bookshelf_get_downloadclient

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

The readOnlyHint annotation already declares this is a read-only operation, and the description 'Fetch' aligns with that. The description adds only that it fetches a single item by id, which is already evident from the name and schema. No additional behavioral context (e.g., error handling, permissions) is provided.

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 description is a single, front-loaded sentence with no superfluous words. Every word earns its place, achieving maximal conciseness.

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?

Given the simple nature of the tool, a single required id parameter, and the presence of both readOnlyHint annotation and an output schema, the description is adequate. It does not mention potential 404 errors or response details, but these are not critical for such a straightforward getter.

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 schema has one parameter 'id' (integer) with 0% description coverage. The description's 'by id' reiterates the parameter's role without adding detail beyond the schema. However, since the parameter is self-explanatory and the name clarifies its meaning, the description partially compensates for the low coverage.

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 'Fetch a single downloadclient by id' uses a specific verb and resource, clearly indicating a single-object retrieval. It distinguishes itself from sibling tools like list_downloadclient by specifying 'single' and 'by id'.

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?

The description implies usage when a specific downloadclient id is known, but it does not explicitly mention alternatives or exclusions. It does not state 'to get all, use list_downloadclient', leaving the context implicit rather than explicit.

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