slack_list_channel_members

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

No annotations are provided, so the description carries the transparency burden. It adds useful behavioral details: pagination via cursor, limit range/default, and that channel_id may start with C, D, or G. It does not mention rate limits or auth requirements, but for a straightforward read/list operation this is acceptable.

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 well organized with a one-line purpose followed by concise Args and Returns sections. Every sentence is informative, and there is no redundant or vague text.

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?

The description covers all parameters, return shape, and pagination behavior. Given the simple scope, this is nearly complete; the only gap is explicit guidance about when to choose this tool over sibling list tools.

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%, but the description fully compensates by explaining the meaning of each parameter, including channel_id prefix formats, limit range and default, and cursor's role in pagination. This adds significant value beyond the bare schema.

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: 'List members of a Slack channel.' It clearly identifies the primary input (channel_id) and the return value (member user IDs), making it distinguishable from siblings like slack_list_channels and slack_list_users.

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 usage through the channel_id parameter and the list-members behavior, but it does not explicitly state when to prefer this tool over alternates such as slack_list_users or slack_list_channels. No direct when/when-not guidance is provided.

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