Skill Creator
Azure/azqr
Create new skills, modify and improve existing skills, and measure skill performance.
Create or refine reusable global skills in ~/.lulu/skills. An agent skill from kukojoy/lulu-agent.
Install Skill Creator
$ npx skills add kukojoy/lulu-agent --skill skill-creator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install kukojoy/lulu-agent 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/kukojoy/lulu-agent.git skills-src && mkdir -p .claude/skills && cp -r skills-src/setup/built_in_skills/skill-creator .claude/skills/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 "skill-creator" agent skill from https://github.com/kukojoy/lulu-agent/tree/main/setup/built_in_skills/skill-creator into .claude/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "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/kukojoy/lulu-agent/tree/main/setup/built_in_skills/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 kukojoy/lulu-agent --skill skill-creator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install kukojoy/lulu-agent skill-creator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kukojoy/lulu-agent.git skills-src && mkdir -p .agents/skills && cp -r skills-src/setup/built_in_skills/skill-creator .agents/skills/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 "skill-creator" agent skill from https://github.com/kukojoy/lulu-agent/tree/main/setup/built_in_skills/skill-creator into .agents/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "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 kukojoy/lulu-agent --skill skill-creator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install kukojoy/lulu-agent skill-creator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kukojoy/lulu-agent.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/setup/built_in_skills/skill-creator .cursor/skills/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 "skill-creator" agent skill from https://github.com/kukojoy/lulu-agent/tree/main/setup/built_in_skills/skill-creator into .cursor/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "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/kukojoy/lulu-agent.git --path setup/built_in_skills/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 kukojoy/lulu-agent --skill skill-creator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install kukojoy/lulu-agent skill-creator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kukojoy/lulu-agent.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/setup/built_in_skills/skill-creator .gemini/skills/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 "skill-creator" agent skill from https://github.com/kukojoy/lulu-agent/tree/main/setup/built_in_skills/skill-creator into .gemini/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "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 kukojoy/lulu-agent 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 kukojoy/lulu-agent --skill skill-creator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/kukojoy/lulu-agent.git skills-src && mkdir -p .github/skills && cp -r skills-src/setup/built_in_skills/skill-creator .github/skills/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 "skill-creator" agent skill from https://github.com/kukojoy/lulu-agent/tree/main/setup/built_in_skills/skill-creator into .github/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "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 kukojoy/lulu-agent --skill 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 kukojoy/lulu-agent skill-creator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/kukojoy/lulu-agent.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/setup/built_in_skills/skill-creator .opencode/skills/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 "skill-creator" agent skill from https://github.com/kukojoy/lulu-agent/tree/main/setup/built_in_skills/skill-creator into .opencode/skills/skill-creator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "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
skill-creator- GitHub stars
- 106
- Token cost
- ~800 tokens
- SKILL.md length
- 415 words
- Files
- 1
- Skills in repo
- 1
- Repo updated
- First seen
- Licence
- None found
At a glance
Create or refine reusable global skills in ~/.lulu/skills. An agent skill from kukojoy/lulu-agent.
- Works in 5 steps: Inspect existing skills with… → Read only the relevant skill with… → Decide whether to → …
- Workflow correction
- SKILL.md covers Scope, Workflow, Creation Rules and Refinement Rules, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Skill Creator is an agent skill from kukojoy/lulu-agent. Create or refine reusable global skills in ~/.lulu/skills. Use when a task pattern, workflow correction, tool procedure, or reusable technique should be captured as a skill instead of as memory or a one-off fix.
Its SKILL.md is about 800 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 Agent Workflows, covering Skill authoring.
When your agent uses it
- Workflow correction
- Reusable technique should be captured as a skill instead of as memory
Example prompts
- “/skill-creator”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Inspect existing skills with skill_lookup list.
- Read only the relevant skill with skill_lookup read.
- Decide whether to
- Write the smallest useful change with skill_manage
- Validate the result by reading it back with skill_lookup read or skill_lookup list.
What it can do on your machine
Read from SKILL.md and the folder at commit f9a5b12. 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
Skill Creator loads about 800 tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 415 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 415 words (~800 tokens).
“Use this skill to turn repeated work into a reusable global skill.”
- name
- skill-creator
Files
Just SKILL.md in setup/built_in_skills/skill-creator of kukojoy/lulu-agent.
Open the folder on GitHubat commit f9a5b12
Compare with similar skills
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 |
|---|---|---|---|---|---|---|
| Skill Creator this skillkukojoy/lulu-agent | 106 | — | ~800 | Automated safety check: Pass | None | |
| Skill CreatorAzure/azqr | 795 | 89 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Skill Developer Guidediet103/claude-code-infrastructure-showcase | 10k | 11 repos | ~3.5k | Automated safety check: Pass | MIT | |
| Darwin Skill Optimizeralchaincyf/darwin-skill | 6.2k | 1 repos | ~4.7k | Automated safety check: Pass | MIT | |
| Claude Code Command Developmentanthropics/claude-plugins-official | 38k | 10 repos | ~4.8k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Plugin Structureanthropics/claude-plugins-official | 38k | 10 repos | ~3.4k | Automated safety check: Pass | Apache-2.0 |
Similar skills
- Official
Claude Code Skill Developer Guide
diet103/claude-code-infrastructure-showcase
A guide to creating and managing Claude Code skills with auto-activation: skill-rules.json triggers, hooks, enforcement levels, YAML frontmatter and progressive disclosure.
Darwin Skill Optimizer
alchaincyf/darwin-skill
Scores SKILL.md files on a nine-dimension rubric, then improves them in a keep-or-revert loop with independent judge agents, test prompts, git history and human checkpoints.
- Official
Claude Code Command Development
anthropics/claude-plugins-official
Explains how to write Claude Code slash commands: Markdown files with YAML frontmatter, arguments, file references, bash context and interactive prompts.
- Official
Claude Code Plugin Structure
anthropics/claude-plugins-official
Explains the directory layout, plugin.json manifest and component organization of a Claude Code plugin, including auto-discovery and portable paths.
Skill Release Gate
rohitg00/ai-engineering-from-scratch
Evaluates an Agent Skill bundle before release for structure, trigger quality, artifact improvement, script correctness, safety, installed-tree integrity and host portability.
Related
Categories
Questions about Skill Creator
What does Skill Creator do?
Create or refine reusable global skills in ~/.lulu/skills. An agent skill from kukojoy/lulu-agent. Skill Creator is an agent skill from kukojoy/lulu-agent.lulu/skills.
When should I use Skill Creator?
Skill Creator fits situations like: workflow correction; reusable technique should be captured as a skill instead of as memory.
How do I install Skill Creator in Claude Code?
Run `npx skills add kukojoy/lulu-agent --skill skill-creator -a claude-code`. Or copy the skill folder (setup/built_in_skills/skill-creator in kukojoy/lulu-agent) into .claude/skills/skill-creator in your project. Claude Code loads it when a task matches its description.
How do I install Skill Creator in Codex?
Run `npx skills add kukojoy/lulu-agent --skill skill-creator -a codex`. Or copy the skill folder (setup/built_in_skills/skill-creator in kukojoy/lulu-agent) into .agents/skills/skill-creator in your project. Codex loads it when a task matches its description.
Can I use 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 kukojoy/lulu-agent --skill 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/skill-creator, .gemini/skills/skill-creator, .github/skills/skill-creator and .opencode/skills/skill-creator in your project.
What does Skill Creator need to run?
SKILL.md names no scripts, command-line tools or credentials: Skill Creator is instructions for the agent only.
Does 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 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. Review the folder before installing.
What licence does Skill Creator use?
No licence was found for Skill Creator or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Skill Creator use?
About 800 tokens (SKILL.md is roughly 3.2k 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 Skill Creator?
Skills that share tags, products or a category with Skill Creator: Skill Creator (Azure/azqr, 795 stars), Claude Code Skill Developer Guide (diet103/claude-code-infrastructure-showcase, 10k stars), Darwin Skill Optimizer (alchaincyf/darwin-skill, 6.2k stars) and Claude Code Command Development (anthropics/claude-plugins-official, 38k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Skill Creator?
kukojoy (a GitHub user) maintains it in kukojoy/lulu-agent, which has 106 GitHub stars. The repository was last updated on September 15, 2026.
Source: kukojoy/lulu-agent on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.