complementary_color

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does add one useful bit of transparency: the cost of $0.001 USDC via x402. However, it does not disclose expected inputs, output format, side effects, or failure modes, leaving most behavioral aspects opaque.

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 very short, but it is under-specified rather than appropriately concise. It omits essential functional information, so the brevity is a weakness, not a strength. The phrase 'Colors & Design tool' is vague filler, while the cost note is useful but incomplete context.

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?

This tool has no output schema, no annotations, and a generic input schema, so the description must carry full contextual weight. It fails to explain what inputs are expected, what the complementary color result looks like, or how it relates to other color tools. The description is far too incomplete for an AI agent to invoke correctly.

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 contains a generic 'params' object with a boilerplate description ('Tool parameters as JSON object') and no specific properties. The description does not compensate by explaining what parameters should be passed, such as a color value or format. Thus it adds no meaningful semantic value 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 reads 'complementary color — Colors & Design tool,' which simply restates the tool name and assigns a broad category. It lacks an explicit verb like 'calculates' or 'returns,' so it does not clearly state what the tool actually does. It is closer to a tautology than a functional definition.

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 is provided on when to use this tool versus the many sibling tools such as color_harmony, convert_color, or generate_color_palette. The description implies only that it is a colors-and-design tool, without any context or exclusions.

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