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lzinga

US Government Open Data MCP

by lzinga

uspto_application_transactions

Read-onlyIdempotent

Get patent application transaction history: office actions, responses, examiner actions, status changes with dates. Provide an application number to see the complete prosecution timeline.

Instructions

Get transaction (prosecution history) events for a patent application. Shows office actions, responses, examiner actions, and status changes with dates.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
application_numberYesApplication number

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv2026.4.11
    • removedInput schema / additionalProperties
      Removed value: -false
  2. First observedv2026.3.9

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds useful behavioral context by naming the kinds of events returned and the presence of dates, without contradicting any annotation.

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 with no filler: the first states the action and resource, the second summarizes the returned content. It is front-loaded and every clause earns its place.

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 low-complexity, one-required-parameter, read-only lookup, the description is adequate: it identifies the input and sketches the returned event categories and dates. There is no output schema, so mentioning ordering, pagination, or exact response structure would add completeness, but the current description is sufficient for an agent to select and call the tool.

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 schema covers the single parameter fully with a description of 'Application number', so there is little burden on the prose description. The description only repeats that the target is a patent application and gives no extra formatting or normalization hints, but this is acceptable for such a simple one-parameter interface.

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 opens with a specific action ('Get ... events') and a defined resource ('patent application'), then lists the event types returned. The phrase 'prosecution history' plus the enumerated event categories clearly distinguish this tool from sibling USPTO tools like application_documents, application_details, and application_continuity.

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?

It gives clear context: use this tool when you need prosecution-history transactions such as office actions, responses, examiner actions, and status changes. It does not explicitly name alternatives or say when not to use it, but the domain-specific examples make the intended use unambiguous.

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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