# Tailscale MCP by usefulapi (io.usefulapi/tailscale): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.usefulapi%2Ftailscale/versions/latest)
- Connected to: https://tailscale.usefulapi.io/mcp
- Homepage: https://usefulapi.io/tailscale/
- Repository: https://github.com/m190/usefulapi-mcp
- Scoring rules: v2
- Tools: 22
- Average: 47.5 / 100 (Cloudy)
- Near-identical pairs: 0

This page shows how Tailscale MCP by usefulapi (io.usefulapi/tailscale)'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

- `tailscale_get_user`: 38 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: userId.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: userId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_delete_device`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: deviceId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_list_device_routes`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: deviceId.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: deviceId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_set_device_name`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: deviceId.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: deviceId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_get_device`: 45 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: deviceId.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: deviceId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_get_key`: 45 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: keyId.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: keyId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_create_auth_key`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
- `tailscale_list_keys`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `tailscale_list_users`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `tailscale_set_device_routes`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: deviceId.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: deviceId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_get_policy_file`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `tailscale_get_split_dns`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `tailscale_get_tailnet_settings`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `tailscale_list_devices`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `tailscale_list_dns_nameservers`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `tailscale_list_dns_searchpaths`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `tailscale_list_webhooks`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `tailscale_authorize_device`: 50 / 100
  - Minor: String arguments with no constraint or example: deviceId.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: deviceId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_delete_key`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: keyId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_expire_device_key`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: deviceId.
  - Minor: Required identifiers whose description does not say where the value comes from: deviceId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_set_device_tags`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: deviceId.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: deviceId. Name the tool or the place that returns it, or models look it up first.
- `tailscale_get_dns_preferences`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.

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