get_max_batch_data

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint false, so safety is well covered. The description adds the 'latest data' and 'one call' semantics, but does not disclose pagination behavior or response characteristics. No contradiction with annotations.

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?

A single, front-loaded sentence with no filler. Every word earns its place: the verb, the resource, the scope, and the batching benefit are all present.

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?

The tool has only two parameters, one required, a full schema, and a strong annotation set, so the minimal description is mostly sufficient. However, the relationship between page_num and the batch request is not clarified, leaving a minor ambiguity.

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 documents both device_sns and page_num. The description only loosely maps to device_sns via 'MAX-series inverters' and does not add meaning for page_num beyond what the schema already provides.

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') with a specific resource ('latest data'), a clear scope ('several MAX-series inverters'), and a distinguishing mode ('in one call'). This makes it easy to tell apart from single-device tools like get_max_data and historical-data tools like get_device_history.

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 phrase 'several MAX-series inverters in one call' implies it is for batch reads, but the description never explicitly states when to use this tool instead of get_max_data or get_device_last_data, nor does it mention exclusions or alternatives.

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