What is this?
stamp-edge is an agent skill that turns any image into a postage-stamp style card: semicircular perforations punched along all four sides, a soft drop shadow, and a true transparent-background PNG by default (holes and border alpha=0), so the result layers onto any background like a sticker; an optional white paper border is available.
Is this a standalone app, or does my AI agent do the work?
It is an agent skill, not an app: you put the whole folder into your agent's skills directory (like ~/.agents/skills/stamp-edge/) and then just tell the agent something like 'turn this image into a stamp edge' to trigger it.
Do I need to install anything besides the skill folder?
Nothing is documented: the README names no requirements and the repo ships no dependency manifest, so besides Python itself there is nothing stated to set up.
Any catch when sharing the stamps it produces?
Yes — chat apps like WeChat re-encode transparent PNGs as JPG when sent as regular chat images, which kills the transparency; send the stamp as a file if you want to keep it.
Will it run on my Windows machine, or is it Mac-only?
The README sets no OS restrictions — it is plain Python, and the repo is tagged for Windows, macOS and Linux, so it should run wherever Python and your agent do.
What is a stamp sheet?
Once you have several stamps, the bundled stampsheet.py script merges them into one collage: equal-width waterfall columns where each stamp fills its column edge to edge with no gaps, and column heights are balanced greedily.
Can I tweak how the stamp looks?
Yes — the parameters sit at the top of the script: margin (white border width between content and the perforated edge), holer 14 (perforation radius), pitch 46 (hole spacing), outerpad 90 (outer padding reserved for the shadow) and shadowalpha 70 (shadow opacity).
What are similar projects?
travel-memory-sticker-card, sharp, photo-abstract-editorial, Compositor, agent-sprite-forge, travel-memory-card-duo, xxg-portrait-rebuild-light, IOPaint
Which topics is it in?
transparency, png, image-manipulation, creative-tools, image-editing, agent-skill, image-processing, agent-skills, ai, python, cross-platform, windows

