CosVoice: tool descriptions scored com.cosvoice/cosvoice

tools/list taken: 2026-11-02 (UTC)
From: Official MCP Registry
Connected to: https://cosvoice.com/mcp
Homepage: cosvoice.com
Repository: github.com/andyfathollahi/cosvoice-mcp
Scoring rules: v2
Removal: support@forecall.dev

Scores, issues and names only

This page shows how CosVoice (com.cosvoice/cosvoice)'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.

servers/com.cosvoice/cosvoice

Average score: 37.9 / 100Rain
Tools: 27
Near-identical descriptions: 0

Across the server

Minor
27 tools. Above 25, models start to tell tools apart less well.many_tools

Tools

get_email

18 / 100Rain

Purpose: 6 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
The description only restates the name (8 words).restates_name
Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: email_id.param_no_description
Minor
String arguments with no constraint or example: email_id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: email_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

list_calls

23 / 100Rain

Purpose: 6 / 20
When to use: 0 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
The description only restates the name (6 words).restates_name
Major
The description is too short (6 words).too_short
Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: limit.param_no_description
Minor
Says nothing about what it returns.no_return_info

get_call

25 / 100Rain

Purpose: 13 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: call_id.param_no_description
Major
The name is made of generic words only.generic_name
Minor
String arguments with no constraint or example: call_id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: call_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

remove_contact

25 / 100Rain

Purpose: 13 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: phone.param_no_description
Minor
String arguments with no constraint or example: phone.loose_string_param
Minor
Says nothing about what it returns.no_return_info

list_messages

27 / 100Rain

Purpose: 10 / 20
When to use: 0 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
The description is too short (7 words).too_short
Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: limit.param_no_description
Minor
Says nothing about what it returns.no_return_info

add_contact

28 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 7 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: name, phone, role, notes.param_no_description
Minor
String arguments with no constraint or example: name, phone.loose_string_param
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Says nothing about what it returns.no_return_info

list_history

29 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 8 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: type, query, limit, format.param_no_description
Minor
String arguments with no constraint or example: query.loose_string_param
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Says nothing about what it returns.no_return_info

list_emails

31 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: limit.param_no_description
Minor
Says nothing about what it returns.no_return_info

list_reservations

31 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: limit.param_no_description
Minor
Says nothing about what it returns.no_return_info

recent_activity

31 / 100Rain

Purpose: 14 / 20
When to use: 5 / 20
Arguments: 5 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: since.param_no_description
Minor
String arguments with no constraint or example: since.loose_string_param
Minor
Says nothing about what it returns.no_return_info

annotate_call

34 / 100Rain

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 7 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: call_id, note.param_no_description
Minor
String arguments with no constraint or example: call_id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: call_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

search_numbers

34 / 100Rain

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: area_code, country.param_no_description
Minor
Says nothing about what it returns.no_return_info

set_webhook

36 / 100Rain

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: url.param_no_description
Minor
String arguments with no constraint or example: url.loose_string_param

forward_email

37 / 100Rain

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 5 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: email_id, to.param_no_description
Minor
String arguments with no constraint or example: email_id, to.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: email_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

get_line

42 / 100Cloudy

Purpose: 10 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info

list_contacts

42 / 100Cloudy

Purpose: 10 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
The description is too short (6 words).too_short
Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info

send_email

42 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 15 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Arguments without a description: subject, body.param_no_description
Minor
Says nothing about what it returns.no_return_info

update_settings

42 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 13 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: name, voice, owner_name, owner_phone, timezone, notify_email, agent_email, forward_email, forward_mode, sms_opt_in, pronunciations[].word, pronunciations[].sayAs.param_no_description
Minor
String arguments with no constraint or example: name, owner_name, owner_phone, timezone, notify_email, agent_email, forward_email, pronunciations[].word, pronunciations[].sayAs.loose_string_param
Minor
The meaning of the boolean argument sms_opt_in is unclear.vague_boolean
Minor
Says nothing about what it returns.no_return_info

get_account

45 / 100Cloudy

Purpose: 13 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info

get_settings

46 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info

list_integrations

46 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info

send_text

46 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 7 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: to, body.param_no_description
Minor
String arguments with no constraint or example: to.loose_string_param

set_bot_push

49 / 100Cloudy

Purpose: 17 / 20
When to use: 15 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: url, events.param_no_description
Minor
String arguments with no constraint or example: url.loose_string_param
Minor
Says nothing about what it returns.no_return_info

place_call

51 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 12 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Major
Arguments without a description: to, callee_name, desired_resolution, slots, paths.param_no_description
Minor
String arguments with no constraint or example: to, callee_name, desired_resolution.loose_string_param
Minor
Says nothing about what it returns.no_return_info

ack_instructions

52 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
The meaning of the boolean argument all is unclear.vague_boolean
Minor
Says nothing about what it returns.no_return_info

create_line

54 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 15 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Arguments without a description: area_code, owner_name, timezone, voice, notify_email.param_no_description
Minor
String arguments with no constraint or example: phone_number, area_code, owner_name, notify_email.loose_string_param

book_reservation

56 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 12 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Major
Arguments without a description: venue_name, venue_phone, party_size, fallback_times, prefer, seating, occasion, dietary, accept_waitlist, accept_next_day, max_minutes.param_no_description
Minor
String arguments with no constraint or example: venue_name, venue_phone, earliest, latest, occasion, dietary.loose_string_param
Minor
The meaning of the boolean argument accept_waitlist is unclear.vague_boolean
Minor
The meaning of the boolean argument accept_next_day is unclear.vague_boolean

What static scoring cannot tell

This score reads only the text of each description and schema: it says what is written, not what a model will do. Short tools whose names already say what they do, such as browser_close, score low here even when models use them well, and in our measurements current models chose the right tool in one step even from one-line descriptions, as long as the names and schemas differed. What the text cannot show, such as what happens over several steps and whether an added sentence helps or misleads, is what an evaluation measures, on the Pro and Team plans.

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