r055y 0.0.4

Open source ArcPy alternative and AI-ready GIS guardrails for spatial analysis without hallucination.

r055y

An open source spatial analysis library and AI-ready GIS toolkit. Built as a drop-in alternative to ArcPy — and as a reliable set of guardrails for AI systems like Claude to perform GIS operations without hallucination.

Install

pip install r055y

Usage

import r055y as r

result = r.intersect(
    inputs=["layer1.shp", "layer2.shp"],
    output="result.gpkg",       # optional — omit to get a GeoDataFrame back
    join_attributes="ALL",      # ALL | NO_FID | ONLY_FID
    output_type="POLYGON"       # POLYGON | LINE | POINT (optional)
)

ArcPy equivalent

ArcPy	r055y
arcpy.analysis.Intersect([lyr1, lyr2], out)	r.intersect([lyr1, lyr2], out)

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Changelog

v0.1.0 — 2026-06-24

• Added intersect() — open source replacement for arcpy.analysis.Intersect
• Supports multiple input layers (GeoDataFrames or file paths)
• Auto-reprojects all inputs to base CRS
• join_attributes options: ALL, NO_FID, ONLY_FID
• output_type filtering: POLYGON, LINE, POINT
• Optional file output (shapefile, GeoPackage, etc.)

v0.0.1 — 2026-06-24

• Initial release