Carbon Card

Carbon Card is a Data skill for Claude Code, published by gwittebolle in claude-carbon.

187 stars17 forkson gwittebolle/claude-carbonAdded 2026/09/06+3% in starsRepository updated 2026/09/04

ai-sustainabilityanthropiccarbon-accountingcarbon-emissionscarbon-footprintclaude-codeclaude-plugincliclimatedeveloper-toolsgreen-aigreen-codinggreen-itllmstatuslinesustainability

Install in seconds

Install Carbon Card

Copy Carbon Card into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/gwittebolle/claude-carbon/tree/main/skills/carbon-card ~/.claude/skills/carbon-card

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/gwittebolle/claude-carbon.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/carbon-card/SKILL.md in gwittebolle/claude-carbon
Installs to: ~/.claude/skills/carbon-card
Collection: One of 5 skills cataloged from this repository
Category: Data — 779 skills

What Carbon Card does

Carbon Card generates shareable PNG report cards for your Claude Code carbon footprint. Use it to export the summary card and share the totals and footprint details.

Carbon Card is cataloged under Data on DirSkills. Carbon Card comes from a repository tagged ai-sustainability, anthropic, carbon-accounting, carbon-emissions and carbon-footprint.

Documentation

README

Excerpt

Run the following bash script and present the output to the user. Show the exported file paths so they can share the PNGs, and tell them the folder has been opened in their file manager.

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Carbon Card

What else does gwittebolle publish alongside Carbon Card?
Carbon Card is one of 5 skills that DirSkills catalogs from gwittebolle/claude-carbon, the repository it ships in. Its siblings there include Carbon Badge, Carbon PR and Carbon Report. Each one is a separate skill with its own page in this directory, installs the same way Carbon Card does, and is maintained by gwittebolle in that same repository. The rest of the collection is listed on the gwittebolle/claude-carbon page.
How does Carbon Card compare to other Data skills?
Carbon Card ranks #723 by stars among the 779 Data skills in this catalog. The most-starred ones next to it are Benchmark Methodology, Jupyter Notebook and Solana. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Carbon Card against them. Open each page to compare what they document and how they install.