Checksum manifest verifier

Open Checksum manifest verifier on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "checksum-manifest-verifier",
  "category": "developer-tools",
  "built": true,
  "requirements": "Up to 2,000 files, 512 MiB total and 256 MiB per file. Paste SHA256SUMS or the Happytails JSON v1 format. Unknown, missing and mismatched files prevent a complete match. Files are never changed or fetched from manifest paths.",
  "implementation": {
    "fields": [
      {
        "key": "format",
        "label": "Manifest format",
        "value": "SHA256SUMS",
        "type": "select",
        "values": [
          "SHA256SUMS",
          "Happytails JSON v1"
        ]
      },
      {
        "key": "manifest",
        "label": "Paste the checksum manifest",
        "value": "",
        "type": "textarea",
        "maxLength": 2000000,
        "help": "Paths are relative to the selected folder contents. The manifest is data, never a command or a location to open."
      }
    ],
    "files": true,
    "input": false,
    "directory": true,
    "multiple": true,
    "deferImagePreview": true,
    "presentation": "metrics",
    "maxFileBytes": 536870912,
    "uploadHelp": "Choose one folder, up to 2,000 files and 512 MiB total; 256 MiB per file.",
    "note": "Files are read locally in bounded chunks and never changed. Only selected files are inspected. Cancel at any time.",
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Up to 1,000,000 characters. Review the settings before running.",
      "helpParts": [
        "Up to 1,000,000 characters.",
        "Review the settings before running."
      ],
      "action": null
    },
    "mode": "explicit",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

Page guide