# Project Gumball (com.gumballtools/platform): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.gumballtools%2Fplatform/versions/latest)
- Connected to: https://gumballtools.com/api/mcp
- Homepage: https://gumballtools.com/
- Repository: https://github.com/bwalvoord/gumball
- Scoring rules: v2
- Tools: 25
- Average: 65.4 / 100 (Cloudy)
- Near-identical pairs: 0

This page shows how Project Gumball (com.gumballtools/platform)'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

- 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.

## Tools

- `vocab_draw`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: difficulty, theme.
  - Minor: No `required` list, so every argument is optional.
- `vocab_check`: 50 / 100
  - 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.
- `validate_xml`: 52 / 100
  - Minor: Says nothing about what it returns.
- `regex_explain`: 55 / 100
  - Minor: Says nothing about what it returns.
- `validate_yaml`: 57 / 100
  - Minor: Says nothing about what it returns.
- `validate_json`: 59 / 100
- `offside`: 61 / 100
  - Minor: Arguments without a description: sport, situation.
- `round_cash_total`: 61 / 100
  - Minor: Arguments without a description: rule.
  - Minor: Says nothing about what it returns.
- `json_to_types`: 62 / 100
- `rounding_impact`: 62 / 100
  - Major: Arguments without a description: taxRatePercent, rule.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
- `check_digit_run`: 64 / 100
  - Minor: Says nothing about what it returns.
- `color_analyse`: 65 / 100
  - Minor: Says nothing about what it returns.
- `offside_rule_contrast`: 66 / 100
- `validate_csv`: 66 / 100
- `iso_week_run`: 67 / 100
  - Minor: Says nothing about what it returns.
- `amortize_schedule`: 69 / 100
  - Minor: Arguments without a description: dayCountBasis, paymentFrequency.
- `cron_build`: 70 / 100
  - Minor: Says nothing about what it returns.
- `body_metrics`: 72 / 100
  - Minor: Arguments without a description: targetBmi.
- `timezone_convert`: 72 / 100
- `equation_steps_run`: 74 / 100
- `validate_auto`: 74 / 100
- `cron_explain`: 75 / 100
  - Minor: Says nothing about what it returns.
- `due_date`: 78 / 100
- `cron_next_runs`: 79 / 100
- `price_band`: 79 / 100
  - Minor: The description mentions none of its 3 or more arguments.

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