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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world), and the description adds genuinely useful context beyond them: a 10-result cap, the fact that opening hours and closures are not verified, and geographic coverage limits. This is meaningful disclosure the annotations do not provide.

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?

The core purpose sentence is efficient, but it is preceded by a coverage/marketing sentence and followed by a licensing paragraph, so the operative information is not front-loaded. Roughly half the text is geographic framing and legal terms rather than invocation guidance.

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 no output schema, the description usefully states the return shape (up to 10 catalog matches with descriptions and links) and the key caveat about unverified hours. For a two-parameter search tool, this is close to complete, missing only query-matching behavior.

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 coverage is 50% (only `state` is documented). The description partially compensates by clarifying that `query` accepts names or categories and that `state` is optional, but it adds no format or matching-behavior detail for `query` beyond what the schema already implies, so the baseline 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?

"Find road-trip stops by name or category, optionally within a U.S. state" gives a specific verb (find/search) and resource (stops) with the two filtering dimensions. It is clearly the search tool among the drive-oriented siblings, though it never explicitly contrasts itself with get_drive/list_drives/plan_drive.

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 by "by name or category, optionally within a U.S. state," and the licensing paragraph effectively states a when-not-to-use condition (bulk extraction/redistribution). However, there is no explicit guidance on when to prefer this over the sibling drive tools or how to handle a query that returns nothing.

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