zabbix_update_user

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

No annotations exist, and the description gives zero behavioral context. It doesn't disclose permission requirements, whether updates are partial or full, idempotency, or any side effects. This is as minimal as the 'Process' example.

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?

A single sentence with no redundant words, front-loaded and clear. However, it is arguably too terse for a tool with 13 parameters, but the conciseness dimension rewards lack of 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?

With 13 parameters, no annotations, and no output schema, a one-line description is severely inadequate. It fails to explain update behavior, required permissions, or what happens on success/failure.

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 coverage is 100%, so the baseline is 3. The description adds no additional meaning beyond the verb 'update'; it doesn't clarify parameter semantics or highlight key optional fields.

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 action (Update) and the resource (an existing user in Zabbix). It distinguishes from sibling tools like zabbix_create_user or zabbix_delete_users by specifying 'existing', though it doesn't explicitly mention alternatives.

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, prerequisites, or how to obtain the required userid. The description doesn't mention prerequisite steps like fetching users via zabbix_get_users.

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