{
  "id": "auth.invalid_token_format",
  "category": "authentication",
  "summary": "The server rejected the token during local validation.",
  "match_any": [
    {
      "error_code": 401,
      "description_exact": "Unauthorized: invalid token specified"
    }
  ],
  "scope": {
    "method_examples": [
      "getMe"
    ],
    "exhaustive": false
  },
  "possible_causes": [
    "A locally checked token structure or numeric identifier constraint failed."
  ],
  "diagnostic_limits": "This signature is narrower than generic Unauthorized. Other malformed-token paths may produce different codes.",
  "evidence": [
    {
      "source": "server-10.3",
      "path": "telegram-bot-api/ClientManager.cpp",
      "lines": [
        73,
        84
      ],
      "note": "Two local checks return this exact response; the intervening check can return 421."
    }
  ],
  "example": {
    "method": "getMe",
    "response": {
      "ok": false,
      "error_code": 401,
      "description": "Unauthorized: invalid token specified"
    }
  },
  "evidence_level": "source_derived",
  "guidance": {
    "action": "correct_token_configuration",
    "repeat_request": "after_configuration_change",
    "preconditions": [
      "Verify the configured token without placing it in logs or inventory submissions."
    ]
  }
}