autocad_create_circle

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

Annotations already declare the safety profile (readOnlyHint=false, destructiveHint=false, idempotentHint=false, openWorldHint=false), so the description does not need to restate that. It adds the return JSON shape and the radius>0 constraint, but omits any note about draw-order effects, layer auto-creation, or side effects beyond what the schema states.

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?

Front-loaded with the one-line purpose, then structured Args/Returns sections. Efficient and scannable with minimal waste, though the Args block duplicates field documentation that also lives in the schema.

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?

With an output schema present the return shape is covered, and the description still echoes it for convenience. Combined with annotations covering safety, an agent has what it needs to call this simple one-parameter tool correctly.

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?

Top-level schema description coverage is reported as 0% (only the sole 'params' object is a parameter), so the description compensates by enumerating center, radius, and layer semantics. However, these largely restate the nested schema descriptions rather than adding new meaning like coordinate system or units nuance.

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 opens with a specific verb+resource ("Draw a circle"), which naturally distinguishes it from siblings like autocad_create_arc, autocad_create_line, and autocad_create_polyline. It is clear but does not explicitly name or contrast with any sibling tool.

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?

There is no when-to-use guidance, no prerequisites, and no mention of alternatives such as autocad_create_boundary or arc tools. The agent is left to infer everything about tool selection from the name.

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