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OpenAPI Directory MCP Server

get_provider_apis

Retrieve all OpenAPI APIs available from a given provider. Enter the provider name to get a list of their APIs.

Instructions

List all APIs for a specific provider

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
providerYesProvider name (e.g., "googleapis.com", "azure.com")
Behavior2/5

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

No annotations are provided, so the description carries full responsibility for behavioral disclosure. The description only states the basic function and does not mention any behavioral traits such as output format, pagination, rate limits, or whether authentication is required. This is insufficient for a read operation without annotation safety hints.

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?

The description is a single concise sentence with no wasted words. It is appropriately sized for a simple tool with one parameter, though it could benefit from slight expansion for completeness.

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?

Given the low complexity (one required param, no output schema), the description provides the basic function. However, it lacks details about the return value (e.g., list of API names or full objects) and any filtering behavior, which would help the agent fully understand the output.

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 coverage is 100%, so baseline is 3. The description does not add any meaning beyond the schema; it essentially restates the parameter purpose. The schema already describes the 'provider' parameter adequately.

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

Purpose5/5

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

The description clearly states the action 'List all APIs' and the specific resource 'for a specific provider'. This distinguishes it from sibling tools like 'get_providers' which lists providers, and 'list_all_apis' which lists all APIs without provider filter.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It does not specify any prerequisites, context, or exclusions, leaving the agent to infer usage solely from the tool name and schema.

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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