Build circuit from netlist

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

Beyond annotations (non-readonly, openWorld, non-idempotent, non-destructive), the description discloses that this is a multi-step workflow rather than a single operation, which suggests non-atomic behavior. The recovery caveat ('Prefer primitives when you need to recover') adds useful operational context. It does not spell out failure modes or what happens to existing circuits when start_new is true.

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 core behavior is front-loaded in the first sentence and the prose is efficient. The args list and example are useful for a tool with six parameters, though the args list duplicates some schema properties. Overall, every section earns its place without excessive verbiage.

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?

The tool is complex and has no output schema, so the description carries a responsibility to explain invocation and expected outcome. It covers invocation well with args and example, but it does not state what the tool returns (e.g., succcess message, errors, circuit state) or describe partial-failure outcomes beyond implying recovery is hard. That leaves a meaningful gap.

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?

With only 33% schema description coverage, the description should compensate, and it partially does by restating the args and providing a concrete components/wires example. However, it does not explain some parameters (e.g., title) or deeply describe attributes, coordinates, or return behavior. The wire format 'ref.pin (example: uno.D13 -> led1.anode)' mirrors the schema rather than adding new meaning.

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, multi-verb statement of what the tool does: 'Place components, set attributes, wire pins, and optionally write Arduino code in one call.' This clearly identifies the resource (a circuit) and action (building/editing it). It also distinguishes itself from sibling primitives by defining itself as a 'convenience workflow over the primitive tools'.

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?

Gives explicit when-not/alternative guidance: 'Prefer primitives when you need to recover from a single failed step.' This tells an agent that for granular recovery, the lower-level sibling tools are better, while implying this tool is for bulk, one-shot construction. It does not enumerate which primitives or specify all use cases, so it is not a full 5.

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