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

No annotations are provided, so the description carries the full disclosure burden, and it discloses nothing: not the input format (how 'values' should be delimited), the sort order, numeric vs string handling, or the output shape. For an algorithmic utility with zero structured coverage of behavior, this is a major gap.

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 description is short but only because it is under-specified, not because it is efficient; it repeats the title verbatim and adds zero information. This mirrors the calibration case where extreme brevity driven by missing content scores below average.

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 only a tautological description, an agent has no basis for knowing the input format, ordering direction, or return value of this one-parameter utility. The definition is not complete enough to call correctly without guessing.

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 single 'values' parameter is documented in the schema ('Values to process'). Per the baseline for high coverage, a 3 is appropriate; the description adds no delimiter, type, or ordering semantics beyond the schema, but it is not required to.

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 is a tautology that restates the tool name ('Quick Sort: Quick Sort'), with no verb, resource, or scope statement. An agent familiar with the quicksort algorithm can infer the intent, but nothing in the text distinguishes this from the many sibling sorting tools (x402-bubble-sort, x402-merge-sort, x402-heap-sort, x402-sort-numbers, x402-sort-strings, etc.).

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 guidance on when to use this tool versus the other sorting siblings, nor any note about input format or constraints. A reader must infer everything from the identifier alone.

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