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phields

Unusual Whales MCP Server

by phields

get_congress_trader

Retrieve recent congressional stock trading reports to track politician investments by date, ticker, or member name for financial transparency.

Instructions

Get recent reports by congress member

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoNumber of results to return
dateNoDate filter (YYYY-MM-DD)
tickerNoTicker symbol
nameNoCongress member name
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions 'recent reports' but doesn't specify what 'recent' means, whether there are rate limits, authentication requirements, or what the output format looks like. This is inadequate for a tool with potential data retrieval implications.

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 a single, efficient sentence that directly states the tool's purpose without unnecessary words. It's front-loaded and wastes no space, making it easy to parse quickly.

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 no annotations and no output schema, the description is incomplete. It doesn't explain what 'recent reports' entail, how results are returned, or any behavioral traits like pagination or error handling. For a data retrieval tool with multiple parameters, this leaves significant gaps in understanding.

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?

The input schema has 100% description coverage, with clear parameter documentation (limit, date, ticker, name). The description adds no additional semantic context beyond the schema, such as how parameters interact or examples of usage. Baseline 3 is appropriate as the schema does the heavy lifting.

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?

The description clearly states the action ('Get recent reports') and resource ('by congress member'), making the purpose understandable. However, it doesn't distinguish this tool from sibling tools like 'get_congress_late_reports' or 'get_congress_recent_trades', which appear to serve similar domains, so it doesn't fully differentiate from alternatives.

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. With siblings like 'get_congress_late_reports' and 'get_congress_recent_trades' available, there's no indication of what makes this tool unique or when it should be preferred, leaving usage context unclear.

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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