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Agent skill

Cmux Release Workflow

by manaflow-ai in manaflow-ai/cmux

Runs the cmux release process: gathers per-PR changelog lines since the last tag, bumps the version, guards against a bad tag, then tags and pushes the macOS DMG release.

Custom licenceAuto-check passedDevelopment

Install Cmux Release Workflow

skills CLI
$ npx skills add manaflow-ai/cmux --skill cmux-release -a claude-code

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

GitHub CLI
$ gh skill install manaflow-ai/cmux cmux-release --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/manaflow-ai/cmux.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/cmux-release .claude/skills/cmux-release && 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
cmux-release
GitHub stars
28k
Used in
1 other repo
Token cost
~856 tokens
SKILL.md length
338 words
Files
4 (incl. references)
Skills in repo
22
Repo updated
First seen
Licence
Custom licence

At a glance

Runs the cmux release process: gathers per-PR changelog lines since the last tag, bumps the version, guards against a bad tag, then tags and pushes the macOS DMG release.

  • Cutting a new cmux release with an updated changelog
  • SKILL.md covers Changelog source, Version bumping, Tagging and Release artifacts and secrets, plus 1 more section
  • Calls git; needs APPLE_CERTIFICATE_PASSWORD and ASC_API_KEY_ID
  • Troubleshooting a failed pretag guard before tagging a release

What it does

The preferred /release command determines the new version, defaulting to a minor bump, gathers a changelog line from each PR merged since the last stable tag, updates CHANGELOG.md, runs the version-bump script, commits, runs a pretag guard script, then tags and pushes. Since feature PRs do not edit CHANGELOG.md directly, each PR instead carries a Changelog section in its description with one Added, Changed, Fixed or Removed line in present tense, or the word none; a bundled jq script classifies every PR fetched since the last tag by that convention.

A Changelog line becomes a changelog entry with a PR link, crediting outside contributors by name; a line of none is skipped, as is a PR later undone by a revert within the same range, while a revert of something shipped in an earlier release gets its own flagged line for a human to check. Version bumping runs a script with minor, patch or major modes that updates the app's marketing and build version numbers, where the build number must keep increasing for the app's auto-update mechanism to work. If the pretag guard fails, the fix is to bump the version again, commit, and retry before tagging.

When your agent uses it

  • Cutting a new cmux release with an updated changelog
  • Troubleshooting a failed pretag guard before tagging a release
  • Checking which merged PRs are missing a proper changelog line

Example prompts

  • “Run the cmux release process for a minor version bump.”
  • “The pretag guard failed, help me fix it and retry the release.”
  • “List which PRs since the last tag are missing a Changelog section.”

Requirements

  • git
  • jq
  • The cmux repository's release scripts

What it can do on your machine

Read from SKILL.md and the folder at commit bbb3633. 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

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

  • Network

    No URLs in SKILL.md. Its commands use git, 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 these keys or tokens, usually read from environment variables:

    • APPLE_CERTIFICATE_PASSWORD
    • ASC_API_KEY_ID

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Cmux Release Workflow loads about 856 tokens when it runs, and up to ~2.6k if it reads all its reference files. Until then it costs about 46 tokens; SKILL.md has 338 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~856
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.6k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 338 words (~856 tokens).

“Prefer the /release command. It determines the new version (minor by default), gathers the Changelog line from each PR merged since the last stable tag, updates CHANGELOG.md, runs ./scripts/bump-version.sh, commits, runs ./scripts/release-pretag-guard.sh, then tags and pushes.”

— opening of SKILL.md by manaflow-ai, Custom licence
name
cmux-release

Read the full SKILL.md on GitHub

Files

SKILL.md and 3 other files (references) in skills/cmux-release of manaflow-ai/cmux.

  • SKILL.md
  • agents/openai.yaml
  • references/changelog-lines.jq
  • references/release-checklist.md

Open the folder on GitHubat commit bbb3633

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in manaflow-ai/cmux, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Cmux Release Workflow 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.

Cmux Release Workflow compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cmux Release Workflow this skillmanaflow-ai/cmux28k1 repos~856Automated safety check: PassCustom licence
Simple Englishmoeru-ai/airi50k2 repos~4.6kAutomated safety check: PassMIT
StarRocks Release NotesStarRocks/starrocks12k—~1.9kAutomated safety check: NotesApache-2.0
Cutting A ReleaseTriliumNext/Trilium38k—~3.2kAutomated safety check: PassAGPL-3.0
Mole CLI Release Flowtw93/Mole70k—~2.6kAutomated safety check: PassGPL-3.0
React Router Release Notes Prepremix-run/react-router57k—~1.1kAutomated safety check: PassMIT

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Categories

Questions about Cmux Release Workflow

What does Cmux Release Workflow do?

Runs the cmux release process: gathers per-PR changelog lines since the last tag, bumps the version, guards against a bad tag, then tags and pushes the macOS DMG release. md, runs the version-bump script, commits, runs a pretag guard script, then tags and pushes.md directly, each PR instead carries a Changelog section in its description with one Added, Changed, Fixed or Removed line in present tense, or the word none; a bundled jq script classifies every PR fetched since the last tag by that convention.

When should I use Cmux Release Workflow?

Cmux Release Workflow fits situations like: cutting a new cmux release with an updated changelog; troubleshooting a failed pretag guard before tagging a release; checking which merged PRs are missing a proper changelog line.

How do I install Cmux Release Workflow in Claude Code?

Run `npx skills add manaflow-ai/cmux --skill cmux-release -a claude-code`. Or copy the skill folder (skills/cmux-release in manaflow-ai/cmux) into .claude/skills/cmux-release in your project. Claude Code loads it when a task matches its description.

How do I install Cmux Release Workflow in Codex?

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

Can I use Cmux Release Workflow 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 manaflow-ai/cmux --skill cmux-release -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cmux-release, .gemini/skills/cmux-release, .github/skills/cmux-release and .opencode/skills/cmux-release in your project.

What does Cmux Release Workflow need to run?

Going by SKILL.md and its folder, Cmux Release Workflow needs the command-line tools its instructions call (git) and credentials named APPLE_CERTIFICATE_PASSWORD and ASC_API_KEY_ID. Our summary lists: git; jq; The cmux repository's release scripts.

Does Cmux Release Workflow access the network?

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

Is Cmux Release Workflow 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 Cmux Release Workflow use?

Cmux Release Workflow has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Cmux Release Workflow use?

About 856 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.8k tokens, read only when the agent opens those files.

What are the alternatives to Cmux Release Workflow?

Skills that share tags, products or a category with Cmux Release Workflow: Simple English (moeru-ai/airi, 50k stars), StarRocks Release Notes (StarRocks/starrocks, 12k stars), Cutting A Release (TriliumNext/Trilium, 38k stars) and Mole CLI Release Flow (tw93/Mole, 70k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cmux Release Workflow?

manaflow-ai (a GitHub organization) maintains it in manaflow-ai/cmux, which has 28,076 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on October 10, 2026.

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