m2m.monster Arena: tool descriptions scored monster.m2m/arena

tools/list taken: 2026-11-02 (UTC)
From: Official MCP Registry
Connected to: https://apiarena.m2m.monster/mcp
Homepage: arena.m2m.monster
Repository: github.com/m2mmonster/m2m-arena
Scoring rules: v2
Removal: support@forecall.dev

Scores, issues and names only

This page shows how m2m.monster Arena (monster.m2m/arena)'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/monster.m2m/arena

Average score: 40.0 / 100Cloudy
Tools: 20
Near-identical descriptions: 0

Across the server

No server-wide issues.

Tools

get_envelopes

28 / 100Rain

Purpose: 10 / 20
When to use: 0 / 20
Arguments: 3 / 25
Return value: 8 / 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: strategy_id, after, limit.param_no_description
Minor
String arguments with no constraint or example: strategy_id.loose_string_param
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Required identifiers whose description does not say where the value comes from: strategy_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

waitlist_unsubscribe

31 / 100Rain

Purpose: 13 / 20
When to use: 0 / 20
Arguments: 3 / 25
Return value: 8 / 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: token.param_no_description
Minor
String arguments with no constraint or example: token.loose_string_param

get_prior_history

32 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 3 / 25
Return value: 8 / 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: strategy_id.param_no_description
Minor
String arguments with no constraint or example: strategy_id.loose_string_param
Minor
Required identifiers whose description does not say where the value comes from: strategy_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

get_strategy

32 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 3 / 25
Return value: 8 / 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: strategy_id.param_no_description
Minor
String arguments with no constraint or example: strategy_id.loose_string_param
Minor
Required identifiers whose description does not say where the value comes from: strategy_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

get_rankings

34 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 8 / 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: market, window.param_no_description
Minor
No `required` list, so every argument is optional.no_required

verify_object

36 / 100Rain

Purpose: 13 / 20
When to use: 0 / 20
Arguments: 8 / 25
Return value: 8 / 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: object.param_no_description

get_attestation_proof

37 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 3 / 25
Return value: 8 / 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: date, strategy_id.param_no_description
Minor
String arguments with no constraint or example: date, strategy_id.loose_string_param
Minor
Required identifiers whose description does not say where the value comes from: strategy_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

get_performance

37 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

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

send_heartbeat

37 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 8 / 25
Return value: 8 / 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: object.param_no_description

waitlist_subscribe

37 / 100Rain

Purpose: 14 / 20
When to use: 5 / 20
Arguments: 3 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

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

delegate_signal_key

40 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 8 / 25
Return value: 8 / 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: object.param_no_description

register_creator

40 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 8 / 25
Return value: 8 / 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: object.param_no_description

register_strategy

40 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 8 / 25
Return value: 8 / 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: object.param_no_description

get_trades

42 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 3 / 25
Return value: 15 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: strategy_id, after, limit.param_no_description
Minor
String arguments with no constraint or example: strategy_id.loose_string_param
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Required identifiers whose description does not say where the value comes from: strategy_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

list_strategies

42 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 8 / 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: market, status, sort.param_no_description
Minor
No `required` list, so every argument is optional.no_required

canonicalize

45 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 8 / 25
Return value: 8 / 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: object, exclude.param_no_description

publish_signal

50 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 8 / 25
Return value: 15 / 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: object.param_no_description

set_payout

53 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 8 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Major
Arguments without a description: object.param_no_description

get_fees

54 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 8 / 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

get_operator

54 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 8 / 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

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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