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

With no annotations provided, the description carries the full burden. It clearly discloses that deletion is permanent and cascades to captured events, which is critical safety information for an agent. However, it does not mention response behavior or error conditions, but for a simple delete tool this is sufficient.

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 front-loads the action and includes the key scope detail. There is no redundant or unnecessary information.

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 tool with one parameter and no output schema, the description adequately covers the purpose, the destructive scope, and the parameter via the schema. It could mention side effects on related resources, but the description already covers the most relevant one (captured events).

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 has one parameter, bucket_id, with a description of 'The endpoint id.' Since the schema covers 100% of the parameters and the tool description adds no extra meaning beyond that, 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 uses the specific verb 'delete' and identifies the resource as 'webhook endpoint and its captured events,' clearly distinguishing it from sibling tools like get_bucket and list_buckets. The word 'permanently' adds important scope and irreversibility.

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 implies usage for permanently removing a webhook endpoint, but it does not explicitly state when to use this tool versus alternatives or include exclusions. There are no prerequisites mentioned, so it falls at the 'implied usage' level.

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