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.
Guide for managing AgenticX skills including listing, searching, installing, uninstalling, publishing, and running a skill registry server.
Install Agenticx Skill Manager
$ npx skills add DemonDamon/AgenticX --skill agenticx-skill-manager -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-skill-manager --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/DemonDamon/AgenticX.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agenticx/skills/agenticx-skill-manager .claude/skills/agenticx-skill-manager && 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 "agenticx-skill-manager" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-skill-manager into .claude/skills/agenticx-skill-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-skill-manager", 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/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-skill-managerType 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 DemonDamon/AgenticX --skill agenticx-skill-manager -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-skill-manager --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .agents/skills && cp -r skills-src/agenticx/skills/agenticx-skill-manager .agents/skills/agenticx-skill-manager && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "agenticx-skill-manager" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-skill-manager into .agents/skills/agenticx-skill-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-skill-manager", 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 DemonDamon/AgenticX --skill agenticx-skill-manager -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-skill-manager --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/agenticx/skills/agenticx-skill-manager .cursor/skills/agenticx-skill-manager && 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 "agenticx-skill-manager" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-skill-manager into .cursor/skills/agenticx-skill-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-skill-manager", 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/DemonDamon/AgenticX.git --path agenticx/skills/agenticx-skill-manager--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 DemonDamon/AgenticX --skill agenticx-skill-manager -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-skill-manager --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/agenticx/skills/agenticx-skill-manager .gemini/skills/agenticx-skill-manager && 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 "agenticx-skill-manager" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-skill-manager into .gemini/skills/agenticx-skill-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-skill-manager", 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 DemonDamon/AgenticX agenticx-skill-managerInstalls 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 DemonDamon/AgenticX --skill agenticx-skill-manager -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .github/skills && cp -r skills-src/agenticx/skills/agenticx-skill-manager .github/skills/agenticx-skill-manager && 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 "agenticx-skill-manager" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-skill-manager into .github/skills/agenticx-skill-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-skill-manager", 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 DemonDamon/AgenticX --skill agenticx-skill-manager -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-skill-manager --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agenticx/skills/agenticx-skill-manager .opencode/skills/agenticx-skill-manager && 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 "agenticx-skill-manager" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-skill-manager into .opencode/skills/agenticx-skill-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-skill-manager", 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
agenticx-skill-manager- GitHub stars
- 315
- Token cost
- ~1k tokens
- SKILL.md length
- 171 words
- Files
- 1
- Skills in repo
- 17
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Guide for managing AgenticX skills including listing, searching, installing, uninstalling, publishing, and running a skill registry server.
- The user wants to manage skills
- SKILL.md covers What Are Skills?, Skill Discovery Paths, CLI Commands and Creating a Skill, plus 3 more sections
- Needs API_KEY
- Find available skills
What it does
Agenticx Skill Manager is an agent skill from DemonDamon/AgenticX. Guide for managing AgenticX skills including listing, searching, installing, uninstalling, publishing, and running a skill registry server. Use when the user wants to manage skills, find available skills, publish custom skills, set up a skill registry, or understand the skill ecosystem.
Its SKILL.md is about 1k 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: AgenticX is a unified, production-ready multi-agent platform — Python SDK + CLI (agx) + Studio server + Machi desktop app. Features Meta-Agent orchestration, 15+ LLM providers… The licence is Apache-2.0.
When your agent uses it
- The user wants to manage skills
- Find available skills
- Publish custom skills
- Set up a skill registry
Example prompts
- “/agenticx-skill-manager”
Requirements
- Python 3
- A credential in API_KEY
What it can do on your machine
Read from SKILL.md and the folder at commit ce32aff. 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 (its code samples are bash, python, markdown and yaml).
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:
API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Agenticx Skill Manager loads about 1k tokens when it runs. Until then it costs about 78 tokens; SKILL.md has 171 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 DemonDamon/AgenticX at commit ce32aff, republished under its Apache-2.0 licence (© DemonDamon). 171 words, ~1,032 tokens.
Download SKILL.mdSave it as
.claude/skills/agenticx-skill-manager/SKILL.md (or your agent's skills folder).- name
- agenticx-skill-manager
- description
- Guide for managing AgenticX skills including listing, searching, installing, uninstalling, publishing, and running a skill registry server. Use when the user wants to manage skills, find available skills, publish custom skills, set up a skill registry, or understand the skill ecosystem.
- metadata.author
- AgenticX
- metadata.version
- 0.6.5
AgenticX Skill Manager
Guide for managing the AgenticX skill ecosystem.
What Are Skills?
Skills are self-contained instruction bundles (SKILL.md + optional resources) that teach AI agents how to perform specific tasks. AgenticX is compatible with the Anthropic Agent Skills specification.
Skill Discovery Paths
The skill loader scans these directories (highest priority first):
| Priority | Path | Scope |
|---|---|---|
| 1 | ./.agents/skills | Project (Cherry Studio compatible) |
| 2 | ./.agent/skills | Project |
| 3 | ~/.agents/skills | Global |
| 4 | ~/.agent/skills | Global |
| 5 | ./.claude/skills | Project |
| 6 | ~/.claude/skills | Global |
| 7 | Built-in (agenticx package) | Framework |
CLI Commands
List Skills
# List all locally discovered skills
agx skills list
# Include remote registry skills
agx skills list --remote
# Output as JSON
agx skills list --format jsonSearch Skills
# Search by keyword
agx skills search "pdf"
agx skills search "workflow"
# Search in remote registry
agx skills search "data analysis" --remoteInstall a Skill
# Install from registry
agx skills install pdf-processor
# Install to specific path
agx skills install pdf-processor --path ./.agents/skillsUninstall a Skill
agx skills uninstall pdf-processorPublish a Skill
# Publish to default registry
agx skills publish ./my-skills/data-analyzer
# Publish to a specific registry URL
agx skills publish ./my-skills/data-analyzer --registry http://registry.example.com:8321Run a Skill Registry Server
# Start local registry (default port 8321)
agx skills serve
# Custom port
agx skills serve --port 9000Creating a Skill
Skill Structure
my-skill/
├── SKILL.md # Required: frontmatter + instructions
├── scripts/ # Optional: executable code
├── references/ # Optional: additional documentation
└── assets/ # Optional: templates, images, dataSKILL.md Format
---
name: my-skill
description: What this skill does and when to use it. Be specific about triggers.
metadata:
author: your-name
version: "1.0"
---
# My Skill
Instructions for the AI agent to follow when this skill is activated.
## Steps
1. First step
2. Second step
## Examples
- Example usage patternKey Rules
- name: lowercase, hyphens only, max 64 chars, must match directory name
- description: max 1024 chars, include both what it does AND when to trigger
- Body: under 500 lines; split large content into
references/files
Programmatic Access
SkillBundleLoader
from agenticx.tools.skill_bundle import SkillBundleLoader
loader = SkillBundleLoader()
skills = loader.scan()
for skill in skills:
print(f"{skill.name}: {skill.description}")
# Get specific skill
meta = loader.get_skill("agenticx-quickstart")
content = loader.get_skill_content("agenticx-quickstart")SkillRegistryClient
from agenticx.skills import SkillRegistryClient
client = SkillRegistryClient(base_url="http://localhost:8321")
results = client.search("pdf")
client.install("pdf-processor")Skill Gating
Skills can declare environment requirements in frontmatter:
metadata:
agenticx:
gate:
os: ["linux", "darwin"]
requires_bins: ["ffmpeg"]
requires_env: ["API_KEY"]Skills that fail gating are silently skipped during scan.
Skill Sync
Sync skills between directories:
from agenticx.tools.skill_sync import sync_skills, check_skills_sync
# Check sync status
status = check_skills_sync()
# Sync .agents/skills → .claude/skills
sync_skills()© DemonDamon, 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 agenticx/skills/agenticx-skill-manager of DemonDamon/AgenticX.
Open the folder on GitHubat commit ce32aff
Compare with similar skills
Agenticx Skill Manager 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 |
|---|---|---|---|---|---|---|
| Agenticx Skill Manager this skillDemonDamon/AgenticX | 315 | — | ~1k | 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 | 103k | 4 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Ponytail Help CardDietrichGebert/ponytail | 159k | — | ~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 | ~12k | 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.
Skill Stocktake
affaan-m/ECC
Audits your installed Claude skills and commands for quality, with a quick mode for recently changed skills and a full mode that evaluates all of them through subagents.
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Related
Categories
Questions about Agenticx Skill Manager
What does Agenticx Skill Manager do?
Guide for managing AgenticX skills including listing, searching, installing, uninstalling, publishing, and running a skill registry server. Agenticx Skill Manager is an agent skill from DemonDamon/AgenticX. Guide for managing AgenticX skills including listing, searching, installing, uninstalling, publishing, and running a skill registry server.
When should I use Agenticx Skill Manager?
Agenticx Skill Manager fits situations like: the user wants to manage skills; find available skills; publish custom skills; set up a skill registry.
How do I install Agenticx Skill Manager in Claude Code?
Run `npx skills add DemonDamon/AgenticX --skill agenticx-skill-manager -a claude-code`. Or copy the skill folder (agenticx/skills/agenticx-skill-manager in DemonDamon/AgenticX) into .claude/skills/agenticx-skill-manager in your project. Claude Code loads it when a task matches its description.
How do I install Agenticx Skill Manager in Codex?
Run `npx skills add DemonDamon/AgenticX --skill agenticx-skill-manager -a codex`. Or copy the skill folder (agenticx/skills/agenticx-skill-manager in DemonDamon/AgenticX) into .agents/skills/agenticx-skill-manager in your project. Codex loads it when a task matches its description.
Can I use Agenticx Skill Manager 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 DemonDamon/AgenticX --skill agenticx-skill-manager -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agenticx-skill-manager, .gemini/skills/agenticx-skill-manager, .github/skills/agenticx-skill-manager and .opencode/skills/agenticx-skill-manager in your project.
What does Agenticx Skill Manager need to run?
Going by SKILL.md and its folder, Agenticx Skill Manager needs credentials named API_KEY. Our summary lists: Python 3; A credential in API_KEY.
Does Agenticx Skill Manager 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 Agenticx Skill Manager 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 Agenticx Skill Manager use?
Agenticx Skill Manager 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 Agenticx Skill Manager use?
About 1k tokens (SKILL.md is roughly 4.1k 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 Agenticx Skill Manager?
Skills that share tags, products or a category with Agenticx Skill Manager: Darwin Skill Optimizer (alchaincyf/darwin-skill, 6.2k stars), Using Agent Skills (addyosmani/agent-skills, 103k stars), Ponytail Help Card (DietrichGebert/ponytail, 159k 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 Agenticx Skill Manager?
DemonDamon (a GitHub user) maintains it in DemonDamon/AgenticX, which has 315 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 9, 2026.
Source: DemonDamon/AgenticX on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.