mailchimp_carts

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It explains what each action returns (carts, full cart record, line items) and that details/lines need cart_id. It does not explicitly state that the tool is read-only or describe error handling, but the action semantics are transparent enough for safe use.

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?

Two sentences: the first states the purpose, the second lists the actions with their requirements. Zero wasted words, information is front-loaded and directly actionable.

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?

Given the moderate complexity (three actions, five parameters, no output schema), the description adequately covers the core usage and dependencies. It omits details about response formats and pagination behavior, but those are partially covered by schema descriptions, and the tool is a read-style data accessor where the listed actions are sufficient for an agent to get started.

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 already covers all parameters at 100% coverage, but the description adds critical semantics by mapping actions to required params ('needs cart_id'). This goes beyond the schema's terse parameter descriptions and clarifies the relationship between action and other 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?

The description clearly states the tool manages 'abandoned and active shopping carts for one store' with a specific analytical purpose. It enumerates three distinct actions (list, details, lines), making it easy to distinguish from sibling tools like mailchimp_orders or mailchimp_products.

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?

It provides a clear use case ('for abandoned-cart analysis') and explains when to use each action, including the prerequisite cart_id for details and lines. However, it does not explicitly mention when not to use this tool or contrast it with alternatives like orders or products, so it falls short of a 5.

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