discord_change_nickname

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

The description adds a clear behavioral nuance: passing null or an empty string clears the nickname. However, because no annotations are provided, the description carries the full burden for behavioral disclosure; it does not mention permission requirements, whether the change is reversible, or any audit/reason implications. It is more informative than a bare mutation statement but still leaves important behavior undocumented.

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 two concise, front-loaded sentences. Every word adds value, and the most important operational nuance ('null/empty to clear') is included without extra 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?

Despite having an output schema, this four-parameter mutation tool lacks a clear explanation of the optional 'guild_id' and 'reason' parameters, as well as any permission or side-effect context. Given zero annotations, the description is not complete enough for an agent to reliably invoke the tool in the correct server context or know the constraints of nickname changes.

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%, so the description needs to compensate. It explains the meaning of 'nickname' and the clearing behavior, but it does not explain the purpose or role of 'guild_id', 'reason', or how 'member_id' relates to a specific Discord server. This leaves a substantial gap for a 4-parameter tool.

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 and resource: 'Change a member's nickname.' It also clarifies the clear behavior ('Pass null/empty to clear'), making the operation unambiguous. This clearly distinguishes the tool from sibling tools, which target roles, channels, messages, and other resources rather than nicknames.

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 implies the tool is for changing or clearing a member nickname and provides the important null/empty usage note. However, it does not explicitly state when to prefer this tool over alternatives or mention any conditions such as required permissions. The guidance is implied rather than explicit.

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