getUrlFilterWhitelist

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. The description adds two useful facts beyond annotations — results are paginated and the payload is MAC addresses explicitly permitted through MAC filtering — but says nothing about ordering, total counts, or behavior when the allow list is empty.

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 sentences with the resource and scope front-loaded and no filler. Slightly more value could be extracted from the same length by naming the sibling it is confused with or clarifying URL-vs-MAC filtering.

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, three-parameter list tool this is close to adequate, and the brief note on what is returned partly compensates for the absence of an output schema. It stops short of confirming the return structure (e.g. per-entry fields or pagination metadata) that the agent would otherwise get from an output schema.

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%, including the page/pageSize bounds and the siteId default/enumeration hint via listSites, so the schema carries the parameter semantics. The description only echoes the pagination and site scope at a high level, adding no format or edge-case detail (e.g. page beyond last, pageSize maximum effect).

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: retrieves allow-list (whitelist) entries for a site, and clarifies the entries are MAC-based and paginated. It does not disambiguate from similar siblings such as getMacFilterDetail, getSitesDeviceWhiteList, or getGridAllowList, and the 'getUrlFilterWhitelist' name sits oddly against the MAC-based framing, which may cause brief hesitation.

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 when-to-use guidance, no exclusions, and no pointer to a related or alternative tool. The agent must infer from the name and sibling list whether this is the URL-filter allow list or the MAC-filter allow list; nothing in the description resolves that routing decision.

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