enable_guest_mode

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It reveals that the tool 'auto-wakes if asleep', which is a useful behavioral trait. However, it omits other important aspects like authentication needs, failure conditions, or what happens if the vehicle is unresponsive.

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 a single, concise sentence that front-loads the action and includes a key behavioral aspect. It contains no filler or redundant content, making it highly scannable for an agent.

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?

This is a simple command tool with no output schema and no annotations. The description sufficiently states the purpose and one behavior, but it lacks details about return values, prerequisites, or error handling. The sibling tools provide some context, but explicit usage guidance is missing.

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?

The input schema provides complete descriptions for all three parameters (vin, max_attempts, wait_for_completion), giving 100% schema coverage. The tool description adds no parameter-specific detail, so the schema does the heavy lifting and the baseline score of 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 uses the specific verb 'Enables' with the resource 'Guest Mode', clearly differentiating it from sibling tools like 'disable_guest_mode'. The added detail 'auto-wakes if asleep' further clarifies the tool's behavior.

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?

There is no explicit guidance on when to use this tool versus alternatives such as 'enable_valet_mode' or 'disable_guest_mode'. The description only states what it does, leaving the decision entirely to the agent without any contextual hints.

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