Evidence row 1255798

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Fetch today's Quant Daily drill (GRE Quantitative Reasoning · GMAT quant). Every conversation receives this same question, already checked to have one correct answer. Returns the exam, the difficulty and the expected time in seconds. Does not return the answer or the worked explanation. English only; lang hi is rejected. Attempts are counted per conversation, not per person.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "attemptId": {
            "description": "Conversation id returned by get_daily_drill on Quant Daily. Attempts are counted per conversation, not per person. Pass this same id on every later call in the conversation.",
            "type": "string"
          },
          "lang": {
            "description": "Optional. en only. hi is rejected: Quant Daily is English only.",
            "enum": [
              "en",
              "hi"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_daily_drill"
    },
    {
      "description": "Name the drill type and ask for the first step on a Quant Daily question. Does not reveal the option or the worked explanation. Attempts are counted per conversation, not per person.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "attemptId": {
            "description": "Conversation id returned by get_daily_drill on Quant Daily. Attempts are counted per conversation, not per person. Pass this same id on every later call in the conversation.",
            "type": "string"
          },
          "drill": {
            "description": "Which question. \"daily\" is today's shared drill. A practice id (practice-0, practice-1) is the one get_practice_drill returned.",
            "type": "string"
          },
          "lang": {
            "description": "Optional. en only. hi is rejected: Quant Daily is English only.",
            "enum": [
              "en",
              "hi"
            ],
            "type": "string"
          }
        },
        "required": [
          "attemptId",
          "drill"
        ],
        "type": "object"
      },
      "name": "get_drill_hint"
    },
    {
      "description": "Open one extra Quant Daily practice question, checked to have one correct answer. This conversation can open 2 practice questions today (the anonymous allowance). These are not today's shared drill and they are not in the attempt ranking. English only; lang hi is rejected.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "attemptId": {
            "description": "Conversation id returned by get_daily_drill on Quant Daily. Attempts are counted per conversation, not per person. Pass this same id on every later call in the conversation.",
            "type": "string"
          },
          "lang": {
            "description": "Optional. en only. hi is rejected: Quant Daily is English only.",
            "enum": [
              "en",
              "hi"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_practice_drill"
    },
    {
      "description": "Submit one option id for a Quant Daily drill. Returns whether it is right or wrong and how many attempts remain. A wrong guess does not name the correct option. When the round finishes, returns a Verified answer and the worked explanation. Today's shared drill also says whether this conversation solved in fewer attempts than other conversations that finished that same drill. That line is attempts used, not time; the ranking is anonymous and is not the public website leaderboard. Dev, staging, and test conversations are not in the count. A correct answer adds a link to practice the full timed set. Three attempts per conversation, not per person.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "attemptId": {
            "description": "Conversation id returned by get_daily_drill on Quant Daily. Attempts are counted per conversation, not per person. Pass this same id on every later call in the conversation.",
            "type": "string"
          },
          "drill": {
            "description": "Which question. \"daily\" is today's shared drill. A practice id (practice-0, practice-1) is the one get_practice_drill returned.",
            "type": "string"
          },
          "lang": {
            "description": "Optional. en only. hi is rejected: Quant Daily is English only.",
            "enum": [
              "en",
              "hi"
            ],
            "type": "string"
          },
          "optionId": {
            "description": "The option id shown with the question. Send the id, not the option text.",
            "type": "string"
          }
        },
        "required": [
          "attemptId",
          "drill",
          "optionId"
        ],
        "type": "object"
      },
      "name": "submit_drill_answer"
    }
  ]
}

What the leaf hashes

{"body":"448e0490da9dee5239e1b024ab9b6b52f94432030368c9954184ceafbfc80931","id":1255798,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793373588885726,"prev":null,"subject":"ee297aba-ffe8-4f1c-a15c-c63509195c48","subject_kind":"endpoint"}

Proof

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