NOAA Tides and Currents: tool descriptions scored io.github.RyanCardin15/noaa-tides-and-currents-mcp

tools/list taken: 2026-11-02 (UTC)
From: Official MCP Registry
Connected to: https://perigeetides.com/mcp
Homepage: perigeetides.com/developers
Repository: github.com/RyanCardin15/Perigee-Tides
Scoring rules: v2
Removal: support@forecall.dev

Scores, issues and names only

This page shows how NOAA Tides and Currents (io.github.RyanCardin15/noaa-tides-and-currents-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/io.github.RyanCardin15/noaa-tides-and-currents-mcp

Average score: 77.0 / 100Clear
Tools: 26
Near-identical descriptions: 0

Across the server

Minor
26 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

astro_get_moon_phase

67 / 100Cloudy

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

Minor
No `required` list, so every argument is optional.no_required

astro_get_sun_times

68 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 23 / 25
Return value: 8 / 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

noaa_get_reference_guide

68 / 100Cloudy

Purpose: 20 / 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

astro_get_sun_position

70 / 100Clear

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

No issues.

noaa_get_harmonic_constituents

70 / 100Clear

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

No issues.

noaa_get_station_info

70 / 100Clear

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

nws_get_wind_forecast

70 / 100Clear

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

noaa_get_sea_level_rise_projections

72 / 100Clear

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

Minor
No `required` list, so every argument is optional.no_required

noaa_get_sea_level_trends

72 / 100Clear

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

Minor
No `required` list, so every argument is optional.no_required

noaa_get_extreme_water_levels

75 / 100Clear

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

No issues.

noaa_get_meteorological_data

77 / 100Clear

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 24 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 10 / 10

No issues.

noaa_get_water_level_summaries

77 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 24 / 25
Return value: 8 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

No issues.

perigee_whoami

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.

astro_get_next_sun_event

79 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 24 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

noaa_get_current_predictions

79 / 100Clear

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 24 / 25
Return value: 15 / 15
Constraints and side effects: 10 / 10
Examples: 10 / 10

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

noaa_get_currents

79 / 100Clear

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 24 / 25
Return value: 15 / 15
Constraints and side effects: 10 / 10
Examples: 10 / 10

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

noaa_get_high_tide_flooding

79 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 24 / 25
Return value: 8 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

astro_get_next_moon_phase

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.

noaa_find_nearest_stations

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.

noaa_get_station_datums

80 / 100Clear

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

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

noaa_get_tide_predictions

81 / 100Clear

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 24 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

No issues.

noaa_get_top_ten_water_levels

82 / 100Clear

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

No issues.

nws_get_marine_forecast

82 / 100Clear

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

No issues.

noaa_get_prediction_offsets

85 / 100Clear

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

No issues.

noaa_search_stations

87 / 100Clear

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

Minor
No `required` list, so every argument is optional.no_required

noaa_get_water_levels

94 / 100Clear

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 24 / 25
Return value: 15 / 15
Constraints and side effects: 10 / 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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