getAnalyticsDevicesSeries

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

With no annotations, the description bears the full burden of behavioral disclosure. It only states that the tool 'Retrieves' data, implying a read operation, but does not mention any behavioral traits such as data scope, error handling, rate limits, or authentication requirements. The description adds minimal transparency beyond the verb.

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 sentence of eight words, front-loading the core purpose. There is no redundant or extraneous information, making it highly concise and easy for an agent to parse quickly.

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 that the tool has an output schema, the description does not need to detail return values. However, it lacks context about data range limits, pagination, or prerequisites (e.g., valid profile_id). It is minimally adequate but could be more helpful.

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 has 100% coverage with descriptions for all three parameters. The description does not add any extra meaning or context about the parameters beyond what the schema already provides. Thus, it meets the baseline but does not exceed it.

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 a specific verb ('Retrieves'), identifies the resource ('time-series query statistics by device'), and includes the purpose ('for charting'). It clearly distinguishes from sibling tools like getAnalyticsDevices (which likely returns a list) and other series tools that focus on different dimensions.

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 provides no guidance on when to use this tool versus alternatives. There is no mention of context, exclusions, or comparisons to other analytics series tools such as getAnalyticsDestinationsSeries or getAnalyticsDNSSECSeries, leaving the agent to infer usage.

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