Create channel

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

Annotations already indicate this is a write operation (readOnlyHint=false) and non-destructive. The description adds one useful behavioral note about permission overwrites being named as strings, but does not disclose other behavioral aspects like required permissions, creation side effects, or what happens to the channel after creation. With annotations present, this level of added context is acceptable but limited.

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 short sentences, front-loaded with the core action and a key parameter note. No wasted words; every sentence adds value.

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?

For a creation tool with 9 parameters and no output schema, the description is minimal. It covers the primary purpose and one important semantic detail but leaves out context about return value, prerequisites, permission requirements, or how different channel types behave. This is adequate but not comprehensive for a tool of this complexity.

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 only 11%, so the description carries a burden to clarify parameters. It adds meaning to the permission_overwrites structure by stating that permissions are given as names, which is helpful. However, it does not clarify the meaning of other less obvious parameters like position, rate_limit_per_user, or the type enum, leaving some gaps that the schema alone (with types/enums) partially fills.

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 states 'Create a channel (or category) in a guild' with a specific verb and resource, clearly distinguishing this from sibling tools like create_role or create_guild. It also mentions permission overwrites, adding key context about the tool's function beyond just the name.

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 clearly implies the tool is for creating channels (including categories) in a guild, which is the correct context. It does not explicitly mention when not to use it or name alternatives, but the verb and resource make the intended use obvious among the sibling tools.

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