get_account_summaries

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

With no annotations provided, the description bears full responsibility for behavioral disclosure. It merely states 'retrieves information,' which implies a read operation, but omits details about permissions, rate limits, data scope, or whether the result includes summaries or raw data. This leaves an agent with an incomplete behavioral picture.

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, front-loaded sentence that immediately states the verb and object. Every word adds value, and there is no redundancy or filler. Perfectly concise for its 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?

Given the tool's simplicity (no parameters, has output schema), the description covers the core functionality. However, it does not hint at the output structure or data fidelity (e.g., 'returns a list of accounts with their properties'), reducing completeness slightly. An output schema exists, so return value details are not required, but some additional context would improve agent understanding.

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 tool has zero parameters, so the input schema is trivially complete (100% coverage). The description does not need to add parameter details. Per guidelines, a baseline of 4 is appropriate for zero-parameter tools.

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 uses the specific verb 'retrieves' and names the resource ('user's Google Analytics accounts and properties'), making the purpose clear. It implicitly distinguishes from sibling tools like get_property_details (narrower scope) and run_report (different purpose), though it could be more explicit about the summarization aspect.

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?

The description offers no guidance on when to use this tool versus alternatives such as get_property_details or run_report. An agent would have to infer usage context solely from the tool name and sibling names, which is insufficient for clear decision-making.

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