# Missive MCP by usefulapi (io.usefulapi/missive): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.usefulapi%2Fmissive/versions/latest)
- Connected to: https://missive.usefulapi.io/mcp
- Homepage: https://usefulapi.io/missive/
- Repository: https://github.com/m190/usefulapi-mcp
- Scoring rules: v2
- Tools: 19
- Average: 40.4 / 100 (Cloudy)
- Near-identical pairs: 1

This page shows how Missive MCP by usefulapi (io.usefulapi/missive)'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

- `missive_list_responses`: 28 / 100
  - Major: The description only restates the name (7 words).
  - Major: The description is too short (7 words).
  - 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.
- `missive_list_shared_labels`: 28 / 100
  - Major: The description only restates the name (9 words).
  - 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.
- `missive_list_teams`: 28 / 100
  - Major: The description only restates the name (9 words).
  - 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.
- `missive_list_users`: 28 / 100
  - Major: The description only restates the name (7 words).
  - Major: The description is too short (7 words).
  - 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.
- `missive_list_contact_books`: 33 / 100
  - Major: The description only restates the name (8 words).
  - 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.
- `missive_list_organizations`: 33 / 100
  - Major: The description only restates the name (8 words).
  - 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.
- `missive_list_contacts`: 36 / 100
  - Major: The description only restates the name (9 words).
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: The meaning of the boolean argument include_deleted is unclear.
  - Minor: Says nothing about what it returns.
- `missive_create_contact`: 38 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: first_name, last_name.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
- `missive_get_message`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: id.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: conversation_id, id. Name the tool or the place that returns it, or models look it up first.
- `missive_get_contact`: 43 / 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: id. Name the tool or the place that returns it, or models look it up first.
- `missive_get_conversation`: 43 / 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: id. Name the tool or the place that returns it, or models look it up first.
- `missive_list_conversation_drafts`: 43 / 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: id. Name the tool or the place that returns it, or models look it up first.
- `missive_list_conversation_comments`: 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: id. Name the tool or the place that returns it, or models look it up first.
- `missive_list_conversation_messages`: 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: id. Name the tool or the place that returns it, or models look it up first.
- `missive_list_conversation_posts`: 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: id. Name the tool or the place that returns it, or models look it up first.
- `missive_list_conversations`: 47 / 100
  - Minor: No `required` list, so every argument is optional.
  - Minor: The meaning of the boolean argument closed is unclear.
  - Minor: The meaning of the boolean argument flagged is unclear.
  - Minor: The meaning of the boolean argument snoozed is unclear.
  - Minor: The meaning of the boolean argument trashed is unclear.
  - Minor: The meaning of the boolean argument all is unclear.
  - Minor: Says nothing about what it returns.
- `missive_update_conversation`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The meaning of the boolean argument reopen is unclear.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: id. Name the tool or the place that returns it, or models look it up first.
- `missive_list_contact_groups`: 49 / 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.
- `missive_create_draft`: 60 / 100
  - Minor: String arguments with no constraint or example: subject, to_fields[].address, to_fields[].name, cc_fields[].address, cc_fields[].name, bcc_fields[].address, bcc_fields[].name, from_field.address, from_field.name.
  - Minor: Says nothing about what it returns.

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