get_pa_time_series

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the description's 'get' aligns with read-only behavior. However, the description adds little beyond annotations—it does not disclose details like response format, aggregation, or data granularity. The bar is lowered by annotations, but the description still fails to provide meaningful behavioral context.

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 12 words, concise and front-loaded. It avoids waste but could be slightly more informative without becoming verbose. No structural issues.

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 read operation with 4 parameters and full schema coverage, the description is adequate but incomplete. It does not explain the nature of the return data (e.g., data points interval, aggregation) or how the parameters affect the output. Lacks completeness for an agent to fully understand the tool's behavior without additional schema or output schema.

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?

Schema description coverage is 100%, so the schema itself documents all parameters (indicator_sys_id, start_date, end_date, limit). The tool description adds no parameter-specific information beyond the schema. Baseline of 3 is appropriate as schema does the heavy lifting.

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 ('get') and resource ('historical time-series data for a PA indicator'), and adds the purpose of identifying trends. It clearly distinguishes from siblings like 'get_pa_indicator' (metadata) and 'list_pa_indicators' (listing). However, it could be more precise about what 'PA indicator' means in context.

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 does not provide explicit guidance on when to use this tool versus alternatives. It implies usage for trend analysis but offers no when-to-use, when-not-to-use, or comparison with sibling tools such as 'get_pa_indicator' or 'list_pa_indicators'.

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