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 does disclose the output shape (returns the sorted array) and ordering, plus a pricing/rate constraint (5 free trial calls per signed wallet), but says nothing about invalid/non-numeric input handling, duplicate preservation, or payment requirements after the trial.

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?

One sentence, front-loaded with the operation and result, which is efficient. The trailing '🆓 5 free trial calls per signed wallet' is cryptic boilerplate that adds little to the sentence's core message.

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?

With no annotations, no output schema, and 0% parameter description coverage, the definition should compensate with input-format details and edge-case behavior. It does not, leaving the agent unsure how to format `values` or what happens on non-numeric input.

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 the single `values` parameter is typed only as a string with no description. The description says 'numeric values array', hinting at numbers, but never explains the accepted string format (JSON array vs comma-separated list), which is the key ambiguity an agent must resolve.

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 (sorts), resource (numeric values array), order (ascending) and named algorithm (bubble sort), so the agent knows exactly what it does. It does not distinguish itself from the many sibling sorting tools (x402-sort-numbers, x402-quick-sort, x402-merge-sort, x402-insertion-sort), so it stops short of a 5.

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 on when to pick bubble sort over sibling alternatives like x402-sort-numbers, x402-quick-sort or x402-merge-sort, and no note on limitations such as performance on large arrays. The agent is left to infer selection criteria entirely.

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