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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds value by disclosing what the response contains beyond the raw profile (rating summary and recent reviews), which matters since no output schema exists. However, it does not cover not-found behavior or how many reviews are included.

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 that front-loads the action and resource and appends the enrichment detail without waste. Every clause carries information the agent cannot get from the structured fields.

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 one-parameter read tool with annotations covering safety, the description is nearly complete: it says what is fetched, by what key, and what extra data comes back. The only shortfall is the absence of any note on error/not-found handling, which is minor at this complexity.

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?

There is one required parameter with 0% schema description coverage, so the schema only supplies the name and a non-empty constraint. The description compensates partially by stating lookup is 'by id', clarifying that boatId is an identifier rather than a name or slug. No format or example is given.

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?

States a specific verb ('Get') and resource ('a boat's full profile') with the lookup key ('by id'), and the enrichment clause (rating summary, recent reviews) distinguishes it from a plain record fetch. It does not explicitly contrast with search_boats, but the 'by id' scoping makes the distinction inferable.

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: use this when you already have a boat id and want detail. There is no explicit guidance on when to prefer search_boats first, nor any mention of what to do when the id is unknown or invalid. Adequate but leaves the agent to infer the workflow.

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