bookshelf_get_customformat_schema

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

Annotations declare readOnlyHint=true, matching the 'List' verb. However, the description adds no behavioral context beyond the annotation, such as what the returned schema actually describes, whether it includes all customformats or a single schema, or any limitations. With a read-only operation, this is a minor gap but still no value added.

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 extremely concise at four words. However, it is under-specified to the point of being little more than the tool name. Conciseness is not a substitute for clarity; the structure is minimal but acceptable for a trivial tool.

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 output schema exists and the operation is a simple read-only schema retrieval, the description could still explain the purpose of the schema (e.g., 'Returns the JSON schema for customformat fields'). Without this, and with many sibling schema tools, the description is incomplete for an agent to fully understand what data it will receive.

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 are zero parameters, so the baseline is 4. The description need not explain parameters since none exist.

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 'List customformat schema' essentially restates the tool name. It does not distinguish from sibling schema tools (e.g., get_downloadclient_schema) or from get_customformat/list_customformat. It conveys only that it somehow relates to customformat schemas but adds no detail about what the schema contains or how it differs.

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?

No guidance on when to use this tool or alternatives. For instance, it does not mention that this schema can be used before creating or updating customformats, nor does it contrast with list_customformat or get_customformat. It simply states an action with no context.

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