[Slack MCP Plugin: Add support for Slack Lists (read/write)]

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Use Case

I use Slack Lists extensively as lightweight, structured documents for 1:1 meeting agendas (updated weekly). They've replaced Miro boards and other tools for this purpose.

Being able to read and update these lists from Claude Code would close a significant gap in my workflow — e.g., preparing for 1:1s, reviewing open topics across reports, or updating action items after conversations.

Suggested Tools

• slack_read_list — read list contents (columns, rows, metadata)
• slack_update_list — add/edit/remove rows
• slack_search_lists — find lists by title or content

Slack API Reference

Slack provides lists.* API methods that could back these tools. Required OAuth scope: lists:read / lists:write.

Context

The current plugin surfaces "Shared this list:" in message history but cannot access the actual list content, making it a blind spot in an otherwise well-covered Slack integration.

Proposed Solution

Suggested Tools

• slack_read_list — read list contents (columns, rows, metadata)
• slack_update_list — add/edit/remove rows
• slack_search_lists — find lists by title or content

Slack API Reference

Slack provides lists.* API methods that could back these tools. Required OAuth scope: lists:read / lists:write.

Context

The current plugin surfaces "Shared this list:" in message history but cannot access the actual list content, making it a blind spot in an otherwise well-covered Slack integration.

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

API and model interactions

Use Case Example

Use Case

I use Slack Lists extensively as lightweight, structured documents for 1:1 meeting agendas (updated weekly). They've replaced Miro boards and other tools for this purpose.

Being able to read and update these lists from Claude Code would close a significant gap in my workflow — e.g., preparing for 1:1s, reviewing open topics across reports, or updating action items after conversations.

Additional Context

_No response_