set_color_mode

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

With no annotations provided, the description must fully disclose behavioral traits. It only states the conversion action and dithering options, but fails to mention whether the sprite is modified in-place, if the operation is reversible, any prerequisites (e.g., existing palette for indexed mode), or what happens to existing layers and frames. This is insufficient for a mutation tool.

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 extremely concise with two short sentences. The primary action is front-loaded, and every word adds value. No redundant information.

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 moderate complexity (3 parameters, no output schema), the description covers the core conversion action and dithering details but omits any mention of the required filename parameter, behavioral side effects, error conditions, or return value. It is functional but not 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?

The schema has 0% description coverage, so the description must compensate. It adds meaning for 'color_mode' by listing valid values and for 'dithering' by specifying options for indexed conversion. However, it does not mention the required 'filename' parameter, leaving a significant gap.

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 uses the specific verb 'Convert' and identifies the resource as 'a sprite between colour modes', listing the valid modes 'rgb', 'indexed', 'gray'. This clearly differentiates from sibling tools like export or palette manipulation tools.

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 usage when changing a sprite's color mode, but it does not provide explicit guidance on when to use this tool versus alternatives (e.g., desaturate or adjust_hue_saturation) or state when not to use it. The dithering options are mentioned only for indexed mode.

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