{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Agent Tool input mutation",
  "type": "object",
  "required": [
    "schema_version",
    "mutation_id",
    "invocation_id",
    "source_type",
    "created_at"
  ],
  "properties": {
    "schema_version": {
      "type": "string"
    },
    "mutation_id": {
      "type": "string"
    },
    "invocation_id": {
      "type": "string"
    },
    "source_type": {
      "enum": [
        "hook",
        "permission_prompt",
        "adapter",
        "migration",
        "runtime"
      ]
    },
    "source_ref": {
      "type": "string"
    },
    "from_input_ref": {
      "type": "string"
    },
    "to_input_ref": {
      "type": "string"
    },
    "changed_fields": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "reason": {
      "type": "string"
    },
    "created_at": {
      "type": "string"
    }
  },
  "additionalProperties": true
}