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

With no annotations, the description carries full responsibility for behavioral disclosure, but it only names the subject matter. It doesn't disclose whether this is a read operation, a network fetch, computes wall sizes, or returns any structure at all. This is virtually no behavioral information beyond the tool name.

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 text is short, but brevity here is under-specification, not economy. A single sentence that paraphrases the tool name leaves no actionable content and does not front-load purpose or operational context.

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 specialized tool with no output schema and no annotations, this description is far too minimal. It omits what the result is, how to interpret a 'wall', and what token format is expected. Even a one-parameter utility needs more to be called correctly.

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?

Schema description coverage is 100% (the token property has a description), so the baseline is 3 even though the mcp description adds no parameter detail. The schema says 'Token to process', which names the parameter but leaves the format unspecified. The tool description does nothing to clarify whether token is an address, symbol, or internal ID.

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 'Polymarket order book walls' is essentially a noun phrase that restates the tool name; it never states a verb or action such as fetch, list, or compute. It also doesn't distinguish this tool from closely related siblings like x402-poly-depth, x402-poly-clob, or x402-poly-price.

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?

There is no guidance on when to choose this tool over the many Polymarket siblings. The description provides no context for usage, no exclusions, and no alternative routing. An agent gets no help deciding between x402-poly-walls and adjacent tools.

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