fill

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

The description discloses key behaviors: deterministic, no network call, shape constraints (e.g., do not repeat first point for freeform). It also explains differences between stadium and rectangle with cornerRadius, and between polygon and freeform. Missing details on error handling or output format.

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 sentence that covers a lot of information, which is concise. However, it could benefit from better structure (e.g., bullet points) to improve readability given the complexity.

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 complexity (7 parameters, nested shapes) and no output schema, the description lacks information about return values or file format. The schema provides good internal descriptions, but the description could offer more guidance on integrating with sibling tools.

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 main description adds minimal parameter semantics beyond the already rich schema descriptions. The schema covers most parameters with detailed explanations (e.g., stadium vs rectangle, freeform usage). The description's contribution is marginal, so baseline 3 is appropriate.

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 generates a solid plug to fill holes/cavities, lists all supported shapes (circular, rectangular, stadium, polygon, freeform), and specifies it's deterministic CadQuery without network calls. This sufficiently distinguishes it from sibling tools like caps and meshes.

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 implies usage contexts by stating it takes structured JSON (no image) and is deterministic. However, it does not explicitly state when to use this tool over siblings or when not to use it, though the sibling tool names give some differentiation.

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