Postiz (generic) Skill | Agent Skills

Postiz (generic)

This skill documents how to use the Postiz CLI to manage social media posts.

It should NOT contain user-specific channel IDs, default publication rules, or language policy.

Postiz CLI

The postiz binary must be available in your PATH.

Auth (required):

POSTIZ_API_KEY
POSTIZ_BASE_URL

Core Workflow

Creating a post follows a one or two-step process depending on whether images are included.

1. List Integrations

Find the IDs for the channels you want to post to.

postiz channels --pretty

2. Upload Images (Optional)

If your post needs images, upload them first to get a public URL. You can repeat this for multiple images.

postiz upload-file --file-path /path/to/image.jpg --pretty

Capture the file.path from the JSON response. This is the URL you'll use in the next step.

3. Create a Post

Create a single post or a thread.

Draft (safe default): If --status is omitted, the post is created as draft by default.

postiz posts create --content "Your post text" --integrations <id> --pretty

Single post:

postiz posts create --content "Your post text" --integrations <id> --status now --pretty

Scheduled post with image:

postiz posts create \
  --content "Your post text" \
  --integrations <id> \
  --status scheduled \
  --scheduled-date "YYYY-MM-DDTHH:mm:ss+01:00" \
  --images "https://public-url-from-upload.png" \
  --pretty

Thread / Multiple posts: Add multiple --content flags. They will be posted in order as a thread.

postiz posts create \
  --content "First tweet" \
  --content "Second tweet" \
  --integrations <id> \
  --pretty

Important Formatting Note

To avoid line break issues (like literal \n), pass multi-line content directly to the CLI or use a subshell to read from a file:

postiz posts create --content "$(cat post.txt)" --integrations <id> --pretty

Useful Commands

postiz posts list --start-date YYYY-MM-DD --end-date YYYY-MM-DD --pretty: List posts in a date range.
postiz posts delete --id <postId> --pretty: Delete a scheduled or draft post.

Agent Skills: Postiz (generic)

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