Batch query user behavior breakdown segmented by device, country, and engagement metrics.
Get user behavior breakdown (Device, Country, Engagement) in a single batch
| Name | Required | Description | Default |
|---|---|---|---|
| propertyId | Yes | GA4 Property ID | |
| accountId | No | GA4 account ID for multi-account setups | |
| startDate | Yes | Start date (YYYY-MM-DD) | |
| endDate | Yes | End date (YYYY-MM-DD) |
Changes observed during successful MCP inspections.
v0.1.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description must disclose behavioral traits. It only says 'Get', implying read-only, but lacks details on data aggregation, real-time nature, permissions, or any limitations. For a tool with zero annotation coverage, this is insufficient.
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?
Single sentence that is front-loaded with verb and resource, zero waste. Every word serves a purpose.
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?
No output schema exists, so description should hint at return structure or data shape. It does not. It also fails to clarify 'Engagement' or the role of accountId. For a tool with 4 parameters and no output schema, completeness is poor.
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?
Input schema covers all 4 parameters with descriptions (100% coverage), so the description does not need to add much. It adds no extra semantic meaning beyond what the schema provides, so baseline 3 is appropriate.
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?
Clearly states action 'Get' and specific resource 'user behavior breakdown' with three explicit dimensions (Device, Country, Engagement), and adds 'in a single batch' to indicate consolidated return, distinguishing it from tools like analytics_by_country.
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 explicit guidance on when to use this tool versus alternatives like analytics_by_country or analytics_trends. The description implies a batch approach but does not provide when/why this is preferred.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.