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

Annotations already establish readOnlyHint, idempotentHint, destructiveHint=false and a closed-world scope, so the safety profile is covered. The description adds real behavioral context beyond that: results are alphabetical, paginated at 50 per page by default, and each entry carries name, price and last edit time.

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?

Three tight sentences: trigger first, return shape and pagination second, exclusion third. Every sentence carries new information and there is no filler.

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 details need not be enumerated, yet the description still characterizes the payload usefully. Pagination, ordering and scoping are all covered between the description and the schema, leaving no gap an agent would need to guess at.

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 100%, so limit, cursor and clinicId are already documented in the schema itself. The description restates the 50-per-page default but adds nothing about clinicId scoping or cursor semantics beyond what the schema says. Baseline 3 is appropriate.

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 a concrete resource (catalog service names with price and last edit time) and frames the trigger scenario ('what their medical practice charges for a consultation, check-up, vaccination or other service'). It also rules out the most likely confusion (patient medical history). It stops short of naming which sibling tool to use instead when the request is clinical rather than price-related.

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?

Explicit positive trigger ('Use this when someone asks what their medical practice charges...') plus an explicit exclusion ('Not for a patient's medical history or the care they received'). No alternative tool is named for the excluded case, so the routing is clear but not fully closed.

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