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.
Searches the claude-plugins.dev registry for agent skills that fit the current task and installs the chosen ones for the user's coding agent.
Install Skills Discovery
$ npx skills add Kamalnrf/claude-plugins --skill skills-discovery -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Kamalnrf/claude-plugins skills-discovery --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/Kamalnrf/claude-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/skills-discovery .claude/skills/skills-discovery && 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 "skills-discovery" agent skill from https://github.com/Kamalnrf/claude-plugins/tree/main/skills/skills-discovery into .claude/skills/skills-discovery/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skills-discovery", 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/Kamalnrf/claude-plugins/tree/main/skills/skills-discoveryType 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 Kamalnrf/claude-plugins --skill skills-discovery -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Kamalnrf/claude-plugins skills-discovery --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Kamalnrf/claude-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/skills-discovery .agents/skills/skills-discovery && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "skills-discovery" agent skill from https://github.com/Kamalnrf/claude-plugins/tree/main/skills/skills-discovery into .agents/skills/skills-discovery/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skills-discovery", 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 Kamalnrf/claude-plugins --skill skills-discovery -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Kamalnrf/claude-plugins skills-discovery --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Kamalnrf/claude-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/skills-discovery .cursor/skills/skills-discovery && 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 "skills-discovery" agent skill from https://github.com/Kamalnrf/claude-plugins/tree/main/skills/skills-discovery into .cursor/skills/skills-discovery/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skills-discovery", 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/Kamalnrf/claude-plugins.git --path skills/skills-discovery--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 Kamalnrf/claude-plugins --skill skills-discovery -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Kamalnrf/claude-plugins skills-discovery --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Kamalnrf/claude-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/skills-discovery .gemini/skills/skills-discovery && 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 "skills-discovery" agent skill from https://github.com/Kamalnrf/claude-plugins/tree/main/skills/skills-discovery into .gemini/skills/skills-discovery/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skills-discovery", 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 Kamalnrf/claude-plugins skills-discoveryInstalls 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 Kamalnrf/claude-plugins --skill skills-discovery -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Kamalnrf/claude-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/skills-discovery .github/skills/skills-discovery && 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 "skills-discovery" agent skill from https://github.com/Kamalnrf/claude-plugins/tree/main/skills/skills-discovery into .github/skills/skills-discovery/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skills-discovery", 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 Kamalnrf/claude-plugins --skill skills-discovery -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Kamalnrf/claude-plugins skills-discovery --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Kamalnrf/claude-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/skills-discovery .opencode/skills/skills-discovery && 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 "skills-discovery" agent skill from https://github.com/Kamalnrf/claude-plugins/tree/main/skills/skills-discovery into .opencode/skills/skills-discovery/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skills-discovery", 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
skills-discovery- GitHub stars
- 563
- Token cost
- ~1.4k tokens
- SKILL.md length
- 456 words
- Files
- 1
- Skills in repo
- 1
- Repo updated
- First seen
- Licence
- None found
At a glance
Searches the claude-plugins.dev registry for agent skills that fit the current task and installs the chosen ones for the user's coding agent.
- Works in 2 steps: Do I have a skill for this? → Use it → Might one exist that I don't have? →…
- Looking for an existing skill before starting a task in an unfamiliar technology
- SKILL.md covers When to search for skills, Discovery workflow, Search strategies and Installation, plus 5 more sections
- Calls npx and curl; reaches claude-plugins.dev and github.com
What it does
Before any non-trivial task, the agent is told to ask two questions: is an installed skill already right for this, and might the registry hold one that is. Searching is meant to be proactive, even when you never mention skills, and especially for specific technologies, frameworks, file formats or specialist domains. A search is a `curl` call to the registry API with a query, a limit and an offset.
The skill gives guidance on queries: use one to three specific terms, prefer widely used wording over project jargon, and combine technology with task. Installing starts by working out which client you use, asking if unclear, and then runs `npx skills-installer install` with the skill's identifier and a `--client` flag. Supported clients include Claude Code, Codex, Cursor, Amp, OpenCode, Goose, VS Code, Letta, Gemini CLI and Windsurf, among others.
When your agent uses it
- Looking for an existing skill before starting a task in an unfamiliar technology
- Installing a skill from the registry into Claude Code or Cursor
- Checking whether a specialist skill exists for PDFs, data pipelines or testing
Example prompts
- “Find me a skill for working with PDF forms and install it for Claude Code.”
- “Search the registry for Kubernetes skills and show the top matches.”
- “Before you start on this Stripe integration, check whether a relevant skill exists.”
Requirements
- Network access to the claude-plugins.dev registry
- Node.js with `npx` for the installer
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- Do I have a skill for this? → Use it
- Might one exist that I don't have? → Search the registry
What it can do on your machine
Read from SKILL.md and the folder at commit aec166c. 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
Shell commands in SKILL.md call:
npxcurl
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
claude-plugins.devgithub.com
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
Skills Discovery loads about 1.4k tokens when it runs. Until then it costs about 122 tokens; SKILL.md has 456 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 456 words (~1,428 tokens).
“You can extend your capabilities by discovering and installing Agent Skills from the claude-plugins.dev registry. Skills provide specialized knowledge, tools, and techniques for specific technologies, frameworks, and domains.”
- name
- skills-discovery
Files
Just SKILL.md in skills/skills-discovery of Kamalnrf/claude-plugins.
Open the folder on GitHubat commit aec166c
Compare with similar skills
Skills Discovery 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 |
|---|---|---|---|---|---|---|
| Skills Discovery this skillKamalnrf/claude-plugins | 563 | — | ~1.4k | Automated safety check: Pass | None | |
| 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.
Related
Categories
Questions about Skills Discovery
What does Skills Discovery do?
Searches the claude-plugins.dev registry for agent skills that fit the current task and installs the chosen ones for the user's coding agent. Before any non-trivial task, the agent is told to ask two questions: is an installed skill already right for this, and might the registry hold one that is. Searching is meant to be proactive, even when you never mention skills, and especially for specific technologies, frameworks, file formats or specialist domains.
When should I use Skills Discovery?
Skills Discovery fits situations like: looking for an existing skill before starting a task in an unfamiliar technology; installing a skill from the registry into Claude Code or Cursor; checking whether a specialist skill exists for PDFs, data pipelines or testing.
How do I install Skills Discovery in Claude Code?
Run `npx skills add Kamalnrf/claude-plugins --skill skills-discovery -a claude-code`. Or copy the skill folder (skills/skills-discovery in Kamalnrf/claude-plugins) into .claude/skills/skills-discovery in your project. Claude Code loads it when a task matches its description.
How do I install Skills Discovery in Codex?
Run `npx skills add Kamalnrf/claude-plugins --skill skills-discovery -a codex`. Or copy the skill folder (skills/skills-discovery in Kamalnrf/claude-plugins) into .agents/skills/skills-discovery in your project. Codex loads it when a task matches its description.
Can I use Skills Discovery 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 Kamalnrf/claude-plugins --skill skills-discovery -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skills-discovery, .gemini/skills/skills-discovery, .github/skills/skills-discovery and .opencode/skills/skills-discovery in your project.
What does Skills Discovery need to run?
Going by SKILL.md and its folder, Skills Discovery needs the command-line tools its instructions call (npx and curl). Our summary lists: Network access to the claude-plugins.dev registry; Node.js with `npx` for the installer.
Does Skills Discovery access the network?
SKILL.md names 2 domains. In commands or code: claude-plugins.dev and github.com; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.
Is Skills Discovery 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 Skills Discovery use?
No licence was found for Skills Discovery or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Skills Discovery use?
About 1.4k tokens (SKILL.md is roughly 5.7k 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 Skills Discovery?
Skills that share tags, products or a category with Skills Discovery: 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 Skills Discovery?
Kamalnrf (a GitHub user) maintains it in Kamalnrf/claude-plugins, which has 563 GitHub stars. The repository was last updated on October 5, 2026.
Source: Kamalnrf/claude-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.