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GSA-TTS

USA Spending MCP Server

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get_schema

Retrieve parameter schemas for tools to understand required inputs before making API calls. Choose from brief, detailed, or full formats.

Instructions

Get parameter schemas for specific tools.

Use after searching to get the detail needed to call a tool.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
toolsYesList of tool names to get schemas for
detailNo'brief' for names and descriptions, 'detailed' for parameter schemas as markdown, 'full' for complete JSON schemasdetailed

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

No annotations are provided, so the description must cover behavioral traits. It describes the tool as read-only and informational, but does not disclose any potential side effects, auth requirements, or rate limits. The description is adequate but minimal.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two sentences, front-loaded with purpose and context. Every sentence adds value with no fluff or redundancy.

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

Completeness4/5

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

Given the presence of an output schema and complete parameter schema, the description is sufficient. It includes usage context but could be slightly more explicit about the output structure in the description itself. Overall nearly complete.

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 baseline is 3. The description adds a usage hint ('Use after searching') but does not provide additional semantic meaning for the parameters beyond what the schema already contains.

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 'Get parameter schemas for specific tools' (verb+resource) and distinguishes from siblings 'execute' and 'search' by positioning it as an intermediary step.

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

Usage Guidelines4/5

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

Explicitly says 'Use after searching to get the detail needed to call a tool', providing a clear usage context and implying a workflow sequence, though it does not explicitly state when not to use it or alternatives.

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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