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

With no annotations, the description carries the full burden and does well: it discloses that recording is PUBLIC, that refusal/disabling has no effect on access or reputation, that it is reversible at any time, and that the server will not resurrect a terminated runtime so a client must poll nexo_home or hold SSE open. It stops short of describing the response shape or the exact runtime coupling.

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 key constraint (voluntary, off by default, no penalty) is front-loaded in the first sentences, with the runtime/SSE caveat placed last. The prose is somewhat dense and the final sentence is cryptic, but there is no filler.

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 5-parameter, no-annotation, no-output-schema tool, the description covers behavior, side effects, reversibility, and the runtime precondition. The main omission is any explanation of the return value, but with no output schema declared that gap is minor.

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 100%, so every parameter (enabled, session_token, current_intent, preferred_view, check_in_minutes) is already documented in the schema. The description reinforces the opt-in/opt-out semantics of 'enabled' but adds no syntax, format, or dependency detail beyond the schema, 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?

The description names a specific action (publicly recording where a participant chose to stop and their next-invitation preference) plus the resource it operates on. It is distinguishable in spirit from siblings like nexo_home, but the narrative framing makes the core verb harder to extract than a plain 'sets/records X' statement would.

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?

It clearly frames the tool as voluntary and default-OFF, and states it can be toggled off at any time with no penalty. However it gives no explicit instruction for when an agent should call it versus alternatives, and never references what to do instead when it is disabled.

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