New Mac Setup
swyxio/skills
Fully automated new Mac setup for fullstack web developers and AI engineers.
Automate HappyCapy skill creation by finding and adapting existing skills from anthropics/skills repository.
Install Happycapy Skill Creator
$ npx skills add happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install happycapy-ai/Happycapy-skills happycapy-skill-creator --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/happycapy-ai/Happycapy-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/happycapy-skill-creator .claude/skills/happycapy-skill-creator && 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 "happycapy-skill-creator" agent skill from https://github.com/happycapy-ai/Happycapy-skills/tree/main/skills/happycapy-skill-creator into .claude/skills/happycapy-skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "happycapy-skill-creator", 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/happycapy-ai/Happycapy-skills/tree/main/skills/happycapy-skill-creatorType 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 happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install happycapy-ai/Happycapy-skills happycapy-skill-creator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/happycapy-ai/Happycapy-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/happycapy-skill-creator .agents/skills/happycapy-skill-creator && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "happycapy-skill-creator" agent skill from https://github.com/happycapy-ai/Happycapy-skills/tree/main/skills/happycapy-skill-creator into .agents/skills/happycapy-skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "happycapy-skill-creator", 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 happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install happycapy-ai/Happycapy-skills happycapy-skill-creator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/happycapy-ai/Happycapy-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/happycapy-skill-creator .cursor/skills/happycapy-skill-creator && 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 "happycapy-skill-creator" agent skill from https://github.com/happycapy-ai/Happycapy-skills/tree/main/skills/happycapy-skill-creator into .cursor/skills/happycapy-skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "happycapy-skill-creator", 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/happycapy-ai/Happycapy-skills.git --path skills/happycapy-skill-creator--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 happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install happycapy-ai/Happycapy-skills happycapy-skill-creator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/happycapy-ai/Happycapy-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/happycapy-skill-creator .gemini/skills/happycapy-skill-creator && 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 "happycapy-skill-creator" agent skill from https://github.com/happycapy-ai/Happycapy-skills/tree/main/skills/happycapy-skill-creator into .gemini/skills/happycapy-skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "happycapy-skill-creator", 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 happycapy-ai/Happycapy-skills happycapy-skill-creatorInstalls 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 happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/happycapy-ai/Happycapy-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/happycapy-skill-creator .github/skills/happycapy-skill-creator && 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 "happycapy-skill-creator" agent skill from https://github.com/happycapy-ai/Happycapy-skills/tree/main/skills/happycapy-skill-creator into .github/skills/happycapy-skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "happycapy-skill-creator", 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 happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install happycapy-ai/Happycapy-skills happycapy-skill-creator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/happycapy-ai/Happycapy-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/happycapy-skill-creator .opencode/skills/happycapy-skill-creator && 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 "happycapy-skill-creator" agent skill from https://github.com/happycapy-ai/Happycapy-skills/tree/main/skills/happycapy-skill-creator into .opencode/skills/happycapy-skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "happycapy-skill-creator", 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
happycapy-skill-creator- GitHub stars
- 137
- Token cost
- ~627 tokens
- SKILL.md length
- 168 words
- Files
- 22 (incl. scripts, references)
- Skills in repo
- 28
- Repo updated
- First seen
- Licence
- MIT
At a glance
Automate HappyCapy skill creation by finding and adapting existing skills from anthropics/skills repository.
- Works in 5 steps: Search anthropics/skills for similar… → Clone the closest match → Add requested features using LLM → …
- User wants to create
- SKILL.md covers Workflow, Core Scripts, Examples and Environment Constraints, plus 2 more sections
- Runs Python scripts from its folder; calls python; needs AI_GATEWAY_API_KEY
What it does
Happycapy Skill Creator is an agent skill from happycapy-ai/Happycapy-skills. Automate HappyCapy skill creation by finding and adapting existing skills from anthropics/skills repository. Handles environment constraints (Python 3.11, Node.js 24, no Docker). Use when user wants to create or adapt skills for specific tasks.
Its SKILL.md is about 630 tokens, which your agent loads only when the skill is triggered. The skill folder holds 23 other files, including scripts and reference files (for example `README.md`, `references/bugfixes.md` and `references/happycapy-environment.md`).
It sits in Agent Workflows, covering Skill authoring and Containers. It works with Docker, Python and Node.js. The repository describes itself as: A curated collection of high-quality Claude Code skills to enhance your development workflow. The licence is MIT.
When your agent uses it
- User wants to create
- Adapt skills for specific tasks
Example prompts
- “/happycapy-skill-creator”
Requirements
- Python 3
- Node.js
- Docker
- A credential in AI_GATEWAY_API_KEY
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Search anthropics/skills for similar skills (semantic + LLM)
- Clone the closest match
- Add requested features using LLM
- Auto-fix HappyCapy compatibility (remove Docker, adapt dependencies)
- Package as .skill file
What it can do on your machine
Read from SKILL.md and the folder at commit 9ff72fe. 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
Ships 12 files in scripts/ (Python, from the files we listed), which the agent can run.
Shell commands in SKILL.md call:
python
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 these keys or tokens, usually read from environment variables:
AI_GATEWAY_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Happycapy Skill Creator loads about 627 tokens when it runs, and up to ~2.8k if it reads all its reference files. Until then it costs about 67 tokens; SKILL.md has 168 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); the scripts in this folder are not scanned.
SKILL.md
The full file from happycapy-ai/Happycapy-skills at commit 9ff72fe, republished under its MIT licence (© happycapy-ai). 168 words, ~627 tokens.
Download SKILL.mdSave it as
.claude/skills/happycapy-skill-creator/SKILL.md (or your agent's skills folder). This skill also uses 21 other files; get the full folder from GitHub.- name
- happycapy-skill-creator
- description
- Automate HappyCapy skill creation by finding and adapting existing skills from anthropics/skills repository. Handles environment constraints (Python 3.11, Node.js 24, no Docker). Use when user wants to create or adapt skills for specific tasks.
HappyCapy Skill Creator
Automate skill creation through adaptation rather than building from scratch.
Workflow
python scripts/create_skill.py "Your requirement here" --name skill-nameProcess:
- Search anthropics/skills for similar skills (semantic + LLM)
- Clone the closest match
- Add requested features using LLM
- Auto-fix HappyCapy compatibility (remove Docker, adapt dependencies)
- Package as
.skillfile
Core Scripts
create_skill.py
Main orchestrator - runs full workflow end-to-end
semantic_search.py
LLM-powered semantic search of anthropics/skills repository
clone_skill.py
Clone skill from GitHub (anthropics/skills)
integrate_feature.py
Add new features using LLM fine-tuning
check_compatibility.py
Scan for HappyCapy incompatibilities (Docker, unsupported runtimes, memory issues)
auto_fix.py
Auto-fix compatibility issues with LLM rewrites
package_skill.py
Create distributable .skill file (zip format)
Examples
Compress PDFs:
python scripts/create_skill.py "I need to compress PDF files"
# Finds pdf skill → Clones → Adds compress function → PackagesExtract video frames:
python scripts/create_skill.py "Extract frames from videos every second"
# Finds video-frames skill → Clones → Adds interval parameter → PackagesEnvironment Constraints
HappyCapy provides:
- ✅ Python 3.11, Node.js 24
- ✅ pandoc, ImageMagick, jq
- ✅ 4GB RAM, 2 CPU cores
HappyCapy does NOT support:
- ❌ Docker, Java, Ruby, Go
The tool automatically fixes incompatibilities.
Requirements
- Python 3.11+
AI_GATEWAY_API_KEYenvironment variable (auto-configured in HappyCapy)- Internet connection (to clone from anthropics/skills)
Advanced
Use improved auto-fix with batching:
from scripts.auto_fix_improved import fix_compatibility_issues
fix_compatibility_issues(
skill_path=path,
issues=issues,
batch_size=5, # Process 5 issues per batch
max_retries=2 # Retry failed fixes up to 2 times
)Troubleshooting: See references/bugfixes.md for known issues and solutions
Environment details: See references/happycapy-environment.md
© happycapy-ai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 21 other files (scripts, references) in skills/happycapy-skill-creator of happycapy-ai/Happycapy-skills.
- SKILL.md
- README.md
- pyproject.toml
- references/bugfixes.md
- references/happycapy-environment.md
- requirements.txt
- scripts/ai_gateway.py
- scripts/auto_fix.py
- scripts/auto_fix_improved.py
- scripts/check_compatibility.py
- scripts/clone_skill.py
- scripts/create_skill.py
- scripts/find_skills_integration.py
- scripts/integrate_feature.py
- scripts/package_skill.py
- scripts/search_implementation.py
- scripts/semantic_search.py
- scripts/test_skill.py
- tests
- … and 3 more
Open the folder on GitHubat commit 9ff72fe
Compare with similar skills
Happycapy Skill Creator 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 |
|---|---|---|---|---|---|---|
| Happycapy Skill Creator this skillhappycapy-ai/Happycapy-skills | 137 | — | ~627 | Automated safety check: Pass | MIT | |
| New Mac Setupswyxio/skills | 176 | — | ~4.3k | Automated safety check: Pass | MIT | |
| Deploy To Tempsgotempsh/temps | 833 | — | ~1.3k | Automated safety check: Notes | Apache-2.0 | |
| Writing Dockerfilesancoleman/ai-design-components | 525 | — | ~3.2k | Automated safety check: Notes | MIT | |
| Vercel Functionsvercel/vercel-plugin | 301 | — | ~12k | Automated safety check: Notes | Custom licence | |
| Env Troubleshoot312362115/claude | 107 | — | ~900 | Automated safety check: Warn | MIT |
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Questions about Happycapy Skill Creator
What does Happycapy Skill Creator do?
Automate HappyCapy skill creation by finding and adapting existing skills from anthropics/skills repository. Happycapy Skill Creator is an agent skill from happycapy-ai/Happycapy-skills. Automate HappyCapy skill creation by finding and adapting existing skills from anthropics/skills repository.
When should I use Happycapy Skill Creator?
Happycapy Skill Creator fits situations like: user wants to create; adapt skills for specific tasks.
How do I install Happycapy Skill Creator in Claude Code?
Run `npx skills add happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a claude-code`. Or copy the skill folder (skills/happycapy-skill-creator in happycapy-ai/Happycapy-skills) into .claude/skills/happycapy-skill-creator in your project. Claude Code loads it when a task matches its description.
How do I install Happycapy Skill Creator in Codex?
Run `npx skills add happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a codex`. Or copy the skill folder (skills/happycapy-skill-creator in happycapy-ai/Happycapy-skills) into .agents/skills/happycapy-skill-creator in your project. Codex loads it when a task matches its description.
Can I use Happycapy Skill Creator 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 happycapy-ai/Happycapy-skills --skill happycapy-skill-creator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/happycapy-skill-creator, .gemini/skills/happycapy-skill-creator, .github/skills/happycapy-skill-creator and .opencode/skills/happycapy-skill-creator in your project.
What does Happycapy Skill Creator need to run?
Going by SKILL.md and its folder, Happycapy Skill Creator needs Python for the scripts in its folder, the command-line tools its instructions call (python) and credentials named AI_GATEWAY_API_KEY. Our summary lists: Python 3; Node.js; Docker; A credential in AI_GATEWAY_API_KEY.
Does Happycapy Skill Creator 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 Happycapy Skill Creator 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Happycapy Skill Creator use?
Happycapy Skill Creator 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 Happycapy Skill Creator use?
About 627 tokens (SKILL.md is roughly 2.5k 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 2.1k tokens, read only when the agent opens those files.
What are the alternatives to Happycapy Skill Creator?
Skills that share tags, products or a category with Happycapy Skill Creator: New Mac Setup (swyxio/skills, 176 stars), Deploy To Temps (gotempsh/temps, 833 stars), Writing Dockerfiles (ancoleman/ai-design-components, 525 stars) and Vercel Functions (vercel/vercel-plugin, 301 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Happycapy Skill Creator?
happycapy-ai (a GitHub user) maintains it in happycapy-ai/Happycapy-skills, which has 137 GitHub stars. The repository holds 28 skills in this directory. The repository was last updated on September 3, 2026.
Source: happycapy-ai/Happycapy-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.