Image Posts
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Image Posts
For image posts, the image needs to be publicly accessible — either on R2, a CDN, or any public URL. The skill takes the URL:
threads-api post --image "https://assets.example.com/diagram.png" \
"Here's the architecture I landed on after three rewrites."Internally, it creates a container with media_type: IMAGE and the image_url pointing to your hosted image. Then publishes.
If you’re already using the R2 CDN setup covered in the Co-Operating System course, your images are already publicly accessible. The workflow is: generate or screenshot → upload to R2 → post to Threads with that URL.