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

No annotations are provided, so the description must carry the behavioral burden. It explicitly discloses that deletion is permanent and names the affected resource. It does not detail cascading effects or permission requirements, but the key irreversible, destructive behavior is clearly stated.

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 compact and front-loaded: the core action appears in the first sentence, and the 'Use when' bullet adds a clear trigger without extra wording. Every sentence earns its place.

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 deletion tool with one required parameter and an output schema, the description covers the essential invocation context. It could mention the distinction from remove_webhook_resource, but the current description plus schema provides enough information for an agent to use the tool correctly.

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%, and both parameters (api_key and webhook_id) are already documented in the schema. The description adds no parameter-level meaning or format guidance, so the baseline of 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 opens with 'Permanently delete a webhook endpoint,' which is a specific verb-resource pair and makes the destructive nature explicit. It clearly distinguishes this from update_webhook, create_webhook, and remove_webhook_resource.

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 'Use when' block provides a clear condition: 'You want to remove a webhook from your account.' It gives the agent a trigger context, though it does not explicitly mention when not to use this tool or name the closest alternative such as remove_webhook_resource.

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