glass_click_element

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

No annotations present, so description carries full burden. It discloses clicking center of bounds, normal click path, automatic popover routing, and behavior of the return parameter. However, it does not specify default return or whether the tool waits for click completion.

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?

Description is concise and well-structured. The main action is front-loaded, followed by important details and parameter explanations. Every sentence adds value without unnecessary verbosity.

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 the absence of output schema, the description adequately covers parameters and behavioral nuances. It explains return parameter outcomes but does not specify the default return value (likely none). Still sufficient for correct usage.

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 coverage is 100%, baseline 3. Description adds meaning beyond schema: explains id validity and popover routing, and details the return parameter modes ('snapshot', 'settle', 'none'). Provides helpful usage guidance for parameters.

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 tool clicks an element by its #id from glass_a11y_snapshot, specifying the verb 'click' and the resource 'element by id'. It distinguishes from siblings like glass_click and glass_gesture through the explicit reference to snapshot ids.

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?

Provides clear context for use: after glass_a11y_snapshot, re-run snapshot if UI changed, and automatic popover routing. Missing explicit when-not or alternatives, but the context is sufficient for an experienced user.

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