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.
Activates when the user asks about Agent Skills, wants to find reusable AI capabilities, needs to install skills, or mentions skills for Claude.
Install Skill Lookup
$ npx skills add foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install foryourhealth111-pixel/Vibe-Skills skill-lookup --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/foryourhealth111-pixel/Vibe-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/bundled/skills/skill-lookup .claude/skills/skill-lookup && 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-lookup" agent skill from https://github.com/foryourhealth111-pixel/Vibe-Skills/tree/main/bundled/skills/skill-lookup into .claude/skills/skill-lookup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lookup", 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/foryourhealth111-pixel/Vibe-Skills/tree/main/bundled/skills/skill-lookupType 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 foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install foryourhealth111-pixel/Vibe-Skills skill-lookup --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/foryourhealth111-pixel/Vibe-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/bundled/skills/skill-lookup .agents/skills/skill-lookup && 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-lookup" agent skill from https://github.com/foryourhealth111-pixel/Vibe-Skills/tree/main/bundled/skills/skill-lookup into .agents/skills/skill-lookup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lookup", 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 foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install foryourhealth111-pixel/Vibe-Skills skill-lookup --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/foryourhealth111-pixel/Vibe-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/bundled/skills/skill-lookup .cursor/skills/skill-lookup && 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-lookup" agent skill from https://github.com/foryourhealth111-pixel/Vibe-Skills/tree/main/bundled/skills/skill-lookup into .cursor/skills/skill-lookup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lookup", 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/foryourhealth111-pixel/Vibe-Skills.git --path bundled/skills/skill-lookup--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 foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install foryourhealth111-pixel/Vibe-Skills skill-lookup --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/foryourhealth111-pixel/Vibe-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/bundled/skills/skill-lookup .gemini/skills/skill-lookup && 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-lookup" agent skill from https://github.com/foryourhealth111-pixel/Vibe-Skills/tree/main/bundled/skills/skill-lookup into .gemini/skills/skill-lookup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lookup", 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 foryourhealth111-pixel/Vibe-Skills skill-lookupInstalls 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 foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/foryourhealth111-pixel/Vibe-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/bundled/skills/skill-lookup .github/skills/skill-lookup && 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-lookup" agent skill from https://github.com/foryourhealth111-pixel/Vibe-Skills/tree/main/bundled/skills/skill-lookup into .github/skills/skill-lookup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lookup", 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 foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install foryourhealth111-pixel/Vibe-Skills skill-lookup --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/foryourhealth111-pixel/Vibe-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/bundled/skills/skill-lookup .opencode/skills/skill-lookup && 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-lookup" agent skill from https://github.com/foryourhealth111-pixel/Vibe-Skills/tree/main/bundled/skills/skill-lookup into .opencode/skills/skill-lookup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lookup", 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-lookup- GitHub stars
- 3.6k
- Token cost
- ~595 tokens
- SKILL.md length
- 293 words
- Files
- 1
- Skills in repo
- 81
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Activates when the user asks about Agent Skills, wants to find reusable AI capabilities, needs to install skills, or mentions skills for Claude.
- Works in 3 steps: Call get_skill to retrieve all files → Create the directory… → Save each file to the appropriate location
- Asks about Agent Skills
- SKILL.md covers When to Use This Skill, Available Tools, How to Search for Skills and How to Get a Skill, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Skill Lookup is an agent skill from foryourhealth111-pixel/Vibe-Skills. Activates when the user asks about Agent Skills, wants to find reusable AI capabilities, needs to install skills, or mentions skills for Claude. Use for discovering, retrieving, and installing skills.
Its SKILL.md is about 600 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 management. The repository describes itself as: Intelligent Skill routing and workflow orchestration for AI agents — +21.12 pp reward, −29.6% tokens on SkillsBench with DeepSeekV4Flash-VE. The licence is Apache-2.0.
When your agent uses it
- Asks about Agent Skills
- Wants to find reusable AI capabilities
- Needs to install skills
- Mentions skills for Claude
Example prompts
- “Use the skill-lookup skill to activate when the user asks about Agent Skills, wants to find reusable AI capabilities, needs to install skills, or…”
- “/skill-lookup”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Call get_skill to retrieve all files
- Create the directory .claude/skills/{slug}/
- Save each file to the appropriate location
What it can do on your machine
Read from SKILL.md and the folder at commit ddcaa2a. 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 Lookup loads about 595 tokens when it runs. Until then it costs about 53 tokens; SKILL.md has 293 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
The full file from foryourhealth111-pixel/Vibe-Skills at commit ddcaa2a, republished under its Apache-2.0 licence (© foryourhealth111-pixel). 293 words, ~595 tokens.
Download SKILL.mdSave it as
.claude/skills/skill-lookup/SKILL.md (or your agent's skills folder).- name
- skill-lookup
- description
- Activates when the user asks about Agent Skills, wants to find reusable AI capabilities, needs to install skills, or mentions skills for Claude. Use for discovering, retrieving, and installing skills.
When the user needs Agent Skills, wants to extend Claude's capabilities, or is looking for reusable AI agent components, use the prompts.chat MCP server.
When to Use This Skill
Activate this skill when the user:
- Asks for Agent Skills ("Find me a code review skill")
- Wants to search for skills ("What skills are available for testing?")
- Needs to retrieve a specific skill ("Get skill XYZ")
- Wants to install a skill ("Install the documentation skill")
- Mentions extending Claude's capabilities with skills
Available Tools
Use these prompts.chat MCP tools:
search_skills- Search for skills by keywordget_skill- Get a specific skill by ID with all its files
How to Search for Skills
Call search_skills with:
query: The search keywords from the user's requestlimit: Number of results (default 10, max 50)category: Filter by category slug (e.g., "coding", "automation")tag: Filter by tag slug
Present results showing:
- Title and description
- Author name
- File list (SKILL.md, reference docs, scripts)
- Category and tags
- Link to the skill
How to Get a Skill
Call get_skill with:
id: The skill ID
Returns the skill metadata and all file contents:
- SKILL.md (main instructions)
- Reference documentation
- Helper scripts
- Configuration files
How to Install a Skill
When the user asks to install a skill:
- Call
get_skillto retrieve all files - Create the directory
.claude/skills/{slug}/ - Save each file to the appropriate location:
SKILL.md→.claude/skills/{slug}/SKILL.md- Other files →
.claude/skills/{slug}/{filename}
Skill Structure
Skills contain:
- SKILL.md (required) - Main instructions with frontmatter
- Reference docs - Additional documentation files
- Scripts - Helper scripts (Python, shell, etc.)
- Config files - JSON, YAML configurations
Guidelines
- Always search before suggesting the user create their own skill
- Present search results in a readable format with file counts
- When installing, confirm the skill was saved successfully
- Explain what the skill does and when it activates
© foryourhealth111-pixel, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in bundled/skills/skill-lookup of foryourhealth111-pixel/Vibe-Skills.
Open the folder on GitHubat commit ddcaa2a
Compare with similar skills
Skill Lookup 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 Lookup this skillforyourhealth111-pixel/Vibe-Skills | 3.6k | — | ~595 | Automated safety check: Pass | Apache-2.0 | |
| Darwin Skill Optimizeralchaincyf/darwin-skill | 6.2k | 1 repos | ~4.7k | Automated safety check: Pass | MIT | |
| Using Agent Skillsaddyosmani/agent-skills | 105k | 4 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Ponytail Help CardDietrichGebert/ponytail | 160k | — | ~726 | Automated safety check: Pass | MIT | |
| Skill Creatorzhayujie/CowAgent | 47k | — | ~4.7k | Automated safety check: Notes | MIT | |
| Task Observerrebelytics/one-skill-to-rule-them-all | 3.2k | 1 repos | ~11k | Automated safety check: Pass | CC-BY-4.0 |
Similar skills
Using Agent Skills
addyosmani/agent-skills
Meta-skill for choosing which workflow skill fits the task at hand, plus always-on habits: surface assumptions, stop on confusion, push back, keep it simple and stay in scope.
Ponytail Help Card
DietrichGebert/ponytail
Shows a one-shot quick-reference card for the ponytail skills: intensity levels, the six commands, and how to turn it off, set a default mode and update.
Skill Creator
zhayujie/CowAgent
Guides creating, installing and updating agent skills in a workspace: SKILL.md frontmatter, bundled scripts and references, with scripts to scaffold, validate and package.
Task Observer
rebelytics/one-skill-to-rule-them-all
Monitors task execution for skill improvement opportunities.
Open-Science Skill Creator
aipoch/open-science
Creates, revises, evaluates and publishes skills in the Open-Science app through its native host.skills composer, with optional test prompts and benchmarks.
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Related
Categories
Questions about Skill Lookup
What does Skill Lookup do?
Activates when the user asks about Agent Skills, wants to find reusable AI capabilities, needs to install skills, or mentions skills for Claude. Skill Lookup is an agent skill from foryourhealth111-pixel/Vibe-Skills. Activates when the user asks about Agent Skills, wants to find reusable AI capabilities, needs to install skills, or mentions skills for Claude.
When should I use Skill Lookup?
Skill Lookup fits situations like: asks about Agent Skills; wants to find reusable AI capabilities; needs to install skills; mentions skills for Claude.
How do I install Skill Lookup in Claude Code?
Run `npx skills add foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -a claude-code`. Or copy the skill folder (bundled/skills/skill-lookup in foryourhealth111-pixel/Vibe-Skills) into .claude/skills/skill-lookup in your project. Claude Code loads it when a task matches its description.
How do I install Skill Lookup in Codex?
Run `npx skills add foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -a codex`. Or copy the skill folder (bundled/skills/skill-lookup in foryourhealth111-pixel/Vibe-Skills) into .agents/skills/skill-lookup in your project. Codex loads it when a task matches its description.
Can I use Skill Lookup 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 foryourhealth111-pixel/Vibe-Skills --skill skill-lookup -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-lookup, .gemini/skills/skill-lookup, .github/skills/skill-lookup and .opencode/skills/skill-lookup in your project.
What does Skill Lookup need to run?
SKILL.md names no scripts, command-line tools or credentials: Skill Lookup is instructions for the agent only.
Does Skill Lookup 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 Lookup 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 Lookup use?
Skill Lookup is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Skill Lookup use?
About 595 tokens (SKILL.md is roughly 2.4k 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 Lookup?
Skills that share tags, products or a category with Skill Lookup: Darwin Skill Optimizer (alchaincyf/darwin-skill, 6.2k stars), Using Agent Skills (addyosmani/agent-skills, 105k stars), Ponytail Help Card (DietrichGebert/ponytail, 160k stars) and Skill Creator (zhayujie/CowAgent, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Skill Lookup?
foryourhealth111-pixel (a GitHub user) maintains it in foryourhealth111-pixel/Vibe-Skills, which has 3,627 GitHub stars. The repository holds 81 skills in this directory. The repository was last updated on August 31, 2026.
Source: foryourhealth111-pixel/Vibe-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.