run_safari_javascript

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

With no annotations, the description should detail behavioral traits. It mentions returning a result or error, but omits security implications, permissions required, or that the code runs in the page context. This is inadequate for a potentially dangerous mutation tool.

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 very concise with a single clear sentence and brief Args/Returns sections. However, it sacrifices necessary detail for brevity, which reduces effectiveness.

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 (arbitrary code execution), the description lacks critical context about security, permissions, and environment. Even with an output schema, the missing details make it incomplete for safe and proper use.

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 must compensate. It merely restates the parameter name and type ('JavaScript code to execute') without adding syntax, limitations, or encoding details, adding almost no value 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 the tool executes JavaScript in the current Safari tab and returns results, distinguishing it from other Safari tools like navigation or tab listing. However, it doesn't emphasize the 'current tab' aspect explicitly which is important for clarity.

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 is provided on when to use this tool versus alternatives, prerequisites, or contexts where execution might fail. This leaves the agent without needed context for decision-making.

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