set_device_name

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

With no annotations, the description carries full responsibility for disclosing behavior, but it only states the action. It does not mention that this is a mutation, whether it overwrites existing names, if it is idempotent, what happens if the MAC is not found, or any required permissions. This is a significant gap for a write operation.

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 short sentence, which is appropriately front-loaded for a simple tool. However, it under-specifies by repeating what the tool name already implies, and it could be rephrased or expanded to add value 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 low complexity, a short description could suffice, but this one lacks essential context: no usage guidelines, no behavioral transparency, and no parameter semantics. The output schema exists but is not summarized, and there is no mention of success/failure responses or side effects. The tool is minimally complete but has clear 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 coverage is 0%, and the description does not compensate by explaining the parameters. The names 'mac' and 'name' are self-explanatory to a technical user, but the description does not clarify that 'mac' identifies the device and 'name' is the new value to set. It also does not describe any format constraints (e.g., MAC address format, name length).

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 '设置终端名称' clearly states the action (set) and resource (terminal name), matching the tool name without being a full tautology. It distinguishes from siblings like list_device_names and set_hostname by implying a per-terminal (MAC-based) name. However, it could explicitly mention the target is identified by MAC to differentiate from hostname setting.

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 usage guidance is provided. The description does not indicate when to use this tool, prerequisites (e.g., existing terminal), or how it relates to alternatives like list_device_names. There is no mention of whether it should be used before or after adding a device, or any context about device name management.

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