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

Annotations already cover the safety profile (readOnly, idempotent, openWorld, non-destructive), so the description's added value is the provenance claim: every returned name has passed the refusal screen and a USPTO search. That is a substantive, non-obvious quality guarantee an agent could not derive from the structured fields. It stops short of saying how many suggestions come back or whether the USPTO search is live.

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 clipped sentences, zero waste, with the differentiating detail (passed screening and USPTO search) up front. It is arguably over-compressed rather than padded, which is the better failure mode here.

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?

With 100% schema coverage and full annotations, the remaining burden on the description is the return shape, and it only half-delivers: it says 'names' but not how many, in what form, or whether they are ranked. No output schema exists to fill that gap.

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%, with all four parameters documented in the schema itself (mark, classes, reasons, description). The description adds no syntax, format, or interaction detail beyond that, so the baseline of 3 applies.

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 identifies the output as alternative names for a risky mark, which is specific enough to distinguish it from search_marks or screen_mark. However, it is written as a noun phrase about the return value rather than stating the action ('suggests replacement marks'), and it never names the siblings it competes with.

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?

There is no explicit when-to-use guidance and no alternatives named. The phrase 'risky mark' plus the required 'mark' parameter hint that this follows a failed screen_mark, but the agent must infer that routing decision on its own.

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