agent_utilities_prepare
Read-only
FREE. Validate input and return exact arguments for a free full call. No execution or reservation.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | ||
| input | Yes |
Agent Utilities Hosted
Schema Changelog
Changes observed during successful MCP inspections.
Changed1 schema field changed
- changed
Input schema / properties / name / enumPrevious value: -[ - "html_main_text", - "html_jsonld", - "html_tables", - "web_readable_fetch", - "web_redirect_trace", - "web_robots_evaluate", - "contracts_openapi_lint", - "contracts_openapi_diff", - "contracts_jsonschema_validate", - "security_secret_scan", - "security_secret_redact", - "agents_config_audit", - "web_page_pack", - "web_link_shortlist", - "web_page_delta", - "web_page_pack_fetch", - "web_wikipedia_pack", - "web_thread_pack", - "web_wikipedia_read", - "web_wikipedia_popular", - "web_reddit_thread", - "web_reddit_popular", - "data_json_patch", - "html_metadata", - "html_links", - "html_headings", - "html_forms", - "html_images", - "html_feeds", - "data_json_pointer", - "data_json_diff", - "data_json_canonical", - "security_jwt_inspect", - "security_csp_audit", - "security_header_audit", - "security_cookie_audit", - "agents_env_template_check", - "agents_tool_name_conflicts", - "text_chunk", - "commerce_gtin_validate", - "commerce_variant_compare", - "commerce_pack_plan", - "commerce_money_parse", - "commerce_offer_extract", - "commerce_unit_price", - "commerce_price_components", - "commerce_main_product", - "commerce_pack_size_normalize", - "commerce_feed_page_compare" -]New value: +[ + "html_main_text", + "html_jsonld", + "html_tables", + "web_readable_fetch", + "web_redirect_trace", + "web_robots_evaluate", + "contracts_openapi_lint", + "contracts_openapi_diff", + "contracts_jsonschema_validate", + "security_secret_scan", + "security_secret_redact", + "agents_config_audit", + "web_page_pack", + "web_link_shortlist", + "web_page_delta", + "web_page_pack_fetch", + "web_wikipedia_pack", + "web_thread_pack", + "web_wikipedia_read", + "web_wikipedia_popular", + "data_json_patch", + "html_metadata", + "html_links", + "html_headings", + "html_forms", + "html_images", + "html_feeds", + "data_json_pointer", + "data_json_diff", + "data_json_canonical", + "security_jwt_inspect", + "security_csp_audit", + "security_header_audit", + "security_cookie_audit", + "agents_env_template_check", + "agents_tool_name_conflicts", + "text_chunk", + "commerce_gtin_validate", + "commerce_variant_compare", + "commerce_pack_plan", + "commerce_money_parse", + "commerce_offer_extract", + "commerce_unit_price", + "commerce_price_components", + "commerce_main_product", + "commerce_pack_size_normalize", + "commerce_feed_page_compare" +]
Changed1 schema field changed
- changed
Input schema / properties / name / enumPrevious value: -[ - "html_main_text", - "html_jsonld", - "html_tables", - "web_readable_fetch", - "web_redirect_trace", - "web_robots_evaluate", - "contracts_openapi_lint", - "contracts_openapi_diff", - "contracts_jsonschema_validate", - "security_secret_scan", - "security_secret_redact", - "agents_config_audit", - "web_page_pack", - "web_link_shortlist", - "web_page_delta", - "web_page_pack_fetch", - "data_json_patch", - "html_metadata", - "html_links", - "html_headings", - "html_forms", - "html_images", - "html_feeds", - "data_json_pointer", - "data_json_diff", - "data_json_canonical", - "security_jwt_inspect", - "security_csp_audit", - "security_header_audit", - "security_cookie_audit", - "agents_env_template_check", - "agents_tool_name_conflicts", - "text_chunk", - "commerce_gtin_validate", - "commerce_variant_compare", - "commerce_pack_plan", - "commerce_money_parse", - "commerce_offer_extract", - "commerce_unit_price", - "commerce_price_components", - "commerce_main_product", - "commerce_pack_size_normalize", - "commerce_feed_page_compare" -]New value: +[ + "html_main_text", + "html_jsonld", + "html_tables", + "web_readable_fetch", + "web_redirect_trace", + "web_robots_evaluate", + "contracts_openapi_lint", + "contracts_openapi_diff", + "contracts_jsonschema_validate", + "security_secret_scan", + "security_secret_redact", + "agents_config_audit", + "web_page_pack", + "web_link_shortlist", + "web_page_delta", + "web_page_pack_fetch", + "web_wikipedia_pack", + "web_thread_pack", + "web_wikipedia_read", + "web_wikipedia_popular", + "web_reddit_thread", + "web_reddit_popular", + "data_json_patch", + "html_metadata", + "html_links", + "html_headings", + "html_forms", + "html_images", + "html_feeds", + "data_json_pointer", + "data_json_diff", + "data_json_canonical", + "security_jwt_inspect", + "security_csp_audit", + "security_header_audit", + "security_cookie_audit", + "agents_env_template_check", + "agents_tool_name_conflicts", + "text_chunk", + "commerce_gtin_validate", + "commerce_variant_compare", + "commerce_pack_plan", + "commerce_money_parse", + "commerce_offer_extract", + "commerce_unit_price", + "commerce_price_components", + "commerce_main_product", + "commerce_pack_size_normalize", + "commerce_feed_page_compare" +]
Changed1 schema field changed
- changed
Input schema / properties / name / enumPrevious value: -[ - "html_main_text", - "html_jsonld", - "html_tables", - "web_readable_fetch", - "web_redirect_trace", - "web_robots_evaluate", - "contracts_openapi_lint", - "contracts_openapi_diff", - "contracts_jsonschema_validate", - "security_secret_scan", - "security_secret_redact", - "agents_config_audit", - "data_json_patch", - "html_metadata", - "html_links", - "html_headings", - "html_forms", - "html_images", - "html_feeds", - "data_json_pointer", - "data_json_diff", - "data_json_canonical", - "security_jwt_inspect", - "security_csp_audit", - "security_header_audit", - "security_cookie_audit", - "agents_env_template_check", - "agents_tool_name_conflicts", - "text_chunk", - "commerce_gtin_validate", - "commerce_variant_compare", - "commerce_pack_plan", - "commerce_money_parse", - "commerce_offer_extract", - "commerce_unit_price", - "commerce_price_components", - "commerce_main_product", - "commerce_pack_size_normalize", - "commerce_feed_page_compare" -]New value: +[ + "html_main_text", + "html_jsonld", + "html_tables", + "web_readable_fetch", + "web_redirect_trace", + "web_robots_evaluate", + "contracts_openapi_lint", + "contracts_openapi_diff", + "contracts_jsonschema_validate", + "security_secret_scan", + "security_secret_redact", + "agents_config_audit", + "web_page_pack", + "web_link_shortlist", + "web_page_delta", + "web_page_pack_fetch", + "data_json_patch", + "html_metadata", + "html_links", + "html_headings", + "html_forms", + "html_images", + "html_feeds", + "data_json_pointer", + "data_json_diff", + "data_json_canonical", + "security_jwt_inspect", + "security_csp_audit", + "security_header_audit", + "security_cookie_audit", + "agents_env_template_check", + "agents_tool_name_conflicts", + "text_chunk", + "commerce_gtin_validate", + "commerce_variant_compare", + "commerce_pack_plan", + "commerce_money_parse", + "commerce_offer_extract", + "commerce_unit_price", + "commerce_price_components", + "commerce_main_product", + "commerce_pack_size_normalize", + "commerce_feed_page_compare" +]
Changed1 schema field changed
- changed
Input schema / properties / name / enumPrevious value: -[ - "html_main_text", - "html_jsonld", - "html_tables", - "web_readable_fetch", - "web_redirect_trace", - "web_robots_evaluate", - "contracts_openapi_lint", - "contracts_openapi_diff", - "contracts_jsonschema_validate", - "security_secret_scan", - "security_secret_redact", - "agents_config_audit", - "data_json_patch", - "html_metadata", - "html_links", - "html_headings", - "html_forms", - "html_images", - "html_feeds", - "data_json_pointer", - "data_json_diff", - "data_json_canonical", - "security_jwt_inspect", - "security_csp_audit", - "security_header_audit", - "security_cookie_audit", - "agents_env_template_check", - "agents_tool_name_conflicts", - "text_chunk", - "commerce_gtin_validate", - "commerce_variant_compare", - "commerce_pack_plan", - "commerce_money_parse", - "commerce_offer_extract", - "commerce_unit_price", - "commerce_price_components" -]New value: +[ + "html_main_text", + "html_jsonld", + "html_tables", + "web_readable_fetch", + "web_redirect_trace", + "web_robots_evaluate", + "contracts_openapi_lint", + "contracts_openapi_diff", + "contracts_jsonschema_validate", + "security_secret_scan", + "security_secret_redact", + "agents_config_audit", + "data_json_patch", + "html_metadata", + "html_links", + "html_headings", + "html_forms", + "html_images", + "html_feeds", + "data_json_pointer", + "data_json_diff", + "data_json_canonical", + "security_jwt_inspect", + "security_csp_audit", + "security_header_audit", + "security_cookie_audit", + "agents_env_template_check", + "agents_tool_name_conflicts", + "text_chunk", + "commerce_gtin_validate", + "commerce_variant_compare", + "commerce_pack_plan", + "commerce_money_parse", + "commerce_offer_extract", + "commerce_unit_price", + "commerce_price_components", + "commerce_main_product", + "commerce_pack_size_normalize", + "commerce_feed_page_compare" +]
- First observed
TDQS
C2.9/5.0
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so safety is covered. The description adds useful context beyond that — that no execution or reservation occurs and that the call is free — but it does not address the notable idempotentHint=false, nor what the returned arguments look like or how they should be consumed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two short sentences with the key qualifier ('FREE') front-loaded and zero filler. Slightly clipped to the point of ambiguity, but structurally efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool that dispatches across 46 utilities with an undocumented nested 'input' object and no output schema, the description is too thin — it never explains the name/input relationship or what the agent should do with the returned arguments.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description carries the full burden. It says 'validate input' but never explains the 'name' parameter (a 46-value enum selecting the target utility) or how the free-form 'input' object must be shaped to match that target. This is a significant gap for a meta-tool.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose3/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific action (validate input, return exact arguments) and clarifies that nothing is executed or reserved. However, the verb 'prepare' is vague about the tool's role, and it never explains that the 'name' parameter selects which of the ~46 sibling utilities is being prepared, so the agent must infer the tool's function from the enum alone.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The phrase 'for a free full call' implies this is a pre-flight step before invoking a full/paid call, and 'no execution or reservation' implies a dry-run use case. But no alternatives are named (e.g. the *_preview or *_trial siblings), and the conditions selecting this tool over a direct call are left to inference.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
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