Doc AURA

Doc AURA is a living-documentation platform that turns any GitHub repository into self-maintaining technical documentation. It solves a problem every fast-moving engineering team has: documentation rots the moment a PR lands. Onboarding slows, knowledge becomes tribal, and developers stop trusting their own docs. Most tools generate docs once — Doc AURA maintains them continuously, treating documentation as a byproduct of development rather than a separate task. The system works in two phases. On initial setup, a Repo Analyzer parses the codebase with Tree-sitter to build a structured code graph of modules, APIs, and dependencies, while a Doc Generator produces high-signal artifacts — Project Overview, Architecture Overview, API Reference, Key Workflows, and Usage Examples. On every subsequent PR, a Change Detector maps the diff to affected components, a Doc Sync Engine updates only the impacted sections (no full regeneration), and a Reviewer Agent posts PR comments flagging undocumented changes or behavioral mismatches. The headline feature is the documentation diff — side-by-side added/modified/removed docs reviewed alongside code — paired with an interactive code graph built on React Flow that highlights blast radius across the system. The stack is FastAPI + Python on the backend, LLMs orchestrated via LangGraph for agent workflows, Tree-sitter for AST-level parsing, React + React Flow on the frontend, and JSON (with optional SQLite) for structured doc storage. Authentication runs through GitHub OAuth plus a GitHub App for repo access and PR webhooks. The differentiator is positioning: not a doc generator, but a continuous doc system, the value lives in keeping documentation correct over time, surfaced through doc diffs and impact-aware graph highlights at every PR.