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

Annotations already indicate idempotentHint=true and readOnlyHint=false, so the safety profile is covered externally. However, the description adds no extra behavioral context, such as whether changes take effect immediately, whether repeated toggling has side effects, or any permissions required. It simply restates the operation without enriching beyond structured data.

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 concise sentence with no wasted words. It is front-loaded with the action and resource. However, it is perhaps too terse to satisfy deeper informational needs, but as a minimal purpose statement it is efficient.

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 toggle operation with fully documented parameters, the description is sufficient to understand the basic action. Yet it lacks any mention of operation effects, such as whether enabling/disabling impacts delivery or requires webhook revalidation. Given the simplicity, a modest score reflects minor gaps.

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 provides 100% coverage of parameters, including descriptions for 'active' and 'webhook_id'. The description adds no additional semantic detail beyond what the schema already states. Baseline of 3 is appropriate because the schema does the heavy lifting.

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 'Enable or disable a webhook' uses a clear action verb and specifies the resource being acted on. It distinguishes itself from sibling tools like update_webhook by focusing specifically on toggling activation state, making the core purpose unambiguous.

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 guidance is provided on when to use this tool versus alternatives. The description does not mention relationships to update_webhook, which might also handle status changes, or when to prefer this over create/delete webhooks. Usage context is entirely absent.

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