click

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

With no annotations, the description carries the behavioral burden and does well by disclosing that it waits for the app to settle and that hidden tabs/closed panels are opened first. This goes beyond a bare 'click' statement. It still does not describe failure or timeout behavior, but the core interaction traits are clearly surfaced.

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?

Two tightly written sentences with no filler. The core action is front-loaded, and the secondary behavior about tabs/panels is added only after the primary action, making the structure easy to parse.

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 click interaction, the description covers the operation, post-click waiting, and automatic navigation to hidden targets. It falls slightly short only in not defining the role of app_id or what happens on timeout/failure, but the description is largely sufficient for invoking the tool correctly.

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%, so the description must compensate, but it only clarifies 'id' as the element id. 'app_id' is never mentioned, and 'timeout_s' is only indirectly tied to 'wait for the app to settle'. Self-explanatory titles help, but the description does not carry enough parameter meaning.

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 verb and resource: 'Click the element with this id (usually an action button)'. It also clarifies the intended target class and the post-click behavior, making it clearly distinct from sibling tools like list_controls, set_inputs, or read_outputs.

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 when to use the tool: to click an action button by id, and it usefully notes that tabs/panels are opened automatically. However, it does not explicitly state when not to use it or name alternatives, leaving the agent to infer the selection from the sibling list.

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