color_convert

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

No annotations are provided, so the description carries full behavioral disclosure. It specifies input formats and bidirectional conversion, but does not clarify output format specifics (e.g., whether RGB output is 'rgb(r,g,b)' or 'r,g,b'), case sensitivity, handling of invalid inputs, or alpha channel support. This is a partial disclosure but leaves important behavioral details ambiguous.

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 a single, concise sentence that front-loads the purpose and formats. Every word contributes essential information, with no redundancy or filler.

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 low-complexity tool with 2 parameters and no output schema, the description is mostly complete. It covers the core conversion purpose and accepted input formats. However, it omits details like default 'from' behavior (if 'from' is omitted, defaults to hex) and precise output format, which would be helpful. Still, given the tool's simplicity, the description is reasonably complete.

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%, so the description must compensate. It does illustrate the value format (HEX or RGB strings) and implies the 'from' parameter via the two directions. However, it doesn't explicitly document the 'from' parameter's default or behavior, nor does it clarify the expected exact syntax for 'value' (e.g., optional spaces). The description adds some meaning but not enough to fully compensate for the missing schema descriptions.

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 clearly states the tool converts between HEX and RGB color formats, with specific format examples (#RRGGBB, rgb(r,g,b), r,g,b). It uses a specific verb (互转, mutual conversion) and a specific resource (color formats), distinguishing it from all sibling tools which deal with encoding, text, or network operations.

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?

The description implies clear usage: use this tool whenever you need to convert between HEX and RGB colors. It doesn't explicitly mention alternatives or when-not-to-use, but the context is unambiguous given the sibling list contains no other color-related tools, so a score of 4 is appropriate.

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