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karbassi

slack-mcp

by karbassi

conversations_archive

Archive a Slack conversation to remove it from active channels while preserving its history for future reference.

Instructions

Archive a conversation.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
channelYes

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 must fully disclose behavioral traits. It does not state whether archiving is reversible, requires permissions, or has side effects (e.g., removing from lists). The description is too minimal to inform the agent of behavioral outcomes.

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 short sentence, which is concise but lacks necessary detail. It could be structured with more context without becoming verbose, but its brevity limits its usefulness.

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 simple schema (1 parameter) and presence of an output schema, the description should still explain behavior and parameter meaning. It fails to do so, leaving significant gaps in completeness.

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 does not elaborate on the required 'channel' parameter. The agent receives no guidance on what value (e.g., channel ID or name) to provide, leaving the parameter semantically unclear.

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 verb 'Archive' and the resource 'conversation', directly indicating the tool's action. Among sibling tools, conversations_unarchive exists, so the archive action is distinguished from unarchive, making the purpose specific.

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 archive versus alternatives like close, leave, or delete. There is no mention of prerequisites, context, or when not to use this tool.

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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