subscribe_to_event

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

No annotations are provided, so the description must carry full behavioral disclosure. The description only mentions 'subscribe to receive proactive notifications' but does not explain how the subscription works (e.g., persistence, unsubscribe mechanism, or what 'proactive notifications' entail).

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 sentence that directly conveys the core functionality. It is concise and front-loaded with the key action and event type. However, it could include additional structure (e.g., a note about usage).

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 low complexity (one parameter, no output schema), the description is adequate but could be more complete by mentioning the subscription lifecycle or how to stop it. The lack of behavioral details reduces completeness.

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 already provides a clear description for the single parameter 'eventName', including examples. Schema coverage is 100%, so baseline is 3. The description adds no extra parameter information.

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 clearly states the action ('subscribe to a Firebird event') and specifies the event type (POST_EVENT) and outcome ('receive proactive notifications'). It distinguishes the tool's purpose from, say, listing events, but does not explicitly compare to siblings.

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 explicit guidance on when to use this tool versus alternatives. The context implies it's for subscribing to events to get notifications, but lacks instructions on preconditions or alternatives like 'list-available-events'.

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