I developed fix, an automated AST-guided repository audit and multi-agent code repair engine.

Backend Architecture: Built a robust Node.js and Express API with a PostgreSQL database, fully containerized using a multi-stage Docker build. Engineered strict, zero-fallback environment configuration validation using Zod.

AST & Graph Engineering: Implemented syntax-aware code indexing using tree-sitter to parse 12 languages (including JS/TS, Python, Go, and Rust) strictly on syntax boundaries rather than arbitrary character splits. Built millisecond dependency graph queries to provide AI agents with exact call hierarchies and automatically flag risks like unhandled async promises.

Multi-Agent ADE: Orchestrated a multi-terminal Agentic Development Environment (ADE) using opencode and isolated tmux sessions. Designed a workflow where an Orchestrator coordinates Developer and Tester agents, forcing the Tester to run Playwright E2E suites blindly to prevent LLM prompt contamination.

Automated Workflows: Engineered a webhook-driven pipeline that initializes isolated Git worktrees upon payment, autonomously repairs code, applies mechanical sweeps, and delivers clean, test-verified pull requests.