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, yet it discloses nothing about the operation, the formula applied, required inputs, or the result. It adds zero behavioral context.

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 text is short but vacuous: it duplicates the name rather than conveying information. This is under-specification rather than true conciseness, since no substantive sentence earns its place beyond the title.

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 two-parameter physics computation with no annotations and no output schema, the description should at least state the computed quantity (charge/voltage implies C = Q/V). It provides nothing an agent needs to invoke the tool correctly.

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 100%, so the two parameters (charge, voltage) are already documented in the schema, which sets the baseline at 3. The description adds no further semantics, but it is not required to compensate for a coverage gap.

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 'Capacitance: Capacitance' merely restates the tool name with no verb, resource, or scope. It does not distinguish the tool from siblings such as x402-capacitance-energy or x402-capacitive-reactance.

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 and no mention of alternatives, despite a large family of related physics/electronics tools in the sibling list. An agent cannot infer when this should be chosen over capacitive-reactance or capacitance-energy.

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