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karbassi

slack-mcp

by karbassi

slack_lists_access_delete

Remove access to a Slack list for specified users and channels. Revoke permissions by providing list ID and optionally user or channel IDs.

Instructions

Remove access to a list for specified entities.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
list_idYes
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?

With no annotations, the description must fully convey behavioral traits, but it only says 'remove access', omitting details on reversibility, impact on other access, or required permissions.

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 concise sentence, but it is too terse; it could include more information without becoming verbose.

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?

Given the tool's complexity (3 parameters, output schema), the description is incomplete; it does not explain effect on existing access, prerequisites, or output format.

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?

The input schema has 0% description coverage and the tool description does not explain the parameters (list_id, channel_ids, user_ids) or how they relate to 'specified entities', providing no value beyond the schema.

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

Purpose5/5

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

The description clearly states the action (remove access) and the resource (a list) and specifies that it is for specified entities, distinguishing it from the sibling tool slack_lists_access_set which likely adds or modifies access.

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?

The description provides no guidance on when to use this tool versus alternatives like slack_lists_access_set, nor does it mention any prerequisites or post-conditions.

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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