util_x402_resource_summary

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

With no annotations, the description must disclose behavioral traits. It states a summarization action but does not explain how the tool operates (e.g., HTTP requests, required inputs, side effects). No mention of authentication, rate limits, or potential errors. This is a significant gap for a tool that likely makes network calls.

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 is a single 12-word sentence, which is concise but overly terse. It lacks structure and fails to convey essential information. While brevity is positive, the sentence is not well-formed for tool guidance and omits crucial details, so it balances to a middle score.

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?

Given no output schema, no annotations, and a free-form input schema with 0% coverage, the description is severely incomplete. It does not explain input format, output structure, or how the tool differs from sibling x402 tools. An agent cannot reliably invoke this tool with the provided information.

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 input schema has one required property 'arguments' which is a free-form object with no description. The tool description provides zero additional meaning about what parameters the 'arguments' object should contain. With schema description coverage at 0%, this is a critical omission—the agent has no clue what input to provide.

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 the tool summarizes a server's .well-known/x402 resources, pricing surface, networks, and paths. It identifies the specific resource and aspects covered. However, it does not differentiate from sibling x402 tools like util_x402_server_audit or util_x402_server_probe, so purpose is clear but not fully distinguished.

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 guidance on when to use this tool versus alternatives. No mention of prerequisites, context, or exclusions. The description provides no usage context beyond the basic action, leaving the agent to infer appropriate scenarios.

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