zms_get_agent_version_statistics

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

Annotations already declare readOnlyHint=true, so the 'Read-only' note is redundant. The description adds some value by describing the result as a 'curated aggregate view' and focusing on version distribution, but it lacks details on pagination, data volume, or performance implications.

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 succinct with three sentences, front-loading the core action. Every sentence adds useful context without redundancy or fluff.

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?

Despite lacking an output schema, the description gives a good high-level idea of the return data (distribution of versions). It also mentions a required customer ID. However, it does not specify the exact structure of the response or whether the 'search' parameter impacts the output.

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 one parameter 'search' with 0% description coverage, yet the description does not mention this parameter at all. The agent receives no guidance on what 'search' filters or how to use it, leaving a critical gap.

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 clearly states the tool retrieves 'ZMS agent version statistics' as a 'curated aggregate view' showing the distribution of agent software versions across the fleet. This distinct purpose is well-differentiated from siblings like 'zms_get_agent_connection_status_statistics', which focuses on connection status.

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 notes that the tool is 'useful for spotting outdated agents' and requires 'ZSCALER_CUSTOMER_ID', providing clear context for when to use it. However, it does not explicitly mention when not to use it or suggest alternative tools for other scenarios.

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