quantize_to_palette

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

Describes the process: walks cels, replaces opaque pixels using RGB distance. No annotations exist, so description carries full burden; it is honest but omits edge cases like transparent pixels or empty palette.

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?

Two paragraphs: first states purpose, second provides usage context and parameter details. No wasted words, well-structured, front-loaded.

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's simplicity and no output schema, the description covers the main behavior and parameter semantics. Missing return value or error handling, but still adequate.

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 has 0% description coverage, but the description's Args section adds meaning: explains filename required, layer_name empty = all layers, start_frame default 1, end_frame default 0 = last frame. Fully compensates for schema gaps.

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 'Snap every pixel to the nearest color in the sprite's palette,' which is a specific verb and resource. It distinguishes from siblings like apply_palette_preset by noting it should be run after to make art conform.

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?

Explicitly advises to run after apply_palette_preset or set_palette, providing clear context. Lacks explicit when-not-to-use, but the given guidance is sufficient.

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