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

No annotations exist, so the description carries the full behavioral burden. It discloses a pricing/auth-adjacent fact (free trial calls per signed wallet), which is genuinely useful, but says nothing about whether the operation is read-only, what data comes back, rate limits, or what happens when trial calls run out.

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 short sentences, front-loaded with the core purpose. Slight waste in the 'Dex Scanner:' prefix, which merely restates the tool name, but nothing else is padding.

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 annotations, no output schema, and 0% parameter documentation, the description is thin for a two-parameter scanner. It covers the what and the pricing model, but the parameter contract and return shape remain entirely unspecified.

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 0% and both 'token' and 'address' are undocumented, yet the description never explains what either parameter means or whether they are filters, targets, or alternatives. It also gives no hint that both are optional, so an agent cannot infer whether calling with no arguments is a valid 'scan all new pairs' request.

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 gives a concrete verb and resource: scan DEXes for new pairs and liquidity. That is specific enough for an agent to know the tool's function, but it never distinguishes itself from closely-named siblings such as x402-dex-depth, x402-new-token-check, or x402-dex-price, which plausibly overlap.

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 when-to-use guidance, no exclusions, and no named alternative for the many other DEX/token tool siblings. The only usage-adjacent content is a pricing note about 5 free trial calls per signed wallet, which is a billing constraint rather than invocation guidance.

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