Environment file validator

Open Environment file validator 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": "environment-file-validator",
  "category": "developer-tools",
  "built": true,
  "requirements": "Portable dotenv dialect: ASCII names, optional export, = assignments, # comments and literal single/double-quoted multiline values. No escape conversion, variable interpolation, shell execution or Docker Compose semantics. Up to 10,000 assignments. Use # empty for no assignments. At most 500 issue details are shown, with a count of omitted issues. Runs on your device with no configuration, repository or credential lookups. Up to 1,000,000 input characters and 4,000,000 characters per output file.",
  "implementation": {
    "fields": [],
    "live": true,
    "presentation": "metrics",
    "note": "Dialect: portable dotenv, not Docker Compose interpolation or a shell script. Names use ASCII letters, digits and underscores; the first character cannot be a digit. Optional export prefixes, # comments and literal single/double-quoted multiline values are supported. Backslash escapes and $ references are not expanded. Reports omit values and source lines. Use # empty for an environment with no assignments. Up to 10,000 assignments; up to 500 displayed issues with an omitted count. Duplicate assignments are reported, never silently overwritten. Runs on your device. No remote configuration, repository or credentials are queried. Up to 1,000,000 input characters; output files are limited to 4,000,000 characters each.",
    "experience": {
      "automatic": true,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Configuration text",
      "placeholder": "PORT=8080\nTOKEN=\"example-only\"\nEMPTY=\n",
      "help": "Paste text to process locally. Review the supported syntax and the result before downloading. Results update as you type. Up to 1,000,000 characters.",
      "helpParts": [
        "Paste text to process locally. Review the supported syntax and the result before downloading.",
        "Results update as you type.",
        "Up to 1,000,000 characters."
      ],
      "action": null
    },
    "mode": "automatic",
    "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"
  }
}

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