set_palette_color

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

The description adds the behavioral detail that all pixels using the index update visually, which is useful. However, with no annotations provided, it omits other important aspects like whether the operation requires specific permissions, is destructive, or what happens if the index does not exist.

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 two sentences long, front-loaded with the primary action, and contains no redundant information. Every word contributes to clarity.

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?

Given the tool has no output schema and no annotations, the description should cover return behavior and failure scenarios. It mentions the visual update but not whether the tool returns a success indicator or what happens if the palette entry or document is invalid. This leaves some gaps for the agent.

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 60%, with 'hex' and 'name' lacking descriptions. The description clarifies 'color (and optionally name)', adding meaning to these parameters. However, it does not specify format restrictions (e.g., hex format) or interaction between parameters, so the improvement over schema is modest.

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 changes the color and optionally name of a palette entry, with a specific verb and resource. It does not explicitly distinguish from sibling tools like 'adjust_palette_color' or 'replace_color', but the focus on 'palette entry' and 'index' makes the purpose unambiguous.

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 vs alternatives such as 'add_palette_color' or 'adjust_palette_color'. No prerequisites or when-not-to-use conditions are provided, leaving the agent to infer context.

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