execute_mouser_cart_change

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

The annotations already indicate destructive behavior (destructiveHint=true), and the description adds useful constraints about the token's one-time nature and expiration, informing the agent of potential failure conditions. No contradiction with annotations exists.

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 sentence (14 words) that front-loads the verb 'Execute' and includes no redundant information. Every word adds value.

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?

The description covers the essential execution constraints and is well-supported by annotations (destructiveHint, openWorldHint). Without an output schema, the result of execution is not described, but given the simple parameter structure, this is a minor 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 schema has 0% description coverage, but the description adds meaning to the single parameter (confirmation_token) by calling it a 'one-time token' and linking it to a specific preview. This compensates for the lack of schema-level explanation.

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 clearly states the action ('Execute') and the specific resource ('Mouser cart preview') with constraints ('exact, unexpired', 'bound to the supplied one-time token'). This distinguishes it from sibling tools like preview_mouser_cart_change, which only previews the change.

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 clear context for when to use the tool (executing a specific preview using a valid one-time token) but does not explicitly name alternatives or say when not to use it. The distinction from preview_mouser_cart_change is implied by the word 'Execute'.

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