space-gzh-cover

Provide your article title and the Skill generates a 1175x500 PNG banner in 2.35:1 ratio using image generation. It places the core title phrase in the central safe zone, then runs check_cover.py to verify the ratio and export a share preview.

WeChat keeps only the central 1:1 square of a 2.35:1 cover when shared, which is about 42.6% of the width. Any title text in the left or right wings is cut off, so core phrases must be placed inside the central square.

The recommended canvas is 1175x500 pixels at a 2.35:1 ratio in PNG format. The central 500-pixel-wide square (x 337-837) is the safe zone that survives sharing, and titles should be 6-14 Chinese characters in at most two lines.

Run python3 scripts/check_cover.py on the image with the --safe-zone, --share-preview, and --thumbnail flags. It outputs an annotated safe-zone image, the exact 1:1 share crop, and a feed thumbnail so you can confirm the core phrase stays readable.

The check_cover.py script requires Python 3 and the Pillow library for image loading, cropping, and annotation. Install it with pip install Pillow before running the validation.

First try a targeted edit correcting only the wrong line while keeping everything else unchanged. If the same text fails twice, shorten it, then fall back to generating a text-free base image with a reserved blank area and overlay editable text using a layout tool.