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

With no annotations, the description must carry behavioral disclosure. It usefully states cursor polling, at-least-once delivery, and the distinction between build time and observation time, but it omits important behavior such as ordering, duplicate handling under at-least-once delivery, pagination semantics beyond the cursor, and any permission or rate-limit 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?

The description is a compact single sentence with no obvious filler and front-loads the resource and polling mechanism. Its density and jargon make it harder to parse, but it is not verbose.

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?

There is no output schema and no annotations, and all three input parameters have zero schema description coverage. The description supplies a conceptual model of the event log but is not complete enough to confidently invoke the tool, especially regarding filtering, pagination, and return behavior.

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% for three parameters. The description hints at cursor polling, which loosely relates to the "after" parameter, and mentions event-log concepts, but it never explains the "after" format, the event enum, or the "limit" parameter and its maximum.

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 identifies an event log and cursor polling, but does not use a clear action verb such as retrieve/list or explicitly say whether it returns events or manages them. It is distinguishable from siblings only indirectly through the term "event log"; the cryptic "Luxembourg" framing and dense log semantics leave the purpose only partially clear.

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?

The description gives no explicit when-to-use guidance, no conditions for choosing this over siblings like timeline, changes_in_period, or diff, and no exclusions. Cursor polling is mentioned, but that is a mechanism, not usage guidance.

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