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

Annotations already declare readOnlyHint=true, so safety is covered; the description still adds meaningful context beyond that: secret tokens and the query string of the target URL are redacted from results. That redaction note is exactly the kind of thing an agent cannot infer from structured fields. It does not discuss pagination or result ordering, keeping it short of a 5.

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 compact clauses, front-loaded with the action and resource, followed by the security caveat. Every sentence carries information an agent needs; nothing is redundant with the title or annotations.

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 read-only paginated list tool with no output schema, the description covers what the tool does, what it returns, and what is withheld, while pagination is handled in the schema. It stops short of describing the response envelope or empty-list behavior, which is a minor gap.

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 (page, per_page) are fully documented in the schema, including defaults and the next_page hint. The description adds no parameter-level detail, so baseline 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?

States a specific verb and resource ("List the configured webhooks") and enumerates the salient returned fields (target URL, employee and dependent events). No sibling tool covers webhooks, so the resource name alone distinguishes it from the various smarthr_list_* tools for employees, departments, and dependents.

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?

Usage is implied by the resource: an agent should call this when it needs to inspect webhook configuration. However, there is no explicit when-to-use framing, no prerequisites, and no mention of alternatives or exclusions. Adequate but with a clear gap.

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