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Agent skill

Clade Reference Architecture

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Build Claude Code plugins — skills, agents, MCP servers, hooks, and slash commands.

MITAuto-check passedAgent Workflows

Install Clade Reference Architecture

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill clade-reference-architecture -a claude-code

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

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace clade-reference-architecture --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/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/clade-reference-architecture .claude/skills/clade-reference-architecture && 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/

Facts

Skill name
clade-reference-architecture
GitHub stars
2.8k
Token cost
~1.6k tokens
SKILL.md length
313 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Build Claude Code plugins — skills, agents, MCP servers, hooks, and slash commands.

  • Working with reference-architecture patterns
  • SKILL.md covers Overview, Prerequisites, Instructions and Plugin Structure, plus 11 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • With claude code plugin

What it does

Clade Reference Architecture is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build Claude Code plugins — skills, agents, MCP servers, hooks, and slash commands. Use when working with reference-architecture patterns. The complete guide to extending Claude Code with the Anthropic plugin system. Trigger with "claude code plugin", "build a skill", "create mcp server", "anthropic plugin architecture", "claude code hooks".

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/one-pager.md`). Compatibility notes: Designed for Claude Code

It sits in Agent Workflows, covering Hooks and plugins and MCP servers. It works with Model Context Protocol. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Working with reference-architecture patterns
  • With claude code plugin
  • Create mcp server
  • Anthropic plugin architecture

Example prompts

  • “claude code plugin”
  • “build a skill”
  • “create mcp server”
  • “/clade-reference-architecture”

Requirements

  • Node.js
  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(npm:*)

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Write
    • Edit
    • Bash(npm:*)

    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 yaml, typescript and json).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • code.claude.com
    • modelcontextprotocol.io

    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.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Clade Reference Architecture loads about 1.6k tokens when it runs, and up to ~2.1k if it reads all its reference files. Until then it costs about 93 tokens; SKILL.md has 313 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~93
When it runs · the whole SKILL.md, loaded when a task matches
~1.6k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.1k

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 jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 313 words, ~1,619 tokens.

Download SKILL.mdSave it as .claude/skills/clade-reference-architecture/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
clade-reference-architecture
description
Build Claude Code plugins — skills, agents, MCP servers, hooks, and slash commands. Use when working with reference-architecture patterns. The complete guide to extending Claude Code with the Anthropic plugin system. Trigger with "claude code plugin", "build a skill", "create mcp server", "anthropic plugin architecture", "claude code hooks".
allowed-tools
Read, Write, Edit, Bash(npm:*)
compatibility
Designed for Claude Code
version
1.1.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, anthropic, claude-code, plugins, skills, mcp

Claude Code Plugin Architecture

Overview

Claude Code has a plugin system with 4 extension points: skills (auto-activating knowledge), commands (slash commands), agents (specialized sub-agents), and MCP servers (tool providers). This skill covers building all four.

Prerequisites

  • A supported Claude Code environment and an isolated plugin workspace
  • A declared ownership boundary for filesystem, network, and credential access
  • Validation tooling for manifests, skill metadata, commands, agents, and MCP
  • A rollback plan that can disable a plugin without deleting user state

Instructions

Start with the smallest extension point that meets the requirement, declare only the tools and permissions it needs, and validate it locally before adding it to a marketplace or shared environment. Test discovery, activation, failure, and rollback paths; do not expose secrets through examples, environment files, logs, or MCP response payloads.

Plugin Structure

my-plugin/
├── .claude-plugin/
│   └── plugin.json          # Required: name, version, description, author
├── skills/
│   └── my-skill/
│       └── SKILL.md          # Auto-activating skill
├── commands/
│   └── my-command.md         # Slash command (/my-command)
├── agents/
│   └── my-agent.md           # Custom agent
└── README.md

Building a Skill (SKILL.md)

yaml
---
name: my-skill
description: |
  When to activate this skill. Include trigger phrases so Claude
  knows when to use it. Be specific about the problem it solves.
allowed-tools: Read, Write, Edit, Bash(npm:*)
version: 1.0.0
author: Your Name <you@example.com>
license: MIT
compatible-with: claude-code
tags: [category, topic]
---

# Skill Title

## Overview
What this skill does and when to use it.

## Prerequisites
- Claude Code installed
- Understanding of Markdown and YAML frontmatter
- For MCP servers: Node.js 18+ and `@modelcontextprotocol/sdk`

## Instructions
Step-by-step instructions Claude follows when this skill activates.

### Step 1: Do the thing
Explain what to do with code examples.

## Output
What the user should expect when this skill runs.

## Error Handling
| Error | Cause | Solution |
|-------|-------|----------|
| ... | ... | ... |

Building a Slash Command

yaml
---
name: my-command
description: "Run my custom workflow"
user-invocable: true
argument-hint: "<file-path>"
allowed-tools: Read, Write, Edit, Bash(npm:*)
version: 1.0.0
---

# /my-command

When the user runs `/my-command <file-path>`, do the following:

1. Read the file at $ARGUMENTS
2. Analyze it for issues
3. Report findings

Building an Agent

yaml
---
name: my-agent
description: "Specialized agent for code review"
capabilities: ["code-review", "security-audit"]
model: sonnet
maxTurns: 10
---

# Code Review Agent

You are a code review specialist. When invoked:
1. Read the files provided
2. Check for security issues, code quality, and performance
3. Report findings with specific line references

Building an MCP Server

typescript
// src/index.ts
#!/usr/bin/env node
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';

const server = new Server({ name: 'my-tools', version: '1.0.0' }, {
  capabilities: { tools: {} },
});

server.setRequestHandler('tools/list', async () => ({
  tools: [{
    name: 'search_docs',
    description: 'Search documentation for a query',
    inputSchema: {
      type: 'object',
      properties: { query: { type: 'string' } },
      required: ['query'],
    },
  }],
}));

server.setRequestHandler('tools/call', async (request) => {
  if (request.params.name === 'search_docs') {
    const results = await searchDocs(request.params.arguments.query);
    return { content: [{ type: 'text', text: JSON.stringify(results) }] };
  }
});

const transport = new StdioServerTransport();
await server.connect(transport);

Hooks

json
// .claude/settings.json
{
  "hooks": {
    "pre-tool-call": [{
      "matcher": "Edit",
      "command": "echo 'About to edit a file'"
    }],
    "post-tool-call": [{
      "matcher": "Bash",
      "command": "echo 'Bash command completed'"
    }]
  }
}

Path Variables

VariableContextResolves To
${CLAUDE_SKILL_DIR}Skills (bash/DCI)Skill's directory
${CLAUDE_PLUGIN_ROOT}HooksPlugin root directory
${CLAUDE_PLUGIN_DATA}Persistent stateSurvives updates
$ARGUMENTSCommandsUser-provided args

Error Handling

ConditionResponse
Manifest or metadata validation failsStop installation, correct the declared contract, and rerun validation.
Plugin requests unapproved capabilityRemove or narrowly justify the capability before release.
MCP server fails or returns malformed dataFail closed, redact diagnostic output, and preserve a correlation ID.
Upgrade changes plugin behaviorDisable or pin the new version and restore the last tested release.

Output

Produce a plugin architecture record identifying the chosen extension point, manifest version, declared tools/permissions, test evidence, release owner, and rollback procedure. Treat a rendered example as illustrative only; the validated manifest and runtime behavior are the operative contract.

Examples

See Building a Skill (SKILL.md), Building a Slash Command, Building an Agent, Building an MCP Server, and Hooks configuration examples above.

Resources

Next Steps

See clade-multi-env-setup for managing plugins across environments.

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/.curated/clade-reference-architecture of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/one-pager.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

Clade Reference Architecture 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.

Clade Reference Architecture compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Clade Reference Architecture this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.6kAutomated safety check: PassMIT
MCP Integration for Pluginsanthropics/claude-plugins-official38k11 repos~3.1kAutomated safety check: PassApache-2.0
Crush Configurationcharmbracelet/crush29k—~3.7kAutomated safety check: PassCustom licence
OpenpetsOpenPetsHQ/openpets1.3k—~2.1kAutomated safety check: PassMIT
Claude Automation Recommenderanthropics/claude-plugins-official38k3 repos~2.7kAutomated safety check: NotesApache-2.0
Mistral Vibe Plugin Creatormistralai/mistral-vibe5.1k—~3.1kAutomated safety check: PassApache-2.0

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Works with

Categories

Questions about Clade Reference Architecture

What does Clade Reference Architecture do?

Build Claude Code plugins — skills, agents, MCP servers, hooks, and slash commands. Clade Reference Architecture is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build Claude Code plugins — skills, agents, MCP servers, hooks, and slash commands.

When should I use Clade Reference Architecture?

Clade Reference Architecture fits situations like: working with reference-architecture patterns; with claude code plugin; create mcp server; anthropic plugin architecture.

How do I install Clade Reference Architecture in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill clade-reference-architecture -a claude-code`. Or copy the skill folder (skills/.curated/clade-reference-architecture in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/clade-reference-architecture in your project. Claude Code loads it when a task matches its description.

How do I install Clade Reference Architecture in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill clade-reference-architecture -a codex`. Or copy the skill folder (skills/.curated/clade-reference-architecture in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/clade-reference-architecture in your project. Codex loads it when a task matches its description.

Can I use Clade Reference Architecture 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 jeremylongshore/tons-of-skills-marketplace --skill clade-reference-architecture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/clade-reference-architecture, .gemini/skills/clade-reference-architecture, .github/skills/clade-reference-architecture and .opencode/skills/clade-reference-architecture in your project.

What does Clade Reference Architecture need to run?

SKILL.md names no scripts, command-line tools or credentials: Clade Reference Architecture is instructions for the agent only. Our summary lists: Node.js. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash(npm:*). Compatibility (from SKILL.md): Designed for Claude Code.

Does Clade Reference Architecture access the network?

SKILL.md names 2 domains. As links in the text: code.claude.com and modelcontextprotocol.io. This is read from the text; nothing was executed.

Is Clade Reference Architecture 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 Clade Reference Architecture use?

Clade Reference Architecture is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Clade Reference Architecture use?

About 1.6k tokens (SKILL.md is roughly 6.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 451 tokens, read only when the agent opens those files.

What are the alternatives to Clade Reference Architecture?

Skills that share tags, products or a category with Clade Reference Architecture: MCP Integration for Plugins (anthropics/claude-plugins-official, 38k stars), Crush Configuration (charmbracelet/crush, 29k stars), Openpets (OpenPetsHQ/openpets, 1.3k stars) and Claude Automation Recommender (anthropics/claude-plugins-official, 38k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Clade Reference Architecture?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.