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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds that this is the complete ('all') reference list rather than a paginated or filtered subset, but discloses nothing further about auth needs, caching, or list size.

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?

One compact sentence that front-loads what is returned before adding the usage note. Nothing redundant and nothing padded.

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?

An output schema exists, so return-shape details are unnecessary in the description, and there are no parameters to document. For a nullary reference-list tool this is essentially complete, though it could note whether the list is static or periodically refreshed.

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?

Zero parameters, so per the rubric the baseline is 4. The empty schema and absence of any arguments are entirely consistent with the description, which correctly promises no filtering surface.

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?

Specific verb (return) and resource (USAJOBS federal agency sub-element codes and names), with clear scope stated as the full reference list. It does not explicitly distinguish itself from domain-adjacent siblings like list_occupational_series or list_pay_grades, so it falls short of a 5.

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?

States a concrete use case: resolving agency codes returned by the search tool. That gives the agent clear context for when to call it, though there are no explicit exclusions or named alternative tools.

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