zabbix_update_maintenance

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

With no annotations, the description carries the full burden of behavioral disclosure, but it only states the operation itself. It does not indicate whether unspecified fields are preserved or reset, whether permissions are required, if the update is reversible, or what the response contains. This is a significant gap for a mutation tool.

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, front-loaded sentence with no redundant words. It concisely conveys the essential purpose without any fluff, making it easy to parse quickly.

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?

This tool has 8 parameters, no annotations, and no output schema, yet the description provides only a single sentence. It fails to explain important context such as partial update behavior, return values, or error handling. For a mutation tool of this complexity, the description is overly minimal and leaves the agent without sufficient guidance.

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 100% description coverage for all 8 parameters, so the baseline is 3. The tool description itself adds no extra parameter semantics, but because the schema already documents each field's meaning and purpose, the lack of description-level parameter detail is acceptable.

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 ('Update') and clearly names the resource ('maintenance period in Zabbix'), which immediately distinguishes it from sibling tools like create, delete, and get. It accurately conveys the exact operation without ambiguity.

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 provides no guidance on when this tool should be used compared to alternatives, such as zabbix_create_maintenance or zabbix_delete_maintenance. There is no mention of prerequisites, typical scenarios, or what to do before updating an existing maintenance period.

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