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Agent skill

Backport

by vexxhost in vexxhost/atmosphere

Backport a merged PR to one or more stable branches. An agent skill from vexxhost/atmosphere.

No licenceAuto-check passedDevelopment

Install Backport

skills CLI
$ npx skills add vexxhost/atmosphere --skill backport -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install vexxhost/atmosphere backport --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/vexxhost/atmosphere.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/backport .claude/skills/backport && rm -rf skills-src

Use ~/.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/

Facts

Skill name
backport
GitHub stars
172
Token cost
~1.3k tokens
SKILL.md length
547 words
Files
1
Skills in repo
3
Repo updated
First seen
Licence
None found

At a glance

Backport a merged PR to one or more stable branches. An agent skill from vexxhost/atmosphere.

  • Works in 8 steps: Understand the change → Determine target branches → Process branches one by one (cascade… → …
  • Asked to backport a PR
  • SKILL.md covers Invocation, Workflow and Reporting
  • Calls git and gh

What it does

Backport is an agent skill from vexxhost/atmosphere. Backport a merged PR to one or more stable branches. Handles cherry-pick conflict resolution and creates individual PRs per branch. Can be invoked with a PR number and optional list of target branches, or will auto-detect target branches from the PR's backport labels. Use when asked to backport a PR, fix a failed automated backport, or manually port changes to stable branches.

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development. The repository describes itself as: Simple & easy private cloud platform featuring VMs, Kubernetes & bare-metal.

When your agent uses it

  • Asked to backport a PR
  • Fix a failed automated backport
  • Manually port changes to stable branches

Example prompts

  • “/backport”

Workflow steps

8 steps, taken from the step headings in SKILL.md.

  1. Understand the change
  2. Determine target branches
  3. Process branches one by one (cascade strategy)
  4. Assess compatibility before applying
  5. Resolve conflicts
  6. Validate
  7. Push and open a PR
  8. Clean up

What it can do on your machine

Read from SKILL.md and the folder at commit af363d1. 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:

    • git
    • gh

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git and gh, which can reach the network depending on how they are called.

    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

Backport loads about 1.3k tokens when it runs. Until then it costs about 97 tokens; SKILL.md has 547 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~97
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 547 words (~1,319 tokens).

“This skill can be triggered in two ways:”

— opening of SKILL.md by vexxhost
name
backport

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/backport of vexxhost/atmosphere.

Open the folder on GitHubat commit af363d1

Compare with similar skills

Backport 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.

Backport compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Backport this skillvexxhost/atmosphere172—~1.3kAutomated safety check: PassNone
Vercel Composition Patternssupabase/supabase111k58 repos~726Automated safety check: PassMIT
Finishing a Development Branchobra/superpowers297k5 repos~1.9kAutomated safety check: PassMIT
Typescript Advanced Typesrolling-scopes/rsschool-app10k25 repos~4.2kAutomated safety check: PassMPL-2.0
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT

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  • Bump Openstack Image

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Categories

Questions about Backport

What does Backport do?

Backport a merged PR to one or more stable branches. An agent skill from vexxhost/atmosphere. Backport is an agent skill from vexxhost/atmosphere. Backport a merged PR to one or more stable branches.

When should I use Backport?

Backport fits situations like: asked to backport a PR; fix a failed automated backport; manually port changes to stable branches.

How do I install Backport in Claude Code?

Run `npx skills add vexxhost/atmosphere --skill backport -a claude-code`. Or copy the skill folder (.agents/skills/backport in vexxhost/atmosphere) into .claude/skills/backport in your project. Claude Code loads it when a task matches its description.

How do I install Backport in Codex?

Run `npx skills add vexxhost/atmosphere --skill backport -a codex`. Or copy the skill folder (.agents/skills/backport in vexxhost/atmosphere) into .agents/skills/backport in your project. Codex loads it when a task matches its description.

Can I use Backport 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 vexxhost/atmosphere --skill backport -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/backport, .gemini/skills/backport, .github/skills/backport and .opencode/skills/backport in your project.

What does Backport need to run?

Going by SKILL.md and its folder, Backport needs the command-line tools its instructions call (git and gh).

Does Backport access the network?

SKILL.md contains no URLs. Its commands use git and gh, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Backport 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 Backport use?

No licence was found for Backport or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Backport use?

About 1.3k tokens (SKILL.md is roughly 5.3k 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 Backport?

Skills that share tags, products or a category with Backport: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 297k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Backport?

vexxhost (a GitHub organization) maintains it in vexxhost/atmosphere, which has 172 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 9, 2026.

Source: vexxhost/atmosphere on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.