trellis.tsx
Trellis
2025live$2,500 · Vibe Coding Challenge · Springfield, MO
AI workflow visibility platform — captures every prompt, response, and behavioral signal so evaluators can review the process behind AI-assisted work, not just the final output.
Story
Students use ChatGPT; instructors have no idea if learning happened. Trellis flips the model: instead of trying to block AI, it captures the full process — prompts, responses, behavioral signals, paste detection, engagement scores — so instructors can review the learning, not just the final submission.
Direct HTTP calls to three model providers (Claude, GPT-4o-mini, Gemini), no SDK lock-in, minimal bundle. Learners pick their model mid-session; every interaction gets proof-chain hashed. A scripted fallback mode runs full demos with zero API keys for offline pitching.
What I built
- 1Built the multi-provider AI adapter with proof-chain hashing across Claude, OpenAI, and Gemini
- 2Designed the behavioral flag engine for real-time prompt-injection / disengagement / help-seeking detection
- 3Implemented the AI assignment generator: PDF or URL → structured assignment with guardrails in seconds
Tech
Next.js 16React 19TypeScriptTailwind v4SupabasePostgreSQLClaudeGPT-4o-miniGeminiSolanaZodVercel