Evidence row 2042354

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Chat completion on a frontier model: GPT-6.1 Sol and Terra, GPT-5.5, Claude Sonnet 5.5 and Haiku 5.5, Gemini 3.8 Flash, Grok 4.7, GPT-6 Luna (default anthropic/claude-haiku-5.5; see the models tool). Same shape as OpenAI chat: messages, optional max_tokens (default 1024, max 8192), temperature, tools. Price is quoted per call from your input size and max_tokens: (estimated input tokens x input rate + max_tokens x output rate) x 1.4 + $0.0005, minimum $0.002; the 402 states the exact amount. Charged only if the model call succeeds. Thinking models (GPT-5.5, Gemini, Grok, gpt-oss) spend part of max_tokens on reasoning: give them room, or set reasoning_effort (default low). Prompts go to the model's provider and are not stored by PayperWork. No streaming.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "max_tokens": {
            "maximum": 8192,
            "minimum": 1,
            "type": "integer"
          },
          "messages": {
            "items": {
              "additionalProperties": {},
              "properties": {
                "content": {},
                "name": {
                  "type": "string"
                },
                "role": {
                  "type": "string"
                },
                "tool_call_id": {
                  "type": "string"
                },
                "tool_calls": {}
              },
              "required": [
                "role",
                "content"
              ],
              "type": "object"
            },
            "maxItems": 200,
            "minItems": 1,
            "type": "array"
          },
          "model": {
            "type": "string"
          },
          "reasoning_effort": {
            "enum": [
              "none",
              "low",
              "medium",
              "high"
            ],
            "type": "string"
          },
          "response_format": {},
          "stop": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "items": {
                  "type": "string"
                },
                "type": "array"
              }
            ]
          },
          "temperature": {
            "maximum": 2,
            "minimum": 0,
            "type": "number"
          },
          "tool_choice": {},
          "tools": {
            "items": {},
            "type": "array"
          },
          "top_p": {
            "maximum": 1,
            "minimum": 0,
            "type": "number"
          }
        },
        "required": [
          "messages"
        ],
        "type": "object"
      },
      "name": "chat"
    },
    {
      "description": "List the available models with provider rates, the pricing formula and limits. Free.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {},
        "type": "object"
      },
      "name": "models"
    }
  ]
}

What the leaf hashes

{"body":"7ad330590b5c0184594782da64c397c980f77844dacf05bc013df46cdf0256be","id":2042354,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793588682383189,"prev":1767114,"subject":"3c145dee-0234-40ae-a534-d8fde5642ced","subject_kind":"endpoint"}

Proof

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