Heimster – Swiss homes: tool descriptions scored ch.heimster/heimster

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

Scores, issues and names only

This page shows how Heimster – Swiss homes (ch.heimster/heimster)'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/ch.heimster/heimster

Average score: 53.8 / 100Cloudy
Tools: 18
Near-identical descriptions: 0

Across the server

No server-wide issues.

Tools

search

36 / 100Rain

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: query.param_no_description
Minor
String arguments with no constraint or example: query.loose_string_param

fetch

38 / 100Rain

Purpose: 14 / 20
When to use: 0 / 20
Arguments: 5 / 25
Return value: 7 / 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
Major
Arguments without a description: id.param_no_description
Minor
String arguments with no constraint or example: id.loose_string_param

book_viewing

45 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 8 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: listing_id, viewing_id, name, email, phone, party_size.param_no_description
Minor
String arguments with no constraint or example: listing_id, viewing_id, name, email, phone.loose_string_param
Minor
Says nothing about what it returns.no_return_info

register_purchase_interest

47 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Major
Arguments without a description: listing_id, phone, message, financing.param_no_description
Minor
String arguments with no constraint or example: listing_id, phone, message.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: listing_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

search_new_builds

48 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 13 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Minor
Arguments without a description: type, rooms_min, limit.param_no_description
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

send_enquiry

48 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 11 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: listing_id, name, email, phone.param_no_description
Minor
String arguments with no constraint or example: listing_id, name, email, phone.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: listing_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

search_listings

51 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 17 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
Arguments without a description: property_type, rooms_max, sort, limit.param_no_description
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

owner_enquiry

53 / 100Cloudy

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 11 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: address, intent, name, email, phone, message.param_no_description
Minor
String arguments with no constraint or example: address, name, email, phone, message.loose_string_param
Minor
Says nothing about what it returns.no_return_info

get_listing

57 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 22 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Minor
String arguments with no constraint or example: id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
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.id_source_missing

upcoming_construction

57 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 15 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
Arguments without a description: min_dwellings, limit.param_no_description
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Says nothing about what it returns.no_return_info

area_market_facts

59 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 22 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
Says nothing about what it returns.no_return_info

create_search_alert

59 / 100Cloudy

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 12 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Major
Arguments without a description: category, property_type, rooms_min, price_max, area_min, email.param_no_description
Minor
String arguments with no constraint or example: email.loose_string_param
Minor
Says nothing about what it returns.no_return_info

my_applications

59 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 22 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

apply_for_listing

61 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 17 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
Arguments without a description: listing_id.param_no_description
Minor
String arguments with no constraint or example: listing_id.loose_string_param
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Required identifiers whose description does not say where the value comes from: listing_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

follow_property_value

61 / 100Cloudy

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 12 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: address, living_area_m2.param_no_description
Minor
String arguments with no constraint or example: address.loose_string_param
Minor
The description mentions none of its 3 or more arguments.params_not_in_description

compare_listings

62 / 100Cloudy

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

Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: ids. Name the tool or the place that returns it, or models look it up first.id_source_missing

address_facts

64 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 22 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Says nothing about what it returns.no_return_info

property_value_range

64 / 100Cloudy

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

Minor
Arguments without a description: address, rooms.param_no_description
Minor
String arguments with no constraint or example: address.loose_string_param

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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