zabbix_module_exists

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

With no annotations, the description should describe behavior such as required permissions, side effects, or return value. It only repeats the method name, leaving the agent uninformed about what the tool actually does.

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 extremely short, but this is due to under-specification rather than conciseness. It could be expanded with critical information without becoming verbose.

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 the complexity of Zabbix API and many sibling tools, the description is grossly incomplete. It fails to mention what input is required, what output is returned, or how it relates to other module tools.

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 0%, and the only parameter 'params' is an optional generic object with no description. The tool description does not explain what fields are needed (e.g., filter by name or ID), making it nearly impossible to use correctly.

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 it is a 'module.exists' method for Zabbix API, which indicates the verb and resource. However, it does not distinguish from numerous other 'exists' tools (e.g., zabbix_host_exists) nor clarify what a Zabbix module is.

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?

No guidance is provided on when to use this tool versus alternatives like zabbix_module_get or zabbix_module_create. The description lacks any context about prerequisites or when to prefer this tool.

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