set_layout

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

With no annotations provided, the description carries the full burden. It does not disclose behavioral traits such as whether setting the layout is destructive, requires specific permissions, or affects other components. The description is 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 very concise (one sentence) and front-loads the purpose. However, it could be improved by briefly explaining what the dict keys mean or the effect on the window pane.

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 absence of an output schema and the simplicity of the tool (single parameter), the description provides adequate context for usage. However, it lacks information on return values or error conditions, which is acceptable for a setter but could be more complete.

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 only defines 'layout' as an object with additionalProperties: true, providing no semantic clues. The description adds critical meaning: 'layout must be a ST layout dict with cols, rows, cells keys.', which significantly helps the agent understand the expected structure.

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 clearly states the tool's purpose: 'Set the window pane layout.' It specifies the required structure (ST layout dict with cols, rows, cells keys), but does not explicitly differentiate it from sibling tools like 'get_layout', which is its counterpart.

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 on when to use this tool versus alternatives. It only describes what the tool does and the required format, without mentioning prerequisites or situations where this tool is appropriate.

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