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

No annotations exist, so the description carries the full behavioral burden. It usefully discloses the content of the result set, but says nothing about read-only nature, required permissions/entitlements, aggregation behavior, or whether the window is inclusive; for an analytics tool with zero annotation coverage this leaves real gaps.

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 dense sentence with no filler and the metric list front-loaded. It is a fragment rather than a complete sentence, which slightly hurts readability but costs no tokens.

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 the description compensates well by enumerating the returned metrics. Parameters are fully covered by the schema. What remains missing is usage context relative to siblings, so it is not fully complete.

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 all three parameters (from, to, profile_id) are documented in-schema, including the 24h default and the profile scoping rule. The description adds no parameter-level meaning, so 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 resource (DNS activity) and enumerates the exact metrics returned (total queries, blocked vs allowed, blocked percentage, IPv4/IPv6, encrypted queries), which distinguishes it from log/detail siblings like get_logs. It never uses an explicit verb ('returns'/'summarizes'), so it stops short of 5.

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 when-to-use guidance. Nothing tells the agent to pick this over get_logs for raw events, or that it is the aggregate counterpoint to detailed log retrieval, and no prerequisites or exclusions are given.

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