tools.clean/mcp: tool descriptions scored

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

Scores, issues and names only

This page shows how tools.clean/mcp'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/tools.clean/mcp

Average score: 88.2 / 100Clear
Tools: 42
Near-identical descriptions: 0

Across the server

Major
42 tools. Above 40, models choose less accurately.too_many_tools

Tools

convert_color

77 / 100Clear

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

No issues.

render_markdown

77 / 100Clear

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

No issues.

convert_case

79 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

color_contrast

82 / 100Clear

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

No issues.

color_palette

82 / 100Clear

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

No issues.

generate_password

82 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 22 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

generate_qr

82 / 100Clear

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

No issues.

test_regex

82 / 100Clear

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

Minor
String arguments with no constraint or example: text.loose_string_param

css_gradient

84 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

encode_decode

84 / 100Clear

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
String arguments with no constraint or example: text.loose_string_param

hash_text

84 / 100Clear

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

convert_yaml

85 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 23 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

format_sql

85 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 23 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

compound_interest

87 / 100Clear

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

No issues.

count_text

87 / 100Clear

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

Minor
String arguments with no constraint or example: text.loose_string_param

diff_text

87 / 100Clear

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

Minor
String arguments with no constraint or example: original, modified.loose_string_param

redact_text

87 / 100Clear

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

No issues.

tip

87 / 100Clear

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

No issues.

validate_cron

87 / 100Clear

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

No issues.

random_number

88 / 100Clear

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

No issues.

fancy_text

89 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

convert_data

90 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 23 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

decode_jwt

90 / 100Clear

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

No issues.

lorem_ipsum

90 / 100Clear

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

No issues.

luhn_validate

90 / 100Clear

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

No issues.

amortization_schedule

92 / 100Clear

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

No issues.

convert_number_base

92 / 100Clear

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

No issues.

convert_timestamp

92 / 100Clear

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

No issues.

convert_timezone

92 / 100Clear

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

No issues.

explain_cron

92 / 100Clear

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

No issues.

format_json

92 / 100Clear

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

No issues.

interest_rate

92 / 100Clear

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

No issues.

percentage

92 / 100Clear

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

No issues.

strftime_preview

92 / 100Clear

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

No issues.

tvm_solve

92 / 100Clear

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

No issues.

generate_id

93 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 21 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

convert_units

94 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
String arguments with no constraint or example: to.loose_string_param

expand_rrule

94 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

query_json

94 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

slugify

94 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 22 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

uuid_v4

95 / 100Clear

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

No issues.

apr_calc

97 / 100Clear

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

No issues.

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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