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

With no annotations, the description carries the full behavioral burden. It does disclose the return shape (rows of stripped td/th text plus a table count), which is useful output context, but says nothing about input requirements, empty or malformed HTML handling, size limits, or truncation behavior.

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?

Front-loaded with the tool name, followed by a single efficient sentence about behavior and a short pricing note. The emoji pricing line is slightly noisy but does convey billing info, so nothing is truly wasted.

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?

There is no output schema, no annotations, and two undocumented parameters, so the description must do more. It covers purpose and rough output shape but leaves the html/input ambiguity and any edge-case behavior entirely unexplained.

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% for two parameters, and the description never mentions either 'html' or 'input'. The presence of two seemingly overlapping string inputs with no explanation of which to supply is a real ambiguity the description should resolve but does not.

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?

States a specific verb and resource: it extracts every HTML table, converts td/th text into stripped rows, and returns a table list with a count. This is clearly distinguishable from near-siblings like x402-html-text-extract or x402-strip-html, though the description never names them explicitly, leaving sibling differentiation to inference.

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 says what the tool does but gives no when-to-use guidance, no prerequisites, and no alternative tools to consider. It notes pricing (5 free trial calls per signed wallet) but that is billing context, not usage guidance.

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