color_info

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint, and destructiveHint=false, so the safety profile is fully covered by structured data. The description adds no behavioral context beyond a loose hint that complementary colors are returned; it does not describe the response shape, whether the lookup depends on an external service succeeding, or format handling.

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 short sentence with no filler, front-loading the operation. It is terse to the point of under-specification rather than redundancy.

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 tool with two entirely undocumented parameters and no output schema, the description does far too little: it neither disambiguates the 'format' parameter nor routs the agent against the crowded set of color siblings. An agent cannot call this correctly with confidence.

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 0% for two parameters. The description implies 'color' accepts a color value but gives no syntax (hex, name, rgb?), and the 'format' parameter is never mentioned at all, leaving its accepted values completely unknown.

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 a verb (get) and resource (information about a color) and gives examples of returned fields (name, complementary). However, the trailing 'etc.' is vague and nothing distinguishes it from color_convert, color_name_lookup, color_hex_convert, or thecolorapi_id, all of which plausibly return color information.

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 statement of when to prefer this tool over the many color siblings, no prerequisites, and no exclusions. The agent must infer the distinction purely from tool names.

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