execute_script

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

Describes execution as synchronous and in page context, but with no annotations provided, the description should disclose side effects, blocking behavior, security implications, and return value characteristics. It falls short of full transparency.

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 is concise and front-loaded with the key action. However, it may be excessively concise given the tool's complexity, sacrificing necessary detail.

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?

Without annotations, output schema, or parameter descriptions, the minimal description leaves significant gaps about return values, error handling, scope, and permissible scripts. Incomplete for a tool with two parameters.

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% and the description does not explain the purpose of 'script' or 'args' beyond what is inferable from names. An agent cannot understand how to correctly use parameters from this description alone.

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?

Clearly states the verb 'Execute' and the resource 'synchronous JavaScript in the current page context'. It distinguishes from sibling tools that handle element interactions, navigation, etc., but could be more explicit about being arbitrary JavaScript execution.

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 other tools (e.g., for direct DOM manipulation vs. element-specific actions). Lacks any when-not-to-use or prerequisite context.

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