cst_impedance_smith_transform

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

With no annotations, the description discloses that computation is pure Python (no simulation), lists return values, and enumerates allowed operations. However, it does not describe behavior for invalid inputs or boundary conditions, which would be beneficial for agent decision-making.

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 concise sentences with no filler. The most critical information (purpose, operations, returns, computation type) is front-loaded. Every sentence earns its place.

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 no output schema, the description adequately lists return types. For a transform tool with moderate complexity (6 params, 5 required), the core functionality is covered. Missing are examples or details on parameter relationships, but it remains sufficient for most uses.

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?

Schema coverage is 100%, so baseline is 3. The description adds value by specifying units for component values (L in nH, C in pF, electrical length in degrees) and clarifies that value depends on operation type, which goes beyond the schema's generic descriptions.

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?

Clearly states the tool applies reactive element transformations on a Smith chart, lists specific operations (series L/C, shunt L/C, transmission line), and specifies outputs (transformed impedance, reflection coefficient, VSWR). This distinguishes it from sibling tools like impedance analysis or stub matching.

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 (e.g., cst_matching_* tools). No prerequisites, limitations, or exclusions are mentioned, leaving the agent to infer appropriate context.

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