browser_keyboard_insert_text

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

With no annotations, the description carries the full burden. It discloses one important behavioral trait (no keyboard events), which adds value beyond the name. However, it does not mention other effects such as whether existing text is replaced, whether focus is required, or what events (if any) are triggered.

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 is front-loaded with the core action and key differentiator. No wasted words.

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 simple, but the description lacks usage context, return value, and details about its effect beyond 'insert'. Without annotations or an output schema, the agent may not know how to correctly invoke it (e.g., whether focus is needed, whether it appends or replaces). The differentiator is useful, but overall incomplete for a browser automation tool.

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 0%, and the description does not add any meaning beyond the parameter name 'text' and its string type. The text to insert is obvious, but no extra semantics are provided (e.g., format, length limits, encoding).

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 clearly states the action (insert text) and adds a key differentiator: it does not trigger keyboard events. This distinguishes it from sibling tools like browser_type or browser_fill, though it could be more explicit about the target element (e.g., focused element).

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 provides no explicit guidance on when to use this tool versus alternatives. It mentions the 'no keyboard events' feature but does not state use cases, prerequisites, or when to prefer it over browser_type, browser_fill, or other input methods.

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