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

With no annotations, the description carries the burden of disclosure and does well: it reveals the $0.01 x402 cost, the combined data sources, and the recommendation output. It does not fully describe failure modes or the exact mechanics of x_payment, but it is honest about the paid, aggregator nature of the call.

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 dense sentences efficiently cover cost, behavior, output, use case, and alternative. The most important facts are front-loaded, and every sentence earns its place without fluff.

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 paid connector with no annotations and no output schema, the description covers the core invocation context: what it does, what it costs, what it returns, and when to use it. The main missing piece is the x_payment parameter format, but the description still gives enough context for an agent to decide whether and how to call this tool.

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 already documents address and chain well, including defaults and options. The description adds only general payment context via '$0.01 via x402' but does not explain the undocumented x_payment parameter's structure or requirements. With 67% schema coverage, the description does not need to compensate heavily, but the x_payment gap remains.

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 clearly states that this tool fuses GoPlus security checks and Dexscreener market data into a single GO/CAUTION/AVOID recommendation. It names the specific resources and the aggregate behavior, and it differentiates itself from alternatives like chaining separate rug-check and DEX calls.

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?

The description explicitly frames this as the call trading and sniping agents should make instead of chaining separate rug-check and dex tools. It gives a clear use case and names the alternative pattern, though it does not list specific sibling tools or exclusion conditions.

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