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karbassi

slack-mcp

by karbassi

conversations_archive

Archive a Slack conversation by providing its channel ID to remove it from the active channel list.

Instructions

Archive a conversation.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
channelYesID of the conversation to archive (e.g. C0123).

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

The description does not disclose behavioral traits like reversibility (though 'conversations_unarchive' exists), required permissions, or effects on participants. With no annotations provided, the agent lacks critical context for safe invocation.

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?

The description is extremely concise with a single sentence. While it is efficient, the lack of structure or elaboration reduces its effectiveness.

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 simplicity with one parameter and an output schema, the description is too minimal. It fails to explain side effects, return values, or behavioral context, leaving agents underinformed.

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?

The schema covers 100% of parameter descriptions, so the baseline is 3. The description adds a usage example but no additional meaning beyond what the schema already states.

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 states the verb 'archive' and resource 'conversation', making the action explicit. However, it does not differentiate from similar sibling tools like 'conversations_close' or 'conversations_unarchive', lacking context on what archiving specifically entails.

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 such as 'conversations_unarchive' or 'conversations_close'. There is no mention of prerequisites, use cases, or conditions for proper usage.

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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