{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.kxm.dev/intake-message.schema.json",
  "title": "KXM internal intake message",
  "description": "One durable internal message at the Runtime intake boundary. Receipts stay separate facts: received, persisted, and dispatch-intent are different states, and content classified secret is never persisted — only its hash.",
  "type": "object",
  "required": [
    "schema",
    "messageId",
    "projectId",
    "coordinatorId",
    "receivedAt",
    "source",
    "idempotencyKey",
    "contentHash",
    "classification",
    "dispatch"
  ],
  "properties": {
    "schema": { "const": "kxm.intake-message.v1" },
    "messageId": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "projectId": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "coordinatorId": { "$ref": "common.schema.json#/$defs/opaqueId" },
    "receivedAt": { "$ref": "common.schema.json#/$defs/timestamp" },
    "source": {
      "type": "object",
      "required": ["kind", "id"],
      "properties": {
        "kind": { "enum": ["adapter", "hub", "operator", "peer", "schedule"] },
        "id": { "type": "string", "minLength": 1, "maxLength": 200 }
      },
      "additionalProperties": false
    },
    "idempotencyKey": { "type": "string", "minLength": 1, "maxLength": 200 },
    "contentHash": { "$ref": "common.schema.json#/$defs/sha256" },
    "content": { "type": "string", "minLength": 1, "maxLength": 16384 },
    "contentOmittedReason": { "const": "secret-classified" },
    "classification": { "enum": ["public", "project", "sensitive", "secret"] },
    "dispatch": { "$ref": "#/$defs/dispatch" }
  },
  "additionalProperties": false,
  "allOf": [
    {
      "if": { "properties": { "classification": { "const": "secret" } }, "required": ["classification"] },
      "then": { "required": ["contentOmittedReason"], "not": { "required": ["content"] } },
      "else": { "required": ["content"], "not": { "required": ["contentOmittedReason"] } }
    }
  ],
  "$defs": {
    "dispatch": {
      "type": "object",
      "required": ["state"],
      "properties": {
        "state": { "enum": ["ready", "held_paused", "admitted", "refused"] },
        "reason": { "type": "string", "minLength": 1, "maxLength": 512 },
        "updatedAt": { "$ref": "common.schema.json#/$defs/timestamp" },
        "runId": { "$ref": "common.schema.json#/$defs/opaqueId" }
      },
      "additionalProperties": false,
      "allOf": [
        {
          "if": { "properties": { "state": { "const": "admitted" } }, "required": ["state"] },
          "then": { "required": ["runId", "updatedAt"] }
        },
        {
          "if": { "properties": { "state": { "not": { "const": "admitted" } } }, "required": ["state"] },
          "then": { "not": { "required": ["runId"] } }
        },
        {
          "if": { "properties": { "state": { "enum": ["held_paused", "refused"] } }, "required": ["state"] },
          "then": { "required": ["reason"] }
        }
      ]
    }
  }
}