add_dimension

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

No annotations provided; description mentions 'current drawing' but fails to disclose prerequisites (e.g., active drawing view), side effects, or whether it can overwrite existing dimensions. Adequate but lacks depth.

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?

Three efficient sentences with no fluff. Action verb first, examples immediately, purpose in last sentence. Front-loaded and scannable.

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?

Output schema exists, so return value explanation is unnecessary. Description covers purpose and types, but lacks prerequisites (e.g., active drawing view needed) and coordinate system context. Minor gaps.

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?

Input schema has 100% coverage with descriptions for all parameters. The description adds no new semantic value beyond listing dimension types, which are already in the schema. Baseline score applies.

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 'Add a dimension to the current drawing' with specific verb and resource, and lists types (linear, radial, angular, diameter), distinguishing it from sibling tools like auto_dimension_view or add_annotation.

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 for adding dimensions to drawings but does not explicitly state when to use versus alternatives (e.g., auto_dimension_view for automated placement, set_dimension for modifying existing). No exclusions or context provided.

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