slack

slack is a skill for Claude Code, Codex from spinabot/brigade. It costs 35 tokens per session (732 once invoked), scanned A, a copy of slack, MIT.

A set of actions for managing Slack, a workplace messaging service, through a tool. It works with channels and direct messages using their IDs.

In plain words
What is it for?
Use it to read, send, edit, or delete messages; add or remove reactions; pin or unpin items; list reactions or pins; and look up member or custom emoji information.
Why use it?
It lets an agent handle common Slack updates without switching between conversations and the Slack app. The supported actions cover both messages and message organization.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to read, send, edit, or delete messages; add or remove reactions; pin or unpin items; list reactions or pins; and look up member or custom emoji information.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/spinabot/brigade/slack
About the project

Brigade is an ecosystem for running crews of AI agents as a personal intelligence system, with local handling of credentials and support for exposing agent crews to the internet for testing. It is for people who want to organize and operate multiple AI agents using their own API keys or existing Claude, ChatGPT, Copilot, Claude Code, or Codex access. The catalogue skills provide workflows for using Brigade and its agent ecosystem.

spinabot/brigade · 3,498 stars · on GitHub · brigade.spinabot.com

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.

Any agent
npx skills add spinabot/brigade --skill slack
Clone the repo
git clone --depth 1 https://github.com/spinabot/brigade

Made for: Claude Code, Codex.

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.

agentmods badge for slack

README.md
[![agentmods](https://agentmods.dev/badge/skills/spinabot/brigade/slack.svg)](https://agentmods.dev/skills/spinabot/brigade/slack)
Your own site
<a href="https://agentmods.dev/skills/spinabot/brigade/slack"><img src="https://agentmods.dev/badge/skills/spinabot/brigade/slack.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 732 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin 78% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00035 $0.00732
Opus 5 $0.00017 $0.00366
Sonnet 5 $0.00007 $0.00146
Haiku 4.5 $0.00003 $0.00073

Measured 9d ago against content hash 2f2e4935219a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

slack 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 9d ago.

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.

Origin

This is a copy

78% identical to slack — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/slack/SKILL.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Slack Actions

Overview

Use slack to react, manage pins, send/edit/delete messages, and fetch member info. The tool uses the bot token configured for Brigade.

Inputs to collect

  • channelId and messageId (Slack message timestamp, e.g. 1712023032.1234).
  • For reactions, an emoji (Unicode or :name:).
  • For message sends, a to target (channel:<id> or user:<id>) and content.

Message context lines include slack message id and channel fields you can reuse directly.

Actions

Action groups

Action group Default Notes
reactions enabled React + list reactions
messages enabled Read/send/edit/delete
pins enabled Pin/unpin/list
memberInfo enabled Member info
emojiList enabled Custom emoji list

React to a message

{
  "action": "react",
  "channelId": "C123",
  "messageId": "1712023032.1234",
  "emoji": "✅"
}

List reactions

{
  "action": "reactions",
  "channelId": "C123",
  "messageId": "1712023032.1234"
}

Send a message

{
  "action": "sendMessage",
  "to": "channel:C123",
  "content": "Hello from Brigade"
}

Edit a message

{
  "action": "editMessage",
  "channelId": "C123",
  "messageId": "1712023032.1234",
  "content": "Updated text"
}

Delete a message

{
  "action": "deleteMessage",
  "channelId": "C123",
  "messageId": "1712023032.1234"
}

Read recent messages

{
  "action": "readMessages",
  "channelId": "C123",
  "limit": 20
}

Pin a message

{
  "action": "pinMessage",
  "channelId": "C123",
  "messageId": "1712023032.1234"
}

Unpin a message

{
  "action": "unpinMessage",
  "channelId": "C123",
  "messageId": "1712023032.1234"
}

List pinned items

{
  "action": "listPins",
  "channelId": "C123"
}

Member info

{
  "action": "memberInfo",
  "userId": "U123"
}

Read the full file on GitHub · 145 lines

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.

  1. 9d ago First seen · 145 lines · 35 tokens per session scan A 2f2e4935219a

Subscribe to this mod's changes

slack is a skill published in the GitHub repository spinabot/brigade (3,498 stars, last pushed 2d ago), licensed MIT. It adds 35 tokens to every session and 732 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 78% identical to slack, differing in 8 lines, and is treated as a copy.