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

With no annotations, the description carries the full behavioral burden. It discloses the trial/billing model ('5 free trial calls per signed wallet') but says nothing about required auth, error behavior, or output format/structure beyond naming the three band values.

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 states the purpose immediately. The emoji and trial-call clause add slight noise but the core is efficient.

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, and all three parameters are undocumented in the schema. The description should compensate with input format and return-value detail, but it leaves the key questions unanswered.

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 coverage is 0% and all three params are untyped strings with no descriptions. The description names 'values', 'period', and 'multiplier', but adds no format detail — notably how the values array is passed as a string (JSON, comma-separated?) or the multiplier's expected type.

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 clear verb ('Computes') and resource ('Bollinger bands'), and enumerates the outputs (middle, upper, lower). It is distinguishable from siblings like x402-sma or x402-macd by name, but the description itself does not explicitly contrast them.

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 when-to-use or when-not-to-use guidance is given. The only extra sentence is a promotional note about free trial calls, which is billing information rather than usage context.

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