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karbassi

slack-mcp

by karbassi

conversations_request_shared_invite_approve

Approve pending shared channel invite requests, with options to restrict access or override the destination channel.

Instructions

Approve a shared channel invite request.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
messageNoOptional message object (``{"text": ..., "is_override": ...}``) to attach to the approval.
invite_idYesID of the shared-invite request to approve.
channel_idNoID of the channel to override the requested invite destination.
is_external_limitedNoRestrict the invited team to post-only (limited) access.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

No annotations provided, so the description carries full burden. It gives no information about side effects, permissions needed, notifications, or any behavioral implications beyond the bare action.

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

Conciseness4/5

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

Extremely concise single sentence, front-loading the purpose. Could expand slightly without losing conciseness.

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 complexity (4 parameters) and the presence of closely related sibling tools (e.g., conversations_approve_shared_invite), the description lacks context on what distinguishes this tool and what the output contains, even though an output schema exists.

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

Parameters3/5

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

Schema description coverage is 100% with clear parameter descriptions. The tool description adds no additional parameter meaning beyond the schema, so baseline 3 is appropriate.

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?

Description clearly states the action ('Approve') and resource ('a shared channel invite request'). However, with sibling tools like 'conversations_approve_shared_invite' also performing approval, no differentiation is provided.

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, no prerequisites, and no context about when to approve vs decline. The description is bare.

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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