Evidence row 1233452

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Check the user's answer to a question from get_practice_questions.\n        `selected` is the option letters the user chose, e.g. [\"B\"] or [\"A\", \"D\"].\n        Returns whether it is right, the correct letters and the explanation.",
      "inputSchema": {
        "properties": {
          "exam": {
            "title": "Exam",
            "type": "string"
          },
          "question_id": {
            "title": "Question Id",
            "type": "string"
          },
          "selected": {
            "items": {
              "type": "string"
            },
            "title": "Selected",
            "type": "array"
          }
        },
        "required": [
          "exam",
          "question_id",
          "selected"
        ],
        "title": "check_answerArguments",
        "type": "object"
      },
      "name": "check_answer"
    },
    {
      "description": "Describe one exam: the vendor's real exam (official code, question\n        count, fee, domains and their weights) and our practice set for it\n        (size, free questions, price, timed mock exam). `exam` is a set_id from\n        search_exams or an official exam code.",
      "inputSchema": {
        "properties": {
          "exam": {
            "title": "Exam",
            "type": "string"
          }
        },
        "required": [
          "exam"
        ],
        "title": "get_exam_detailsArguments",
        "type": "object"
      },
      "name": "get_exam_details"
    },
    {
      "description": "Return up to five free sample questions for an exam, each with its\n        correct option letters and a written explanation. Show the question and\n        options, let the user answer, and only then reveal the answer and the\n        explanation.",
      "inputSchema": {
        "properties": {
          "count": {
            "default": 5,
            "title": "Count",
            "type": "integer"
          },
          "exam": {
            "title": "Exam",
            "type": "string"
          }
        },
        "required": [
          "exam"
        ],
        "title": "get_practice_questionsArguments",
        "type": "object"
      },
      "name": "get_practice_questions"
    },
    {
      "description": "Recommended exam order for each career role at one vendor (e.g. \"aws\",\n        \"Microsoft Azure\"), from first exam to last.",
      "inputSchema": {
        "properties": {
          "vendor": {
            "title": "Vendor",
            "type": "string"
          }
        },
        "required": [
          "vendor"
        ],
        "title": "get_study_pathsArguments",
        "type": "object"
      },
      "name": "get_study_paths"
    },
    {
      "description": "Without a vendor, list the certification vendors covered and how many\n        exams each has. With a vendor (a name such as \"Microsoft Azure\" or a code\n        such as \"aws\", \"iapp\", \"isc2\"), list that vendor's exams.",
      "inputSchema": {
        "properties": {
          "vendor": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Vendor"
          }
        },
        "title": "list_examsArguments",
        "type": "object"
      },
      "name": "list_exams"
    },
    {
      "description": "Find certification exams by official code (e.g. \"SAA-C03\", \"CIPP/E\"),\n        name (e.g. \"Azure Administrator\") or topic (e.g. \"GDPR\"). Returns the\n        matching practice sets with their size, free questions and price.",
      "inputSchema": {
        "properties": {
          "limit": {
            "default": 5,
            "title": "Limit",
            "type": "integer"
          },
          "query": {
            "title": "Query",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "title": "search_exams_toolArguments",
        "type": "object"
      },
      "name": "search_exams"
    }
  ]
}

What the leaf hashes

{"body":"c6fa02f08919aff06965daeccd71cda881e97353b4316e58ac8df590721df79a","id":1233452,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793347431595286,"prev":null,"subject":"dc96a6c1-b0d4-40bb-bfbb-8efdfb3ab1ce","subject_kind":"endpoint"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.