MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Guide for using the A2A (Agent-to-Agent) communication protocol in AgenticX including agent discovery, skill invocation, remote agent cards, and distributed agent systems.
$ npx skills add DemonDamon/AgenticX --skill agenticx-a2a-connector -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-a2a-connector --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-a2a-connector .claude/skills/agenticx-a2a-connector && 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-a2a-connector" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-a2a-connector into .claude/skills/agenticx-a2a-connector/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-a2a-connector", 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-a2a-connectorType 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-a2a-connector -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-a2a-connector --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-a2a-connector .agents/skills/agenticx-a2a-connector && 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-a2a-connector" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-a2a-connector into .agents/skills/agenticx-a2a-connector/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-a2a-connector", 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-a2a-connector -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-a2a-connector --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-a2a-connector .cursor/skills/agenticx-a2a-connector && 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-a2a-connector" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-a2a-connector into .cursor/skills/agenticx-a2a-connector/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-a2a-connector", 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-a2a-connector--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-a2a-connector -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install DemonDamon/AgenticX agenticx-a2a-connector --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-a2a-connector .gemini/skills/agenticx-a2a-connector && 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-a2a-connector" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-a2a-connector into .gemini/skills/agenticx-a2a-connector/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-a2a-connector", 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-a2a-connectorInstalls 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-a2a-connector -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-a2a-connector .github/skills/agenticx-a2a-connector && 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-a2a-connector" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-a2a-connector into .github/skills/agenticx-a2a-connector/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-a2a-connector", 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-a2a-connector -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-a2a-connector --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-a2a-connector .opencode/skills/agenticx-a2a-connector && 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-a2a-connector" agent skill from https://github.com/DemonDamon/AgenticX/tree/main/agenticx/skills/agenticx-a2a-connector into .opencode/skills/agenticx-a2a-connector/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agenticx-a2a-connector", 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.
agenticx-a2a-connectorGuide for using the A2A (Agent-to-Agent) communication protocol in AgenticX including agent discovery, skill invocation, remote agent cards, and distributed agent systems.
Agenticx A2a Connector is an agent skill from DemonDamon/AgenticX. Guide for using the A2A (Agent-to-Agent) communication protocol in AgenticX including agent discovery, skill invocation, remote agent cards, and distributed agent systems. Use when the user wants agents to communicate with each other, set up distributed agent systems, invoke remote agent skills, or build agent-to-agent workflows.
Its SKILL.md is about 1.3k 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. 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.
6 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 421a73a. It shows what the files ask for, not the result of running them.
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.
No scripts in the folder and no shell commands in SKILL.md (its code samples are python and bash).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Agenticx A2a Connector loads about 1.3k tokens when it runs. Until then it costs about 89 tokens; SKILL.md has 210 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.
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.
The full file from DemonDamon/AgenticX at commit 421a73a, republished under its Apache-2.0 licence (© DemonDamon). 210 words, ~1,256 tokens.
.claude/skills/agenticx-a2a-connector/SKILL.md (or your agent's skills folder).Guide for building distributed, inter-communicating agent systems using the A2A protocol.
A2A (Agent-to-Agent) is a protocol that enables agents to discover each other's capabilities and invoke them as if they were local tools. This allows building distributed agent systems where specialized agents collaborate across network boundaries.
| Component | Purpose |
|---|---|
AgentCard | Advertises an agent's identity and skills |
Skill | Describes a capability an agent offers |
A2ASkillTool | Wraps a remote skill as a local tool |
A2ASkillToolFactory | Batch-creates tools from an AgentCard |
A2AClient | HTTP client for calling remote agents |
An AgentCard declares what an agent can do:
from agenticx.protocols import AgentCard, Skill
card = AgentCard(
name="Research Agent",
description="Specializes in web research and report generation",
url="http://research-agent:8000",
skills=[
Skill(
name="web_research",
description="Search the web and compile findings",
parameters_schema={
"type": "object",
"properties": {
"query": {"type": "string"},
"depth": {"type": "integer", "default": 3}
},
"required": ["query"]
}
),
Skill(
name="generate_report",
description="Generate a structured report from research data",
parameters_schema={
"type": "object",
"properties": {
"topic": {"type": "string"},
"format": {"type": "string", "enum": ["markdown", "html"]}
},
"required": ["topic"]
}
)
]
)from agenticx.protocols import A2ASkillTool
tool = A2ASkillTool(
agent_url="http://research-agent:8000",
skill_name="web_research"
)
# Use like any local tool
result = tool.run(query="latest AI trends", depth=5)from agenticx.protocols import A2ASkillToolFactory
factory = A2ASkillToolFactory()
tools = factory.create_tools(agent_card=card)
# tools is a list of A2ASkillTool instances, one per skill
for t in tools:
print(f"Tool: {t.name} — {t.description}")Low-level client for direct communication:
from agenticx.protocols import A2AClient
client = A2AClient(base_url="http://research-agent:8000")
# Discover capabilities
card = client.get_agent_card()
# Invoke a skill
result = client.invoke_skill(
skill_name="web_research",
parameters={"query": "quantum computing", "depth": 3}
)Expose your agent as an A2A service:
from agenticx import Agent
from agenticx.protocols import A2AServer
agent = Agent(
id="specialist",
name="Data Specialist",
role="Data Analysis",
goal="Analyze datasets",
organization_id="team-a"
)
server = A2AServer(agent=agent, port=8001)
server.register_skill(
name="analyze_data",
handler=my_analysis_function,
description="Analyze a dataset and return insights"
)
server.start()┌─────────────────┐ A2A ┌──────────────────┐
│ Orchestrator │────────────→│ Research Agent │
│ Agent │ │ (port 8001) │
│ (port 8000) │ └──────────────────┘
│ │ A2A ┌──────────────────┐
│ │────────────→│ Analysis Agent │
│ │ │ (port 8002) │
└─────────────────┘ └──────────────────┘The Orchestrator discovers remote agents via their AgentCards and invokes their skills as tools within its own workflow.
# Start an agent as an A2A service
agx serve --port 8001
# The serve command exposes:
# - GET /.well-known/agent-card → AgentCard JSON
# - POST /tasks/submit → Invoke skillsparameters_schema for skills/health endpoints before routing traffic© 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
Just SKILL.md in agenticx/skills/agenticx-a2a-connector of DemonDamon/AgenticX.
Open the folder on GitHubat commit 421a73a
Agenticx A2a Connector 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 A2a Connector this skillDemonDamon/AgenticX | 340 | — | ~1.3k | Automated safety check: Pass | Apache-2.0 | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Hook Development for Claude Code Pluginsanthropics/claude-plugins-official | 38k | 10 repos | ~4.1k | Automated safety check: Notes | Apache-2.0 | |
| Using Superpowersfarm-fe/farm | 5.6k | 35 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Executing Plans Inlineobra/superpowers | 297k | 2 repos | ~5.1k | Automated safety check: Pass | MIT | |
| Skill CreatorAzure/azqr | 796 | 89 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 |
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
anthropics/claude-plugins-official
Explains how to write Claude Code plugin hooks, both prompt-based checks and bash commands, for events such as PreToolUse, Stop and SessionStart.
farm-fe/farm
A skill your agent uses when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions
obra/superpowers
Has the agent carry out an implementation plan itself, task by task in the current session, keeping a ledger, proving each step with a test and ending with one whole-branch review.
Azure/azqr
Create new skills, modify and improve existing skills, and measure skill performance.
anthropics/claude-plugins-official
Explains how to write agents for Claude Code plugins: the markdown file with YAML frontmatter, trigger descriptions, model and color settings, and system prompt design.
DemonDamon/AgenticX
A skill your agent uses when scanning an arbitrary Git repository to create, refresh, or selectively update Markdown summaries of code modules, especially when changes must be traced from each…
DemonDamon/AgenticX
Guide for creating persistent Near desktop digital avatars (数字分身) via natural-language interview and the createavatar tool.
DemonDamon/AgenticX
Guide for deploying AgenticX agents to production including Docker containerization, Kubernetes orchestration, Volcengine AgentKit cloud deployment, and API server setup.
DemonDamon/AgenticX
Guide for setting up and using the AgenticX memory system including Mem0 integration, long-term memory, context management, and memory-enhanced agents.
DemonDamon/AgenticX
A skill your agent uses when the user asks about verifiable quantitative facts (stock prices, financial indicators, macro data, company registry, academic metrics, legal statutes) that must come…
DemonDamon/AgenticX
AgenticX zero-to-hero quickstart guide. An agent skill from DemonDamon/AgenticX.
Categories
Guide for using the A2A (Agent-to-Agent) communication protocol in AgenticX including agent discovery, skill invocation, remote agent cards, and distributed agent systems. Agenticx A2a Connector is an agent skill from DemonDamon/AgenticX. Guide for using the A2A (Agent-to-Agent) communication protocol in AgenticX including agent discovery, skill invocation, remote agent cards, and distributed agent systems.
Agenticx A2a Connector fits situations like: the user wants agents to communicate with each other; set up distributed agent systems; invoke remote agent skills; build agent-to-agent workflows.
Run `npx skills add DemonDamon/AgenticX --skill agenticx-a2a-connector -a claude-code`. Or copy the skill folder (agenticx/skills/agenticx-a2a-connector in DemonDamon/AgenticX) into .claude/skills/agenticx-a2a-connector in your project. Claude Code loads it when a task matches its description.
Run `npx skills add DemonDamon/AgenticX --skill agenticx-a2a-connector -a codex`. Or copy the skill folder (agenticx/skills/agenticx-a2a-connector in DemonDamon/AgenticX) into .agents/skills/agenticx-a2a-connector in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add DemonDamon/AgenticX --skill agenticx-a2a-connector -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-a2a-connector, .gemini/skills/agenticx-a2a-connector, .github/skills/agenticx-a2a-connector and .opencode/skills/agenticx-a2a-connector in your project.
SKILL.md names no scripts, command-line tools or credentials: Agenticx A2a Connector is instructions for the agent only. Our summary lists: Python 3.
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.
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.
Agenticx A2a Connector 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.
About 1.3k tokens (SKILL.md is roughly 5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Agenticx A2a Connector: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 297k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
DemonDamon (a GitHub user) maintains it in DemonDamon/AgenticX, which has 340 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 10, 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.