Vercel Composition Patterns
supabase/supabase
React composition patterns that scale. An agent skill from supabase/supabase.
Winamp 5.x .wal skin engine — Wasabi XML/XUI renderer, MAKI bytecode VM, VFS mounts, component hosting, and the ClassicPro engine import.
Install Winamp Modern Skin Guide
$ npx skills add ad-repo/nullplayer --skill winamp-modern-skin-guide -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ad-repo/nullplayer winamp-modern-skin-guide --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/ad-repo/nullplayer.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/winamp-modern-skin-guide .claude/skills/winamp-modern-skin-guide && 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 "winamp-modern-skin-guide" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/winamp-modern-skin-guide into .claude/skills/winamp-modern-skin-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "winamp-modern-skin-guide", 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/ad-repo/nullplayer/tree/main/skills/winamp-modern-skin-guideType 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 ad-repo/nullplayer --skill winamp-modern-skin-guide -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ad-repo/nullplayer winamp-modern-skin-guide --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/winamp-modern-skin-guide .agents/skills/winamp-modern-skin-guide && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "winamp-modern-skin-guide" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/winamp-modern-skin-guide into .agents/skills/winamp-modern-skin-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "winamp-modern-skin-guide", 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 ad-repo/nullplayer --skill winamp-modern-skin-guide -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ad-repo/nullplayer winamp-modern-skin-guide --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/winamp-modern-skin-guide .cursor/skills/winamp-modern-skin-guide && 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 "winamp-modern-skin-guide" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/winamp-modern-skin-guide into .cursor/skills/winamp-modern-skin-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "winamp-modern-skin-guide", 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/ad-repo/nullplayer.git --path skills/winamp-modern-skin-guide--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 ad-repo/nullplayer --skill winamp-modern-skin-guide -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ad-repo/nullplayer winamp-modern-skin-guide --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/winamp-modern-skin-guide .gemini/skills/winamp-modern-skin-guide && 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 "winamp-modern-skin-guide" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/winamp-modern-skin-guide into .gemini/skills/winamp-modern-skin-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "winamp-modern-skin-guide", 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 ad-repo/nullplayer winamp-modern-skin-guideInstalls 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 ad-repo/nullplayer --skill winamp-modern-skin-guide -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/winamp-modern-skin-guide .github/skills/winamp-modern-skin-guide && 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 "winamp-modern-skin-guide" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/winamp-modern-skin-guide into .github/skills/winamp-modern-skin-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "winamp-modern-skin-guide", 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 ad-repo/nullplayer --skill winamp-modern-skin-guide -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ad-repo/nullplayer winamp-modern-skin-guide --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ad-repo/nullplayer.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/winamp-modern-skin-guide .opencode/skills/winamp-modern-skin-guide && 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 "winamp-modern-skin-guide" agent skill from https://github.com/ad-repo/nullplayer/tree/main/skills/winamp-modern-skin-guide into .opencode/skills/winamp-modern-skin-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "winamp-modern-skin-guide", 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
winamp-modern-skin-guide- GitHub stars
- 158
- Token cost
- ~8.3k tokens
- SKILL.md length
- 3,717 words
- Files
- 93
- Skills in repo
- 40
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Winamp 5.x .wal skin engine — Wasabi XML/XUI renderer, MAKI bytecode VM, VFS mounts, component hosting, and the ClassicPro engine import.
- Working on the WinampModern subsystem
- SKILL.md covers The rule that outranks…, Routing: which file answers…, Where things live and The pipeline and the security…, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Debugging a .wal skin that fails to load
What it does
Winamp Modern Skin Guide is an agent skill from ad-repo/nullplayer. Winamp 5.x .wal skin engine — Wasabi XML/XUI renderer, MAKI bytecode VM, VFS mounts, component hosting, and the ClassicPro engine import. Use when working on the WinampModern subsystem, debugging a .wal skin that fails to load or renders wrong, or extending Wasabi/MAKI coverage, or triaging compatibility across many skins at once.
Its SKILL.md is about 8.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 96 other files (for example `compatibility.md`, `compatibility/limits-and-policy.md` and `compatibility/maki-surface.md`).
It sits in Development. The repository describes itself as: nullPlayer is a free open source macOS media player with some unique features.
When your agent uses it
- Working on the WinampModern subsystem
- Debugging a .wal skin that fails to load
- Extending Wasabi/MAKI coverage
- Triaging compatibility across many skins at once
Example prompts
- “/winamp-modern-skin-guide”
What it can do on your machine
Read from SKILL.md and the folder at commit 3d87ce1. 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
No scripts in the folder and no shell commands in SKILL.md.
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
Winamp Modern Skin Guide loads about 8.3k tokens when it runs. Until then it costs about 89 tokens; SKILL.md has 3,717 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 3,717 words (~8,254 tokens).
“NullPlayer's fourth UI mode (PlayerUIMode.winampModern) loads and runs Winamp 5.x modern skins — .wal archives containing Wasabi XML/XUI markup and compiled MAKI bytecode. It is a clean-room implementation: the archive is parsed, the object graph is built, and the scripts…”
- name
- winamp-modern-skin-guide
Files
SKILL.md and 92 other files in skills/winamp-modern-skin-guide of ad-repo/nullplayer.
- SKILL.md
- compatibility.md
- compatibility/limits-and-policy.md
- compatibility/maki-surface.md
- compatibility/wasabi-surface.md
- manual-qa-checklist.md
- reference/classicpro.md
- reference/components.md
- reference/components/browser.md
- reference/components/notifier.md
- reference/components/video.md
- reference/components/visualization.md
- reference/harness.md
- reference/loading.md
- reference/performance.md
- reference/rendering.md
- reference/rendering/colour.md
- … and 76 more
Open the folder on GitHubat commit 3d87ce1
Compare with similar skills
Winamp Modern Skin Guide 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 |
|---|---|---|---|---|---|---|
| Winamp Modern Skin Guide this skillad-repo/nullplayer | 158 | — | ~8.3k | Automated safety check: Pass | Custom licence | |
| Vercel Composition Patternssupabase/supabase | 111k | 58 repos | ~726 | Automated safety check: Pass | MIT | |
| Finishing a Development Branchobra/superpowers | 297k | 5 repos | ~1.9k | Automated safety check: Pass | MIT | |
| Typescript Advanced Typesrolling-scopes/rsschool-app | 10k | 25 repos | ~4.2k | Automated safety check: Pass | MPL-2.0 | |
| PR Babysitteropeninterpreter/openinterpreter | 69k | 3 repos | ~4.2k | Automated safety check: Pass | Apache-2.0 | |
| Code Review ChecklistshareAI-lab/learn-claude-code | 78k | 4 repos | ~1.1k | Automated safety check: Pass | MIT |
Similar skills
- Official
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.
Typescript Advanced Types
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Master TypeScript's advanced type system including generics, conditional types, mapped types, template literals, and utility types for building type-safe applications.
PR Babysitter
openinterpreter/openinterpreter
Watches an open GitHub pull request until it merges, handling review comments, diagnosing CI failures and retrying flaky checks along the way.
Code Review Checklist
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Reviews code against a five-part checklist covering security, correctness, performance, maintainability and testing, and reports findings in a fixed format.
Greploop
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Iteratively improves a PR (GitHub), MR (GitLab), or shelved changelist (Perforce) until Greptile gives it a 5/5 confidence score with zero unresolved comments.
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Related
Categories
Questions about Winamp Modern Skin Guide
What does Winamp Modern Skin Guide do?
Winamp 5.x .wal skin engine — Wasabi XML/XUI renderer, MAKI bytecode VM, VFS mounts, component hosting, and the ClassicPro engine import. Winamp Modern Skin Guide is an agent skill from ad-repo/nullplayer.wal skin engine — Wasabi XML/XUI renderer, MAKI bytecode VM, VFS mounts, component hosting, and the ClassicPro engine import.
When should I use Winamp Modern Skin Guide?
Winamp Modern Skin Guide fits situations like: working on the WinampModern subsystem; debugging a .wal skin that fails to load; extending Wasabi/MAKI coverage; triaging compatibility across many skins at once.
How do I install Winamp Modern Skin Guide in Claude Code?
Run `npx skills add ad-repo/nullplayer --skill winamp-modern-skin-guide -a claude-code`. Or copy the skill folder (skills/winamp-modern-skin-guide in ad-repo/nullplayer) into .claude/skills/winamp-modern-skin-guide in your project. Claude Code loads it when a task matches its description.
How do I install Winamp Modern Skin Guide in Codex?
Run `npx skills add ad-repo/nullplayer --skill winamp-modern-skin-guide -a codex`. Or copy the skill folder (skills/winamp-modern-skin-guide in ad-repo/nullplayer) into .agents/skills/winamp-modern-skin-guide in your project. Codex loads it when a task matches its description.
Can I use Winamp Modern Skin Guide 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 ad-repo/nullplayer --skill winamp-modern-skin-guide -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/winamp-modern-skin-guide, .gemini/skills/winamp-modern-skin-guide, .github/skills/winamp-modern-skin-guide and .opencode/skills/winamp-modern-skin-guide in your project.
What does Winamp Modern Skin Guide need to run?
SKILL.md names no scripts, command-line tools or credentials: Winamp Modern Skin Guide is instructions for the agent only.
Does Winamp Modern Skin Guide 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 Winamp Modern Skin Guide 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 Winamp Modern Skin Guide use?
Winamp Modern Skin Guide 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 Winamp Modern Skin Guide use?
About 8.3k tokens (SKILL.md is roughly 33k 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 Winamp Modern Skin Guide?
Skills that share tags, products or a category with Winamp Modern Skin Guide: 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 Winamp Modern Skin Guide?
ad-repo (a GitHub user) maintains it in ad-repo/nullplayer, which has 158 GitHub stars. The repository holds 40 skills in this directory. The repository was last updated on October 10, 2026.
Source: ad-repo/nullplayer on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.