execute_action_tool

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

With no annotations, the description itself must cover behavior. It mentions 'single interaction,' scouting, and parameter roles, but does not disclose potential side effects (e.g., page navigation, state changes) or error handling. Adequate but not comprehensive.

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 concise and well-structured: a one-sentence purpose, a crucial usage tip, then a bulleted argument list. Every sentence adds value with no redundancy.

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 6 parameters, no output schema, and no annotations, the description covers parameter usage and required conditions well. It lacks return value or error details, but for an action tool, the outcome is observable via scout. Slightly incomplete but acceptable.

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 0%, so the description fully compensates. It explains each parameter: session_id, action enum, selector requirement, value meanings, frame_context, and wait_after default. This adds critical meaning beyond the schema.

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 'Perform a single interaction in the live browser session' and lists supported actions (click, type, select, navigate, scroll, wait, etc.), distinguishing it from sibling tools like `scout_page_tool` or `execute_javascript`.

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 advises 'Always scout after executing an action to observe the result,' providing explicit post-action guidance. It implies when to use (single interactions) but does not explicitly contrast with alternatives like `fill_secret` or `execute_javascript`.

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