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

Annotations already declare it non-read-only, idempotent, open-world, and non-destructive, but the description adds genuinely non-obvious state semantics: checkpoints remain armed and a worker pressing one can re-engage you. That state-transition detail is exactly what an agent needs beyond the annotations, though permissions and return behavior are unaddressed.

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?

Two tight sentences, zero waste, and the primary effect is front-loaded ahead of the secondary checkpoint nuance.

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 one-parameter mode toggle with no output schema and full annotation coverage, the description conveys the essential outcome and reversibility path. Only minor gaps remain (e.g., whether the task itself persists or any response semantics), which are not critical.

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 100% and task_id is documented in the schema as 'The interactive task.' The description adds no extra meaning about the parameter, so the baseline 3 applies.

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?

States a specific verb and resource ('Turn live mode off') plus the concrete effect: the worker's camera stops and no more frames arrive. This clearly distinguishes it from sibling start_interactive without needing to open either schema.

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?

Usage is only implied by the effect ('turn live mode off'); there is no explicit statement of when to choose this over siblings like start_interactive, cancel_task, or await_interactive_events, and no exclusions or prerequisites are given.

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