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Dev tools · November 19, 2025

Vibe Prolog

Like a lot of people I got the $250 Claude Code credit and didn't use it up. I decided to try to use it up over the weekend using (mostly) my phone and vibe coded a Prolog interpreter. Now I'm seeing how far I can push it.

Vibe Prolog launched on November 19, 2025 with 44 votes, #478 of 9,796 launches that month and more than 90% of that year's launches.

Visit github.com ↗Vibe Prolog alternativestop 5% of November 2025

In plain words

Vibe Prolog is a Prolog interpreter built with Claude Code, created to explore what an AI-assisted development approach could achieve. The tool is for developers interested in logic programming and experimental coding techniques. It was developed primarily on a phone over a weekend using a Claude Code credit, and the maker continues testing its capabilities and limits.

written from the facts on this page · September 2026

From the sources

Vibe 🎶 Coding 💻 Prolog 🐪. Contribute to nlothian/Vibe-Prolog development by creating an account on GitHub.

In early November 2025, Anthropic had a program giving out $250 credits for Claude Code on the web. It expired on November 18, and on November 15 I still had $220 left. I was working on something else and as a side effect accidently vibe coded a prolog interpretor on my phone over the weekend. I haven't used Prolog for 20 years, but it does seem to be roughly correct. Did I really ask Codex to add more Emojis to this README? Yes I did... > uv run vibeprolog.py ./examples/examples.pl -q "mammal(X)" -v Loading program from './examples/examples.pl'... Successfully loaded './examples/examples.pl' Query: mammal(X). Solution 1: X = dog Solution 2: X = cat > uv run vibeprolog.py…from github.com

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