chrome_fill_form

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

No annotations are provided, and the description fails to disclose behavioral traits such as whether the tool waits for form readiness, triggers validation, or requires the form to be present. Minimal information on side effects or prerequisites.

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?

While the description is a single short sentence, it is under-specified and omits critical information (e.g., how to provide field-value pairs). True conciseness requires including all essential details without verbosity, which is not achieved here.

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?

With no parameters and no output schema, the description carries the full burden of explaining the tool's operation. It fails to describe how the form fields are specified, making the tool essentially unusable for an AI agent without additional context.

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 0 parameters, and the description does not explain how the fields or values are specified. Despite 100% schema coverage, the description adds no meaning beyond the empty schema, leaving the agent confused about how to invoke the tool.

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 verb 'fills', the resource 'multiple form fields', and the location 'current Google Chrome tab'. It distinguishes from sibling tools like 'chrome_type' which fills a single field.

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 use when filling many fields quickly, but provides no explicit guidance on when to use this tool versus alternatives like 'chrome_type' or 'chrome_click'. No when-not or alternative references.

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