computer_type

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

With no annotations, the description must disclose behavior. It only mentions 'high caution' without explaining what that entails (e.g., potential for destructive actions, need for confirmation). No mention of side effects or required system state.

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 extremely concise but arguably too brief for the complexity of a 4-parameter tool. It wastes no words but sacrifices informativeness.

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 4 parameters, no output schema, and no annotations, the description is insufficient. It lacks details on how the typing works, what the parameters mean in context, and safety precautions beyond a generic warning.

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 low (25%); the description does not explain parameters beyond the schema. It adds no meaning to 'text', 'url', 'tabId', or the purpose of 'confirmed' despite the schema providing a basic description for the latter.

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 phrase 'Type via OS keyboard' clearly indicates the tool performs keyboard typing, distinguishing it from sibling tools like computer_click and browser_wait_for. The 'high caution' adds a safety note.

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?

No guidance on when to use this tool versus alternatives. The 'high caution' hint is vague and does not specify prerequisites or conditions for use.

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