Convert HSV to hex color.
| Name | Required | Description | Default |
|---|---|---|---|
| h | Yes | Hue (0-360) | |
| s | Yes | Saturation (0-100) | |
| v | Yes | Value (0-100) |
| Name | Required | Description | Default |
|---|---|---|---|
| hex | Yes | ||
| hsv | Yes | ||
| rgb | Yes |
Changes observed during successful MCP inspections.
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, and the description only restates the name. It does not disclose rounding, prefix, or edge case handling beyond what the schema implies.
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, concise sentence that is front-loaded and contains no unnecessary words.
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?
For a simple 3-parameter conversion with an output schema, the description completes the core function. However, it omits details like hex format (e.g., # prefix).
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 100% with descriptions for each parameter (e.g., 'Hue (0-360)'). The description adds no additional meaning beyond the schema.
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 'Convert HSV to hex color' uses a specific verb and resource, clearly distinguishing it from siblings like hex_to_hsv or hsl_to_hex.
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 use this tool versus alternatives (e.g., hsl_to_hex). The use case is implied but not explicit.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
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