Evidence row 1225841

What was observed

{
  "count": 5,
  "tools": [
    {
      "description": "Convert exact caller CSV to a real XLSX spreadsheet with one Data sheet and a SUM totals row. Explicit numericColumns and totalColumns; all other cells are literal strings, never inferred formulas. Returns actual file bytes. Official documentation: https://creora.darwin.so/providers/files/docs",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "csv": {
            "maxLength": 131072,
            "minLength": 1,
            "type": "string"
          },
          "numericColumns": {
            "items": {
              "type": "string"
            },
            "maxItems": 64,
            "type": "array",
            "uniqueItems": true
          },
          "totalColumns": {
            "items": {
              "type": "string"
            },
            "maxItems": 64,
            "minItems": 1,
            "type": "array",
            "uniqueItems": true
          }
        },
        "required": [
          "csv",
          "numericColumns",
          "totalColumns"
        ],
        "type": "object"
      },
      "name": "csv_to_xlsx"
    },
    {
      "description": "Create a real iCalendar file from a brief with Start: YYYY-MM-DD HH:MM IANA/Zone, Duration: N minutes, Title: text, optionally preceded by a Markdown heading. Resolves timezone to UTC; refuses ambiguous/nonexistent DST times. createdAt must be UTC ISO seconds. Does not add any calendar event. Official documentation: https://creora.darwin.so/providers/files/docs",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "createdAt": {
            "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$",
            "type": "string"
          },
          "eventBrief": {
            "maxLength": 131072,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "eventBrief",
          "createdAt"
        ],
        "type": "object"
      },
      "name": "event_brief_to_ics"
    },
    {
      "description": "Render caller-supplied text Markdown to a real downloadable PDF. Headings, paragraphs and lists; Windows-1252 text only. No images, HTML, fetches or external writes. Returns actual inline file bytes and SHA256. Official documentation: https://creora.darwin.so/providers/files/docs",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "markdown": {
            "maxLength": 131072,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "markdown"
        ],
        "type": "object"
      },
      "name": "markdown_to_pdf"
    },
    {
      "description": "Extract every sheet from a caller-supplied base64 XLSX into separate genuine UTF-8 CSV files, preserving sheet names in metadata and cell values. Formula values require existing caches; does not execute formulas. Refuses macros, external links and expansion bombs. Official documentation: https://creora.darwin.so/providers/files/docs",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "xlsxBase64": {
            "maxLength": 174764,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "xlsxBase64"
        ],
        "type": "object"
      },
      "name": "xlsx_to_csv"
    },
    {
      "description": "Create an exact ZIP of caller-supplied named UTF-8 texts. Preserves bytes and nested safe paths; rejects traversal, duplicate/colliding names and excessive data. No external files or fetches. Official documentation: https://creora.darwin.so/providers/files/docs",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "files": {
            "items": {
              "additionalProperties": false,
              "properties": {
                "name": {
                  "maxLength": 160,
                  "minLength": 1,
                  "type": "string"
                },
                "text": {
                  "maxLength": 131072,
                  "minLength": 1,
                  "type": "string"
                }
              },
              "required": [
                "name",
                "text"
              ],
              "type": "object"
            },
            "maxItems": 32,
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "files"
        ],
        "type": "object"
      },
      "name": "zip_text_files"
    }
  ]
}

What the leaf hashes

{"body":"df00e0ac58379c40a481dfbcafb6cccd9d4f9402bb04c52cabed58aea52f4825","id":1225841,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793329479710151,"prev":1034248,"subject":"7b2ed690-f929-43cb-84cf-177f680442f6","subject_kind":"endpoint"}

Proof

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