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

Annotations already declare readOnlyHint=true, so the description does not need to explain safety. It adds some useful scope by saying results are limited to channels available to the current user, but it does not describe pagination behavior, ordering, or what channel fields are returned.

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 clear sentence with no wasted wording, and the core purpose is front-loaded. It is efficient, though its terseness contributes to gaps elsewhere.

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 list tool with pagination parameters and no output schema, the description omits pagination semantics and return-shape expectations. The readOnly annotation covers safety, but the description is too thin to fully guide correct invocation.

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?

The input schema has two parameters, limit and offset, with 0% schema description coverage, and the description does not mention either parameter. It therefore adds no meaning about pagination defaults, bounds, or usage.

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 a specific verb and resource: list channels. It also scopes the result to channels available to the current user. However, it does not distinguish this from sibling tools such as mIRC_discover or mIRC_list_messages.

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 that this lists channels the user can access, but it gives no explicit guidance on when to use this tool versus mIRC_discover, mIRC_list_messages, or other channel-related siblings. There are no exclusions or alternatives named.

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