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Add a share-preview image (og:image) served at /og.png on the API host - #9
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src/arcade/og.png is a 1200x630 card (the page's name, DESCRIPTION and the play domain, in its dark colours). The landing page now carries og:image and twitter:image at https://<domain>/og.png with type, width, height and alt, and a summary_large_image Twitter card. GET /og.png is answered on the API host only, like /robots.txt, so a game's own /og.png is never shadowed. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BZQMN1M5hQKfUpPwDkMjqd
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Summary
The landing page at play.danielstephenson.dev got share-preview text tags in #8, but no image, because the repository held none. This adds one.
src/arcade/og.png: a 1200×630 card showing the page's name ("Play"), the existingDESCRIPTIONand the domain. It uses the landing page's dark-scheme tokens (#121418background,#7d98ffaccent). It is about 15 KB. No artwork is invented.landing.py:OG_IMAGE_PATH,OG_IMAGE_WIDTH/HEIGHT,OG_IMAGE_ALT, andogImage(), which reads the bytes once. The page now carriesog:imageandtwitter:imageathttps://<domain>/og.png, plusog:image:type/width/height/altandtwitter:image:alt.twitter:cardis nowsummary_large_image.server.py:GET/HEAD /og.pngserves the PNG asimage/png(Cache-Control: public, max-age=86400) on the API host only, next to/robots.txt. A game's host never answers it, so a static game's own/og.pngis not shadowed.img-src data:) is unchanged.Dockerfilealready copiessrc/, so the PNG ships in the image.og:image. New tests check the PNG's IHDR size against the constants (and that it is under 150 KB), that the API host serves the bytes forGETandHEAD, and that on game hosts/og.pngis the game's own file or a 404.[Unreleased]and the README endpoint table updated.The card's text names
play.danielstephenson.dev, the production domain. The tag URLs follow the configured domain.Test plan
python -m pytest: 145 passedPYTHONPATH=src python -m arcade check-registry examples/games.yamldrafted by Claude on behalf of Daniel Stephenson
🤖 Generated with Claude Code
https://claude.ai/code/session_01BZQMN1M5hQKfUpPwDkMjqd