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 does disclose the return shape ('Returns id, name, price, billing'), which is useful, but it never states that this is a read-only, side-effect-free operation, nor any auth or rate-limit behavior. Reasonable but incomplete for a zero-annotation tool.

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?

Front-loaded with the action and content in a single dense sentence, followed by a short return-field note. Every clause earns its place, though the price parentheticals make it slightly long.

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 no parameters and no output schema, the description compensates by naming the returned fields. For a simple catalog listing that is sufficient; only the read-only nature and follow-up routing are unstated.

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 tool takes zero parameters, so there is nothing for the description to disambiguate; the schema is empty and 100% covered. Baseline 4 applies.

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 opens with a specific verb ('List') and resource ('what OCKLU sells to agents and their owners'), then enumerates the exact catalog items. It is clearly distinguishable from siblings like detail_produk (single-item detail) and cara_beli (purchase flow), though it does not name those alternatives explicitly.

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?

Usage is implied by the word 'catalog' — an agent can infer this is the browse/overview tool — but there is no explicit when-to-use, when-not-to-use, or pointer to detail_produk or cara_beli for follow-up steps. Adequate but with a clear gap.

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