Mekler AI: tool descriptions scored ai.mekler/agent-discovery

tools/list taken: 2026-11-02 (UTC)
From: Official MCP Registry
Connected to: https://api.mekler.ai/mcp
Scoring rules: v2
Removal: support@forecall.dev

Scores, issues and names only

This page shows how Mekler AI (ai.mekler/agent-discovery)'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/ai.mekler/agent-discovery

Average score: 43.3 / 100Cloudy
Tools: 32
Near-identical descriptions: 2

Across the server

Minor
32 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 whose descriptions are nearly the same

2 of 2 pairs shown, highest description similarity first.
Tool	Tool	Description similarity	Name similarity
referral_acknowledge	referral_notices	0.63	0.33
referral_accept_terms	referral_register	0.62	0.25

Tools

get_service

24 / 100Rain

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

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: id, referral_code.param_no_description
Minor
String arguments with no constraint or example: id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
No constraints, side effects, auth or rate limits described, and no annotations.no_constraints
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

rotate_trial

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: old_wallet, new_wallet, request_id, network, old_proof, new_proof.param_no_description
Minor
String arguments with no constraint or example: old_wallet, new_wallet, request_id.loose_string_param
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

search_services

27 / 100Rain

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 0 / 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, referral_code.param_no_description
Minor
Says nothing about what it returns.no_return_info
Minor
No constraints, side effects, auth or rate limits described, and no annotations.no_constraints

get_trial_access

32 / 100Rain

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

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

get_scan_status

34 / 100Rain

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

Major
Arguments without a description: job_id, recovery_capability.param_no_description
Minor
String arguments with no constraint or example: job_id, recovery_capability.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: job_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

referral_receipts

34 / 100Rain

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

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: arguments, proof, new_proof.param_no_description
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

referral_accept_terms

37 / 100Rain

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

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: arguments, proof, new_proof.param_no_description
Minor
Its description is nearly the same as referral_register's (similarity 0.62); only the names and schemas tell them apart. Say in this description when to use referral_register instead.confusable_pair
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

referral_acknowledge

37 / 100Rain

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

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: arguments, proof, new_proof.param_no_description
Minor
Its description is nearly the same as referral_notices's (similarity 0.63); only the names and schemas tell them apart. Say in this description when to use referral_notices instead.confusable_pair
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

referral_notices

37 / 100Rain

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

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: arguments, proof, new_proof.param_no_description
Minor
Its description is nearly the same as referral_acknowledge's (similarity 0.63); only the names and schemas tell them apart. Say in this description when to use referral_acknowledge instead.confusable_pair
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

referral_register

37 / 100Rain

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

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: arguments, proof, new_proof.param_no_description
Minor
Its description is nearly the same as referral_accept_terms's (similarity 0.62); only the names and schemas tell them apart. Say in this description when to use referral_accept_terms instead.confusable_pair
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

referral_rotate

37 / 100Rain

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

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: arguments, proof, new_proof.param_no_description
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

referral_status

37 / 100Rain

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

Major
Says nothing about when to use it, or when not to.no_usage_context
Major
Arguments without a description: arguments, proof, new_proof.param_no_description
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

referral_program

38 / 100Rain

Purpose: 6 / 20
When to use: 0 / 20
Arguments: 25 / 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
Minor
Says nothing about what it returns.no_return_info

get_scan_report

39 / 100Rain

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

Major
Arguments without a description: report_id.param_no_description
Minor
String arguments with no constraint or example: report_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: report_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

retrieve_health_checks

39 / 100Rain

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

Major
Arguments without a description: listing_id, route_id, since, limit, cursor.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

retrieve_listing

42 / 100Cloudy

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

Major
Arguments without a description: listing_id.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: listing_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

retrieve_listing_history

42 / 100Cloudy

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

Major
Arguments without a description: listing_id, route_id, series, interval, since, limit, cursor.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
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

42 / 100Cloudy

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

Major
Arguments without a description: text, host, category, grade, owner_verified, featured, sort, limit, cursor, network, source, tier, include_delisted.param_no_description
Minor
The meaning of the boolean argument owner_verified is unclear.vague_boolean
Minor
The meaning of the boolean argument featured is unclear.vague_boolean
Minor
The meaning of the boolean argument include_delisted is unclear.vague_boolean
Minor
Says nothing about what it returns.no_return_info

list_offer_changes

47 / 100Cloudy

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

Major
Arguments without a description: listing_id, since, limit, cursor.param_no_description
Minor
Says nothing about what it returns.no_return_info

list_conformance_checks

49 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 25 / 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
Says nothing about what it returns.no_return_info

list_categories

50 / 100Cloudy

Purpose: 13 / 20
When to use: 5 / 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

export_listings

52 / 100Cloudy

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

Major
Arguments without a description: idempotency_key, payment_signature.param_no_description

get_trial_offer

52 / 100Cloudy

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

list_grade_changes

52 / 100Cloudy

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

Major
Arguments without a description: idempotency_key, cursor, limit, payment_signature.param_no_description
Minor
The description mentions none of its 3 or more arguments.params_not_in_description

reissue_owner_token

52 / 100Cloudy

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

Major
Arguments without a description: origin, recovery_code.param_no_description

start_ownership_proof

52 / 100Cloudy

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

Major
Arguments without a description: origin, requester_key, contact_email, email_consent.param_no_description
Minor
The meaning of the boolean argument email_consent is unclear.vague_boolean
Minor
Says nothing about what it returns.no_return_info

confirm_ownership_proof

54 / 100Cloudy

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

Major
Arguments without a description: challenge_id, requester_key, contact_code, update_id.param_no_description

list_networks

54 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 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

request_listing_update

54 / 100Cloudy

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

Major
Arguments without a description: action, listing_id, origin, request_id, revision, requester_key, changes, changes.name, changes.description, changes.category, changes.url, changes.routes, changes.routes[].method, changes.routes[].path, control_credential.param_no_description

update_listing_preferences

54 / 100Cloudy

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

Major
Arguments without a description: listing_id, revision, hidden, suppress_branding, revoke, control_credential.param_no_description
Minor
The meaning of the boolean argument hidden is unclear.vague_boolean
Minor
The meaning of the boolean argument suppress_branding is unclear.vague_boolean
Minor
The meaning of the boolean argument revoke is unclear.vague_boolean

summarize_directory_status

57 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 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

scan_origin

65 / 100Cloudy

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 13 / 25
Return value: 7 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Major
Arguments without a description: quote_mode, paths, recovery_capability, payment_signature.param_no_description
Minor
String arguments with no constraint or example: recovery_capability, payment_signature.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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