convert_hex_to_rgb

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

Description claims a pure conversion operation, but annotations set readOnlyHint to false, implying possible side effects. This is a direct contradiction. No additional behavioral disclosure is provided.

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?

Single sentence, minimal and to the point, no unnecessary words. Earns its place.

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?

Tool is simple but description lacks return format details (e.g., RGB as object or string). Combined with annotation contradiction, the description is incomplete.

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?

Input schema already provides full description of the 'hex' parameter (including examples). Description adds no new semantic meaning; baseline score of 3 is appropriate.

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?

Description clearly states 'Convert HEX color to RGB', using specific verb and resource. It unambiguously distinguishes from sibling tool 'convert_rgb_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 explicit guidance on when to use this tool vs alternatives. The purpose is clear but lacks exclusion or context for sibling conversion tools.

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