hsl_to_rgb

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

No annotations are provided, so the description carries the full burden. The only behavioral detail is the cost: 'Costs $0.001 USDC via x402.' This is useful, but the description does not disclose the return format, whether the operation is read-only, error behavior, or any limitations. For a pure conversion tool, more transparency about output structure would be expected.

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 extremely brief, consisting of a single phrase and a cost note. It contains no filler words, and every word adds some information. However, the brevity comes at the expense of necessary usage and parameter details, making it under-specified rather than appropriately concise.

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?

Given the lack of output schema and annotations, the description is incomplete. It does not explain the expected input structure or the return value for a successful conversion. While the tool's complexity is low, the description fails to provide enough information for an agent to reliably invoke it.

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 input schema only defines a generic 'params' object with no nested property descriptions, effectively providing little real coverage of the actual HSL input fields. The description does not compensate by explaining whether to pass h/s/l as separate keys, an array, or a string. The agent has no way to construct a valid call from the given information.

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 'hsl to rgb' which clearly indicates the conversion from HSL to RGB color space, and it categorizes itself as a 'Colors & Design tool'. However, it lacks an explicit verb like 'converts', and the description heavily relies on the tool name itself to convey the purpose. It is distinguishable from siblings like hex_to_hsl and rgb_to_hsl by naming the specific source and target formats.

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 alternatives, such as rgb_to_hsl or hex_to_hsl. The description does not mention any conditions, prerequisites, or alternative tools. It only provides a category label, so the agent has no context for selection.

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