etabs_save_model

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

Annotations already declare the mutation profile (readOnlyHint=false, destructiveHint=false, idempotentHint=false), so the safety picture is covered. The description usefully adds the prerequisite semantics (path needed for untitled models, save required before analysis), but says nothing about overwrite behavior for an existing path, which is the main remaining behavioral unknown.

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 short sentences with zero filler, purpose front-loaded and the two prerequisite facts following in priority order. Nothing could be cut without losing information.

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 one-parameter tool with full schema coverage, an output schema, and annotations, the description covers purpose and prerequisites adequately. The only meaningful gap is any disclosure of overwrite/side-effect behavior, which is minor given the annotation set.

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% and the schema itself documents that omitting path saves to the current file. The description's note that a new untitled model needs a path adds complementary meaning, but it is a thin addition over an already well-documented single parameter, so the 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?

"Save the model" states a specific verb and resource, and the verb naturally separates it from siblings like etabs_open_model and etabs_new_model. It stops short of explicitly naming those siblings or clarifying what 'save' writes over, so it lands just below the top tier.

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 real conditional context: a new untitled model requires a path, and analysis requires a saved model. That tells the agent when this call is a prerequisite, though it offers no guidance on alternatives such as export/checkpoint or on what happens when overwriting an existing file.

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