browser_execute_js

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

The description reveals behavioral traits like DOM change monitoring and CDP support, but lacks details on security, error handling, or state modifications. Since no annotations are present, the description carries full burden and provides moderate value.

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 short and well-structured with a clear one-line summary followed by bulleted arguments. Every sentence adds value without 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 the tool's complexity and the existence of an output schema, the description covers core functionality (execution, result capture, DOM monitoring) but omits constraints (page load requirement) and security considerations, leaving room for improvement.

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 the script parameter (JavaScript or CDP JSON), switch_tab_id, and no_monitor flags. However, details like tab ID format or CDP command syntax are missing.

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 executes JavaScript in the browser and captures results and DOM changes. This distinguishes it from sibling tools like browser_navigate or browser_screenshot which perform different actions.

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?

No guidance on when to use this tool versus alternatives (e.g., browser_batch for multiple actions). No when-not-to-use instructions.

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