bookshelf_bulk_update_author

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

The description explicitly states 'WRITE: this modifies your Bookshelf instance,' which adds a clear behavioral warning about side effects. However, this largely aligns with the readOnlyHint=false annotation, and no additional details are provided about scope (e.g., which authors are affected, whether fields are overwritten, or rollback options). The warning is useful but does not go far beyond the annotations.

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 very short ('Bulk update author editor. WRITE: this modifies your Bookshelf instance.'), with no filler words. Each part conveys a core message, and the write warning is front-loaded. However, the first phrase is grammatically awkward, and the extreme brevity leaves out essential details, so it is not a perfect 5.

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 tool's complexity (bulk mutation with an arbitrary body) and the minimal schema, the description is woefully incomplete. It does not explain what the body should contain, how to specify target authors, or what the response/result will be. An agent cannot safely or correctly invoke this tool without additional external knowledge.

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 input schema contains only a generic 'body' object with additionalProperties=true and no property descriptions, yielding 0% schema description coverage. The description does not compensate by explaining expected fields, author identifiers, or update payload structure. An agent has no way to construct a valid request body.

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 'Bulk update author editor' indicates it updates authors in bulk, which distinguishes it from single-entity update tools like bookshelf_update_author. However, the phrasing is noun-like and slightly awkward—'editor' adds minor ambiguity—but the core verb and resource are clear.

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 bookshelf_update_author or bookshelf_bulk_delete_author. It only warns that it modifies the instance, which is a side-effect statement rather than usage direction. No context about ideal scenarios or prerequisites is given.

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