Toolbox

Check text for AI-writing tells (em-dashes, 'not just X but Y', rule-of-three lists, stock vocabulary like delve or seamlessly, hedge words, smart quotes, hidden Unicode) and return a score, each tell with its position, and a cleaned copy. Run it on anything you are about to publish on a human's behalf.

{
  "type": "object",
  "properties": {
    "text": {
      "type": "string",
      "description": "The text to check. Free tier: 3,000 chars."
    }
  },
  "required": [
    "text"
  ]
}

Estimate what an MCP server's tools/list costs in tokens on every session start, per tool, with the three most expensive tools and flags for oversized descriptions, base64 blobs and echoed schemas. Pass a live Streamable HTTP endpoint or a tools array.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Streamable HTTP MCP endpoint"
    },
    "tools": {
      "type": "array",
      "description": "Tool definitions, if the server is not reachable over HTTP",
      "items": {
        "type": "object"
      }
    }
  }
}

Lint a CLAUDE.md, AGENTS.md or MEMORY.md: line count against Claude Code's 200-line memory index cap, estimated tokens, duplicate lines, contradicting rules, leftover TODO markers, hidden characters, empty headings.

{
  "type": "object",
  "properties": {
    "text": {
      "type": "string",
      "description": "File contents"
    },
    "filename": {
      "type": "string",
      "description": "e.g. CLAUDE.md or MEMORY.md; changes the severity of the line cap"
    }
  },
  "required": [
    "text"
  ]
}

Generate install snippets for an MCP endpoint (Claude Code, Claude Desktop, Cursor, Codex, VS Code, curl) and probe the endpoint once to confirm it answers initialize and tools/list.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string"
    },
    "name": {
      "type": "string",
      "description": "Server name to use in configs"
    },
    "headerName": {
      "type": "string"
    },
    "headerValue": {
      "type": "string"
    },
    "probe": {
      "type": "boolean",
      "default": true
    }
  },
  "required": [
    "url"
  ]
}

Read a site's robots.txt and report which AI crawlers (GPTBot, ClaudeBot, Google-Extended, PerplexityBot, CCBot, Bytespider and more) are allowed, blocked or partially blocked; check for llms.txt and draft one from the site's metadata and sitemap.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Any URL on the site"
    }
  },
  "required": [
    "url"
  ]
}

Fetch a URL once and grade its response headers: HSTS, Content-Security-Policy, X-Content-Type-Options, frame control, Referrer-Policy, Permissions-Policy, Cache-Control, cookie Secure/HttpOnly/SameSite flags, and server version leaks. Returns a grade, a score and the exact header to add for each gap.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "The page to fetch"
    }
  },
  "required": [
    "url"
  ]
}

Fetch a URL and report what crawlers and link unfurlers see: title and meta description with lengths, canonical, lang, viewport, robots meta, h1s, Open Graph and Twitter card tags, favicon, JSON-LD types, the resulting preview card, and findings for anything missing or too long.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "The page to fetch"
    }
  },
  "required": [
    "url"
  ]
}

Turn a JSON sample (or an array of samples of the same shape) into a JSON Schema draft 2020-12 and a TypeScript type. Infers required vs optional keys across samples, nullable fields, integer vs number, date/email/uri/uuid formats, and small enums. Use it to draft an MCP tool inputSchema from an example payload.

{
  "type": "object",
  "properties": {
    "json": {
      "type": "string",
      "description": "The JSON text. Free tier: 20,000 chars."
    },
    "name": {
      "type": "string",
      "description": "Type name, default Root"
    }
  },
  "required": [
    "json"
  ]
}

Explain a five-field cron expression in plain English, list the next runs in UTC, and warn about the cases Cloudflare Workers, GitHub Actions and crontab handle differently (nicknames, six fields, day-of-month plus day-of-week, sub-5-minute intervals, day 31).

{
  "type": "object",
  "properties": {
    "expression": {
      "type": "string",
      "description": "e.g. 0 */6 * * 1-5"
    },
    "count": {
      "type": "integer",
      "description": "How many next runs to list, 1 to 20, default 5"
    },
    "from": {
      "type": "string",
      "description": "ISO date to compute next runs from, default now"
    }
  },
  "required": [
    "expression"
  ]
}

Scrub a .env file into a safe .env.example: every value is blanked or replaced with a placeholder that keeps its shape (postgres://USER:PASSWORD@HOST/DB). Returns the example, the secrets found (AWS, GitHub, Stripe, Slack, Google, OpenAI, Anthropic, Resend, SendGrid, Twilio, Cloudflare, JWTs, private keys, database URLs, high-entropy strings) by key, kind and line with only the first 4 characters and the length, and findings for duplicate keys, non-UPPER_SNAKE names, unbalanced quotes, export prefixes and trailing spaces.

{
  "type": "object",
  "properties": {
    "text": {
      "type": "string",
      "description": "The .env file contents. Free tier: 20,000 chars."
    }
  },
  "required": [
    "text"
  ]
}

Trace a URL's redirect chain hop by hop (up to 10 hops, 8 s each) with status, location, timing and scheme per hop. Flags chains over two redirects, loops, HTTPS-to-HTTP downgrades, 302s used for www or https canonicalisation, dropped paths or query strings, cross-domain moves, meta-refresh or JS redirects on a 200, and a final page that is not 200.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to trace, e.g. http://example.com"
    }
  },
  "required": [
    "url"
  ]
}

Check a site's sitemaps: discovers them from robots.txt, /sitemap.xml and /sitemap_index.xml, reads index files one level deep (20 children max), counts URLs per file and per host, summarises lastmod, and fetches a sample of URLs (HEAD, then GET) to count the ones that are not 200. Flags a missing sitemap, no robots.txt entry, over 50,000 URLs, other hosts, http URLs on https sites and missing lastmod.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Any URL on the site"
    },
    "sample": {
      "type": "integer",
      "description": "How many sitemap URLs to fetch, default 10, max 25 on free and 100 on Pro"
    }
  },
  "required": [
    "url"
  ]
}

Decode a JWT's header and payload without verifying the signature (it never takes a secret). Returns the claims with iat, nbf and exp as ISO times, a plain-text expiresIn, issuer, subject and audience, and findings: alg none, HS* with a URL-like kid, missing or distant exp, expired, nbf or iat in the future, payload over 4 KB, sensitive field names, and jku or x5u pointing off-site.

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "The JWT, three dot-separated parts. A leading Bearer is ignored."
    }
  },
  "required": [
    "token"
  ]
}