cloak_debug_open

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

With no annotations provided, the description carries the full burden. It discloses that the session is headed, requires an allowlisted profile, and uses a Free-plan browser session. However, it omits side effects, error behavior, or authorization requirements, leaving the agent uncertain about prerequisites and potential failures.

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 sentences, front-loaded with the purpose and immediately followed by a key limitation and alternative. Every word contributes meaningful information 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?

The tool has no output schema and no annotations, so the description must explain return values and operational context. It does not mention what the session returns (e.g., URL, ID), how to close it, or the need for prior authentication. The context is incomplete for an agent to invoke and use the tool effectively.

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 only 33% (only 'url' is described). The description does not mention 'port' or 'profile_id' at all, nor does it elaborate on the 'url' behavior beyond the schema. Since the description fails to compensate for the low schema coverage, parameter semantics remain unclear.

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 one headed CloakBrowser debug session' with a specific resource (debug session) and scope ('for an allowlisted profile'). It differentiates from sibling tools by noting 'Uses a single Free-plan browser session' and explicitly pointing to cloak_debug_tab for opening more sites.

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 gives clear usage context: it opens a single Free-plan session and directs the agent to use cloak_debug_tab for additional sites. However, it does not explicitly state when to avoid this tool or mention prerequisites like authentication, relying on sibling names to imply the workflow.

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