update_system_hostname

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

The description adds no behavioral context beyond what the annotations already state (readOnlyHint=false, idempotentHint=true, destructiveHint=false). It fails to disclose potential side effects like network reconnection or the need for a reboot after changing the hostname, which is significant for this mutation.

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, focused sentence that directly communicates the tool's purpose. It contains no filler or redundant content, making it efficient and easy to scan.

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?

While the schema fully documents all parameters and an output schema exists, the description itself lacks guidance on when to apply changes immediately, potential side effects, or how this tool interacts with related read tools. It is adequate for a simple update but leaves contextual gaps.

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 100%, so the baseline is 3. The description mentions hostname and domain but adds no additional semantic detail beyond what the parameter descriptions already provide. It does not clarify relationships between parameters, such as whether both can be null or the effect of apply_immediately.

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 a specific action: 'Update the system hostname and/or domain'. It identifies the resource and the operation, and distinguishes this from read-only siblings like get_system_hostname.

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 given about when to use this tool versus alternatives, prerequisites, or post-update verification steps. It does not mention that get_system_hostname can be used to read current values, nor does it explain when apply_immediately should be true or false.

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