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Fathom (lab): tool descriptions scored dev.fly.fathom-lab-door/fathom

tools/list taken
(UTC)
From
Official MCP Registry
Connected to
https://fathom-lab-door.fly.dev/mcp
Homepage
fathom-lab-door.fly.dev
Scoring rules
v2
Removal
support@forecall.dev
Score this URL as it is today

Scores, issues and names only

This page shows how Fathom (lab) (dev.fly.fathom-lab-door/fathom)'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/dev.fly.fathom-lab-door/fathom
Average score
36.9 / 100Rain
Tools
42
Near-identical descriptions
0

Across the server

  • Major
    42 tools. Above 40, models choose less accurately.too_many_tools

Tools

spaces_list_public

13 / 100Rain

Purpose
6 / 20
When to use
0 / 20
Arguments
0 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    The description only restates the name (8 words).restates_name
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Major
    Arguments without a description: token.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

capabilities_search

16 / 100Rain

Purpose
6 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    The description only restates the name (6 words).restates_name
  • Major
    The description is too short (6 words).too_short
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Major
    Arguments without a description: token, query.param_no_description
  • Minor
    String arguments with no constraint or example: token, query.loose_string_param
  • Minor
    Says nothing about what it returns.no_return_info

experiences_apply

16 / 100Rain

Purpose
6 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    The description only restates the name (9 words).restates_name
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Major
    Arguments without a description: token, spaceId, manifest.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId.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: spaceId. Name the tool or the place that returns it, or models look it up first.id_source_missing

experiences_validate

16 / 100Rain

Purpose
6 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    The description only restates the name (8 words).restates_name
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Major
    Arguments without a description: token, manifest.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    Says nothing about what it returns.no_return_info

invite_links_create

16 / 100Rain

Purpose
6 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    The description only restates the name (9 words).restates_name
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Major
    Arguments without a description: token, spaceId.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId.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: spaceId. Name the tool or the place that returns it, or models look it up first.id_source_missing

spaces_create_draft

17 / 100Rain

Purpose
6 / 20
When to use
0 / 20
Arguments
4 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    The description only restates the name (9 words).restates_name
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Major
    Arguments without a description: token, purpose, visibility, town.param_no_description
  • Minor
    String arguments with no constraint or example: token, purpose, town.loose_string_param
  • 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

platform_describe

20 / 100Rain

Purpose
13 / 20
When to use
0 / 20
Arguments
0 / 25
Return value
0 / 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: token.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

extensions_report_gap

23 / 100Rain

Purpose
13 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 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: token, need, attempted, why, amends.param_no_description
  • Minor
    String arguments with no constraint or example: token, need, why, amends.loose_string_param
  • 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

extensions_withdraw

24 / 100Rain

Purpose
14 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 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: token, extensionId, version.param_no_description
  • Minor
    String arguments with no constraint or example: token, extensionId.loose_string_param
  • 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
  • Minor
    Required identifiers whose description does not say where the value comes from: extensionId. Name the tool or the place that returns it, or models look it up first.id_source_missing

views_list

24 / 100Rain

Purpose
17 / 20
When to use
0 / 20
Arguments
0 / 25
Return value
0 / 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: token.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

activities_list_join_requests

27 / 100Rain

Purpose
17 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 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: token, spaceId, activityId.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, activityId.loose_string_param
  • 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
  • Minor
    Required identifiers whose description does not say where the value comes from: spaceId, activityId. Name the tool or the place that returns it, or models look it up first.id_source_missing

activities_lock_choice

27 / 100Rain

Purpose
17 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 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: token, spaceId, activityId, optionId.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, activityId, optionId.loose_string_param
  • 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
  • Minor
    Required identifiers whose description does not say where the value comes from: spaceId, activityId, optionId. Name the tool or the place that returns it, or models look it up first.id_source_missing

extensions_list

27 / 100Rain

Purpose
20 / 20
When to use
0 / 20
Arguments
0 / 25
Return value
0 / 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: token.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

views_checks

27 / 100Rain

Purpose
17 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 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: token, viewId, version, spaceId.param_no_description
  • Minor
    String arguments with no constraint or example: token, viewId, spaceId.loose_string_param
  • 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
  • Minor
    Required identifiers whose description does not say where the value comes from: viewId. Name the tool or the place that returns it, or models look it up first.id_source_missing

views_propose

27 / 100Rain

Purpose
17 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 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: token, view.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    Says nothing about what it returns.no_return_info

activities_offer_choice

28 / 100Rain

Purpose
17 / 20
When to use
0 / 20
Arguments
4 / 25
Return value
0 / 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: token, spaceId, activityId, kind, options, options[].label, options[].at, extensionId, version, field.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, activityId, options[].label, options[].at, extensionId, field.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: spaceId, activityId. Name the tool or the place that returns it, or models look it up first.id_source_missing

spaces_get

28 / 100Rain

Purpose
13 / 20
When to use
5 / 20
Arguments
3 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Arguments without a description: token, spaceId.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId.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: spaceId. Name the tool or the place that returns it, or models look it up first.id_source_missing

places_verdicts

29 / 100Rain

Purpose
17 / 20
When to use
0 / 20
Arguments
0 / 25
Return value
0 / 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: token.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

activities_set_details

30 / 100Rain

Purpose
20 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 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: token, spaceId, activityId, extensionId, version, values.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, activityId, extensionId.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: spaceId, activityId, extensionId. Name the tool or the place that returns it, or models look it up first.id_source_missing

type_status

32 / 100Rain

Purpose
20 / 20
When to use
0 / 20
Arguments
0 / 25
Return value
0 / 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: token, name, class.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

activities_add

36 / 100Rain

Purpose
20 / 20
When to use
5 / 20
Arguments
4 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Arguments without a description: token, spaceId, title, when, where, level, description, whoFor, bring, firstTime, finding, groundRules, concernRole, provenance, places, offerWindowMs, offerWindowHours.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, title, when, where, description, whoFor, firstTime, finding, concernRole.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: spaceId. Name the tool or the place that returns it, or models look it up first.id_source_missing

activities_get_choice

37 / 100Rain

Purpose
20 / 20
When to use
0 / 20
Arguments
3 / 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: token, spaceId, activityId.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, activityId.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: spaceId, activityId. Name the tool or the place that returns it, or models look it up first.id_source_missing

activities_update

37 / 100Rain

Purpose
17 / 20
When to use
5 / 20
Arguments
3 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Arguments without a description: token, spaceId, activityId, title, when, where, description, whoFor, bring, firstTime, finding, groundRules, concernRole, provenance.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, activityId, title, when, where, description, whoFor, firstTime, finding, concernRole.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: spaceId, activityId. Name the tool or the place that returns it, or models look it up first.id_source_missing

activities_answer

38 / 100Rain

Purpose
17 / 20
When to use
5 / 20
Arguments
4 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Arguments without a description: token, spaceId, activityId, answer, others.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, activityId.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: spaceId, activityId. Name the tool or the place that returns it, or models look it up first.id_source_missing

experiences_preview

38 / 100Rain

Purpose
20 / 20
When to use
0 / 20
Arguments
3 / 25
Return value
0 / 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
  • Major
    Arguments without a description: token, spaceId.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId.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: spaceId. Name the tool or the place that returns it, or models look it up first.id_source_missing

extensions_propose

39 / 100Rain

Purpose
17 / 20
When to use
5 / 20
Arguments
5 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Arguments without a description: token, fields[].key, fields[].label, fields[].type, fields[].maxLength, fields[].key, fields[].label, fields[].type, fields[].min, fields[].max, fields[].key, fields[].label, fields[].type, fields[].options, fields[].key, fields[].label, fields[].type, closesGap.param_no_description
  • Minor
    String arguments with no constraint or example: token, fields[].key, fields[].label, fields[].type, fields[].key, fields[].label, fields[].key, fields[].label, fields[].type, fields[].key, fields[].label, fields[].type, closesGap.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

genesis_items

39 / 100Rain

Purpose
17 / 20
When to use
10 / 20
Arguments
0 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Arguments without a description: token, run, since.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

activities_participation

40 / 100Cloudy

Purpose
20 / 20
When to use
5 / 20
Arguments
3 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Arguments without a description: token, spaceId, activityId.param_no_description
  • Minor
    String arguments with no constraint or example: token, spaceId, activityId.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: spaceId, activityId. Name the tool or the place that returns it, or models look it up first.id_source_missing

fathom_space

40 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
16 / 25
Return value
0 / 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
  • Minor
    Arguments without a description: spaceId.param_no_description
  • Minor
    Says nothing about what it returns.no_return_info
  • Minor
    Required identifiers whose description does not say where the value comes from: spaceId. Name the tool or the place that returns it, or models look it up first.id_source_missing

knowledge_lens

42 / 100Cloudy

Purpose
17 / 20
When to use
10 / 20
Arguments
0 / 25
Return value
0 / 15
Constraints and side effects
10 / 10
Examples
5 / 10
  • Major
    Arguments without a description: token, interest, town, limit.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

affiliations_declare

43 / 100Cloudy

Purpose
17 / 20
When to use
10 / 20
Arguments
4 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Arguments without a description: token, subject, relation, object, label.param_no_description
  • Minor
    String arguments with no constraint or example: token, subject, object, label.loose_string_param
  • 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

propose_type

44 / 100Cloudy

Purpose
17 / 20
When to use
15 / 20
Arguments
0 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Arguments without a description: token, name, definition, parent, identity_rule, examples, use, differs_from.param_no_description
  • Minor
    String arguments with no constraint or example: token.loose_string_param
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    Says nothing about what it returns.no_return_info

activities_tick_choice

45 / 100Cloudy

Purpose
17 / 20
When to use
5 / 20
Arguments
16 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Minor
    Arguments without a description: spaceId, activityId.param_no_description
  • Minor
    Says nothing about what it returns.no_return_info
  • Minor
    Required identifiers whose description does not say where the value comes from: spaceId, activityId, optionIds. Name the tool or the place that returns it, or models look it up first.id_source_missing

fathom_forget

54 / 100Cloudy

Purpose
14 / 20
When to use
5 / 20
Arguments
23 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Minor
    Says nothing about what it returns.no_return_info

fathom_builder_start

56 / 100Cloudy

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

fathom_space_context

57 / 100Cloudy

Purpose
20 / 20
When to use
5 / 20
Arguments
20 / 25
Return value
0 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Minor
    Arguments without a description: spaceId.param_no_description
  • Minor
    Says nothing about what it returns.no_return_info
  • Minor
    Required identifiers whose description does not say where the value comes from: spaceId. Name the tool or the place that returns it, or models look it up first.id_source_missing

fathom_find

58 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
23 / 25
Return value
0 / 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
    Says nothing about what it returns.no_return_info

activities_request_to_join

62 / 100Cloudy

Purpose
20 / 20
When to use
5 / 20
Arguments
23 / 25
Return value
7 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Minor
    Required identifiers whose description does not say where the value comes from: spaceId, activityId. Name the tool or the place that returns it, or models look it up first.id_source_missing

fathom_status

63 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
23 / 25
Return value
0 / 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
  • Minor
    Says nothing about what it returns.no_return_info

fathom_remember

64 / 100Cloudy

Purpose
17 / 20
When to use
5 / 20
Arguments
23 / 25
Return value
7 / 15
Constraints and side effects
7 / 10
Examples
5 / 10

No issues.

fathom_space_join

72 / 100Clear

Purpose
20 / 20
When to use
10 / 20
Arguments
23 / 25
Return value
7 / 15
Constraints and side effects
7 / 10
Examples
5 / 10

No issues.

fathom_propose

79 / 100Clear

Purpose
17 / 20
When to use
15 / 20
Arguments
23 / 25
Return value
7 / 15
Constraints and side effects
7 / 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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