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

With no annotations, the description carries the full burden. It discloses the three signals evaluated (events, crawler hits, goals), the green success condition, and that output is 'in plain words', which is useful. It omits auth requirements, error/failure behavior, and rate limits, so it is only partially complete.

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?

Three short, front-loaded sentences with no filler. The only minor inefficiency is the clipped 'Free.' fragment, which reads awkwardly but is still concise.

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 simple single-parameter read check with no output schema, the description conveys what is being checked and the success state. However, the lone parameter is unexplained and the return shape is only glancingly described ('in plain words'), leaving gaps an agent must guess at.

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?

One parameter (siteId) exists with 0% schema description coverage, so the description is expected to compensate but never mentions siteId or what value it should take. It adds no meaning beyond the bare schema property name.

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 states a specific purpose: checking whether the live site is sending events, crawler hits and goals, and reporting what is missing. It is clear what the tool does, though it does not differentiate itself from the related sibling tracking_install, so an agent has to infer the boundary between checking and installing.

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 explicit when-to-use guidance and no named alternative. The 'Tracking turns green' line describes the success state rather than when an agent should call this tool, and 'Free' hints at cost but does not route the agent between this and tracking_install.

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