io.github.dtajitdinov-aris/sphere-marketplace: tool descriptions scored

tools/list taken: 2026-11-02 (UTC)
From: Official MCP Registry
Connected to: https://starsphera.com/mcp
Homepage: starsphera.com
Repository: github.com/dtajitdinov-aris/sphere-marketplace
Scoring rules: v2
Removal: support@forecall.dev

Scores, issues and names only

This page shows how io.github.dtajitdinov-aris/sphere-marketplace'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.dtajitdinov-aris/sphere-marketplace

Average score: 58.7 / 100Cloudy
Tools: 30
Near-identical descriptions: 18

Across the server

Minor
30 tools. Above 25, models start to tell tools apart less well.many_tools
Minor
18 pairs with nearly the same description in all; the top 12 are shown.confusable_pair_total
Minor
The server's instructions are 7186 characters. Claude Code reads only the first 2,048 by default (Codex 0.154.0 reads them whole). Put what the server is for first.instructions_long

Tools whose descriptions are nearly the same

12 of 18 pairs shown, highest description similarity first.
Tool	Tool	Description similarity	Name similarity
buy_csv_clean_research_brief	buy_agent_exec_placement	0.90	0.12
buy_backtest_score_certificate_for_prediction_tickets	buy_csv_clean_research_brief	0.89	0.09
buy_backtest_score_certificate_for_prediction_tickets	buy_agent_exec_placement	0.89	0.10
buy_agent_exec	buy_agent_exec_placement	0.88	0.75
buy_agent_exec_placement	buy_ai_writing_research	0.88	0.14
buy_csv_clean_research_brief	buy_agent_exec	0.85	0.14
buy_csv_clean_research_brief	buy_ai_writing_research	0.85	0.29
buy_backtest_score_certificate_for_prediction_tickets	buy_agent_exec	0.84	0.11
buy_backtest_score_certificate_for_prediction_tickets	buy_ai_writing_research	0.84	0.10
buy_agent_exec	buy_ai_writing_research	0.83	0.17
buy_sphere_receipt	buy_verify_claims_smart	0.72	0.17
buy_sphere_receipt	buy_agent_exec_placement	0.65	0.17

Tools

chat_send

47 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 18 / 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: sender_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

marketplace_my_services

47 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 18 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
Says nothing about what it returns.no_return_info

contact_sphere_structured

49 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 20 / 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
Minor
String arguments with no constraint or example: api_key.loose_string_param
Minor
Says nothing about what it returns.no_return_info

marketplace_wallet_register

49 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 18 / 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

chat_read

50 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 18 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
Says nothing about what it returns.no_return_info

marketplace_deposit_address

50 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 18 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Minor
Says nothing about what it returns.no_return_info

marketplace_accept_contract

52 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 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: contract_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

marketplace_my_contracts

52 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
Says nothing about what it returns.no_return_info

marketplace_verify_signature

52 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 18 / 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
Minor
Required identifiers whose description does not say where the value comes from: contract_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

contact_sphere

53 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 19 / 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

marketplace_register

53 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 19 / 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
Minor
The description mentions none of its 3 or more arguments.params_not_in_description

marketplace_get_contract

54 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 18 / 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: contract_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

marketplace_my_sales

55 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Minor
Says nothing about what it returns.no_return_info

marketplace_x402_payment

55 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 18 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

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

marketplace_publish_wanted

57 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
Says nothing about what it returns.no_return_info

marketplace_create_contract

58 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 19 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Says nothing about what it returns.no_return_info

marketplace_complete_contract

59 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

marketplace_deliver_contract

59 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 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: contract_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

marketplace_publish_service

59 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

marketplace_services

61 / 100Cloudy

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

Minor
No `required` list, so every argument is optional.no_required
Minor
The description mentions none of its 3 or more arguments.params_not_in_description

marketplace_get_result

62 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 18 / 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: contract_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

marketplace_dispute_contract

63 / 100Cloudy

Purpose: 17 / 20
When to use: 20 / 20
Arguments: 19 / 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: contract_id. Name the tool or the place that returns it, or models look it up first.id_source_missing

buy_sphere_receipt_trial

65 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 18 / 25
Return value: 7 / 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

buy_agent_exec

69 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Its description is nearly the same as buy_agent_exec_placement's (similarity 0.88); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec_placement instead.confusable_pair
Minor
Its description is nearly the same as buy_csv_clean_research_brief's (similarity 0.85); only the names and schemas tell them apart. Say in this description when to use buy_csv_clean_research_brief instead.confusable_pair
Minor
Its description is nearly the same as buy_backtest_score_certificate_for_prediction_tickets's (similarity 0.84); only the names and schemas tell them apart. Say in this description when to use buy_backtest_score_certificate_for_prediction_tickets instead.confusable_pair
Minor
Its description is nearly the same as buy_ai_writing_research's (similarity 0.83); only the names and schemas tell them apart. Say in this description when to use buy_ai_writing_research instead.confusable_pair

buy_agent_exec_placement

69 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Its description is nearly the same as buy_csv_clean_research_brief's (similarity 0.90); only the names and schemas tell them apart. Say in this description when to use buy_csv_clean_research_brief instead.confusable_pair
Minor
Its description is nearly the same as buy_backtest_score_certificate_for_prediction_tickets's (similarity 0.89); only the names and schemas tell them apart. Say in this description when to use buy_backtest_score_certificate_for_prediction_tickets instead.confusable_pair
Minor
Its description is nearly the same as buy_agent_exec's (similarity 0.88); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec instead.confusable_pair
Minor
Its description is nearly the same as buy_ai_writing_research's (similarity 0.88); only the names and schemas tell them apart. Say in this description when to use buy_ai_writing_research instead.confusable_pair
Minor
Its description is nearly the same as buy_sphere_receipt's (similarity 0.65); only the names and schemas tell them apart. Say in this description when to use buy_sphere_receipt instead.confusable_pair

buy_ai_writing_research

69 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Its description is nearly the same as buy_agent_exec_placement's (similarity 0.88); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec_placement instead.confusable_pair
Minor
Its description is nearly the same as buy_csv_clean_research_brief's (similarity 0.85); only the names and schemas tell them apart. Say in this description when to use buy_csv_clean_research_brief instead.confusable_pair
Minor
Its description is nearly the same as buy_backtest_score_certificate_for_prediction_tickets's (similarity 0.84); only the names and schemas tell them apart. Say in this description when to use buy_backtest_score_certificate_for_prediction_tickets instead.confusable_pair
Minor
Its description is nearly the same as buy_agent_exec's (similarity 0.83); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec instead.confusable_pair

buy_backtest_score_certificate_for_prediction_tickets

69 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Its description is nearly the same as buy_csv_clean_research_brief's (similarity 0.89); only the names and schemas tell them apart. Say in this description when to use buy_csv_clean_research_brief instead.confusable_pair
Minor
Its description is nearly the same as buy_agent_exec_placement's (similarity 0.89); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec_placement instead.confusable_pair
Minor
Its description is nearly the same as buy_agent_exec's (similarity 0.84); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec instead.confusable_pair
Minor
Its description is nearly the same as buy_ai_writing_research's (similarity 0.84); only the names and schemas tell them apart. Say in this description when to use buy_ai_writing_research instead.confusable_pair
Minor
The name is long (53 characters).long_name

buy_csv_clean_research_brief

69 / 100Cloudy

Purpose: 17 / 20
When to use: 10 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Its description is nearly the same as buy_agent_exec_placement's (similarity 0.90); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec_placement instead.confusable_pair
Minor
Its description is nearly the same as buy_backtest_score_certificate_for_prediction_tickets's (similarity 0.89); only the names and schemas tell them apart. Say in this description when to use buy_backtest_score_certificate_for_prediction_tickets instead.confusable_pair
Minor
Its description is nearly the same as buy_agent_exec's (similarity 0.85); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec instead.confusable_pair
Minor
Its description is nearly the same as buy_ai_writing_research's (similarity 0.85); only the names and schemas tell them apart. Say in this description when to use buy_ai_writing_research instead.confusable_pair

buy_sphere_receipt

77 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
Its description is nearly the same as buy_verify_claims_smart's (similarity 0.72); only the names and schemas tell them apart. Say in this description when to use buy_verify_claims_smart instead.confusable_pair
Minor
Its description is nearly the same as buy_agent_exec_placement's (similarity 0.65); only the names and schemas tell them apart. Say in this description when to use buy_agent_exec_placement instead.confusable_pair

buy_verify_claims_smart

77 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 18 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
Its description is nearly the same as buy_sphere_receipt's (similarity 0.72); only the names and schemas tell them apart. Say in this description when to use buy_sphere_receipt instead.confusable_pair

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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