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

No annotations are provided, so the description carries the full behavioral burden. It states prices are 'public' and that checkout on orcarw.com is the source of truth before payment, which usefully limits reliance on the output for payment. However, it never confirms read-only behavior, side effects, freshness, or authentication needs.

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 tight sentences, front-loaded with the content scope and then the payment caveat. The noun-phrase opening is terse but not padded, and every element is relevant. It could be marginally clearer with an explicit verb, but there is no wasted text.

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 simple pricing lookup with full schema coverage, the description covers scope and the main 'source of truth' caveat. However, with no annotations and no output schema, it omits usage routing and any indication of return structure. It is minimally viable but has clear gaps.

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?

There is one optional enum parameter, and the input schema fully documents its meaning and default. The description adds no additional syntax or interpretation beyond the schema. Per the calibration rule, a 100% schema description coverage yields a baseline of 3.

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 enumerates the exact price domains (marketplace, Team OS, Training, Scout), so the resource is clear. However, it is a noun fragment without a verb and does not explicitly differentiate itself from sibling tools. The name supplies the action, but the description itself lacks a clear 'returns pricing' statement.

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 when-to-use, prerequisites, or alternative tools are named. The checkout caveat tells the agent to verify payment elsewhere, but it is a caveat rather than routing guidance. There is no guidance on when this tool should be selected over siblings.

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