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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description still adds real value beyond them: it discloses the required authorization level ('Needs an owner or admin key') and the newest-first ordering, both of which shape whether and how an agent calls it.

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 dense sentences with no filler; the resource and ordering are front-loaded, followed immediately by filtering, pagination and the auth requirement. It is compact and front-loaded, though the single run-on inventory of record types is slightly heavy.

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, the description usefully names the returned fields (time, client address, request id) and the auth requirement, so an agent knows what it gets and what it needs. Coverage is solid for a read-only list tool; only explicit sibling routing is missing.

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 already 100%, so the baseline is 3. The description nonetheless adds meaning: it clarifies that 'before' is a pagination cursor tied to the previous page's next value, and that 'action' accepts either a specific action or a dotted group prefix, reinforcing the schema's semantics in task terms.

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 resource (the account's audit log) and its ordering (newest first), plus the record types it contains. An agent can tell it apart from most siblings, though it never explicitly contrasts with runtime_events_list, which is the closest potential confusable.

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?

Gives concrete operational guidance for filtering (action or group ending in a dot) and pagination (page with before), which implies how to use it. However, it never states when to reach for this tool versus runtime_events_list, and offers no exclusions or prerequisites beyond the key requirement.

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