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

Description indicates mutation (reading 'choose'), consistent with readOnlyHint=false. However, it does not disclose additional behavioral details like waiting for element or error handling, though annotations already imply mutation.

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?

Single sentence, front-loaded with domain identifier, no extraneous information. Every word serves a purpose.

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?

Covers basic purpose and selection methods, but lacks details like CSS selector usage or behavior when option is missing. Adequate for a simple tool given sibling 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?

With 0% schema description coverage, the description partially compensates by explaining that label and value are selection criteria. However, the selector parameter is not described, leaving ambiguity for required parameter.

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?

Description clearly states the tool selects an option from a <select> element, specifying two methods: by value or visible label. It is distinct from sibling Playwright tools like click or fill_form.

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 when interacting with a <select> element but provides no explicit comparison to alternatives like fill_form or type_text. No when-not-to-use guidance.

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