Applied AI systems, built in public.

Self-hosted backend for e-commerce research. Paste a product URL or upload a PDF catalog; Claude returns a typed JSON product (title, SKU, brand, price, specs, variants, images, availability) and joins a batch that exports to a multi-sheet Excel workbook with price-history deltas and margin calculations. No per-vendor selectors — text path with vision fallback when extraction is thin or blocked. Stealth Puppeteer, typed error codes, SQLite price history.

• Claude Sonnet 4.6
• Tool use
• Puppeteer
• Node.js
• SQLite
• Vision fallback

Retrieval pipeline over public regulatory documents: ingestion, semantic chunking, embeddings, pgvector indexing, and a Next.js research interface with source-grounded citations. Includes golden datasets, regression testing, and retrieval benchmarks to prevent prompt drift.

• RAG
• Embeddings
• pgvector
• Next.js
• Evals

Model Context Protocol server exposing structured personal data to local AI clients through resources, tools, and prompts. Built with stdio transport, protocol tracing, and automated validation using MCP Inspector.

• MCP
• TypeScript

A production workflow agent built directly on Anthropic tool use. Every decision, tool call, retry, and failure is logged, evaluated, and documented. Target workflow: document processing and action generation.

• Agents
• Tool use
• Evals