MsearchTool

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only restates the core batch-search capability and reveals nothing about response aggregation, failure modes, request size limits, authentication behavior, or side effects, so transparency is minimal.

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 clear sentence with no filler or redundancy, making it efficient and easy to parse. It is slightly terse but still communicates the essential purpose without wasted words.

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 12 parameters, no annotations, and no output schema, yet the description provides only a high-level purpose. It omits details about how to structure a multi-search request, what the response looks like, error behavior, or how this compares to sibling search tools, leaving substantial gaps for an agent to call it correctly.

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 high at 92%, and the body parameter is well described with NDJSON format details and an alternative array input option. The tool description itself adds no extra parameter meaning, so the baseline score of 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?

The description states a clear verb and resource: execute several search operations in one request. It conveys the multi-search nature of the tool, but it does not explicitly differentiate it from siblings like SearchIndexTool or GenericOpenSearchApiTool.

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 search operations in one request' implies the tool is intended for batched or multi-search scenarios, giving a basic usage hint. However, it provides no explicit guidance on when to prefer this tool over SearchIndexTool or when not to use it.

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