Automate Dev.to with Codex

Publish developer articles to Dev.to, post under organizations, add cover images and canonical URLs, and tag your content — all from the command line or through your AI agent.

Setup Guide GitHub

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

Publish to Dev.to 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 Dev.to integration
postiz integrations:list

# Publish an article to Dev.to
postiz posts:create \
  -c "# My Article\n\nContent here..." \
  -s "2025-01-15T10:00:00Z" \
  --settings '{"title":"Building with Postiz","tags":[{"value":"opensource","label":"Open Source"}]}' \
  -i "devto-id"

Dev.to-Specific Features

👨‍💻

Developer Articles

Publish technical articles with full Markdown support including code blocks, syntax highlighting, and embedded content.

🏢

Organization Posting

Publish articles under your Dev.to organization. Share content on behalf of your team or company with a single setting.

🖼

Cover Images

Upload and attach eye-catching cover images to your articles. Stand out in the Dev.to feed with visual content.

🔗

Canonical URLs

Set canonical URLs to link back to your original content. Perfect for cross-posting from your personal blog without SEO penalties.

🏷

Smart Tagging

Add up to 4 tags per article to reach the right developer audience. Tags drive discoverability on the Dev.to platform.

📅

Scheduled Publishing

Schedule articles for future publication with precise timestamps. Plan your developer content calendar ahead of time.

How It Works

Find Your Dev.to Integration

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

Discovery

# List all integrations
postiz integrations:list

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

# Get Dev.to settings schema
postiz integrations:settings <devto-id>

Prepare Your Content

Write your article in Markdown. Dev.to supports rich formatting including headers, code blocks with syntax highlighting, images, and liquid tags.

Upload

# Upload a cover image (optional)
RESULT=$(postiz upload cover.png)
IMAGE_PATH=$(echo "$RESULT" | jq -r '.path')
IMAGE_ID=$(echo "$RESULT" | jq -r '.id')

echo "Cover: $IMAGE_PATH"
# https://uploads.postiz.com/cover.png

Publish Your Article

Create a post with your article content, title, cover image, tags, and optional organization and canonical URL settings.

Publish

postiz posts:create \
  -c "# Building with Postiz

Automate your social media workflow
with the Postiz CLI...

```bash
npx skills add gitroomhq/postiz-agent
```" \
  -s "2025-03-01T09:00:00Z" \
  --settings '{
    "title": "Building with Postiz",
    "main_image": {
      "id": "img-id",
      "path": "https://uploads.postiz.com/cover.png"
    },
    "canonical": "https://myblog.com/postiz",
    "organization": "org-id",
    "tags": [
      {"value": "opensource", "label": "Open Source"},
      {"value": "webdev", "label": "Web Dev"}
    ]
  }' \
  -i "devto-id"

Dev.to Settings Reference

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

Field	Type	Required	Description
`__type`	string	Yes	Must be "devto"
`title`	string	Yes	Article title (min 2 characters)
`main_image`	object	No	Cover image: {id: string, path: string}
`canonical`	string	No	Original URL for canonical link
`organization`	string	No	Organization ID to publish under
`tags`	array	No	Up to 4 tags: [{value: string, label: string}]

Common Configurations

Copy-paste these settings for common Dev.to publishing scenarios.

Simple Developer Article

settings.json

{
  "title": "10 TypeScript Tips You Need to Know",
  "tags": [
    {"value": "typescript", "label": "TypeScript"},
    {"value": "javascript", "label": "JavaScript"},
    {"value": "webdev", "label": "Web Dev"},
    {"value": "programming", "label": "Programming"}
  ]
}

Organization Post with Cover Image

settings.json

{
  "title": "Introducing Our New Open Source Tool",
  "main_image": {
    "id": "img-abc123",
    "path": "https://uploads.postiz.com/launch-cover.png"
  },
  "organization": "my-org-id",
  "tags": [
    {"value": "opensource", "label": "Open Source"},
    {"value": "showdev", "label": "Show Dev"},
    {"value": "productivity", "label": "Productivity"}
  ]
}

Cross-Posted Article with Canonical URL

settings.json

{
  "title": "How We Reduced Build Times by 80%",
  "canonical": "https://engineering.mycompany.com/build-times",
  "tags": [
    {"value": "devops", "label": "DevOps"},
    {"value": "ci", "label": "CI/CD"},
    {"value": "performance", "label": "Performance"}
  ]
}

Full-Featured Article

settings.json

{
  "title": "Building a Real-Time Dashboard",
  "main_image": {
    "id": "img-xyz789",
    "path": "https://uploads.postiz.com/dashboard.png"
  },
  "canonical": "https://myblog.dev/real-time-dashboard",
  "organization": "my-team-id",
  "tags": [
    {"value": "react", "label": "React"},
    {"value": "websockets", "label": "WebSockets"},
    {"value": "tutorial", "label": "Tutorial"},
    {"value": "javascript", "label": "JavaScript"}
  ]
}

What is Codex?

Codex is OpenAI's autonomous coding agent that handles software engineering tasks — writing features, fixing bugs, and answering questions about your codebase. It works via CLI and IDE integrations, and can execute shell commands like Postiz.

💻

CLI & IDE Native

Codex runs from your terminal or IDE. It executes shell commands directly, making Postiz integration seamless — no extra configuration needed.

🔧

Autonomous Execution

Codex works in sandboxed cloud environments, autonomously running commands, reading output, and chaining multi-step workflows like social media posting.

⚡

Parallel Tasks

Run multiple Codex tasks simultaneously. Schedule posts to different platforms in parallel while Codex handles other coding work.

How Postiz Works with Codex

Codex discovers Postiz when you install it globally. It reads the SKILL.md to understand available commands and can autonomously chain them for social media workflows.to articles with the right settings.

✓Install Postiz Agent globally with npx skills add
✓Codex reads the SKILL.md and learns all Postiz commands
✓POSTIZ_API_KEY must be set in environment
✓Codex executes commands in sandboxed environments
✓Works alongside your coding tasks in parallel

Install Postiz

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

# Set your API key
export POSTIZ_API_KEY=your_api_key

# Codex discovers Postiz commands
# from the SKILL.md automatically
codex "list my social media integrations"

Dev.to Publishing with Codex

Tell Codex what to post from your terminal or IDE — it discovers your integrations via Postiz and handles the entire publishing workflow.to integration, and handles the entire publishing workflow autonomously.

💻

CLI Workflow

Terminal and IDE integration

Tell Codex what to post from your terminal or IDE — it discovers your integrations via Postiz and handles the entire publishing workflow.

Codex CLI

$ codex "Post to Devto about our
  new feature launch, schedule for
  tomorrow at 9am"

Codex: I'll handle that.
  Running: postiz integrations:list
  Found your Devto integration.
  Running: postiz posts:create ...

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

💻

Parallel Tasks

Multiple tasks at once

Codex can handle multiple tasks in parallel. Schedule posts to different platforms while it works on other coding tasks simultaneously.to automatically — no manual trigger needed.

Codex Parallel Tasks

# Run multiple posting tasks in parallel
$ codex "Schedule a post about our
  launch to X for tomorrow 9am" &

$ codex "Write a LinkedIn article
  about our new feature and schedule
  for tomorrow noon" &

$ codex "Fix the bug in auth.ts"

# All three tasks run simultaneously

Why Codex + Postiz for Dev.to

Codex's autonomous execution makes Postiz a natural fit. The agent reads the SKILL.md to understand every available command, then autonomously chains them together for Dev.to workflows.

✓CLI-native — runs from your terminal or IDE
✓Autonomous execution in sandboxed environments
✓Parallel task support — post while coding
✓Cover images uploaded and attached automatically
✓Cross-post to Dev.to + other platforms in a single session
✓Powered by OpenAI's most capable models

SKILL.md (auto-discovered)

---
name: postiz
description: Social media automation
  CLI for scheduling posts across
  30+ platforms including Dev.to
metadata:
  codex:
    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>

# Dev.to Settings
title, main_image, canonical,
organization, tags

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 Dev.to integration, uploads your cover image, applies tags and organization settings, and publishes the article.

Claude Code

> Publish my React tutorial to Dev.to
  under our org with a cover image,
  tag it with react and webdev

Claude will automatically run:
  postiz integrations:list
  postiz upload ./cover.png
  postiz posts:create \
    -c "$(cat react-tutorial.md)" \
    -s "2025-03-02T09:00:00Z" \
    --settings '{"title":
      "React Tutorial",
      "main_image":{"id":"...",
        "path":"uploaded-url"},
      "organization":"org-id",
      "tags":[...]}' \
    -i "devto-id"

Dev.to + Other Platforms

Publish the same article to Dev.to and other platforms in a single command. Each platform gets its own settings.

Terminal

# Cross-post an article to Dev.to and Medium
postiz posts:create \
  -c "$(cat article.md)" \
  -s "2025-03-01T09:00:00Z" \
  --settings '{
    "title": "Building Real-Time Apps",
    "canonical": "https://myblog.dev/real-time",
    "tags": [
      {"value": "webdev", "label": "Web Dev"},
      {"value": "react", "label": "React"}
    ]
  }' \
  -i "devto-id,medium-id"

# Batch schedule a week of Dev.to articles
for day in 1 2 3 4 5; do
  postiz posts:create \
    -c "$(cat articles/day${day}.md)" \
    -s "2025-03-0${day}T09:00:00Z" \
    --settings '{"title":"Day '"$day"' Dev Tips","tags":[{"value":"tutorial","label":"Tutorial"}]}' \
    -i "devto-id"
done

Start publishing to Dev.to

Install Postiz Agent and automate your Dev.to content strategy with AI-powered scheduling and publishing.

Get Started

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