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

No annotations are provided, so the description carries the full behavioral burden. It discloses a quota ('5 free trial calls per signed wallet'), which is genuinely useful, but says nothing about expected units (farads?), handling of string inputs, or division-by-zero cases.

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?

A single front-loaded sentence that gives the operation and the formula with no wasted words. The promotional emoji and free-trial banner dilute it slightly but do not obscure the core meaning.

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 physics calculation with no annotations, no output schema, and zero schema documentation, the description leaves key information missing: output units, precision, and how invalid or zero voltage is handled. It is under-specified relative to the tool's complexity.

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% and both parameters are typed merely as strings with no unit or format guidance. The description implies charge is the numerator and voltage the denominator, but adds no unit system (SI vs other), precision, or acceptable value ranges.

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 (Computes) and resource (capacitance) and even supplies the formula charge/voltage, which distinguishes it from close siblings like x402-capacitance-energy and x402-capacitive-reactance. It stops short of explicitly naming which sibling to use instead.

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 or when-not-to-use guidance. The only contextual cue is the implied formula, leaving the agent to infer the boundary with x402-capacitance-energy and related siblings on its own.

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