muggle-ai-works: Skill for Claude Code

.claude/skills/muggle-works-npm-release/SKILL.md

muggle-works-npm-release is a skill for Claude Code from multiplex-ai/muggle-ai-works. It costs 83 tokens per session (3,114 once invoked), scanned A, original, Apache-2.0.

A release workflow for publishing the @muggleai/works package to npm, the JavaScript package registry, through a pull request and GitHub Actions.

In plain words
What is it for?
It is for preparing, checking, reviewing, merging, and triggering package releases.
Why use it?
It guides release version choices and verification while avoiding a direct local npm publish.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions .claude-plugin; names the AskUserQuestion tool.

This is multiplex-ai/muggle-ai-works's own configuration. It tells Claude Code how to work on muggle-ai-works itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything muggle-ai-works configures →

Reuse

Borrowing it

Nothing to install: this file belongs to multiplex-ai/muggle-ai-works. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/multiplex-ai/muggle-ai-works/master/.claude/skills/muggle-works-npm-release/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/multiplex-ai/muggle-ai-works

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

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README.md
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Your own site
<a href="https://agentmods.dev/skills/multiplex-ai/muggle-ai-works/muggle-works-npm-release"><img src="https://agentmods.dev/badge/skills/multiplex-ai/muggle-ai-works/muggle-works-npm-release/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/multiplex-ai/muggle-ai-works/muggle-works-npm-release"><img src="https://agentmods.dev/badge/skills/multiplex-ai/muggle-ai-works/muggle-works-npm-release.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,114 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00083 $0.03114
Opus 5.5 $0.00033 $0.01246
Sonnet 5.5 $0.00017 $0.00623
Haiku 4.5 $0.00008 $0.00311

Measured 3d ago against content hash 7bc3034ae813, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

muggle-works-npm-release scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/muggle-works-npm-release/SKILL.md · 226 lines

How it starts

The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Muggle Test Works — npm release (single playbook)

Maintainer-only. Lives at .claude/skills/ (mirrored to .cursor/skills/), not in the published plugin (plugin/skills/). Invokable as /mrelease while working in this repo; run pnpm run link:maintainer-skills to invoke it from any project.

Repo: multiplex-ai/muggle-ai-works. Workflow: .github/workflows/publish-works-to-npm.yml (“Publish Works to npm”). Never run local npm publish (OIDC trusted publishing in CI).


Phase 1 — Ask bump type (do this first)

Stop until the user answers.

Prefer AskUserQuestion with exactly these three options: major, minor, patch (fix). If the environment has no structured question tool, ask the same in plain text:

Is this release a major, minor, or patch (fix)?

You may recommend a bump from commit subjects (e.g. feat! / breaking → major, feat → minor, fix / chore → patch) but do not choose for them. Do not edit files yet.


Phase 2 — Sync, surface state, empty-release gate

Run from muggle-ai-works:

git checkout master && git pull --ff-only && git fetch --tags

Show what is shipping:

node -e 'console.log("master package.json:", require("./package.json").version)'
npm view @muggleai/works version 2>&1 | sed 's/^/npm latest: /'

Commits since the last release commit (stop if there is nothing to ship):

LAST_RELEASE_SHA=$(git log --grep='chore(release)' --format='%H' -1)
NON_SHIPPING=(':(exclude)internal/' ':(exclude)docs/' ':(exclude)ops/' ':(exclude)test/' ':(exclude).github/' ':(exclude).claude/' ':(exclude).cursor/' ':(exclude)README.md' ':(exclude)eslint.config.js' ':(exclude)vitest.config.ts')
git log --oneline "$LAST_RELEASE_SHA..HEAD"
git diff --name-only "$LAST_RELEASE_SHA..HEAD" -- . "${NON_SHIPPING[@]}"

The log is for reading; the diff decides. NON_SHIPPING drops paths that cannot reach the npm tarball — the shipping surface is package.json → files, plus the sources dist/ is built from (src/, packages/, tsup.config.ts) and the lockfile pinning what gets bundled. The gate is a diff rather than a pathspec'd git log because path filtering makes git log simplify merge commits out of the range, which a tree-to-tree diff cannot do.

Read the full file on GitHub · 226 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago Changed · -2 lines 7bc3034ae813
  2. 19d ago Changed 430df6120473
  3. 2mo ago Changed · +21 lines 70f9dc458122
  4. 2mo ago First seen · 207 lines · 83 tokens per session scan A 0ab2e6807539

Subscribe to this mod's changes

muggle-works-npm-release is a skill published in the GitHub repository multiplex-ai/muggle-ai-works (16 stars, last pushed 2d ago), licensed Apache-2.0. It adds 83 tokens to every session and 3,114 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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