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karbassi

slack-mcp

by karbassi

files_revoke_public_url

Revoke public sharing access for a file, removing external visibility and permissions.

Instructions

Revoke public/external sharing access for a file.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
fileYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

No annotations are present, so the description must disclose behavioral traits. It indicates a mutation (revoke) but does not detail side effects, permission requirements, or what happens if the file has no public URL.

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 lacks necessary details. It earns its place but is under-specified for safe usage.

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

Completeness3/5

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

Given the simple tool structure (one param, output schema present), the description is adequate but incomplete. It does not mention required permissions or the state of the file before revocation.

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%. The description does not explain the 'file' parameter beyond its name, leaving ambiguity about whether it expects a file ID, path, or other identifier. No value is added over 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 'Revoke' and the resource 'public/external sharing access for a file', which is specific and distinguishes this tool from siblings like files_shared_public_url that enable sharing.

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 is provided on when to use this tool versus alternatives like files_shared_public_url or files_info. It does not mention prerequisites or context for revocation.

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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