cloak_debug_tab

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

With no annotations, the description carries the transparency burden. It discloses the CDP attach mechanism and clarifies that no second browser process is started. However, it does not describe prerequisites (e.g., active session), error behavior, or potential side effects beyond opening a tab.

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 two short sentences, front-loaded with the core action and a clarifying caveat. No redundant information.

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?

For a simple tool with one parameter and no output schema, the description covers the purpose, mechanism, and a key behavioral nuance. It could be more explicit about prerequisites or error cases, but it is reasonably complete given the tool's low complexity.

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 implies the url parameter is the address to open, and the 'HTTPS' qualifier suggests a constraint, but it does not explicitly describe the parameter's format, allowed schemes, or required conditions.

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 action (open another HTTPS tab), the target context (active Cloak debug session), and the method (local CDP attach). It also distinguishes from siblings by noting it does not start a second browser process, clarifying its role relative to cloak_debug_open.

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 implies the tool is used within an active Cloak debug session, giving some context for when to use it. However, it does not explicitly mention alternatives or exclusions, and the note about not starting a second browser process only hints at a distinction without naming alternatives.

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