set_active_layer

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

With no annotations provided, the description carries full burden for behavioral transparency. The single sentence fails to disclose what happens when the layer does not exist, whether the change is reversible, or if any side effects occur. This is critically inadequate.

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?

Extremely brief but at the expense of informativeness. A single sentence is concise but lacks necessary detail, making it under-specification rather than efficient structure.

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 single parameter and no annotations or output schema, the description is woefully incomplete. It does not explain the concept of an active layer, its importance, or implications for subsequent operations.

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 input schema already describes the parameter 'layerName' with a clear description. Since schema coverage is 100%, the tool description adds no additional meaning. Score is at baseline 3 as per rubric.

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 'Set the active layer' is a clear verb-resource pair but merely restates the tool name, providing no differentiation from sibling layer tools like 'create_layer' or 'list_layers'. It lacks scope or context to distinguish its unique function.

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 is given on when to use this tool versus alternatives. There is no mention of prerequisites, caveats, or scenarios where a different tool would be preferable, leaving the AI agent without decision support.

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