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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered without description help. The description adds only the 'all configured' scope, and that phrase is slightly in tension with the schema's includeInactive default of false (inactive webhooks are not returned unless requested).

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?

A single short sentence with no filler, and the scope is front-loaded. It is appropriately sized for a trivial list tool, though it is arguably under-specified rather than optimized.

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 read-only list tool with full schema coverage and annotations covering safety, this is minimally adequate. It never addresses return shape or pagination behavior, and with no output schema present the agent gets no hint about the response.

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 both parameters (customerId superadmin scoping, includeInactive default false) are fully documented in the schema. The description adds no parameter detail, and a baseline 3 is correct when 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?

States a specific verb (list) and resource (webhooks) with the scope qualifier 'all configured'. An agent can distinguish it from get_webhook/create_webhook/delete_webhook by name, but the description itself never names those siblings or clarifies the list-vs-get distinction.

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 when-to-use guidance, no mention of when to prefer get_webhook for a single item, and no prerequisites described. The agent must infer usage purely from the tool name.

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