event_bus_bus_unsubscribe

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

No annotations are present, so the description carries full burden. It only states the action without revealing behavioral traits such as idempotency, error conditions, or return value. The existence of an output schema is not leveraged to describe what happens after unsubscription.

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 extremely concise, consisting of a single sentence that is front-loaded with the tool's category. It avoids verbosity, but the lack of content prevents a higher score for value-add.

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 simple unsubscription tool with output schema, the description is insufficient. It does not explain expected behavior (e.g., does it throw error if topic/subscriber doesn't exist?), return values, or side effects. The output schema exists but is not referenced.

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 the description adds no meaning to the parameters 'topic' and 'subscriber'. While the names are somewhat self-explanatory, the description fails to clarify required format, constraints, or differences from other tools with similar parameters.

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 'Unsubscribe from a topic' clearly states the action and resource. It uses a specific verb and resource, unambiguously distinguishing it from sibling tools like event_bus_bus_subscribe or event_bus_bus_publish.

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, prerequisites, or when not to use. There is no mention of context or alternatives, leaving the agent without decision-making support.

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