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

The description adds an important interpretative caveat beyond the readOnly/idempotent/destructive-free annotations: outcome labels are document-level and 'not claim-by-claim legal conclusions.' This disclosure helps the agent set correct user expectations and avoid overstating results. It does not mention rate limits, but annotations already cover safe read behavior.

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

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

The description is two concise sentences with no filler. The first sentence states the action, scope, and filtering options; the second adds a necessary caveat. Every clause earns its place.

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

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

The description covers the tool's core purpose and filter dimensions, and the schema documents days and limit defaults. But there is no output schema and no description of return shape, sorting, pagination, or how multiple filters interact, leaving meaningful gaps for an agent deciding whether the tool's results will satisfy a user request.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 67%, and the description partially compensates by naming trial type, patent, and party as filter dimensions. However, the 'party' and 'patent_number' parameters remain conceptually vague (e.g., what counts as a party, exact match or partial match), and the description adds no format or value guidance beyond property names.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific verb ('return and summarize'), a clear resource ('recently issued public PTAB trial decisions'), and the optional filter dimensions. It does not explicitly distinguish itself from sibling tools like ptab_search_decisions, but 'recently issued' conveys the temporal scope well enough to separate it from general search.

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

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

No guidance is given for when to choose this tool over the many related PTAB siblings such as ptab_search_decisions, ptab_party_exposure, or ptab_proceeding_timeline. The phrase 'recently issued' implies a recency-focused use case, but there are no explicit when-to-use or when-not-to-use instructions.

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