Enable or disable face-priority autofocus to maintain sharp focus on people in view, ideal for video calls and streaming.
Enable or disable face-priority autofocus.
| Name | Required | Description | Default |
|---|---|---|---|
| camera | No | ||
| enabled | Yes |
Changes observed during successful MCP inspections.
v0.6.2Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations are absent, so description carries full burden. It fails to disclose behavioral traits like toggling behavior, effects on other settings, or state requirements.
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?
Single sentence is concise but lacks structure or additional context. It is front-loaded but too sparse.
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?
No output schema and no description of return values or side effects. For a boolean toggle, missing information about toggling behavior and camera parameter.
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 0% and description does not explain the 'camera' parameter (optional string). The 'enabled' parameter is self-explanatory, but the undocumented parameter is a gap.
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?
Description clearly states the verb (enable/disable) and resource (face-priority autofocus), distinguishing it from siblings like obsbot_focus_manual.
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?
No guidance on when to use this tool vs alternatives (e.g., manual focus). No context on prerequisites or typical use cases.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.