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lzinga

US Government Open Data MCP

by lzinga

congress_senate_communications

Read-onlyIdempotent

Retrieve Senate communications by type: executive communications, presidential messages, or petitions/memorials referred to committees.

Instructions

List Senate communications — executive communications, presidential messages, and petitions/memorials referred to Senate committees. Types: ec (Executive Communication), pm (Presidential Message), pom (Petition or Memorial).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMax results (default: 20)
congressNoCongress number
communication_typeNoCommunication type: 'ec' (Executive Communication), 'pm' (Presidential Message), 'pom' (Petition or Memorial)

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv2026.9.14
    • addedInput schema / properties / limit / default
      Added value: +20
  2. Changed1 schema field changedv2026.4.11
    • removedInput schema / additionalProperties
      Removed value: -false
  3. First observedv2026.3.9

TDQS

A3.6/5.0
Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, covering the safety profile. The description adds the behavioral constraint that communications are those referred to Senate committees, which is useful, but it does not disclose response format, pagination behavior, or any quirks beyond the schema.

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?

Two sentences, front-loaded with the main purpose and followed by the type mapping. No wasted words; highly concise and well-structured.

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?

For a list tool with optional parameters and no output schema, the description covers the core scope and types. It lacks explicit guidance on using details or committee-specific variants, but that belongs to usage guidelines. The description is adequately complete for an agent to understand what it returns and how to filter.

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% for all three parameters, each already described in the schema. The description repeats the communication_type enum values and meanings, adding no new semantic information beyond what the schema provides. Baseline 3 applies.

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 tool lists Senate communications, specifies the three types with their abbreviations, and distinguishes it from the house counterpart by name. It is specific about the resource and scope.

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 does not mention when to use this tool versus alternatives like congress_house_communications, congress_senate_communication_details, or congress_committee_senate_communications. No explicit exclusions or conditions are provided.

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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