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

Annotations already declare destructiveHint=true and idempotentHint=true, so the safety profile is known. The description adds meaningful context beyond that: removal only affects cookbook membership, and the underlying recipe remains searchable. It doesn't discuss reversibility or permissions, but adds real behavioral value.

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?

Front-loads the core action and scope, then adds a useful clarifying sentence. The quoted example phrases are a bit informal but earn their place as trigger cues; no wasted sentences.

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?

With an output schema, full parameter descriptions, and annotations covering safety, the remaining description gap is small. It covers the key ambiguity (scope of removal and non-destruction of the recipe), though it could mention prerequisites such as the cookbook existing or recipe ownership.

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 coverage is 100%, so the parameter meanings are already documented. The description restates the cookbook parameter's semantics in nearly the same terms as the schema ('With cookbook set it leaves only that cookbook; without it the recipe is removed from every cookbook'), adding clarity but little new information beyond structured fields.

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+resource ('Take a recipe out of the user's cookbooks') and makes the scope explicit in both modes. It is clearly the inverse of save_recipe and cannot be confused with delete_cookbook, especially since it notes the recipe itself is untouched.

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?

Provides user-utterance triggers ('remove that from my saved', 'take it out of Christmas') and explains the cookbook-scoped vs. global behavior. It does not explicitly contrast with siblings like delete_cookbook or list_saved, but the context is clear enough for confident selection.

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