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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and a closed world, so the safety profile is fully covered. The description adds useful content context — that the presets are complete ('every limit and endorsement spelled out') — but says nothing about return format or how the presets are keyed, which would matter for feeding check_certificate.

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 sentence with no filler, and the resource is front-loaded. The colon list of presets makes it slightly run-on, but nothing is wasted.

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?

For a zero-parameter, read-only lookup with no output schema, the description is nearly sufficient: it identifies the resource, the consuming sibling, and the two presets. It could name the identifiers an agent must pass to check_certificate, but nothing essential is missing.

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?

The tool takes zero parameters, so the baseline is 4. The description correctly implies the call needs no input and simply enumerates what comes back, adding no misleading parameter language.

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 states the resource precisely (ready-made insurance requirement sets) and names the sibling that consumes them (check_certificate), and even enumerates the two available presets. It is clear what the tool returns, though the listing verb itself is only implied by the title rather than stated.

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?

Usage is implied: the presets exist to be passed to check_certificate, so an agent can infer this tool is for discovering preset identifiers before calling it. However, there is no explicit when-to-use guidance and no contrast with the alternative build_insurance_requirements, which is the obvious competing path for a custom requirement set.

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