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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is covered elsewhere. The description adds almost nothing beyond that: the "GET /insurance/list" endpoint string restates read-onlyness, and nothing is said about whether results are unit-scoped, filtered, paginated, or cached. "with their plans" is the only real signal, implying nested plan data in the response.

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?

Two short sentences, front-loaded with the resource and free of filler. It is close to under-specified rather than bloated, but nothing in it 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 simple, no-required-parameter list tool with an output schema absent, the description should at minimum say whether insurances are clinic-wide or per-unit and roughly what the response contains. "with their plans" partially covers the return shape, but scoping and the relationship to unit_id are left unstated.

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 single unit_id parameter is fully documented in the schema, including the 0 = main clinic convention and a cross-reference to feegow_list_units. With 100% schema coverage the baseline is 3; the description itself contributes no additional parameter meaning.

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?

"All accepted health insurances with their plans" states the resource and the returned granularity (insurances plus plans) in a single clear phrase. The list operation is implied rather than stated as a verb, and the description does not distinguish this from the sibling feegow_list_professional_insurances, which is the most likely confusion point.

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 when-to-use, when-not-to-use, or prerequisite guidance is given. The sibling lookalike (feegow_list_professional_insurances) is never mentioned, so the agent must infer the distinction from the names alone.

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