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

With no annotations provided, the description must carry behavioral disclosure. It clearly states the tool does NOT charge anything and provides guidance on human authorization, which are important behavioral traits. It doesn't describe authentication requirements or rate limits, but the core safety behavior is well-communicated.

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 two sentences, front-loaded with the purpose, and the second sentence adds critical behavioral context without any wasted words.

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 tool that returns a link and involves no charging, the description covers the key safety point. However, the parameter semantics are unclear, and there's no mention of what the returned link contains or its format. Given no output schema, some detail on return value would help.

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 for the single 'id' parameter. The description doesn't explain what 'id' refers to (product ID? order ID?), leaving the parameter semantics completely ambiguous. This is a significant gap.

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 action: retrieving a checkout or order link for a product. This is clear and actionable, though it doesn't explicitly differentiate itself from siblings like detail_produk which might also return product info.

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 clear context on when to use it: to get a checkout link for purchase, with an explicit warning that it does not charge anything. It advises giving the link to a human or using it only with authorization, which is helpful guidance for an agent.

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