browser_press

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

No annotations are present, so the description must carry the full burden. It discloses the outcome (fresh snapshot) but does not mention possible side effects of key presses, whether a page must already be open, or the full range of accepted keys beyond three examples.

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 and uses an arrow to clearly indicate the result. There is no wasted wording.

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 simple one-parameter tool with no output schema, the description covers the core action, example values, and expected result. However, the lack of parameter enumeration and usage differentiation leaves gaps that could hinder correct invocation within the broader browser tool family.

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 input schema has one 'key' parameter with 0% description coverage. The description compensates partially by providing example values (Enter, Tab, Escape) that map to the parameter, but it does not specify the complete set of accepted keys, case sensitivity, or aliases.

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 action ('Press') and resource ('page-level key') with example keys and a clear outcome ('fresh snapshot'). It distinguishes this tool from siblings like browser_click and browser_type by focusing on keyboard key presses at page level.

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 for pressing page-level keys but provides no explicit when-to-use guidance or exclusions. It does not mention alternatives like browser_click or browser_type, leaving the agent to infer selection among the large sibling set.

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