{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://mere.run/schemas/worker-probe-v1.schema.json",
  "title": "mere.run Graph Worker Probe V1",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema_version", "worker_version", "contract_versions", "platform", "architecture", "accelerator_backend", "memory_bytes", "node_kinds", "installed_model_ids", "providers"],
  "properties": {
    "schema_version": { "const": 1 },
    "worker_version": { "type": "string" },
    "contract_versions": { "type": "array", "items": { "type": "string" }, "uniqueItems": true },
    "platform": { "type": "string" },
    "architecture": { "type": "string" },
    "accelerator_backend": { "enum": ["metal", "cuda", "rocm", "cpu", "unknown", "mixed"] },
    "memory_bytes": { "type": "integer", "minimum": 0 },
    "system_memory_bytes": { "type": "integer", "minimum": 0 },
    "logical_cpu_cores": { "type": "integer", "minimum": 0 },
    "available_disk_bytes": { "type": ["integer", "null"], "minimum": 0 },
    "network_access": { "type": "boolean" },
    "node_kinds": { "type": "array", "items": { "type": "string" }, "uniqueItems": true },
    "installed_model_ids": { "type": "array", "items": { "type": "string" }, "uniqueItems": true },
    "available_secret_names": { "type": "array", "items": { "type": "string", "pattern": "^[a-z][a-z0-9-]{0,63}$" }, "uniqueItems": true },
    "providers": { "type": "array", "items": { "$ref": "#/$defs/provider" } }
  },
  "$defs": {
    "provider": {
      "type": "object",
      "additionalProperties": false,
      "required": ["id", "version", "catalog_sha256", "node_kinds"],
      "properties": {
        "id": { "type": "string", "pattern": "^mere-[a-z0-9-]+$" },
        "version": { "type": "string", "minLength": 1 },
        "catalog_sha256": { "type": "string", "pattern": "^[a-f0-9]{64}$" },
        "node_kinds": { "type": "array", "items": { "type": "string" }, "uniqueItems": true }
      }
    }
  }
}