design_tile_pattern

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

With no annotations at all, the description carries the full burden, and it leaves the important behavioral questions unanswered: whether this mutates or replaces existing tile settings, whether unspecified parameters are reset, whether it is reversible, and whether it errors on a non-tile layer. Only the word 'seamless' hints at any behavioral outcome.

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?

A single front-loaded sentence with the verb, target, and field list in order of importance. Nothing is wasted or buried.

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?

The rich, fully documented 7-parameter schema and the layer-type hint make this minimally sufficient to invoke, and no output schema exists so return values need not be described. Still, for an unannotated mutation tool touching six visual settings, an agent would benefit from knowing the mutation semantics and failure conditions.

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 100%, and every parameter carries ranges, an enum, or format guidance (hex, pixels, degrees), so the schema does the heavy lifting. The description merely restates the parameter names ('tile shape, size, gap, rotation, and colors') without adding semantics such as defaults or how color1/color2 interact with the chosen tile shape.

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?

Specific verb (Configure) plus a clearly scoped resource: seamless tiling on a patterns:tile layer, enumerating the adjustable fields. It is clear what the tool does, though it never distinguishes itself from adjacent siblings such as design_create_pattern, design_update_pattern, or design_tile_region.

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 phrase 'for a patterns:tile layer' implies the prerequisite that the target layer must already be a tile layer, which is useful. However there is no explicit when-to-use guidance, no statement on what to do if the layer is a different type, and no routing to alternatives like design_add_pattern or design_update_pattern.

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