list_privilege_timeline_events

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and openWorldHint=true, so the safety profile is covered and the bar is lower. The description adds modest context by enumerating the event categories (gain/loss/activation) and scoping to a period, but does not disclose return shape, pagination behavior, or limit semantics. No contradiction with the annotations exists.

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 sentence with zero filler, front-loading the verb and resource before the qualifiers. It earns its place but could easily absorb a few more words to clarify the action/provider filters without losing its tightness.

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 4-parameter tool with 0% schema coverage and no output schema, the description is too thin. It omits parameter semantics, expected output format, any limit/action/provider behavior, and fails to position itself among the several privilege-timeline siblings. The annotations cover read-only/idempotent safety, but the operational picture is incomplete.

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 0%, so the description carries the full burden of explaining parameters. It only clarifies the time period (via 'período informado'), which maps to 'days', while 'limit', 'action', and 'provider' remain entirely unexplained — their meaning is left to name inference, and the default 'all' values for action/provider are not interpreted.

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?

The description names a specific verb ('Lista'), a resource ('eventos de ganho/perda/ativação de privilégios'), and a time scope ('período informado'), so an agent can grasp what it does. However, it does not distinguish it from closely related siblings such as get_identity_privilege_timeline, summarize_privilege_timeline, or export_privilege_timeline_report — the differentiation is left to inference from the verb.

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 guidance is given on when to use this tool versus the many timeline-related siblings (get_identity_privilege_timeline, summarize_privilege_timeline, export_privilege_timeline_report, timeline_natural_language_query). With such a dense sibling cluster, the absence of any routing hints or exclusions leaves the agent to guess which tool fits a given intent.

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