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

Annotations already declare readOnlyHint=true, openWorldHint=true, idempotentHint=true, and destructiveHint=false. The description adds that results are bounded, lists the specific document types returned, and mentions the inclusion of links to FederalRegister.gov and govinfo.gov PDFs—useful context beyond the safety profile. No contradiction.

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?

A single, front-loaded sentence that begins with the action and resource, then efficiently packs scope, filters, result types, and output destinations. No redundant words or filler—every phrase 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?

Given the moderate complexity (6 optional params) and the presence of an output schema, the description sufficiently covers purpose, filtering capabilities, result composition, and source links. It doesn't need to explain return structure because the output schema exists, and the description is complete for correct tool selection.

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 coverage is 100%, with each of the 6 parameters having a descriptive entry. The tool description only restates the filtering dimensions (topic, agency, type, date) at a high level without adding new semantic detail or examples beyond the schema, so it does not elevate the baseline.

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 uses a specific verb 'Search' with a clear resource: 'U.S. Federal Register document metadata'. It enumerates filtering dimensions (topic, agency, type, publication date) and result types (regulatory notices, rules, proposed rules, presidential documents) with links to authoritative sources, distinguishing it from sibling research tools focused on SEC, OFAC, LEI, etc.

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?

The description clearly implies this tool is for finding Federal Register documents and their metadata/links. It does not explicitly name alternatives or exclusions, but no sibling tool covers Federal Register data, so the context is unambiguous. Lacks an explicit when-not-to-use statement, hence not a 5.

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