Events: Count_audit_events

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds nothing beyond that: it does not say what is returned (an integer count), how a missing filter behaves, or whether the count is bounded by pagination. For a read-only counting tool the bar is lower, but there is essentially zero added context.

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 the operation front-loaded and no filler. It is efficient, though its brevity borders on under-specification for a tool with a multi-operator filter grammar.

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?

No output schema exists, so the description could have stated the return shape (a count) and the behavior of an absent filter, but does not. The filter grammar is fully covered by the schema and annotations cover safety, so nothing critical is missing for invocation, but the result contract is left unstated.

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 the schema itself documents the Brivo filter syntax, operators, and separators in detail. The description only restates that a filter exists, adding no syntax or semantic detail beyond the schema. 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 (count) and resource (audit events) with the scoping condition (matching a filter). It implicitly separates itself from the sibling List_audit_events by being a counting operation, but never explicitly names that distinction, so an agent must infer it from the verb alone.

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 or when-not-to-use guidance is given. The description does not point to List_audit_events or Count_access_events as alternatives, nor does it explain when a count is preferable to listing. Usage is only inferable from the verb.

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