# Sarbacane MCP by usefulapi (io.usefulapi/sarbacane): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.usefulapi%2Fsarbacane/versions/latest)
- Connected to: https://sarbacane.usefulapi.io/mcp
- Homepage: https://usefulapi.io/sarbacane/
- Repository: https://github.com/m190/usefulapi-mcp
- Scoring rules: v2
- Tools: 19
- Average: 46.1 / 100 (Cloudy)
- Near-identical pairs: 0

This page shows how Sarbacane MCP by usefulapi (io.usefulapi/sarbacane)'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

- `sarbacane_list_blacklists`: 41 / 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.
- `sarbacane_list_lists`: 41 / 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.
- `sarbacane_add_unsubscriber`: 43 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: email, phone.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: blacklist_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_create_contact`: 43 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: email, phone.
  - Minor: Says nothing about what it returns.
- `sarbacane_get_campaign`: 44 / 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: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_get_campaign_report`: 44 / 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: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_list_campaign_recipients`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_list_campaigns`: 44 / 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.
- `sarbacane_list_users`: 44 / 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.
- `sarbacane_list_webhooks`: 46 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `sarbacane_import_campaign_template`: 47 / 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: campaign_id, template_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_list_blacklist_entries`: 47 / 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: blacklist_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_list_contacts`: 47 / 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: list_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_set_campaign_list`: 47 / 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: campaign_id, list_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_upsert_contact`: 48 / 100
  - Minor: Arguments without a description: email, phone.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: list_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_get_credits`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `sarbacane_set_campaign_content`: 50 / 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: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_list_list_fields`: 52 / 100
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: list_id. Name the tool or the place that returns it, or models look it up first.
- `sarbacane_create_email_campaign`: 55 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.

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