create_group_layout

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

With no annotations provided, the description carries the full burden of behavioral disclosure but only states the basic action. It doesn't mention whether this is a write operation (implied by 'create'), what permissions might be required, whether the creation is reversible, what happens on failure, or any rate limits. For a creation tool with zero annotation coverage, this represents significant gaps in behavioral context.

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 just one short sentence. While this represents efficient communication, it borders on under-specification rather than optimal conciseness. The single sentence is front-loaded with the core action but lacks supporting context that would be helpful for tool selection.

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?

For a creation tool with 5 parameters, no annotations, and no output schema, the description is insufficiently complete. It doesn't explain what a 'group element' is, what system it creates it in, what the expected outcome looks like, or how this differs from other layout tools. The agent would need to infer too much from the minimal description.

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 description provides no parameter information, but the schema has 100% description coverage with clear Japanese descriptions for all 5 parameters. The baseline score of 3 is appropriate since the schema does the heavy lifting of documenting parameters, though the description adds no additional semantic context beyond what's already in the structured schema.

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 tool 'creates a group element' which provides a basic verb+resource combination, but it's vague about what exactly a 'group element' is in this context. It doesn't distinguish this tool from similar sibling tools like 'create_form_layout' or 'create_table_layout', leaving ambiguity about what type of layout element is being created.

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 provides no guidance on when to use this tool versus alternatives. With multiple layout-related sibling tools (create_form_layout, create_table_layout, add_layout_element), there's no indication of what distinguishes this group layout creation from other layout operations or when it would be the appropriate choice.

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