zabbix_graphitem_update

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

With no annotations provided, the description carries the full burden of disclosing behavior. It only states 'update' implying modification, but fails to mention whether the operation is destructive, requires authentication, or returns a result. For a mutation tool, this is insufficient transparency.

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 concise (one short phrase), but this brevity sacrifices necessary detail. It is not 'appropriately sized' as it fails to convey essential information for effective use.

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 large set of sibling tools and the lack of output schema details (though an output schema exists), the description is incomplete. It does not explain what a graphitem is, how to specify which item to update, or typical usage patterns.

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 description does not explain the single 'params' parameter. The parameter is an opaque object with no guidance on its structure or required fields. The agent cannot infer what data to provide for an update.

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 'Zabbix API graphitem.update method' identifies the resource (graph items) and action (update), but it essentially restates the tool name. It does not elaborate on what updating a graphitem entails, making it only marginally clear. A more specific verb-resource description like 'Update an existing graph item in Zabbix' would improve clarity.

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 on when to use this tool versus siblings like zabbix_graphitem_create or zabbix_graphitem_get. The description does not mention prerequisites, typical scenarios, or alternatives, leaving the agent without decision support.

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