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Green Coding Skills — Agent Skills + MCP Tools

A collection of Agent Skills and MCP tools that audit software projects for environmental sustainability, accessibility, and quality, then implement measurable improvements.

Commands

Command

What it does

/gc-setup

Full 9-phase sustainability audit (SCI, WSG, a11y, performance, testing, baselines)

/gc-dev

Daily development companion — green check before commit, feature planning, PR review

/gc-measure-sci

Measure SCI carbon intensity for a specific operation or endpoint

/gc-check-sustainability

Quick sustainability check (WSG, green hosting, code patterns)

/gc-estimate-emissions

Estimate CO2 emissions per page view or across a sitemap

/gc-mobile-ios

iOS green audit — energy profiling, Creedengo iOS rules, SCI measurement

/gc-mobile-android

Android green audit — battery optimization, Creedengo Android rules, SCI measurement

/gc-verify

Adversarial verification via Chain-of-Verification (CoVe) — runs automatically after each skill

What /gc-setup covers

When activated, the skill guides your AI agent through a 9-phase workflow:

Explore — understand the codebase, stack, and architecture

Energy & Carbon (SCI) — measure carbon intensity per operation using the Green Software Foundation SCI formula

WSG Compliance — evaluate against all 80 W3C Web Sustainability Guidelines 1.0

Accessibility — set up Lighthouse CI auditing with WCAG 2.1 AA thresholds

Performance & Resource Efficiency — bundle size, lazy loading, caching, fonts, images

Testing & Quality — test infrastructure, coverage, critical path tests

Prioritize — rank actions by impact x feasibility (P0-P3)

Establish Baselines — measurable targets for every dimension

Sustainability-Aware CLAUDE.md — encode sustainability into the development workflow

Standards and tools

Area

Standard / Tool

Carbon measurement

SCI (Software Carbon Intensity)

SCI profiling (JS/TS)

SCI Profiler — zero-dependency TypeScript library

SCI profiling (PHP)

SCI Profiler PHP — zero-code-changes, framework-agnostic

Page emissions

Sustainable Web Design (SWD) v4 model

Web sustainability

W3C WSG 1.0 (80 guidelines)

Accessibility

WCAG 2.1 AA via Lighthouse CI

Performance

Lighthouse performance scores, bundle budgets

Green patterns

Green Software Foundation patterns catalog

Static analysis

Creedengo green code rules

iOS energy rules

Creedengo iOS Swift energy patterns

Android energy

Android Battery Optimization + Android Vitals

iOS energy profiling

Xcode Instruments Energy Log + MetricKit

CI energy tracking

eco-ci-energy-estimation for pipeline measurement

Cloud carbon

Cloud Carbon Footprint

Report verification

Chain-of-Verification (CoVe) — Factored + Revise variant (Dhuliawala et al., 2023)

Web best-practices (complement)

The Website Specification — environmental subset (performance, resilience, agent-readiness, privacy) + security as a separate governance dimension. Complement only; WSG and Green Patterns remain authoritative, and security never feeds the environmental score

Green Coding Skills — Agent Skills + MCP Tools

A collection of Agent Skills and MCP tools that audit software projects for environmental sustainability, accessibility, and quality, then implement measurable improvements.

Commands

Command	What it does
`/gc-setup`	Full 9-phase sustainability audit (SCI, WSG, a11y, performance, testing, baselines)
`/gc-dev`	Daily development companion — green check before commit, feature planning, PR review
`/gc-measure-sci`	Measure SCI carbon intensity for a specific operation or endpoint
`/gc-check-sustainability`	Quick sustainability check (WSG, green hosting, code patterns)
`/gc-estimate-emissions`	Estimate CO2 emissions per page view or across a sitemap
`/gc-mobile-ios`	iOS green audit — energy profiling, Creedengo iOS rules, SCI measurement
`/gc-mobile-android`	Android green audit — battery optimization, Creedengo Android rules, SCI measurement
`/gc-verify`	Adversarial verification via Chain-of-Verification (CoVe) — runs automatically after each skill

What `/gc-setup` covers

When activated, the skill guides your AI agent through a 9-phase workflow:

Explore — understand the codebase, stack, and architecture
Energy & Carbon (SCI) — measure carbon intensity per operation using the Green Software Foundation SCI formula
WSG Compliance — evaluate against all 80 W3C Web Sustainability Guidelines 1.0
Accessibility — set up Lighthouse CI auditing with WCAG 2.1 AA thresholds
Performance & Resource Efficiency — bundle size, lazy loading, caching, fonts, images
Testing & Quality — test infrastructure, coverage, critical path tests
Prioritize — rank actions by impact x feasibility (P0-P3)
Establish Baselines — measurable targets for every dimension
Sustainability-Aware CLAUDE.md — encode sustainability into the development workflow

Standards and tools

Area	Standard / Tool
Carbon measurement	SCI (Software Carbon Intensity)
SCI profiling (JS/TS)	SCI Profiler — zero-dependency TypeScript library
SCI profiling (PHP)	SCI Profiler PHP — zero-code-changes, framework-agnostic
Page emissions	Sustainable Web Design (SWD) v4 model
Web sustainability	W3C WSG 1.0 (80 guidelines)
Accessibility	WCAG 2.1 AA via Lighthouse CI
Performance	Lighthouse performance scores, bundle budgets
Green patterns	Green Software Foundation patterns catalog
Static analysis	Creedengo green code rules
iOS energy rules	Creedengo iOS Swift energy patterns
Android energy	Android Battery Optimization + Android Vitals
iOS energy profiling	Xcode Instruments Energy Log + MetricKit
CI energy tracking	eco-ci-energy-estimation for pipeline measurement
Cloud carbon	Cloud Carbon Footprint
Report verification	Chain-of-Verification (CoVe) — Factored + Revise variant (Dhuliawala et al., 2023)
Web best-practices (complement)	The Website Specification — environmental subset (performance, resilience, agent-readiness, privacy) + security as a separate governance dimension. Complement only; WSG and Green Patterns remain authoritative, and security never feeds the environmental score

sustainable-code-skill-setup

Popularity

What's Inside

Confidence

README

Green Coding Skills — Agent Skills + MCP Tools

Commands

What `/gc-setup` covers

Standards and tools

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Green Coding Skills — Agent Skills + MCP Tools

Commands

What `/gc-setup` covers

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Popularity

What's Inside

Confidence

README

Green Coding Skills — Agent Skills + MCP Tools

Commands

What /gc-setup covers

Standards and tools

Similar Plugins

ai-accessibility

lighthouse-runner

web-quality-skills

awos

accessibility-test-scanner

performance-benchmarker

More by fullo

adversarial-verify

writing-assistant

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Green Coding Skills — Agent Skills + MCP Tools

Commands

What /gc-setup covers

Standards and tools

Popularity

Health & Quality

More by fullo

adversarial-verify

writing-assistant

adversarial-thinking

sustainable-manager

Similar Plugins

ai-accessibility

lighthouse-runner

web-quality-skills

awos

accessibility-test-scanner

performance-benchmarker

What `/gc-setup` covers

What `/gc-setup` covers