# Charter Boats (boats.charter/charter-boats): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/boats.charter%2Fcharter-boats/versions/latest)
- Connected to: https://charter.boats/mcp
- Homepage: https://charter.boats/mcp
- Repository: https://github.com/dkremsa/charter-boats-mcp
- Scoring rules: v2
- Tools: 46
- Average: 51.5 / 100 (Cloudy)
- Near-identical pairs: 3

This page shows how Charter Boats (boats.charter/charter-boats)'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

- Major: 46 tools. Above 40, models choose less accurately.
- 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

- `delete_fee`: 33 / 100
  - Major: The description only restates the name (5 words).
  - Major: The description is too short (5 words).
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: id, fee_id. Name the tool or the place that returns it, or models look it up first.
- `search_trips`: 33 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: location_id, boat_type, min_days, max_days, limit.
  - Minor: String arguments with no constraint or example: location_id, boat_type, activities.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `search_routes`: 34 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: location_id, difficulty, limit.
  - Minor: String arguments with no constraint or example: location_id.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `search_pois`: 36 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: location_id, category, limit.
  - Minor: String arguments with no constraint or example: location_id.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `delete_boat_image`: 37 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: image_id.
  - Minor: String arguments with no constraint or example: image_id.
  - Minor: Says nothing about what it returns.
- `list_boats`: 41 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `add_price`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: start_month, start_day, end_month, end_day.
  - Minor: String arguments with no constraint or example: name.
  - Minor: The description mentions none of its 3 or more arguments.
  - 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.
- `delete_discount`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - 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.
- `delete_price`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: id, price_id. Name the tool or the place that returns it, or models look it up first.
- `list_calendars`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: boat_id. Name the tool or the place that returns it, or models look it up first.
- `remove_calendar`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - 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.
- `update_price`: 44 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: start_month, start_day, end_month, end_day.
  - Minor: String arguments with no constraint or example: name.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Required identifiers whose description does not say where the value comes from: id, price_id. Name the tool or the place that returns it, or models look it up first.
- `get_pricing`: 46 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `search_content`: 47 / 100
  - Major: Arguments without a description: type, limit.
  - Minor: Says nothing about what it returns.
- `add_block`: 48 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: reason, notes.
  - Minor: String arguments with no constraint or example: start_at, end_at, reason, notes.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Required identifiers whose description does not say where the value comes from: boat_id. Name the tool or the place that returns it, or models look it up first.
- `get_availability`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `get_boat`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - 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.
- `get_cancellation_limits`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: id.
  - 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.
- `get_earnings`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `list_boat_fees`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - 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.
- `list_bookings`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `remove_block`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - 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.
- `update_boat`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: title, description, boat_type, cabins, berths, toilets, year, manufacturer_id, model, rental_type, instant_book, min_charter_days.
  - Minor: String arguments with no constraint or example: title, description, boat_type, manufacturer_id, model, rental_type, checkin_time, checkout_time.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: The meaning of the boolean argument instant_book is unclear.
  - 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.
- `update_company`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: name, description, about, logo_url, cover_image_url, website_url, phone, address_line1, address_line2, city, state, postal_code, country_code.
  - Minor: String arguments with no constraint or example: name, description, about, logo_url, cover_image_url, website_url, phone, address_line1, address_line2, city, state, postal_code, country_code, invoice_email, legal_name, registration_number, vat_number, tax_id, bic_swift, bank_name, usd_bic_swift, usd_bank_name.
  - Minor: The meaning of the boolean argument vat_registered is unclear.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `sync_calendar`: 51 / 100
  - Major: Says nothing about when to use it, or when not to.
  - 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.
- `get_booking`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - 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.
- `update_discount`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: code, boat_ids, max_uses, is_active.
  - Minor: String arguments with no constraint or example: code, discount_type.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: The meaning of the boolean argument is_active is unclear.
  - 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.
- `search_locations`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: city, limit.
  - Minor: String arguments with no constraint or example: city.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `update_fee`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: category, on_request, amount_is_percentage.
  - Minor: String arguments with no constraint or example: category, valid_from, valid_to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: The meaning of the boolean argument on_request is unclear.
  - Minor: The meaning of the boolean argument amount_is_percentage is unclear.
  - Minor: Required identifiers whose description does not say where the value comes from: id, fee_id. Name the tool or the place that returns it, or models look it up first.
- `list_discounts`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `set_cross_lock`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: enabled, sync_existing.
  - Minor: The meaning of the boolean argument enabled is unclear.
  - Minor: The meaning of the boolean argument sync_existing is unclear.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `set_equipment_visibility`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: hidden.
  - Minor: The meaning of the boolean argument hidden is unclear.
  - 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.
- `update_boat_images`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `add_calendar`: 56 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: source_type.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Required identifiers whose description does not say where the value comes from: boat_id. Name the tool or the place that returns it, or models look it up first.
- `add_fee`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: category, on_request, amount_is_percentage.
  - Minor: String arguments with no constraint or example: category, valid_from, valid_to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: The meaning of the boolean argument on_request is unclear.
  - Minor: The meaning of the boolean argument amount_is_percentage is unclear.
  - 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.
- `get_trip_details`: 57 / 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.
- `create_discount`: 59 / 100
  - Minor: Arguments without a description: boat_ids, max_uses.
  - Minor: String arguments with no constraint or example: discount_type.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `get_company`: 59 / 100
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `get_opportunities`: 62 / 100
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `get_poi_details`: 62 / 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.
- `get_location_details`: 64 / 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.
- `set_cancellation_policy`: 64 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: company_id. Name the tool or the place that returns it, or models look it up first.
- `compare_boat`: 68 / 100
  - Minor: Says nothing about what it returns.
- `get_boat_details`: 68 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - 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.
- `get_boat_standouts`: 71 / 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.
- `search_boats`: 84 / 100
  - Minor: The description is long (697 words). It helps selection but costs steps and tokens.
  - Minor: Arguments without a description: boat_type, limit.
  - Minor: String arguments with no constraint or example: date_from, date_to.
  - Minor: No `required` list, so every argument is optional.

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