postiz

What This Skill Does

The Postiz skill provides a direct, high-performance integration for scheduling and managing social media content across 28+ platforms including X (Twitter), LinkedIn, Bluesky, Reddit, and more. Unlike middleware-heavy solutions like n8n, this skill communicates directly with the Postiz API, allowing for granular control over post states, scheduling, and media handling. It includes features for deduplication, multi-platform content adaptation, and automated thread creation for X. By managing authentication via cookie-based sessions, it ensures persistent access to your self-hosted or cloud-based Postiz instance, enabling autonomous social media management.

Installation

To begin using this skill within your environment, ensure you have the OpenClaw agent platform installed. Run the following command in your terminal to fetch and install the skill from the central repository:

clawhub install openclaw/skills/skills/coolmanns/postiz-pro

After installation, ensure your environment variables or agent configurations point to the correct Postiz instance URL. You must initialize the session using the authentication endpoint provided in the documentation before triggering any scheduling actions. If authentication fails, the skill will return a 401 error, requiring a re-login cycle.

Use Cases

• Automated Cross-Posting: Publish the same announcement across LinkedIn, X, and Bluesky simultaneously, with content optimized for each platform's character limits and tone.
• Content Pipeline Management: Use the skill to query existing schedules and ensure no overlap, using the built-in deduplication check before queuing new content.
• Media-Rich Social Campaigns: Automatically pull images or videos from remote URLs and attach them to posts during the scheduling process.
• Long-form Thread Generation: Break down technical blog posts into engaging X threads by utilizing the thread-creation capability, ensuring content remains within the 280-character limit per post.

Example Prompts

1. "Post a summary of my latest tech blog to LinkedIn, X, and Bluesky. Ensure the LinkedIn version is professional and under 3,000 characters, while the X version uses a thread to stay under 280 characters per tweet."
2. "Check the next available posting slot for my LinkedIn account and schedule a promotional post for tomorrow morning at 9:00 AM using the image from https://example.com/promo.jpg."
3. "List all scheduled posts for the next 48 hours, identify any duplicates, and delete the redundant post for Bluesky."

Tips & Limitations

• Authentication Management: Cookies expire periodically. Implement a check in your workflow to trigger the login endpoint whenever a 401 response is detected.
• Platform Limits: Always respect the character limits (280 for X, 3,000 for LinkedIn, 300 for Bluesky) to avoid API rejection. The skill does not automatically truncate content; ensure your prompt includes character-aware constraints.
• Scheduling: Always verify your timezone when scheduling posts. The API expects ISO 8601 UTC formats for all timestamps to ensure accuracy across global audiences.