gwittebolle/claude-carbon · skills/carbon-card/SKILL.md

carbon-card skillA

carbon-card is agent-read markdown (skill) from gwittebolle/claude-carbon: Generate shareable PNG report cards of your Claude Code carbon footprint.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add gwittebolle/claude-carbon/carbon-card@git:20260903.54a9245
Exact content
mdr add gwittebolle/claude-carbon/carbon-card@sha256:c5b98ce3087e242f

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_x7piq3mvzhnkkzwb.svg)](https://markdownregistry.com/a/art_x7piq3mvzhnkkzwb)

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Versions

versioncommittedcommitsizeaudit
git:20260903.54a9245 latest2026-09-03 54a9245 3,865 BA view · diff
git:20260902.8b0a84f2026-09-02 8b0a84f 3,364 BA view · diff
git:20260819.ba1823f2026-08-19 ba1823f 2,854 BA view · diff
git:20260819.47f21ec2026-08-19 47f21ec 2,782 BA view · diff
git:20260818.37745572026-08-18 3774557 2,129 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3865 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

gwittebolle/claude-carbon · 196 stars · license MIT · pushed 2026-09-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_x7piq3mvzhnkkzwb
GET https://markdownregistry.com/api/v1/resolve?ref=gwittebolle/claude-carbon/carbon-card
GET https://markdownregistry.com/api/v1/blob/c5b98ce3087e242f2676c7dc654c7b8f5b2b799c48cc921a20a865c593e40429

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.