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

No annotations are provided, so the description carries the full burden. It discloses that the tool is metered (~207.26 avg credits) and uses pagination. However, it does not state whether the operation is read-only, whether there are side effects, rate limits, or what happens on errors. The billing information is a useful behavioral trait, but the description fails to cover other important behavioral aspects that an agent would need to know for safe and effective 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?

The description is extremely concise, consisting of two short sentences. It front-loads the primary purpose ('Lists products using pagination') and then mentions cost. No wasted words. It is clear and well-structured, though sparse in content. The brevity is appropriate for a minimal description, even if it lacks depth.

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 that the tool has 5 parameters, no output schema, and no annotations, the description is too sparse. It does not explain what fields are returned, how to interpret the pagination response, or when to use this tool compared to siblings. The description only states the basic purpose and billing, leaving significant gaps in context that an agent would need to make an informed decision. This is inadequate for a tool of this complexity.

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 100% coverage with detailed descriptions for each parameter, including credit costs and dependencies (e.g., historyPrices requires marketPrices=true). The description itself only mentions 'pagination' generally, adding little beyond the schema. Since the schema already documents parameters thoroughly, the baseline of 3 is appropriate; the description does not need to duplicate schema details.

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 states a specific verb+resource: 'Lists products using pagination.' This clearly indicates the tool's core function. However, it does not explicitly distinguish it from siblings like search or product_of_market, which might also list products. The name 'getProducts' helps differentiate, but the description alone is somewhat generic. Still, it provides a clear primary purpose.

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 no guidance on when to use this tool versus alternatives. It does not mention search, history, or other sibling tools, nor does it state when this tool is preferred. The only directive is about pagination, which is a usage detail rather than a selection criterion. This leaves the agent to infer usage context from the name alone.

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