Utility Matrix: tool descriptions scored io.github.helphub369/utility-matrix

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

Scores, issues and names only

This page shows how Utility Matrix (io.github.helphub369/utility-matrix)'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/io.github.helphub369/utility-matrix

Average score: 76.1 / 100Clear
Tools: 31
Near-identical descriptions: 0

Across the server

Minor
31 tools. Above 25, models start to tell tools apart less well.many_tools
Minor
The server has no instructions. Say there, once, what the server is for and when to use it: Claude Code and Gemini CLI read the instructions before the tool descriptions.instructions_missing

Tools

canonical-url-auditor

62 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 25 / 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

dockerfile-linter

62 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 25 / 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

query-cost-estimator

65 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
The description mentions none of its 3 or more arguments.params_not_in_description

certificate-expiry-checker

66 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 15 / 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

kubernetes-manifest-linter

66 / 100Cloudy

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 15 / 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

rightsizing-calculator

68 / 100Cloudy

Purpose: 13 / 20
When to use: 10 / 20
Arguments: 25 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

total-cost-of-ownership-calculator

71 / 100Clear

Purpose: 13 / 20
When to use: 10 / 20
Arguments: 25 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

deployment-frequency-calculator

72 / 100Clear

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 25 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

known-vulnerability-checker

72 / 100Clear

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 25 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

software-purchase-risk-calculator

72 / 100Clear

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 25 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

cluster-capacity-calculator

75 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

connection-pool-calculator

75 / 100Clear

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

No issues.

on-call-burden-calculator

75 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

rate-limit-utilization-calculator

75 / 100Clear

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

Major
Says nothing about when to use it, or when not to.no_usage_context

terraform-plan-cost-estimator

75 / 100Clear

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 25 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

detect-secrets-scanner

77 / 100Clear

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

Major
Says nothing about when to use it, or when not to.no_usage_context

pipeline-cost-calculator

78 / 100Clear

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

No issues.

change-failure-rate-calculator

79 / 100Clear

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

No issues.

availability-sla-calculator

80 / 100Clear

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

No issues.

dora-metrics-calculator

80 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

mttr-calculator

80 / 100Clear

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

No issues.

alert-fatigue-calculator

82 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

apdex-score-calculator

82 / 100Clear

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

No issues.

cloud-waste-calculator

82 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

ec2-cost-calculator

82 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

error-budget-calculator

82 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

precision-recall-f1-calculator

82 / 100Clear

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

No issues.

slo-burn-rate-calculator

82 / 100Clear

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

No issues.

egress-cost-calculator

85 / 100Clear

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

No issues.

incident-cost-calculator

85 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

reserved-instance-breakeven

90 / 100Clear

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

Minor
The description mentions none of its 3 or more arguments.params_not_in_description

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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