slackapi / slackapi/slack-skills-plugin

Add emoji reaction support (reactions.add / reactions.remove)

Open
#31 2 comments 9 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

area:mcp enhancement
Dominant language
Python
Stars
132
Forks
34
Avg merge
1d 6h
Merged PRs (30d)
16

Description

Feature Request

The Slack MCP server currently supports reading, searching, messaging, and canvas operations, but there's no tool for adding or removing emoji reactions to messages.

Use Case

Emoji reactions are a core part of Slack workflows — they're used for acknowledging messages, triaging requests, signalling status (e.g. 👀 for "looking into it", ✅ for "done"), and lightweight polling. Being able to add/remove reactions via the MCP server would enable AI agents to participate in these workflows.

Proposed Tools

  • slack_add_reaction — Add an emoji reaction to a message (wraps reactions.add)
    • Parameters: channel_id, message_ts, emoji_name
  • slack_remove_reaction — Remove an emoji reaction from a message (wraps reactions.remove)
    • Parameters: channel_id, message_ts, emoji_name

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the existing Slack MCP server tool implementations and follow their patterns for the proposed slack_add_reaction and slack_remove_reaction entry points. Implement wrappers for reactions.add and reactions.remove using channel_id, message_ts, and emoji_name, then verify that both tools expose the requested parameters and behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
api, backend
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
68/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.