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

With no annotations, the description carries the full disclosure burden. It does add real behavioral context by stating the width default (40) and the access model ('5 free trial calls per signed wallet'), which tells the agent this is a paid, wallet-authenticated call. It still omits what happens when both 'text' and 'input' are supplied, and any error 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?

The functional sentence is front-loaded and free of waste, with the default width stated inline. The trailing promotional clause about free trial calls is marginally extraneous but short.

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?

No output schema and no annotations mean the description should explain more. Three undocumented parameters, an unresolved text/input ambiguity, and no sibling disambiguation leave the agent materially under-informed for correct invocation.

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 three parameters, so the description must compensate. It only mentions 'text' and 'width'; the 'input' parameter is never explained, and the surprising fact that 'width' is typed as a string rather than a number is left unaddressed.

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 (inserts line breaks at whitespace boundaries) and quantifies the default width, so the operation is unambiguous. However, it does nothing to distinguish itself from near-identical siblings such as x402-text-wrap, x402-wrap-text, and x402-insert-newlines, leaving the agent to guess which wrapper tool to pick.

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 conditions, and no named alternative despite the presence of three or more overlapping wrap/text-wrap siblings. The pricing blurb is not usage guidance.

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