Products and tools I have shipped.

Built for deterministic context packaging, token-aware splitting, sensible ignore rules, Git scopes, path safety, and copy-ready output.

• Designed deterministic file discovery and context packaging for real repositories.
• Added token-aware splitting, bounded concurrency, path safety, and Git-aware scopes.
• Published the tool to npm as a reusable product rather than a one-off script.

Node.js · TypeScript · CLI · npm · File system APIs

A full-stack marketplace built around the core instructor-to-student transaction flow.

• Built instructor CRUD for courses, chapters, and lessons with role-based access.
• Integrated Stripe Checkout and webhooks for payment-backed enrollment creation.
• Composed nested Prisma queries for the student learning experience.

Next.js · TypeScript · PostgreSQL · Prisma · Clerk · Stripe

Built around browser lifecycle constraints, YouTube SPA navigation, local aggregation, and interfaces injected into an existing product.

• Handled YouTube SPA navigation and page lifecycle events for watch-session tracking.
• Aggregated local daily activity into weekly summaries within extension storage constraints.
• Injected analytics and focus controls into YouTube without replacing the host interface.

JavaScript · Manifest V3 · Chrome APIs · DOM integration · Local storage