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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so safety is covered. The description adds real value beyond that by disclosing sort order and the exact fields each audit returns, though it says nothing about pagination or how limit interacts with ordering.

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, zero filler, with the resource and ordering front-loaded before the return-field summary. Every clause carries information an agent can use.

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?

With no output schema, enumerating the returned fields (scores, PingAura, issue count, Lighthouse mobile/desktop, CWV status) is exactly the right compensation. Minor gap: no note on result paging or whether limit caps the newest-first window.

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 domain_id and limit are already documented in the schema. The description mentions 'for a domain' but adds no format, default, or range detail beyond structured fields, matching the baseline 3.

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 site health audits for a domain') plus ordering ('newest first') and per-audit scope ('one page'). The enumerated return fields make it obvious how this differs from get-audit-issues or get-site-health-summary.

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 name and description (browse audits for a domain), but there is no explicit when-to-use guidance and no named alternatives, even though siblings like get-audit-issues and run-site-audit sit adjacent in purpose.

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