simscale_press

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

The description adds the useful constraint that the target must be 'unique visible', which is additional context beyond the annotations. However, it does not disclose potential side effects of the key press (e.g., form submission, navigation, or state changes) or how failures are handled (e.g., when no unique match exists), leaving some ambiguity for a non-read-only action.

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 a single, concise sentence that front-loads the action verb, includes relevant examples, and states constraints without any redundant phrasing. It is easy to read and understand.

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 the small parameter count and existing annotations, the description adequately conveys the core purpose and constraints. However, it omits details about return values or success/failure behavior, and the lack of an output schema makes this omission more noticeable. The description is sufficient for basic use but could be stronger by noting what happens after the press.

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?

The schema already describes the 'target' object as a stable, visible UI target with preferred selectors, so the description adds limited value there. For the 'key' parameter, the description provides helpful examples ('Enter or Escape') that clarify expected values, but it does not specify key format or modifiers. Overall, the added meaning is moderate, balancing the partial schema coverage.

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 uses the specific verb 'Press' with a clear object (a keyboard key on a SimScale control) and provides examples like Enter or Escape, making the action unambiguous. It also distinguishes this tool from sibling interaction tools such as simscale_click and simscale_fill by focusing solely on key presses.

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 whenever a keyboard interaction is needed, but it does not explicitly state when to prefer this tool over alternatives like clicking or filling, nor does it mention exclusions such as when a control is not visible or unique. The guidance is inferred from the action itself rather than clearly articulated.

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