bookshelf_update_author

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

Annotations already indicate readOnlyHint=false, so the 'WRITE: this modifies your Bookshelf instance' line adds little beyond restating the obvious. It provides no details about authorization, reversibility, or side effects, and the reference to 'moveFiles' is unexplained.

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 short and front-loaded, but the 'Query params: moveFiles' clause is uninformative and poorly structured. It is concise without being necessarily clear.

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 tool with three parameters including a nested body object, the description is too sparse. It doesn't explain the body schema, the effect of move_files, or the required id, leaving the agent without enough context to invoke the tool confidently.

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 0%, and the description must compensate but does not. It only mentions 'Query params: moveFiles' without explaining its purpose, and says nothing about the required id or the body object.

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 states 'Update author,' which clearly names the action and resource. It does not explicitly differentiate from the sibling bulk_update_author, so it misses the top mark but is otherwise specific.

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 guidance on when to use this tool versus alternatives like create_author, delete_author, or bulk_update_author. The 'WRITE' note is a safety warning, not usage direction.

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