oc_devtools_url

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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true. The description adds 'Returns a URL you can paste into any local browser,' confirming it's a read-only operation. It does not disclose potential errors or limitations (e.g., requiring an active worker), but the annotations cover the safety profile adequately.

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 three sentences, each serving a clear purpose: purpose, return value, and parameter guidance. No wasted words, front-loaded with the main action. Ideal conciseness.

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 simplicity (no required params, no output schema), the description covers all essential aspects: what it gets, what it returns, and how to specify parameters. The output URL type is explained, and annotations cover safety. No gaps for an agent to make mistakes.

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 100%, so parameters are already documented. The description restates parameter intent: 'Use targetId to select a specific open tab, or workerId to select a specific worker's current page.' This adds little beyond the schema, so baseline 3 is appropriate.

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 'Get the Chrome DevTools inspector URL for the current worker's active page.' This specifies the verb (Get), resource (DevTools inspector URL), and context (current worker's active page), making it distinct from sibling tools like 'inspect' or 'oc_observe'.

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 provides guidance on choosing between targetId and workerId: 'Use targetId to select a specific open tab, or workerId to select a specific worker's current page.' However, it does not mention when to use this tool over alternatives (e.g., 'inspect' or browser DevTools), so usage guidance is minimal.

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