Branches
redis/RedisInsight
Create and name git branches following project conventions. An agent skill from redis/RedisInsight.
Post the development footprint of the current branch as a sticky PR comment
MITAuto-check passed
Install Carbon PR
$ npx skills add gwittebolle/claude-carbon --skill carbon-pr -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install gwittebolle/claude-carbon carbon-pr --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/gwittebolle/claude-carbon.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/carbon-pr .claude/skills/carbon-pr && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "carbon-pr" agent skill from https://github.com/gwittebolle/claude-carbon/tree/main/skills/carbon-pr into .claude/skills/carbon-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "carbon-pr", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/gwittebolle/claude-carbon/tree/main/skills/carbon-prType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add gwittebolle/claude-carbon --skill carbon-pr -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install gwittebolle/claude-carbon carbon-pr --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gwittebolle/claude-carbon.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/carbon-pr .agents/skills/carbon-pr && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "carbon-pr" agent skill from https://github.com/gwittebolle/claude-carbon/tree/main/skills/carbon-pr into .agents/skills/carbon-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "carbon-pr", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add gwittebolle/claude-carbon --skill carbon-pr -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install gwittebolle/claude-carbon carbon-pr --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gwittebolle/claude-carbon.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/carbon-pr .cursor/skills/carbon-pr && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "carbon-pr" agent skill from https://github.com/gwittebolle/claude-carbon/tree/main/skills/carbon-pr into .cursor/skills/carbon-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "carbon-pr", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/gwittebolle/claude-carbon.git --path skills/carbon-pr--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add gwittebolle/claude-carbon --skill carbon-pr -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install gwittebolle/claude-carbon carbon-pr --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gwittebolle/claude-carbon.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/carbon-pr .gemini/skills/carbon-pr && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "carbon-pr" agent skill from https://github.com/gwittebolle/claude-carbon/tree/main/skills/carbon-pr into .gemini/skills/carbon-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "carbon-pr", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install gwittebolle/claude-carbon carbon-prInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add gwittebolle/claude-carbon --skill carbon-pr -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/gwittebolle/claude-carbon.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/carbon-pr .github/skills/carbon-pr && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "carbon-pr" agent skill from https://github.com/gwittebolle/claude-carbon/tree/main/skills/carbon-pr into .github/skills/carbon-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "carbon-pr", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add gwittebolle/claude-carbon --skill carbon-pr -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install gwittebolle/claude-carbon carbon-pr --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gwittebolle/claude-carbon.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/carbon-pr .opencode/skills/carbon-pr && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "carbon-pr" agent skill from https://github.com/gwittebolle/claude-carbon/tree/main/skills/carbon-pr into .opencode/skills/carbon-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "carbon-pr", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
carbon-pr- GitHub stars
- 211
- Token cost
- ~745 tokens
- SKILL.md length
- 138 words
- Files
- 1
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- MIT
At a glance
Post the development footprint of the current branch as a sticky PR comment
- Calls jq and bash
What it does
Carbon PR is an agent skill from gwittebolle/claude-carbon. Post the development footprint of the current branch as a sticky PR comment
Its SKILL.md is about 750 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: claude-carbon: track the carbon footprint of your Claude Code sessions. The licence is MIT.
Example prompts
- “/carbon-pr”
What it can do on your machine
Read from SKILL.md and the folder at commit d7313ff. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
jqbash
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Carbon PR loads about 745 tokens when it runs. Until then it costs about 21 tokens; SKILL.md has 138 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from gwittebolle/claude-carbon at commit d7313ff, republished under its MIT licence (© gwittebolle). 138 words, ~745 tokens.
Download SKILL.mdSave it as
.claude/skills/carbon-pr/SKILL.md (or your agent's skills folder).- name
- carbon-pr
- description
- Post the development footprint of the current branch as a sticky PR comment
Run the following bash script from the repository the PR belongs to, and present the output to the user.
#!/usr/bin/env bash
# Locate the install wired into the status line (honours CLAUDE_CONFIG_DIR),
# then fall back to CLAUDE_PLUGIN_ROOT / CLAUDE_CARBON_DIR / the default path.
# Windows (Git Bash): CLAUDE_* variables and the paths stored in settings.json can
# arrive in the native "C:\Users\..." spelling, which bash cannot open. cygpath
# ships with Git for Windows; everywhere else this is the identity function.
ccp() {
case "${OSTYPE:-}" in msys*|cygwin*) ;; *) printf '%s' "$1"; return 0 ;; esac
case "$1" in
[A-Za-z]:[\\/]*|*\\*) cygpath -u "$1" 2>/dev/null || printf '%s' "$1" ;;
*) printf '%s' "$1" ;;
esac
}
CFG="$(ccp "${CLAUDE_CONFIG_DIR:-$HOME/.claude}")"
REPO_DIR=""
if command -v jq >/dev/null 2>&1 && [ -f "$CFG/settings.json" ]; then
SL_CMD="$(jq -r '.statusLine.command // empty' "$CFG/settings.json" 2>/dev/null)"
# statusLine.command stores a shell-escaped path: expand ~ and unescape spaces
SL_CMD="${SL_CMD//\\ / }"; SL_CMD="${SL_CMD/#\~/$HOME}"; SL_CMD="$(ccp "$SL_CMD")"
[ -n "$SL_CMD" ] && [ -f "$SL_CMD" ] && REPO_DIR="$(cd "$(dirname "$SL_CMD")/.." 2>/dev/null && pwd)"
fi
[ -z "$REPO_DIR" ] && [ -n "${CLAUDE_PLUGIN_ROOT:-}" ] && REPO_DIR="$(ccp "$CLAUDE_PLUGIN_ROOT")"
[ -z "$REPO_DIR" ] && [ -n "${CLAUDE_CARBON_DIR:-}" ] && REPO_DIR="$(ccp "$CLAUDE_CARBON_DIR")"
if [ -z "$REPO_DIR" ]; then
# Pure marketplace installs reach here: no statusLine.command in settings.json and
# no CLAUDE_PLUGIN_ROOT in a skill's bash env. Pick the newest cached plugin copy,
# keeping only candidates that ship the PR report script.
CACHE_LATEST=""
for D in "$CFG/plugins/cache"/*/claude-carbon/*/; do
[ -f "${D}scripts/generate-pr-report.sh" ] || continue
if [ -z "$CACHE_LATEST" ] || [ "$(printf '%s\n%s\n' "$CACHE_LATEST" "$D" | sort -V | tail -1)" = "$D" ]; then
CACHE_LATEST="$D"
fi
done
[ -n "$CACHE_LATEST" ] && REPO_DIR="${CACHE_LATEST%/}"
fi
[ -z "$REPO_DIR" ] && REPO_DIR="$HOME/code/claude-carbon"
bash "$REPO_DIR/scripts/generate-pr-report.sh"The script sums the local Claude Code sessions recorded for the current branch of the current project and posts (or updates in place) one sticky comment on the branch's open PR, through the user's own gh auth. Report its final line to the user as printed; never recompute or reformat the numbers.
If it reports no sessions for the branch, tell the user that only sessions recorded since the git_branch column exists carry a branch, and that scripts/backfill.sh repairs older rows while their transcripts are still on disk. If it reports no open PR, suggest pushing the branch and opening one first, or passing --pr <number>. If the script itself is missing (an install that predates it), suggest /carbon-update.
© gwittebolle, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/carbon-pr of gwittebolle/claude-carbon.
Open the folder on GitHubat commit d7313ff
Compare with similar skills
Carbon PR next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Carbon PR this skillgwittebolle/claude-carbon | 211 | — | ~745 | Automated safety check: Pass | MIT | |
| Branchesredis/RedisInsight | 8.9k | — | ~409 | Automated safety check: Pass | Custom licence | |
| Conventional Branchgithub/awesome-copilot | 40k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Finishing a Development Branchobra/superpowers | 297k | 5 repos | ~1.9k | Automated safety check: Pass | MIT | |
| Carbone AutomationComposioHQ/awesome-claude-skills | 77k | 3 repos | ~730 | Automated safety check: Pass | None | |
| Git Branch Namingmakeplane/plane | 61k | — | ~594 | Automated safety check: Pass | AGPL-3.0 |
Similar skills
- Official
- Official
Conventional Branch
github/awesome-copilot
Create Git branches following the Conventional Branch specification (feature/, bugfix/, hotfix/, release/, chore/).
Finishing a Development Branch
obra/superpowers
Walks the last step of a branch: confirm tests pass, detect the git environment, ask how to integrate, carry out your choice and clean up the worktree.
Carbone Automation
ComposioHQ/awesome-claude-skills
Automate Carbone tasks via Rube MCP (Composio). An agent skill from ComposioHQ/awesome-claude-skills.
Git Branch Naming
makeplane/plane
Names a new Git branch with a type prefix, the lowercased work item ID and a short kebab-case description, so the ID can be extracted later from the branch name.
Marine Carbonate Chemistry
K-Dense-AI/scientific-agent-skills
Solves seawater carbonate chemistry with PyCO2SYS for chemical oceanography, ocean acidification, and marine carbon-cycle research.
More from gwittebolle/claude-carbon
Carbon Badge
gwittebolle/claude-carbon
Generate a shields.io badge of your Claude Code carbon footprint for your READMEs
Carbon Card
gwittebolle/claude-carbon
Generate shareable PNG report cards of your Claude Code carbon footprint
Carbon Report
gwittebolle/claude-carbon
Display CO2 emissions report for Claude Code sessions. An agent skill from gwittebolle/claude-carbon.
Questions about Carbon PR
What does Carbon PR do?
Post the development footprint of the current branch as a sticky PR comment. Carbon PR is an agent skill from gwittebolle/claude-carbon.
How do I install Carbon PR in Claude Code?
Run `npx skills add gwittebolle/claude-carbon --skill carbon-pr -a claude-code`. Or copy the skill folder (skills/carbon-pr in gwittebolle/claude-carbon) into .claude/skills/carbon-pr in your project. Claude Code loads it when a task matches its description.
How do I install Carbon PR in Codex?
Run `npx skills add gwittebolle/claude-carbon --skill carbon-pr -a codex`. Or copy the skill folder (skills/carbon-pr in gwittebolle/claude-carbon) into .agents/skills/carbon-pr in your project. Codex loads it when a task matches its description.
Can I use Carbon PR in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add gwittebolle/claude-carbon --skill carbon-pr -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/carbon-pr, .gemini/skills/carbon-pr, .github/skills/carbon-pr and .opencode/skills/carbon-pr in your project.
What does Carbon PR need to run?
Going by SKILL.md and its folder, Carbon PR needs the command-line tools its instructions call (jq and bash).
Does Carbon PR access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Carbon PR safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Carbon PR use?
Carbon PR is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Carbon PR use?
About 745 tokens (SKILL.md is roughly 3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Carbon PR?
Skills that share tags, products or a category with Carbon PR: Branches (redis/RedisInsight, 8.9k stars), Conventional Branch (github/awesome-copilot, 40k stars), Finishing a Development Branch (obra/superpowers, 297k stars) and Carbone Automation (ComposioHQ/awesome-claude-skills, 77k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Carbon PR?
gwittebolle (a GitHub user) maintains it in gwittebolle/claude-carbon, which has 211 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on October 9, 2026.
Source: gwittebolle/claude-carbon on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.