sidecar-cowork-plugins

Sidecar Cowork Plugins

AI-powered tools for associations and the communities they serve.

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Our Mission

We believe that every association deserves access to expert-level tools, regardless of their size or budget. Professional societies, trade associations, enthusiast clubs, fraternal organizations, chambers of commerce, and nonprofit organizations do vital work connecting communities, advancing professions, and advocating for important causes.

This repository provides free, open-source Claude Cowork plugins that encode decades of association management best practices into AI-powered tools anyone can use. No infrastructure required. No vendor lock-in. Just immediate value.

flowchart LR
    subgraph "Free Standalone Value"
        A[Association Professional] --> B[Sidecar Cowork Plugin]
        B --> C[Expert-Quality Output]
    end

    subgraph "Enhanced with MemberJunction"
        D[MemberJunction Platform] --> E[MCP Server]
        E --> B
        B --> F[Automated Workflows]
        F --> G[Connected Data]
    end

    style A fill:#e1f5fe
    style C fill:#c8e6c9
    style G fill:#c8e6c9

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Available Plugins

Plugin	Description	Status
Sidecar Association Coworker	16 commands + 12 skills for all types of associations	✅ Ready
MJ Admin/Developer	Tools for MemberJunction developers - entity queries, migrations, codegen	🚧 Planned
MJ Agent Builder	Create, test, and iterate on MJ AI agents through Cowork	🚧 Planned

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Architecture

Each plugin follows the Claude Cowork standard structure with no runtime code and no build steps:

plugin-name/
├── .claude-plugin/
│   └── plugin.json      # Plugin metadata and configuration
├── .mcp.json            # MCP server integrations
├── commands/            # Slash commands (user-invoked actions)
│   ├── command-one.md
│   └── command-two.md
├── skills/              # Domain knowledge (markdown expertise)
│   └── skill-name/
│       └── SKILL.md
└── README.md            # Plugin documentation

flowchart TB
    subgraph Plugin["Sidecar Cowork Plugin"]
        Commands["📋 Slash Commands<br/><i>User-invoked actions</i>"]
        Skills["🧠 Skills<br/><i>Domain knowledge</i>"]
        MCP["🔌 MCP Connectors<br/><i>External integrations</i>"]
    end

    subgraph Cowork["Claude Cowork"]
        AI["Claude AI"]
    end

    subgraph External["External Services"]
        Search["Web Search"]
        Fetch["Content Fetch"]
        Memory["Persistent Memory"]
        MJMCP["MemberJunction MCP"]
    end

    Commands --> AI
    Skills --> AI
    MCP --> Search
    MCP --> Fetch
    MCP --> Memory
    MCP --> MJMCP

    style Plugin fill:#fff3e0
    style Cowork fill:#e3f2fd
    style External fill:#f3e5f5

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Getting Started

1. Add the Marketplace

In Claude Cowork, add the Sidecar plugin marketplace:

https://raw.githubusercontent.com/MemberJunction/co-work-plugins/main/.claude-plugin/marketplace.json

2. Use Slash Commands

Invoke commands directly in your conversation:

/member-onboarding corporate --tier=premium --industry=healthcare

/board-prep regular --date="2024-03-15" --format=hybrid

/event-planning annual-conference --scale=large --budget="$500k"

3. Leverage Domain Expertise

The plugin's skills automatically inform Claude's responses with association management best practices, governance frameworks, and industry knowledge.

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The Value Ladder

Our plugins are designed with a tiered value approach:

graph TB
    subgraph Tier1["🆓 Tier 1: Standalone Value"]
        T1A["Works immediately"]
        T1B["No infrastructure needed"]
        T1C["Expert-quality output"]
        T1D["Free forever"]
    end

    subgraph Tier2["⚡ Tier 2: Enhanced with MCP"]
        T2A["Web search integration"]
        T2B["Content analysis"]
        T2C["Persistent memory"]
    end

    subgraph Tier3["🚀 Tier 3: MemberJunction Integration"]
        T3A["Connected member data"]
        T3B["Automated workflows"]
        T3C["Real-time analytics"]
        T3D["Full platform power"]
    end

    Tier1 --> Tier2
    Tier2 --> Tier3

    style Tier1 fill:#c8e6c9
    style Tier2 fill:#fff9c4
    style Tier3 fill:#bbdefb

Start free. Grow when ready.

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Why We Built This

Associations operate at the intersection of community, commerce, and cause. They: