What is slack marketplace?

A Claude Code add-on that connects Claude Code with Slack, a team messaging service. It is maintained by Slack and updated with its releases.

Use it when you need Slack-related capabilities in Claude Code. The available information does not specify the concrete actions it can perform.

It provides a Slack integration for Claude Code, although the supplied description does not say which Slack tasks it supports.

slack marketplace — Plugin for Claude Code by slackapi

About the project

slack-skills-plugin is a plugin that connects coding agents to Slack through a Slack MCP server and provides Slack-focused skills for users and developers. It is used with Claude Code, Cursor, Codex, and other coding agents to work with Slack and build Slack applications. The catalogue entries are the plugin's included skills, commands, MCP server, instructions, and settings.

slackapi/slack-skills-plugin · 165 stars · on GitHub · docs.slack.dev

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/slackapi/slack-skills-plugin

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/slackapi/slack-skills-plugin/marketplace/github.svg)](https://agentmods.dev/plugins/slackapi/slack-skills-plugin/marketplace)

Your own site

<a href="https://agentmods.dev/plugins/slackapi/slack-skills-plugin/marketplace"><img src="https://agentmods.dev/badge/plugins/slackapi/slack-skills-plugin/marketplace/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/slackapi/slack-skills-plugin/marketplace"><img src="https://agentmods.dev/badge/plugins/slackapi/slack-skills-plugin/marketplace.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

slack marketplace scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-plugin/marketplace.json · 18 lines

What it actually says

{
  "name": "slack",
  "description": "The Slack plugin for Claude Code, updated with each release.",
  "owner": {
    "name": "Slack"
  },
  "plugins": [
    {
      "name": "slack",
      "source": {
        "source": "url",
        "url": "https://github.com/slackapi/slack-skills-plugin.git",
        "ref": "v1.7.0"
      }
    }
  ]
}

Contents

The plugins it lists here

This marketplace lists 1 plugin kept in the same repository. Each has its own page, its own measurements and its own install command.

Plugin slack 15 inside A not measured

Files

What ships with it

1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

plugin.json 496 B

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday Changed ae5383f4af9c
2d ago Changed a18650650788
3d ago First seen · 18 lines scan A f0c3f6f6210a

Subscribe to this mod's changes

slack marketplace is a plugin published in the GitHub repository slackapi/slack-skills-plugin (165 stars, last pushed today), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-11-04.

Claude Code codex cursor mcp skills slack

slack marketplace next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
slack marketplaceslackapi/slack-skills-plugin	Plugin	165	today	MIT	A	—	Claude Code
superpowers-zhjnMetaCode/superpowers-zh	Plugin	8.5k	11d ago	MIT	A	—	Claude Code
awesome-agent-skillskhasky/awesome-agent-skills	Plugin	31	18d ago	MIT	A	—	Claude Code
claude-node-typescript-runtime-package-starter777genius/universal-agent-plugins	Plugin	15	today	Apache-2.0	A	—	Claude Code
human-htmlrhnfzl/human-html	Plugin	2	yesterday	MIT	A	—	Claude Code
market-intelligencedaddia/claude-for-strategy	Plugin	2	4mo ago	MIT	A	—	Claude Code
consultingdaddia/claude-for-strategy	Plugin	2	4mo ago	MIT	A	—	Claude Code