Automate Slack with nanoclaw

Send channel messages, schedule announcements, share media, and streamline team communications — all from the command line or through your AI agent.

Setup Guide GitHub

Please make sure there is always a human in the loop.

Post to Slack in Seconds

Terminal

# Install the skill
npx skills add gitroomhq/postiz-agent

# Set your API key
export POSTIZ_API_KEY=your_api_key

# Find your Slack integration
postiz integrations:list

# Send a message to a Slack channel
postiz posts:create \
  -c "Team update: deployment complete" \
  --settings '{"channel":"C12345"}' \
  -i "your-slack-integration-id"

Slack-Specific Features

📢

Channel Messaging

Post messages to any Slack channel your bot has access to. Share updates, announcements, and notifications automatically.

⏰

Scheduled Messages

Schedule messages for the perfect time. Queue up announcements, reminders, and updates to post when your team is most active.

🖼

Media Sharing

Attach images, files, and rich media to your Slack messages. Share screenshots, reports, and visual updates with your team.

👥

Team Communications

Automate recurring team updates, standup summaries, and status reports across multiple channels simultaneously.

🤖

Bot Integration

Leverage Slack bot tokens for seamless posting. Your AI agent authenticates once and posts on behalf of your workspace.

📅

Multi-Channel Posting

Target different channels for different content types. Send engineering updates to #dev and marketing wins to #general.

How It Works

Find Your Slack Integration

List your connected accounts and grab your Slack integration ID. You can also fetch available settings to see what options are supported.

Discovery

# List all integrations
postiz integrations:list

# Filter for Slack
postiz integrations:list | jq \
  '.[] | select(.identifier=="slack")'

# Get Slack settings schema
postiz integrations:settings <slack-id>

Choose Your Channel

Identify the Slack channel ID where you want to post. You can find channel IDs in Slack by right-clicking a channel and selecting 'View channel details'.

Channel Setup

# Channel IDs look like C12345
# Find them in Slack:
#   Right-click channel > View channel details
#   The ID is at the bottom of the dialog

# Or use Slack's API directly
# to list channels programmatically

Create Your Post

Send a message to your Slack channel with the channel ID in settings. Schedule it for later or post immediately.

Post Creation

postiz posts:create \
  -c "Team update: deployment complete" \
  --settings '{"channel":"C12345"}' \
  -i "slack-id"

# Schedule for later
postiz posts:create \
  -c "Reminder: standup in 15 minutes" \
  -s "2025-01-15T09:45:00Z" \
  --settings '{"channel":"C12345"}' \
  -i "slack-id"

Slack Settings Reference

Every Slack post accepts these platform-specific settings via the --settings flag.

Field	Type	Required	Description
`__type`	string	Yes	Must be "slack"
`channel`	string	Yes	Slack channel ID (e.g. C12345)

Common Configurations

Copy-paste these settings for common Slack posting scenarios.

General Channel Announcement

settings.json

{
  "channel": "C12345"
}

Engineering Updates

settings.json

{
  "channel": "C67890"
}

Marketing Channel Post

settings.json

{
  "channel": "CABCDE"
}

What is nanoclaw?

nanoclaw is a lightweight, container-based alternative to nanoclaw by Qwibit AI. It connects to WhatsApp, Telegram, Slack, Discord, and Gmail, features memory and scheduled jobs, and runs on Anthropic's Agents SDK.

📦

Container-Based

nanoclaw runs in containers for easy deployment and isolation. Spin up your social media automation agent in seconds with Docker.

💬

Multi-Platform Chat

Connect to WhatsApp, Telegram, Slack, Discord, and Gmail. Message nanoclaw from wherever you already communicate.

🧠

Memory & Context

Schedule recurring tasks with cron jobs. nanoclaw can post your Slack messages on a schedule without you having to ask each time.

How Postiz Works with nanoclaw

When you install Postiz Agent globally, nanoclaw automatically discovers it by reading the bundled SKILL.md file. This file tells nanoclaw what commands are available, what environment variables are needed, and how to compose Slack messages with the right settings.

✓Install Postiz skill with npx skills add gitroomhq/postiz-agent
✓nanoclaw reads the SKILL.md and learns all Postiz commands
✓POSTIZ_API_KEY must be set in environment
✓Skills are loaded on-demand, keeping the agent context clean
✓Runs on Anthropic's Agents SDK for reliable execution

Install Postiz

# Install the Postiz skill
npx skills add gitroomhq/postiz-agent

# Set your API key
export POSTIZ_API_KEY=your_api_key

# nanoclaw discovers Postiz through
# its skill system
nanoclaw skills list

Slack Posting with nanoclaw

Message nanoclaw from WhatsApp, Telegram, or Slack — it discovers your integrations via Postiz, composes your content, and handles the entire posting workflow from within its container.

🐳

From Any Chat App

Message nanoclaw from WhatsApp, Telegram...

Send a message to nanoclaw from your favorite chat app. It runs as a persistent daemon on your machine, so it picks up your message, discovers your Slack workspace via Postiz, and sends the message to the right channel — all while you go about your day.

nanoclaw

You: Post to Slack about our new
  feature launch, schedule for tomorrow
  at 9am

nanoclaw: On it! Here's my plan:
  1. Found your Slack integration
  2. Composing your post
  3. Scheduling for tomorrow 9:00 AM

  Done! Your post is scheduled.
  Post ID: abc-123

🐳

Scheduled & Proactive

nanoclaw supports scheduled jobs ou...

nanoclaw supports cron-based heartbeat tasks. Set up a recurring job that sends daily standup reminders or weekly status updates to your Slack channels automatically — no manual trigger needed.

nanoclaw.json (scheduled job)

{
  "scheduled_jobs": [
    {
      "cron": "0 9 * * 1-5",
      "prompt": "Check ~/content/posts
  for new .txt files. For each one,
  read the content and schedule a
  post to Slack for today
  at noon. Move posted files
  to ~/content/published."
    }
  ]
}

Why nanoclaw + Postiz for Slack

nanoclaw makes Postiz a natural fit for your Slack workflow. The agent discovers all available commands and autonomously chains them together.

✓Message from WhatsApp or Telegram to post to Slack — no terminal needed
✓Container-based — easy to deploy, isolate, and scale
✓Built-in memory remembers your content preferences
✓Scheduled jobs for hands-free daily posting
✓Cross-post to Slack + other platforms in a single conversation
✓Runs on Anthropic's Agents SDK — reliable and extensible

SKILL.md (auto-discovered)

---
name: postiz
description: Social media automation
  CLI for scheduling posts across
  30+ platforms including Slack
metadata:
  nanoclaw:
    requirements:
      env:
        - POSTIZ_API_KEY
      binaries:
        - postiz
---

# Available Commands
- postiz integrations:list
- postiz integrations:settings <id>
- postiz posts:create
- postiz upload <file>
- postiz analytics:platform <id>

# Slack Settings
channel (required)

Also Works with Claude Code

Postiz Agent works as a CLI tool with any AI agent that can execute shell commands — including Anthropic's Claude Code.

Claude Code

by Anthropic

Claude reads the SKILL.md file to learn all available Postiz commands, then autonomously discovers your Slack integration, identifies the correct channel, and sends your message.

Claude Code

> Post a deployment update to #engineering
  on Slack

Claude will automatically run:
  postiz integrations:list
  postiz posts:create \
    -c "Deployment v2.4.1 complete" \
    --settings '{"channel":"C12345"}' \
    -i "slack-id"

Slack + Other Platforms

Post the same announcement to Slack and other platforms in a single command. Each platform gets its own settings.

Terminal

# Post an announcement to Slack and Discord simultaneously
postiz posts:create \
  -c "New feature released: dark mode is here!" \
  -s "2025-01-15T09:00:00Z" \
  --settings '{"channel":"C12345"}' \
  -i "slack-id,discord-id"

# Batch schedule a week of Slack updates
for day in 1 2 3 4 5; do
  postiz posts:create \
    -c "Daily standup reminder - Day $day" \
    -s "2025-03-0${day}T09:00:00Z" \
    --settings '{"channel":"C12345"}' \
    -i "slack-id"
done

Start posting to Slack

Install Postiz Agent and automate your Slack communications with AI-powered scheduling and messaging.

Get Started

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