Herman Chan

Claude Code skills suite

Markdown-defined skills plus Python tools that compress repetitive underwriting tasks into one prompt.

A collection of Claude Code skills I built to compress the most repetitive parts of underwriting a deal — one-page deal summary, financial model, rent comps, rent roll, T-12. Each skill is a Markdown file describing the steps and a folder of Python tools that do the deterministic work. The split is the whole point: the LLM handles judgment and orchestration, the Python handles arithmetic, file I/O, and anything that needs to be reproducible. Output is a finished workbook or a populated cell range, ready to drop into the deal folder. Built originally to save my own time; now used to standardize outputs across the team.

Stack: Claude Code, Python (openpyxl, pandas, requests), Anthropic API.

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