add_null_layer

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

No annotations are provided, so the description carries the full burden. It does not disclose whether adding a null layer is destructive, whether it modifies the composition, or if there are side effects like affecting layer ordering. The description is too minimal.

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 a single, short sentence that gets directly to the point, earning its place with no wasted words. It is appropriately concise.

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 (adding a layer) and lack of output schema, the description could be slightly more complete. It does not explain what a 'null object layer' is or its typical use, nor does it clarify relationships between 'compId' and 'compName'.

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 low at 33%—only 'name' has a description. The tool description adds no extra parameter context, such as what 'compId' or 'compName' refer to or how they determine the target composition, leaving the agent guessing.

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 the verb ('Add') and the resource ('null object layer'), which provides a clear purpose. However, it does not differentiate this tool from siblings like 'add_solid_layer', 'add_text_layer', etc., which have similar structures.

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 lacks any guidance on when to use this tool versus alternatives. With many sibling layer-adding tools, the agent receives no context about null objects' specific use cases (e.g., for parenting or expressions) or when not to use it.

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