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find_json_structures

Read-only

JSON Structures across the catalog. Data structures behind an API. Filter by q / tags / providers; include=["content"] inlines bodies. Use find_artifacts for cross-type search.

Input Schema

NameRequiredDescriptionDefault
qNoFree text over name + description, e.g. "sms".
pageNoPage number, 1-based (default 1).
sortNoOrder: relevance / provider / name, or property_count (largest first).
tagsNoTag slugs, e.g. ["payments"]. On providers: what the company does (see api_tags).
limitNoResults per page, 1-100 (default 25).
matchNoHow `tags` combine: any (default) or all.any
contextNoOptional: one sentence on why you are asking. Never used to rank; read only if a result is wrong.
includeNoPass ["content"] to inline each artifact's body instead of just its URL.
providersNoProvider slugs, e.g. ["stripe"].
struct_typeNoRoot type: object, array, datetime, …

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed6 schema fields changed
    • changedInput schema / properties / context / description
      Previous value: -"Optional: why you are asking. One sentence — the task you are trying to complete, or what you expect to get back. Never included in the answer and never used to rank; it is read only when a result turns out to be wrong, which is when knowing the intent is what makes the report actionable."New value: +"Optional: one sentence on why you are asking. Never used to rank; read only if a result is wrong."
    • changedInput schema / properties / match / description
      Previous value: -"How multiple `tags` combine: \"any\" (default, at least one) or \"all\" (every tag)."New value: +"How `tags` combine: any (default) or all."
    • changedInput schema / properties / page / description
      Previous value: -"Page number, 1-based (default 1). Use with `limit` to walk a long list."New value: +"Page number, 1-based (default 1)."
    • changedInput schema / properties / providers / description
      Previous value: -"Provider slugs to restrict results to, e.g. [\"stripe\",\"adyen\"]."New value: +"Provider slugs, e.g. [\"stripe\"]."
    • changedInput schema / properties / q / description
      Previous value: -"Free text over name + description."New value: +"Free text over name + description, e.g. \"sms\"."
    • changedInput schema / properties / tags / description
      Previous value: -"Tag slugs. On PROVIDERS this is identity — what the company says it does, from its own apis.yml. A resource or operation term (webhook, saml, order, oai-pmh) will correctly match no provider; use find_apis?tags= for those, or find_providers?api_tags= to reach companies whose APIs merely touch it."New value: +"Tag slugs, e.g. [\"payments\"]. On providers: what the company does (see api_tags)."
  2. Changed5 schema fields changed
    • addedInput schema / properties / include / description
      Added value: +"Pass [\"content\"] to inline each artifact's body instead of just its URL."
    • addedInput schema / properties / limit / description
      Added value: +"Results per page, 1-100 (default 25)."
    • addedInput schema / properties / match / description
      Added value: +"How multiple `tags` combine: \"any\" (default, at least one) or \"all\" (every tag)."
    • addedInput schema / properties / page / description
      Added value: +"Page number, 1-based (default 1). Use with `limit` to walk a long list."
    • addedInput schema / properties / providers / description
      Added value: +"Provider slugs to restrict results to, e.g. [\"stripe\",\"adyen\"]."
  3. Changed1 schema field changed
    • changedInput schema / properties / tags / description
      Previous value: -"Tag slugs. On PROVIDERS this is identity — what the company says it does, from its own apis.yml. A resource or operation term (webhook, saml, order, oai-pmh) will correctly match no provider; use find_apis?tags= for those, or api_tags below."New value: +"Tag slugs. On PROVIDERS this is identity — what the company says it does, from its own apis.yml. A resource or operation term (webhook, saml, order, oai-pmh) will correctly match no provider; use find_apis?tags= for those, or find_providers?api_tags= to reach companies whose APIs merely touch it."
  4. Changed2 schema fields changed
    • changedInput schema / properties / sort / description
      Previous value: -"Order: name, or property_count (largest first)."New value: +"Order: relevance / provider / name, or property_count (largest first)."
    • changedInput schema / properties / sort / enum
      Previous value: -[
      -  "name",
      -  "property_count"
      -]New value: +[
      +  "relevance",
      +  "provider",
      +  "name",
      +  "property_count"
      +]
  5. Changed1 schema field changed
    • changedInput schema / properties / tags / description
      Previous value: -"Tag slugs."New value: +"Tag slugs. On PROVIDERS this is identity — what the company says it does, from its own apis.yml. A resource or operation term (webhook, saml, order, oai-pmh) will correctly match no provider; use find_apis?tags= for those, or api_tags below."
  6. Changed1 schema field changed
    • addedInput schema / properties / context
      Added value: +{
      +  "description": "Optional: why you are asking. One sentence — the task you are trying to complete, or what you expect to get back. Never included in the answer and never used to rank; it is read only when a result turns out to be wrong, which is when knowing the intent is what makes the report actionable.",
      +  "type": "string"
      +}
  7. Added

TDQS

B3.4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds one genuinely behavioral fact — that include=["content"] inlines artifact bodies instead of URLs — but says nothing about pagination limits, result ordering behavior, or cost/latency with inlined content, so the added value is modest.

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?

Very short and front-loaded: the resource is named first, then filtering, then the routing hint. The telegraphic sentence fragments ('Data structures behind an API.') are slightly terse but nothing is wasted.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a ten-parameter search tool with no output schema, the description should say more about what a returned structure contains and how paging/sorting behave. Annotations cover safety and the schema covers params, but the result shape and the meaning of struct_type/match are left entirely to inference.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all ten parameters with enums and defaults. The description's 'Filter by q / tags / providers' and the include note merely restate what the schema says, adding no syntax or semantics beyond it; baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States the resource clearly ('JSON Structures across the catalog', 'Data structures behind an API') so an agent knows it lists JSON structure artifacts. It does differentiate from find_artifacts (cross-type search), but never distinguishes itself from very close siblings like find_json_schemas, find_json_ld or find_apis_json, which an agent could easily confuse it with.

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?

It offers one explicit routing hint ('Use find_artifacts for cross-type search') and repeats what filters exist, which implies when to use it. But it gives no when-not guidance against the near-identical structural siblings (json_schemas, json_ld) and no prerequisites, so usage is only partially covered.

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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