{
  "title": "Topsoil calculator",
  "human_url": "https://happytails.ai/en/calculators/topsoil-calculator/",
  "agent_url": "https://happytails.ai/agents/en/calculators/topsoil-calculator/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/calculators/topsoil-calculator.md",
  "content": "Topsoil calculator\nEstimate material quantities locally from dimensions, waste and explicit material assumptions.\nHow can we improve this tool?\nReport a problem or share an idea.\nPlease leave out private information. Your message and the tool name go to our team via PostHog.\nHow to use Topsoil calculator\nEnter dimensions and assumptions.\nReview the volume, quantity and assumptions.\nDownload or copy the complete estimate.\nUseful next steps\nAsphalt calculator\nConcrete calculator\nBrick calculator\nTransparent quantity estimate\nEvery result shows the dimensions, waste allowance and material assumptions used.\nCheck before ordering\nConfirm the site dimensions, product labels and local guidance before buying material.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [
    {
      "name": "Asphalt calculator",
      "url": "https://happytails.ai/en/calculators/asphalt-calculator/"
    },
    {
      "name": "Concrete calculator",
      "url": "https://happytails.ai/en/calculators/concrete-calculator/"
    },
    {
      "name": "Brick calculator",
      "url": "https://happytails.ai/en/calculators/brick-calculator/"
    }
  ],
  "tool": {
    "id": "topsoil-calculator",
    "category": "calculators",
    "built": true,
    "requirements": "Runs locally with bounded metric inputs. Material density, bag volume and waste are entered assumptions, not supplier or structural advice.",
    "implementation": {
      "fields": [
        {
          "key": "length",
          "label": "Length (m)",
          "value": 1,
          "type": "number",
          "min": 0,
          "step": "any"
        },
        {
          "key": "width",
          "label": "Width (m)",
          "value": 1,
          "type": "number",
          "min": 0,
          "step": "any"
        },
        {
          "key": "depth",
          "label": "Depth (m)",
          "value": 0.1,
          "type": "number",
          "min": 0,
          "step": "any"
        }
      ],
      "input": false,
      "presentation": "metrics",
      "note": "Runs locally in your browser. Material quantities are estimates from your dimensions and assumptions; verify with a supplier or qualified professional.",
      "example": {
        "input": "",
        "options": {
          "length": 1,
          "width": 1,
          "depth": 0.1
        }
      },
      "experience": {
        "automatic": false,
        "single": false,
        "inputMaxLength": 1000000,
        "inputMode": "text",
        "label": "Dimensions JSON",
        "placeholder": "{\"length\": 10, \"width\": 5, \"depth\": 0.15, \"densityTPerM3\": 1.3, \"bagLitres\": 40, \"waste\": 10}",
        "help": "Use the documented numeric fields. 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"
    }
  },
  "markdown": "# Topsoil calculator\n\n- Human page: https://happytails.ai/en/calculators/topsoil-calculator/\n- Markdown: https://happytails.ai/en/calculators/topsoil-calculator.md\n- Structured JSON: https://happytails.ai/agents/en/calculators/topsoil-calculator/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `topsoil-calculator` |\n| Category | calculators |\n| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |\n| Browser execution | Use the visible action or interactive controls. |\n| Browser processing | Browser; see tool notes for network behavior. |\n| HTTP API | Not callable through HTTP. |\n| Browser-agent interface | run_current_tool |\n\n### Implementation notes\n\nRuns locally in your browser. Material quantities are estimates from your dimensions and assumptions; verify with a supplier or qualified professional.\n\n### Inputs and settings\n\nNo free-text input is required. Use the file inputs and/or settings below.\n\n| Setting | Meaning | Control type | Default | Constraints |\n| --- | --- | --- | --- | --- |\n| `length` | Length (m) | number | 1 | min=0 step=any |\n| `width` | Width (m) | number | 1 | min=0 step=any |\n| `depth` | Depth (m) | number | 0.1 | min=0 step=any |\n\n### Browser-agent workflow\n\n1. Open the human page in a browser that supports WebMCP.\n2. Discover the interface exposed by that page; use its actual schema.\n3. Select files on the page first when the tool requires files.\n4. Call `run_current_tool` with valid input and settings.\n5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.\n\nCalls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.\n\n### Planning specification\n\nRuns locally with bounded metric inputs. Material density, bag volume and waste are entered assumptions, not supplier or structural advice.\n\nThis describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.\n\n### Complete machine-readable capability record\n\n```json\n{\n  \"id\": \"topsoil-calculator\",\n  \"category\": \"calculators\",\n  \"built\": true,\n  \"requirements\": \"Runs locally with bounded metric inputs. Material density, bag volume and waste are entered assumptions, not supplier or structural advice.\",\n  \"implementation\": {\n    \"fields\": [\n      {\n        \"key\": \"length\",\n        \"label\": \"Length (m)\",\n        \"value\": 1,\n        \"type\": \"number\",\n        \"min\": 0,\n        \"step\": \"any\"\n      },\n      {\n        \"key\": \"width\",\n        \"label\": \"Width (m)\",\n        \"value\": 1,\n        \"type\": \"number\",\n        \"min\": 0,\n        \"step\": \"any\"\n      },\n      {\n        \"key\": \"depth\",\n        \"label\": \"Depth (m)\",\n        \"value\": 0.1,\n        \"type\": \"number\",\n        \"min\": 0,\n        \"step\": \"any\"\n      }\n    ],\n    \"input\": false,\n    \"presentation\": \"metrics\",\n    \"note\": \"Runs locally in your browser. Material quantities are estimates from your dimensions and assumptions; verify with a supplier or qualified professional.\",\n    \"example\": {\n      \"input\": \"\",\n      \"options\": {\n        \"length\": 1,\n        \"width\": 1,\n        \"depth\": 0.1\n      }\n    },\n    \"experience\": {\n      \"automatic\": false,\n      \"single\": false,\n      \"inputMaxLength\": 1000000,\n      \"inputMode\": \"text\",\n      \"label\": \"Dimensions JSON\",\n      \"placeholder\": \"{\\\"length\\\": 10, \\\"width\\\": 5, \\\"depth\\\": 0.15, \\\"densityTPerM3\\\": 1.3, \\\"bagLitres\\\": 40, \\\"waste\\\": 10}\",\n      \"help\": \"Use the documented numeric fields. Up to 1,000,000 characters. Review the settings before running.\",\n      \"action\": null\n    },\n    \"mode\": \"explicit\",\n    \"interactive\": false\n  },\n  \"execution\": \"Browser interface\",\n  \"api\": null,\n  \"browser_agent\": {\n    \"supported\": true,\n    \"name\": \"run_current_tool\",\n    \"discovery\": \"WebMCP on the human page in a supporting browser\",\n    \"verification\": \"See audit/API-AUDIT.md; availability is not verification\"\n  }\n}\n```\n\n## Page guide\n\nEstimate material quantities locally from dimensions, waste and explicit material assumptions.\n\nHow can we improve this tool?\n\nReport a problem or share an idea.\n\nPlease leave out private information. Your message and the tool name go to our team via PostHog.\n\n### How to use Topsoil calculator\n\n1. Enter dimensions and assumptions.\n2. Review the volume, quantity and assumptions.\n3. Download or copy the complete estimate.\n\n## Useful next steps\n\n- [Asphalt calculator](https://happytails.ai/en/calculators/asphalt-calculator/) ([Markdown](https://happytails.ai/en/calculators/asphalt-calculator.md))\n\n- [Concrete calculator](https://happytails.ai/en/calculators/concrete-calculator/) ([Markdown](https://happytails.ai/en/calculators/concrete-calculator.md))\n\n- [Brick calculator](https://happytails.ai/en/calculators/brick-calculator/) ([Markdown](https://happytails.ai/en/calculators/brick-calculator.md))\n\n## Transparent quantity estimate\n\nEvery result shows the dimensions, waste allowance and material assumptions used.\n\n### Check before ordering\n\nConfirm the site dimensions, product labels and local guidance before buying material.\n"
}