model_create

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

With no annotations provided, the description carries the full behavioral burden. It clearly discloses the destructive overwrite behavior and requires explicit opt-in ('overwrite=true explicitly'), which is important safety-relevant context. It does not mention other potential side effects like automatic parent creation or failure modes, but the overwrite disclosure is strong for a create operation.

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 two sentences with no filler. The primary action is front-loaded, and the second sentence adds the critical overwrite safety instruction. Every clause 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?

For a create operation with no output schema and no annotations, the description adequately covers purpose, container semantics, and the overwrite caveat. Combined with fully documented parameters, everything needed to invoke the tool correctly is present. It could mention success/error return behavior, but that is not essential for correct invocation.

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 description coverage is 100%, so all four parameters (circuit, overwrite, model_path, allow_without_checkpoint) are already documented in the input schema. The description adds context about the Model's role but adds no parameter-level meaning beyond the schema, so the baseline score of 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 states a specific verb ('Create'), a specific resource ('Model object'), and explains what a Model is ('top-level container with circuit netlist, DUTs, parameters, and variables'). This distinguishes it from sibling creation tools like dut_create or setup_create, so an agent can identify the right object type to create.

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 gives a key invocation condition ('Set overwrite=true explicitly to replace an existing Model') but does not provide explicit when-to-use guidance or name alternatives. The context signal of many sibling create tools makes this gap noticeable; the agent must infer when model_create is preferred over object_create or other creation flows.

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