Skip to main content
Glama
lzinga

US Government Open Data MCP

lobbying_registrants

Read-only

Search for lobbying registrants by name to find firms and organizations registered to lobby Congress.

Instructions

Search lobbying firms and organizations registered to lobby Congress.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYesRegistrant name: 'Amazon', 'Pfizer', 'National Rifle Association'
page_sizeNoResults per page (default 20)
Behavior2/5

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

Annotations provide readOnlyHint=true, so the description lacks additional behavioral context such as pagination limits, result format, or any side effects. The description doesn't add value beyond what annotations already indicate.

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?

A single sentence with no filler; every word is necessary and informative. Highly concise and front-loaded.

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?

Given the simplicity (2 params, no output schema), the description should provide some hint about output or result format. It lacks completeness; for example, it doesn't mention that results are paginated or what fields are returned.

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?

Input schema has 100% coverage with descriptions, so baseline is 3. The description does not add meaning to parameters beyond what the schema already provides (e.g., 'name' examples are in the schema).

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 ('Search') and the resource ('lobbying firms and organizations registered to lobby Congress'). It distinguishes from sibling tools like 'lobbying_lobbyists' and 'lobbying_search' which target different entities.

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?

No explicit when-to-use or when-not-to-use guidance is provided. The description implies it's for registrants only, but does not mention alternatives or exclusions, leaving the agent to infer from sibling names.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/lzinga/us-gov-open-data-mcp'

If you have feedback or need assistance with the MCP directory API, please join our Discord server