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

With no annotations provided, the description carries the full burden of behavioral disclosure. It conveys the basic pure-function operation but stays silent on important behavior: whether outputs are clamped to the target range or allowed to extrapolate, how zero-width source ranges (fromMin == fromMax) are handled, rounding/type behavior, and what the return value looks like. No annotation contradiction exists, but the description is too thin for an unannotated tool.

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?

Two sentences with the primary operation front-loaded and the usage hint immediately after. The redundant 'Remap:' prefix wastes a few characters, but the overall size is appropriately compact and the order is sensible.

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?

The tool requires five parameters to function, yet the schema accepts none — an agent cannot construct a single valid invocation from this definition. There is no output schema, no mention of the return value, and no edge-case contract. For a tool whose entire purpose is a parameterized numeric transformation, the missing parameter contract is a crical completeness failure.

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 description is the only source of parameter semantics — it names five conceptually meaningful inputs (value, fromMin, fromMax, toMin, toMax) with clear roles, which is genuinely useful given the empty schema. However, the input schema declares zero properties, so the description instructs the agent to provide arguments the schema will reject. This structural mismatch makes the parameter guidance misleading rather than helpful.

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 states a specific operation — remapping a value from one numeric range to another — with clear verb and resource. It names the exact inputs needed (value, fromMin/fromMax, toMin/toMax). However, it does not differentiate itself from a dense field of closely related siblings like x402-map-to-range, x402-map-value, x402-lerp, and x402-interpolate, and the 'Remap:' prefix merely echoes the tool name.

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 is given about when to choose this tool over the numerous near-equivalent siblings (x402-map-to-range, x402-map-value, x402-lerp, x402-interpolate, x402-clamp). There are no usage conditions, exclusions, or mentions of what distinguishes remapping from interpolation or mapping. An agent must guess which of the overlapping range-conversion tools fits the task.

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