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

Annotations already declare readOnlyHint=false, destructiveHint=true and idempotentHint=true, so the safety profile is covered. The description adds one genuinely useful behavioral fact beyond the annotations — that setting a webhook returns the signing secret only once — but it never explains what the destructive operation actually destroys or what clearing a webhook does.

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?

Two sentences, operation list front-loaded, and the one-time signing-secret caveat placed last where it belongs. Dense but not padded; slightly run-on in the first sentence.

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 5-parameter mutation tool with no output schema and no parameter documentation, the description is too thin. It omits what did_id identifies, what clear_webhook does, and any auth or permission context an agent would need before invoking this.

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%, so the description carries the full burden for 5 undocumented parameters. It loosely gestures at pause/resume, chat-visibility (monitor_ids) and webhook_url, but the required did_id and the clear_webhook flag are untouched, and the mappings require guessing.

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 enumerates concrete verbs and operations (pause, resume, control chat visibility, set webhook) applied to the WhatsApp AI resource, so an agent can tell roughly what the tool does. It stops short of differentiating this tool from any sibling (e.g. update_forwarding, set_number_routing), so it earns a 4 rather than a 5.

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?

There is no statement of when to use this tool, when not to, or which alternative handles overlapping needs. Usage is only implied by the operation list; no prerequisites or conflict guidance is given.

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