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karbassi

slack-mcp

by karbassi

slack_lists_items_info

Retrieve details of a specific item in a Slack list by providing its item and list IDs.

Instructions

Get info about a list item.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
item_idYes
list_idYes

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 provided, the description must fully disclose behavioral traits. It lacks any mention of idempotency, error handling, or rate limits. The name implies readability but no explicit safety guarantees are given.

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

Conciseness2/5

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

The one-sentence description is concise but severely under-specified. It sacrifices essential information for brevity, failing to provide adequate context for correct invocation.

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

Completeness1/5

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

Given the lack of parameter documentation, absence of annotations, and presence of an output schema, the description is wholly incomplete. It does not help the agent understand input requirements or expected output.

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%, yet the description does not explain what 'item_id' and 'list_id' represent or how to obtain them. The agent receives no semantic guidance beyond parameter names.

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 'Get info' and the resource 'list item', making the basic purpose understandable. However, it does not differentiate from siblings like slack_lists_items_list, which also provides list item information, lacking specificity on what 'info' 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?

The description provides no guidance on when to use this tool versus alternatives such as slack_lists_items_list, nor does it mention any prerequisites or exclusions. The agent is left without context for proper selection.

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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