Agent skill

Agenticx Agent Builder

Guide for creating persistent Near desktop digital avatars (数字分身) via natural-language interview and the createavatar tool.

Apache-2.0Auto-check passedAI & LLM Engineering

Install Agenticx Agent Builder

skills CLI

$ npx skills add DemonDamon/AgenticX --skill agenticx-agent-builder -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install DemonDamon/AgenticX agenticx-agent-builder --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agenticx/skills/agenticx-agent-builder .claude/skills/agenticx-agent-builder && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "agenticx-agent-builder" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-agent-builder into .claude/skills/agenticx-agent-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-agent-builder", 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

$skill-installer install https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-agent-builder

Type 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.

skills CLI

$ npx skills add DemonDamon/AgenticX --skill agenticx-agent-builder -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install DemonDamon/AgenticX agenticx-agent-builder --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .agents/skills && cp -r skills-src/agenticx/skills/agenticx-agent-builder .agents/skills/agenticx-agent-builder && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "agenticx-agent-builder" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-agent-builder into .agents/skills/agenticx-agent-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-agent-builder", 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.

skills CLI

$ npx skills add DemonDamon/AgenticX --skill agenticx-agent-builder -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install DemonDamon/AgenticX agenticx-agent-builder --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/agenticx/skills/agenticx-agent-builder .cursor/skills/agenticx-agent-builder && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "agenticx-agent-builder" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-agent-builder into .cursor/skills/agenticx-agent-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-agent-builder", 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

$ gemini skills install https://github.com/DemonDamon/AgenticX.git --path agenticx/skills/agenticx-agent-builder

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add DemonDamon/AgenticX --skill agenticx-agent-builder -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install DemonDamon/AgenticX agenticx-agent-builder --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/agenticx/skills/agenticx-agent-builder .gemini/skills/agenticx-agent-builder && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "agenticx-agent-builder" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-agent-builder into .gemini/skills/agenticx-agent-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-agent-builder", 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.

GitHub CLI

$ gh skill install DemonDamon/AgenticX agenticx-agent-builder

Installs 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).

skills CLI

$ npx skills add DemonDamon/AgenticX --skill agenticx-agent-builder -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .github/skills && cp -r skills-src/agenticx/skills/agenticx-agent-builder .github/skills/agenticx-agent-builder && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "agenticx-agent-builder" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-agent-builder into .github/skills/agenticx-agent-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-agent-builder", 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.

skills CLI

$ npx skills add DemonDamon/AgenticX --skill agenticx-agent-builder -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install DemonDamon/AgenticX agenticx-agent-builder --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/DemonDamon/AgenticX.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agenticx/skills/agenticx-agent-builder .opencode/skills/agenticx-agent-builder && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "agenticx-agent-builder" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-agent-builder into .opencode/skills/agenticx-agent-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-agent-builder", 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-agent-builder
GitHub stars: 294
Token cost: ~893 tokens
SKILL.md length: 417 words
Files: 1
Skills in repo: 17
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Guide for creating persistent Near desktop digital avatars (数字分身) via natural-language interview and the createavatar tool.

Works in 5 steps: Must call create_avatar after clarifying… → Do NOT only write a Markdown file to… → Do NOT tell the user there is "no… → …
The user wants to create an avatar
SKILL.md covers Hard rules, Interview flow (2–3 rounds,…, Distill into these fields and Landing step (required), plus 2 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Agenticx Agent Builder is an agent skill from DemonDamon/AgenticX. Guide for creating persistent Near desktop digital avatars (数字分身) via natural-language interview and the createavatar tool. Use when the user wants to create an avatar, digital twin, specialist agent persona, or add someone to the avatar sidebar.

Its SKILL.md is about 890 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 AI & LLM Engineering, covering Building AI agents. 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 create an avatar
Specialist agent persona
Add someone to the avatar sidebar

Example prompts

“/agenticx-agent-builder”

Requirements

Python 3

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

Must call create_avatar after clarifying and distilling the config. That tool writes the avatar into the registry and makes it appear in…
Do NOT only write a Markdown file to Desktop / workspace and claim the avatar is created.
Do NOT tell the user there is "no create-avatar API" — create_avatar is the API.
Do NOT ask the user to open「+ 新建」and fill the manual form unless they explicitly want the GUI.
Do NOT invent Python SDK / AgentExecutor / agx agent create workflows for this task — those are code-layer agents, not Near desktop avatars.

What it can do on your machine

Read from SKILL.md and the folder at commit c1af2c7. 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

Agenticx Agent Builder loads about 893 tokens when it runs. Until then it costs about 68 tokens; SKILL.md has 417 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~68
When it runs · the whole SKILL.md, loaded when a task matches: ~893

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 c1af2c7, republished under its Apache-2.0 licence (© DemonDamon). 417 words, ~893 tokens.

Download SKILL.mdSave it as .claude/skills/agenticx-agent-builder/SKILL.md (or your agent's skills folder).

name: agenticx-agent-builder
description: Guide for creating persistent Near desktop digital avatars (数字分身) via natural-language interview and the create_avatar tool. Use when the user wants to create an avatar, digital twin, specialist agent persona, or add someone to the avatar sidebar.
metadata.author: AgenticX
metadata.version: 0.6.5

Near Digital Avatar Builder

Help the user create a persistent desktop digital avatar (数字分身) that appears in the Near sidebar avatar list.

Hard rules

Must call create_avatar after clarifying and distilling the config. That tool writes the avatar into the registry and makes it appear in the sidebar.
Do NOT only write a Markdown file to Desktop / workspace and claim the avatar is created.
Do NOT tell the user there is "no create-avatar API" — create_avatar is the API.
Do NOT ask the user to open「+ 新建」and fill the manual form unless they explicitly want the GUI.
Do NOT invent Python SDK / AgentExecutor / agx agent create workflows for this task — those are code-layer agents, not Near desktop avatars.

Interview flow (2–3 rounds, not a long questionnaire)

Ask only what is still missing. Prefer short choices (clarification / show_widget) over open essays.

Round 1 — Positioning

What should this avatar own? (domain / job)
Who is it for? (usually the current user)

Round 2 — Scope & style

Coverage (markets, stacks, products, languages…)
Analysis / work style (trading vs research, concise vs thorough, etc.)

Round 3 — Boundaries (only if needed)

Risk preference / what it must never do
Preferred output structure
Optional default model

Stop early when you already have enough to write a solid name / role / system_prompt.

Distill into these fields

Field	Meaning	Example
`name`	Short character-like display name	飞廉
`role`	One-line positioning	进取型全市场交易分析师
`system_prompt`	Full behavior contract	See template below
`default_provider` / `default_model`	Optional; omit to inherit global default

Show full SKILL.md (171 more words)Show less

`system_prompt` should include

Identity & coverage
Analysis / work priorities
Risk preference & hard boundaries
Data discipline (no fabricated numbers / facts)
Output style & fixed structure when useful
Disclaimer when the domain needs one (finance, medical, legal, etc.)

Landing step (required)

Call:

text

create_avatar(
  name=...,
  role=...,
  system_prompt=...,
  default_provider=optional,
  default_model=optional
)

Then confirm to the user:

The avatar is in the sidebar list
They can open it or @ it in group chat
Optionally offer follow-ups: schedule automation, tweak prompt, set default model

If `create_avatar` returns `avatar_exists`

Do not create a duplicate. Tell the user it already exists and offer:

delegate_to_avatar(avatar_id=..., task=...) for work
Or update via settings / a later update tool if they want changes

Anti-patterns

Saying "半搞定" after only drafting a prompt file
Dumping a long YAML/Markdown archive without calling create_avatar
Asking the user to copy-paste into the create-avatar form
Confusing temporary spawn_subagent workers with persistent avatars
Using spawn_subagent with the same name as a registered avatar

Example success path

User: "帮我创建一个数字分身专门帮我分析金融市场"

Clarify markets / style / risk preference (2–3 choices)
Distill name=飞廉, role=进取型全市场交易分析师, full system_prompt
Call create_avatar(...)
Reply: 飞廉已加入分身列表，可直接点开或 @ 它

Files

Just SKILL.md in agenticx/skills/agenticx-agent-builder of DemonDamon/AgenticX.

Open the folder on GitHubat commit c1af2c7

Compare with similar skills

Agenticx Agent Builder 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.

Agenticx Agent Builder compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Agenticx Agent Builder this skillDemonDamon/AgenticX	294	—	~893	Automated safety check: Pass	Apache-2.0	today
Agent BuildershareAI-lab/learn-claude-code	78k	6 repos	~1.2k	Automated safety check: Pass	MIT	10 days ago
Create Agent Skillsglittercowboy/taches-cc-resources	2k	—	~1.7k	Automated safety check: Pass	MIT	6 mo ago
Muse Governanceucsandman/DashClaw	310	—	~1.7k	Automated safety check: Pass	MIT	2 days ago
Langgraph Agent Patternssoba-labs/langchain-agent-skills	107	—	~3.6k	Automated safety check: Pass	MIT	1 mo ago
Agent Buildern8n-io/n8n	207k	—	~2.5k	Automated safety check: Pass	Custom licence	today

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Questions about Agenticx Agent Builder

What does Agenticx Agent Builder do?

Guide for creating persistent Near desktop digital avatars (数字分身) via natural-language interview and the createavatar tool. Agenticx Agent Builder is an agent skill from DemonDamon/AgenticX. Guide for creating persistent Near desktop digital avatars (数字分身) via natural-language interview and the createavatar tool.

When should I use Agenticx Agent Builder?

Agenticx Agent Builder fits situations like: the user wants to create an avatar; specialist agent persona; add someone to the avatar sidebar.

How do I install Agenticx Agent Builder in Claude Code?

Run `npx skills add DemonDamon/AgenticX --skill agenticx-agent-builder -a claude-code`. Or copy the skill folder (agenticx/skills/agenticx-agent-builder in DemonDamon/AgenticX) into .claude/skills/agenticx-agent-builder in your project. Claude Code loads it when a task matches its description.

How do I install Agenticx Agent Builder in Codex?

Run `npx skills add DemonDamon/AgenticX --skill agenticx-agent-builder -a codex`. Or copy the skill folder (agenticx/skills/agenticx-agent-builder in DemonDamon/AgenticX) into .agents/skills/agenticx-agent-builder in your project. Codex loads it when a task matches its description.

Can I use Agenticx Agent Builder 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-agent-builder -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-agent-builder, .gemini/skills/agenticx-agent-builder, .github/skills/agenticx-agent-builder and .opencode/skills/agenticx-agent-builder in your project.

What does Agenticx Agent Builder need to run?

SKILL.md names no scripts, command-line tools or credentials: Agenticx Agent Builder is instructions for the agent only. Our summary lists: Python 3.

Does Agenticx Agent Builder 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 Agent Builder 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 Agent Builder use?

Agenticx Agent Builder 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 Agent Builder use?

About 893 tokens (SKILL.md is roughly 3.6k 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 Agent Builder?

Skills that share tags, products or a category with Agenticx Agent Builder: Agent Builder (shareAI-lab/learn-claude-code, 78k stars), Create Agent Skills (glittercowboy/taches-cc-resources, 2k stars), Muse Governance (ucsandman/DashClaw, 310 stars) and Langgraph Agent Patterns (soba-labs/langchain-agent-skills, 107 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Agenticx Agent Builder?

DemonDamon (a GitHub user) maintains it in DemonDamon/AgenticX, which has 294 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 8, 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.

Install Agenticx Agent Builder

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Near Digital Avatar Builder

Hard rules

Interview flow (2–3 rounds, not a long questionnaire)

Round 1 — Positioning

Round 2 — Scope & style

Round 3 — Boundaries (only if needed)

Distill into these fields

system_prompt should include

Landing step (required)

If create_avatar returns avatar_exists

Anti-patterns

Example success path

Files

Compare with similar skills

Similar skills

More from DemonDamon/AgenticX

Related

Questions about Agenticx Agent Builder

`system_prompt` should include

If `create_avatar` returns `avatar_exists`