# FernTool Network Tools (com.ferntool/ip): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.ferntool%2Fip/versions/latest)
- Connected to: https://www.ferntool.com/mcp
- Homepage: https://www.ferntool.com/api
- Scoring rules: v2
- Tools: 25
- Average: 40.0 / 100 (Cloudy)
- Near-identical pairs: 0

This page shows how FernTool Network Tools (com.ferntool/ip)'s tool descriptions scored, the issues found and the names of its tools and parameters. The descriptions are the server's own: read them where the copy came from.

Forecall asked the URL this server lists in the official MCP Registry for its tools/list once, on the date above, without calling any tool. The server may have changed since.

## Across the server

No server-wide issues.

## Tools

- `dns_lookup`: 20 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: domain, types.
  - Minor: String arguments with no constraint or example: domain.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `reverse_dns`: 20 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: ip.
  - Minor: String arguments with no constraint or example: ip.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `validate_ip`: 20 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: ip.
  - Minor: String arguments with no constraint or example: ip.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `ai_service_status`: 22 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: service.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `estimate_ai_cost`: 28 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: text, tokens.
  - Minor: String arguments with no constraint or example: text.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `batch_lookup_ip`: 29 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: ips.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `count_words`: 30 / 100
  - Major: Arguments without a description: text.
  - Minor: String arguments with no constraint or example: text.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `random_number`: 34 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: unique, sort.
  - Minor: No `required` list, so every argument is optional.
  - Minor: The meaning of the boolean argument unique is unclear.
  - Minor: Says nothing about what it returns.
- `date_calc`: 35 / 100
  - Minor: Arguments without a description: add_days, add_weeks, add_months, add_years.
  - Minor: String arguments with no constraint or example: end.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `check_dns_propagation`: 41 / 100
  - Minor: Arguments without a description: domain.
  - Minor: String arguments with no constraint or example: domain.
  - Minor: Says nothing about what it returns.
- `analyze_email_headers`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `lookup_ip`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `generate_spf_record`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: ips, includes.
  - Minor: No `required` list, so every argument is optional.
  - Major: It may be destructive, but destructiveHint is not set.
- `make_qr_code`: 45 / 100
  - Minor: Arguments without a description: text.
  - Minor: String arguments with no constraint or example: text.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `subnet_calc`: 45 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `check_website_legit`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `get_current_time`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `trace_redirects`: 48 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `whois_lookup`: 48 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `check_email_security`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
- `convert_timezone`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `pick_random`: 50 / 100
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `get_my_ip`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `check_website_status`: 55 / 100
- `convert_timestamp`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.

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