auditUrlAgentReadiness

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

Annotations already establish readOnlyHint=true, openWorldHint=true, and destructiveHint=false, so the safety profile is covered. The description does add genuine behavioral context beyond that: it is a paid call (0.010 USDC on Base) and it inspects CSS/DOM for injected traps. That payment requirement is real added value, though no rate limiting or response behavior is described.

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 description restates the same content three times — the artifact list (llms.txt, x402, openapi.json, MCP) appears in the first and third sentences, and the opening and closing both say it audits websites. The headline is front-loaded, but the redundancy and the off-topic middle sentence waste space rather than inform.

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 one-parameter read tool this could be complete, but with no output schema the description is responsible for conveying what comes back, and 'Returns verified safety metrics' is unspecific. Worse, the misleading usage clause actively risks routing an agent here for contract/wallet/DEX tasks it cannot perform.

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 a single required 'url' parameter with 100% schema description coverage, so the schema already documents it fully. The description adds no format, syntax, or validation detail (e.g., whether scheme is required or whether bare domains are accepted), so the baseline 3 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 opening sentence gives a specific verb+resource — audit a domain/URL for AI agent readiness artifacts (llms.txt, x402, openapi.json, MCP card) plus prompt-injection traps. However, the immediately following 'Usage' sentence claims it audits smart contracts, wallet addresses, and DEX liquidity, which contradicts and muddies the stated purpose, so an agent cannot cleanly tell what this tool actually inspects.

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?

It does provide an explicit 'call when' clause, but the listed triggers (smart contracts, wallet addresses, DEX liquidity) belong to sibling tools like checkSmartContractHoneypot, analyzeEvmWallet, and inspectUniswapPoolState, not to a URL readiness auditor. This is misleading guidance rather than a routing rule, leaving no reliable when-to-use signal.

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