get_virtual_cam_status

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

With no annotations, the description carries the full burden for behavioral transparency. It offers only the output statement and does not explicitly disclose that this is a read-only operation, nor does it mention any potential side effects, error conditions, or prerequisites. For a simple getter, the risk is low, but the description still lacks explicit behavioral disclosure.

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, succinct phrase that directly states what the tool reports. It is front-loaded, contains no filler, and every word earns its place. Perfect conciseness for a zero-parameter status getter.

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, the description is adequate but minimal. It indicates the output concept ('whether active') but does not explicitly specify the return type (boolean) or field names. In the absence of an output schema, slightly more detail could have made it fully self-contained. However, for a straightforward status check, the coverage is sufficient.

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 tool has zero parameters, so the input schema already covers everything. The description does not need to explain parameters, and the baseline of 4 is appropriate. No additional semantic value is required.

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 'Whether the virtual camera output is active' clearly conveys that this tool reports the virtual camera status. It uniquely targets the virtual camera resource, distinguishing it from sibling status tools like get_stream_status and get_record_status. It could be stronger with an explicit verb, but the purpose is unambiguous.

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 no guidance on when to use this tool versus alternatives. It does not mention that this should be used to check status before/after start/stop_virtual_cam, nor does it contrast with other status getters. Lack of any context or exclusion means no guidance is offered.

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