SadhanAI
A coding-practice platform where AI generates problems, test cases, and assignments from a single prompt — built solo, end-to-end.
sadhanai.com ↗01
At a glance
1
developer
single prompt
→ full problem
Org
model
Live
in production
02
How it works
01PromptUser describes desired problem in natural language.
02PlanLangGraph agent decomposes into spec + constraints.
03GenerateSynthesises problem statement, examples, test cases, edge cases.
04ServeStores in Postgres + pgvector, exposes via Next.js UI.
03
Architecture
04
Features
Problem genLangGraph agentic workflow synthesises full problems + test cases from a single prompt.
Debug modeAI emits intentionally broken code; users diagnose and fix it.
Live assistanceReal-time coding help while solving, post-submission code analysis after.
BundlesOne-prompt problem bundles. Generate and share with friends.
Org modelTeams → batches → instructors → assignments. Admins see time-per-student, completion rates, progress.
AuthBetter Auth + Google OAuth for secure user management.
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Screenshots
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Full stack
Next.jsFastAPILangGraphPostgreSQLpgvectorBetter AuthGoogle OAuthDockerGCP
next project →02Public-sector persona RAG↗