shelf_unrate

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

Annotations already declare destructiveHint=true, readOnlyHint=false, and idempotentHint=false, so the safety profile is covered. The description adds nothing beyond that: it doesn't say what happens if no rating exists, whether a confirmation prompt fires (relevant given the 'yes' parameter), or whether the removal is reversible.

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?

A single front-loaded sentence with zero filler. It is efficient, though the brevity comes at the cost of the targeting detail (book-id) an agent actually needs to invoke it.

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 destructive mutation tool with 22 parameters, no required fields, and no output schema, the description is too thin. It should at minimum identify the book-id as the targeting input and note confirmation behavior, neither of which is stated.

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 100%, so all 22 parameters are documented in the schema and the baseline is 3. The description adds no parameter guidance, notably omitting that 'book-id' is the essential input despite no required parameters being marked.

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?

States a specific verb (remove) and resource (your Goodreads rating for a book), which is clear enough to distinguish from shelf_rate and shelf_set by implication. It stops short of naming those siblings explicitly or noting the shelf scope, so it's clear but not maximally differentiating.

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 verb 'remove' implies the inverse-of-rate use case, so an agent can infer when to reach for it. There is no explicit guidance on when to use this versus shelf_set, shelf_unshelve, or shelf_rate, and no mention of prerequisites such as the book needing an existing rating.

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