epd-compare

Name: epd-compare
Availability: InStock
Author: robikscube

Compare EPD records by GWP A1-A3 and output ranked JSON results.

Updated Jun 16, 2026

Search Tags:#sustainability #construction #environmental-impact #product-comparison #epd #leed #gwp

Ready to run

npx skills add https://github.com/robikscube/SJ-skills-sandbox --skill epd-compare-robikscube

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: epd-compare
Source: https://github.com/robikscube/SJ-skills-sandbox/tree/main/Skill-List/alpaca-epd/epd-compare
Command: npx skills add https://github.com/robikscube/SJ-skills-sandbox --skill epd-compare-robikscube

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

Manually comparing multiple Environmental Product Declaration (EPD) records to identify the most sustainable building material is time-consuming and prone to human error when cross-referencing GWP values, declared units, and LEED eligibility criteria.

Core Features & Use Cases

Comparability Validation: Automatically verifies that EPD records share matching declared units, system boundaries, and other critical criteria to avoid misleading comparisons.
GWP Ranking & Delta Calculation: Ranks products by their A1-A3 Global Warming Potential (GWP) and calculates percentage differences from the lowest-impact option.
Use Case: Compare concrete EPDs from different manufacturers to select the lowest-carbon option for a LEED-certified construction project.

Quick Start

Use the epd-compare skill to compare the EPD records in your provided input file and return a ranked list of products sorted by GWP A1-A3 impact.

Frequently Asked Questions about epd-compare

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I compare EPDs to find the lowest-carbon building material?▼

The Skill compares EPD records by validating declared units, system boundaries, and PCR versions, then ranks materials by A1-A3 Global Warming Potential (GWP) and calculates percentage deltas from the lowest-impact option.

What makes EPD comparisons misleading without comparability validation?▼

Comparing EPDs without validation risks inaccurate sustainability assessments. The Skill checks for matching declared units, system boundaries, and PCR versions before ranking materials by A1-A3 GWP to prevent misleading cross-references.

Can I use this to validate LEED eligibility for construction products?▼

Yes, the Skill validates LEED eligibility by cross-referencing EPD records for matching declared units, system boundaries, and PCR versions before ranking materials by A1-A3 GWP for construction projects.

What input formats are supported for EPD data comparison?▼

The Skill accepts CSV, JSON, and inline JSON input formats containing EPD records, processing them to output structured JSON comparison results with ranked products and percentage GWP deltas.

Do I need to install third-party Python dependencies to run EPD comparisons?▼

No third-party Python dependencies are required. The Skill uses standard scripts to process EPD records, calculate A1-A3 GWP rankings, and output structured JSON comparison results without external libraries.