Site Planning

The problem

Early-stage site analysis requires pulling data from dozens of sources — NOAA for climate, Census Bureau for demographics, MTA for transit, Landmarks Preservation for historic districts, PLUTO for zoning. Architects and developers spend days assembling this into a coherent picture before design can even begin.

How it works

Four research skills that each investigate a different dimension of a site. Each skill searches authoritative public data sources, synthesizes findings, and outputs a structured markdown report. /site-due-diligence-nyc runs all four plus zoning in sequence.

Every skill takes a single input — an address — then researches autonomously without interrupting.

Skills

Skill	What it covers
/environmental-analysis	Climate, precipitation, wind patterns, sun angles, flood zones, seismic risk, soil, topography
/mobility-analysis	Transit routes, walk/bike/transit scores, major roads, airport access, pedestrian infrastructure
/demographics-analysis	Population, income, age distribution, housing market, employment
/history	Adjacent uses, architectural character, historic districts, landmarks, planned development (Historic Analysis)
/site-due-diligence-nyc	Runs all four skills above plus zoning in sequence

Data sources

Skill	Primary sources
Environmental	NOAA, USGS, EPA, NWS, NREL
Mobility	MTA, DOT, Walk Score, FAA, USDOT
Demographics	Census Bureau, BLS, HUD, NYC Open Data
Neighborhood History	NYC LPC, National Register, DCP, Library of Congress

Output

Each skill produces a structured markdown report with a Key Metrics summary table followed by detailed sections. The full pipeline produces 4 separate reports from a single address.

Install

Claude Desktop:

1. Open Customize → Browse plugins
2. Click + → Add marketplace from GitHub
3. Enter AlpacaLabsLLC/skills-for-architects
4. Install the Site Planning plugin

Claude Code (terminal):

claude plugin marketplace add AlpacaLabsLLC/skills-for-architects
claude plugin install 01-site-planning@skills-for-architects

Manual:

git clone https://github.com/AlpacaLabsLLC/skills-for-architects.git
ln -s $(pwd)/skills-for-architects/plugins/01-site-planning/skills/environmental-analysis ~/.claude/skills/environmental-analysis