ga4_health_check

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

With no annotations, the description carries the full burden of behavioral disclosure. It explicitly states the operation is read-only and that OAuth tokens are not exposed, which are important safety traits. However, it does not describe what happens on success/failure, what the response format is, or any side effects beyond verification. The disclosure of read-only and token safety is solid, but other behavioral details are absent.

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 single, concise sentence that front-loads the key purpose (read-only health check) and then elaborates on what it verifies. There is no redundancy or filler; every word adds value.

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 tool with one optional parameter and no output schema, the description covers the core functionality but lacks important context: the response format (e.g., pass/fail, status details), error handling (e.g., what if credentials are invalid), and guidance on when to use this over specific diagnostics. The absence of output schema makes the return behavior ambiguous, and the lack of usage exclusions leaves the tool partially underspecified.

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?

The input schema covers 100% of the parameters, and the description adds no additional meaning to the propertyId parameter beyond what the schema already provides. Since the schema adequately documents the parameter, the description provides no incremental value for parameter understanding.

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 clearly states the tool is a read-only health check that verifies credentials, accessible properties, and metadata/property access. The verb 'health check' is specific, and the scope is distinct from the sibling diagnostics, though it doesn't explicitly name a differentiating alternative. The mention of not exposing OAuth tokens further clarifies its purpose.

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 provided on when to use this tool versus the many sibling diagnostic tools (e.g., ga4_get_property_quotas_snapshot, ga4_get_ecommerce_diagnostics). There is no indication of preferred use cases, prerequisites, or conditions where this tool should be avoided. The description leaves the agent to infer when a general health check is appropriate.

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