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

Annotations already declare destructiveHint=true, readOnlyHint=false and openWorldHint=false, so the safety profile is known without the description. The second sentence, "The look is removed," merely restates destructiveHint, and nothing is said about irreversibility, recovery, or behavior when the ID is unknown or already deleted.

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?

It is short and front-loaded, but the second sentence is pure redundancy with the destructive annotation and earns no place. Two sentences where one would carry the same information.

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?

This is an irreversible destructive operation with no output schema and no description of success/failure response. Even with annotations covering the destructive hint, the definition omits whether deletion is permanent, whether an error is returned for a missing ID, and how the caller should confirm the target.

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% and the single parameter is documented as "A saved look id from search_my_looks," including a UUID pattern. The description adds no further meaning about the ID, so the baseline of 3 applies since the schema does all the work.

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?

"Delete a saved look from the user's BeautySpark My Looks" pairs a specific verb (delete) with a specific resource (a saved look), which clearly separates it from get_my_look and update_my_look among the siblings. It does not explicitly name those siblings as alternatives, so it stops short of a 5.

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 when-to-use guidance, no mention of when NOT to delete (e.g. use update_my_look to modify instead), and no note that the ID should come from search_my_looks. An agent must infer the workflow entirely from the sibling list.

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