bookshelf_delete_bookfile

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

The annotation destructiveHint=true already indicates the destructive nature, so the description's 'DESTRUCTIVE: this deletes data' merely restates the annotation without adding new context. It does not disclose side effects (e.g., whether the action is irreversible, cascades to related data, or requires specific permissions).

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 second sentence ('DESTRUCTIVE: this deletes data.') is redundant given the destructiveHint annotation, violating the principle that every sentence should earn its place. It is concise but includes unnecessary repetition.

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 delete tool with one parameter and an output schema, the description is incomplete. It fails to explain the meaning of 'id', the expected return value, or any consequences of deletion. The tool's simplicity is outweighed by the missing parameter and behavioral details.

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 required parameter 'id' with no description and schema coverage is 0%. The description does not explain what 'id' refers to (e.g., the bookfile ID), how it should be obtained, or any constraints. With zero coverage and no compensation, the parameter is essentially undocumented.

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 clearly states the action ('Delete') and the resource ('bookfile'), which is specific and distinguishes it from sibling delete tools like delete_author or delete_book. It is not a tautology and immediately communicates what the tool does.

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 provides no guidance on when to use this tool versus alternatives, such as delete_book or bulk_delete_bookfile. It lacks context about prerequisites, use cases, or exclusions, offering only a bare statement of the operation.

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