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

Beyond the annotations, the description discloses admin-only access, signed JSON payload contents, oldest-first delivery after a minute, preview-and-confirm behavior for sensitive actions, retry/backoff behavior with disabling after a day, and the 10-per-workspace and HTTPS public-host constraints. These are concrete behavioral traits an agent needs before invoking destructive or open-world actions.

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 dense and front-loads the action summary before usage guidance and an example. It is appropriately sized for a multi-action administrative tool, though the sentence packing is heavy and the example adds limited value.

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 complex action-based interface, full schema descriptions, annotations, and an output schema, the description covers the operational context, constraints, confirmation flow, and failure behavior needed to invoke the tool correctly. No critical invocation detail appears to be missing.

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%, so the schema already documents every parameter thoroughly. The description reinforces key semantics such as confirm:true preview behavior and object_types null meaning all objects, but much of that is already present in the schema, so it does not substantially exceed the baseline.

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 states a specific resource and operation set: admin-only change-feed webhooks, with each action named (list, create, update, pause/resume, rotate_secret, test, delete). It also explains what the tool is for in business terms: letting an admin connect another system to CRM changes without polling.

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?

It gives a clear usage context in the 'When to use' line and an example, which is enough to select the tool for webhook administration. It does not explicitly compare against alternatives such as read_changes or polling, so it stops short of a 5.

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