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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, covering the safety profile. The description adds minor behavioral context by naming the returned fields (price, priority, purchase status) but does not disclose other traits like default status behavior or pagination. No contradiction with 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 a single, front-loaded sentence that states the action, target, and included fields with zero wasted words. Every word earns its place.

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 simple read-only list tool with one optional parameter and no output schema, the description plus schema covers the essential calling context: the action, the optional filter, and the fields returned. There is no explicit mention of return format or empty-list behavior, but the simplicity and annotations mitigate that gap.

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 single parameter (status) is fully documented in the schema with an enum and a default note, so schema coverage is 100%. The description does not add parameter-level meaning beyond the schema, which is acceptable at baseline; the enum values and default are clear from the schema alone.

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 uses a specific verb ('List') and resource ('wishlist items') and names the output fields (price, priority, purchase status), making the tool's function unambiguous. However, it does not explicitly distinguish itself from sibling tools—though no other list tool targets wishlists, so the risk of confusion is low.

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 implies when to use the tool ('when you want to view wishlist items') but provides no explicit when/when-not guidance or alternative routing. The optional status filter is documented in the schema, not in the description, so the usage context is adequate but not spelled out.

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