]
}