offers

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

There are no annotations, so the description must disclose behavior. It only lists action names without explaining their effects, side effects, or whether any are destructive. 'clip_all' is ambiguous and potentially destructive, but nothing is clarified.

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 extremely short, but this is under-specification rather than effective conciseness. 'Coupons.' is a noun fragment, and the action list adds little context. It could be summarized in one proper sentence, but it lacks essential 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?

With 4 parameters, no output schema, and no annotations, the description should explain the tool's behavior and parameters. It doesn't describe return values, effects, or how actions differ. This is completely inadequate for a multi-action tool.

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 input schema has no descriptions for any parameters (0% coverage). The description only repeats the action enum, offering no explanation for 'cat', 'limit', 'save_to_file', or even what each action does. It fails to compensate for the schema's lack of descriptions.

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 'Coupons. action: list|clip_all|sync' indicates the tool deals with coupons and lists three possible actions, but does not explicitly state what the tool does (e.g., 'lists coupons'). It provides a resource and an action enum but lacks a clear verb-oriented description, making it vague.

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?

No information is given about when to use this tool over siblings like 'deals' or 'offers'. There is no mention of prerequisites, contexts, or alternatives.

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