dcs_event_stats

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

The only behavioral signal is the "[READ]" prefix, which merely restates the readOnlyHint=true annotation already supplied and adds no new context. Nothing is said about what the counts represent (per-day? per-policy?), whether results are aggregated or grouped, or how the optional filter narrows the set.

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?

One short sentence with zero padding is easy to parse and front-loaded, but it is concise by omission rather than by discipline. The structural efficiency buys nothing because the content is too thin to act on.

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, no parameter documentation, and no annotation beyond a read-only flag, the description should explain the shape of the returned counts and the filter semantics but does neither. For a stats/aggregation endpoint sitting among 30+ siblings, this leaves the agent under-informed.

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 for the single filter_text parameter, yet it never explains what the text matches (event name, asset, policy, message?) or whether it is a substring or exact match. The default empty string is also unexplained.

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?

"Read event counts" gives a verb (read) and a resource (event counts), so the basic purpose is inferable. However, it does nothing to separate this from the many sibling stats tools (dcs_asset_stats, dcs_alert_stats, dcs_report_stats, dcs_security_group_stats) or from dcs_events, which presumably returns the underlying records rather than aggregates.

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?

There is no guidance on when to pick this tool over dcs_events or the other *_stats siblings, and no statement of prerequisites or exclusions. The agent must guess from the name alone.

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