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karbassi

slack-mcp

by karbassi

slack_lists_access_set

Set access level for a Slack list by specifying the level and optionally assigning access to specific channels or users.

Instructions

Set access level to a list for specified entities.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
list_idYes
access_levelYes
channel_idsNo
user_idsNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

No annotations are provided, so the description carries the full burden. It only states the function but does not disclose side effects (e.g., whether access is additive or replaces existing settings), authorization needs, or error conditions. The behavior is opaque.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence with no fluff, but it is too minimal. It sacrifices informativeness for brevity, which is not ideal for a tool with no parameter descriptions.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite having an output schema, the description does not cover return values or error scenarios. It is insufficient for an agent to fully understand the tool's capabilities and correct usage.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description adds no information about the parameters. It does not explain 'list_id', 'access_level', 'channel_ids', or 'user_ids', leaving agents to guess their meanings and valid values.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly identifies the action ('set') and resource ('access level to a list'), and it distinguishes from sibling tools like 'slack_lists_access_delete'. However, it could be more precise about the entities (channels/users) rather than the vague 'specified entities'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives like 'slack_lists_access_delete' or other list operations. The description lacks context about prerequisites or typical use cases.

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

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