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lukilabs/craft-agents-oss

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README

Craft Agents

License Contributor Covenant

How it Works (Video)

To understand what Craft Agents does and how it works watch this video.

Demo Video

Click Here (or on the image above) to watch the video on YouTube →

Why Craft Agents was built

Craft Agents is a tool we built so that we (at craft.do) can work effectively with agents. It enables intuitive multitasking, no-fluff connection to any API or Service, sharing sessions, and a more document (vs code) centric workflow - in a beautiful and fluid UI.

It uses the Claude Agent SDK and the Pi SDK side by side—building on what we found great and improving areas where we've desired improvements.

It's built with Agent Native software principles in mind, and is highly customisable out of the box. One of the first of its kind.

Craft Agents is open source under the Apache 2.0 license - so you are free to remix, change anything. And that's actually possible. We ourselves are building Craft Agents with Craft Agents only - no code editors - so really, any customisation is just a prompt away.

We built Craft Agents because we wanted a better, more opinionated (and preferably non-CLI way) of working with the most powerful agents in the world. We'll continue to improve it, based on our experiences and intuition.

image

Things that are hard to believe "just work"

How do I connect to Linear, Gmail, Slack...? Tell the agent "add Linear as a source." It finds public APIs and MCP servers, reads their docs, sets up credentials, and configures everything. No config files, no setup wizards.

Check out how I just connected to Slack →

I already have my MCP config JSON. Paste it. The agent handles the rest.

What about local MCPs? Fully supported. Stdio-based MCP servers run as local subprocesses on your machine. Point it at an npx command, a Python script, or any local binary. It just works.

Can it handle custom APIs? Yes. Paste an OpenAPI spec, some endpoint URLs, screenshots of docs, whatever you have. It figures it out and guides you through the rest.

APIs too? Not just MCPs? Craft Agents connects to anything. We have it hooked up to a direct Postgres DB behind a jumpbox. Skills + Sources = magic.

How do I import my Claude Code skills and MCPs? Tell the agent you want to import your skills from Claude Code. It handles the migration.

Here I imported all my skills in one go →

How do I create a new skill? Describe what the skill should do, give it context. The agent takes care of the rest.

Do I need to restart after changes? No. Everything is instant. Mention new skills or sources with @, even mid-conversation.

So I can just ask it anything? Yes. That's the core idea behind agent-native software. You describe what you want, and it figures out how. That's a good use of tokens.

Installation

One-Line Install (Recommended)

macOS / Linux: bash curl -fsSL https://agents.craft.do/install-app.sh | bash

Windows (PowerShell): powershell irm https://agents.craft.do/install-app.ps1 | iex

Build from Source

bash git clone https://github.com/lukilabs/craft-agents-oss.git cd craft-agents-oss bun install bun run electron:start

Features

Quick Start

  1. Launch the app after installation
  2. Choose API Connection: Use Anthropic (API key or Claude Max), Google AI Studio, ChatGPT Plus (Codex OAuth), or GitHub Copilot OAuth
  3. Create a workspace: Set up a workspace to organize your sessions
  4. Connect sources (optional): Add MCP servers, REST APIs, or local filesystems
  5. Start chatting: Create sessions and interact with Claude

Desktop App Features

Session Management

Sources

Connect external data sources to your workspace:

| Type | Examples | |------|----------| | MCP Servers | Craft, Linear, GitHub, Notion, custom servers | | REST APIs | Google (Gmail, Calendar, Drive, YouTube, Search Console), Slack, Microsoft | | Local Files | Filesystem, Obsidian vaults, Git repos |

Permission Modes

| Mode | Display | Behavior | |------|---------|----------| | safe | Explore | Read-only, blocks all write operations | | ask | Ask to Edit | Prompts for approval (default) | | allow-all | Auto | Auto-approves all commands |

Use SHIFT+TAB to cycle through modes in the chat interface.

Keyboard Shortcuts

| Shortcut | Action | |----------|--------| | Cmd+N | New chat | | Cmd+1/2/3 | Focus sidebar/list/chat | | Cmd+/ | Keyboard shortcuts dialog | | SHIFT+TAB | Cycle permission modes | | Enter | Send message | | Shift+Enter | New line |

Remote Server (Headless)

Craft Agents can run as a headless server on a remote machine (e.g., a Linux VPS), with the desktop app connecting as a thin client. This lets you keep long-running sessions alive, access them from multiple machines, and run compute-heavy tasks on a powerful server.

Quick Start

From the monorepo root:

```bash

Generate a token and start the server

CRAFT_SERVER_TOKEN=$(openssl rand -hex 32) bun run packages/server/src/index.ts ```

The server prints the connection details on startup:

CRAFT_SERVER_URL=ws://203.0.113.5:9100 CRAFT_SERVER_TOKEN=<generated-token>

Copy these values and use them to connect the desktop app.

Connecting the Desktop App

Launch the Electron app in thin-client mode by passing the server URL and token:

bash CRAFT_SERVER_URL=wss://203.0.113.5:9100 CRAFT_SERVER_TOKEN=<token> bun run electron:start

In thin-client mode, the desktop app renders the UI but all session logic, tool execution, and LLM calls run on the remote server.

Environment Variables

| Variable | Required | Default | Description | |----------|----------|---------|-------------| | CRAFT_SERVER_TOKEN | Yes | — | Bearer token for client authentication | | CRAFT_RPC_HOST | No | 127.0.0.1 | Bind address (0.0.0.0 for remote access) | | CRAFT_RPC_PORT | No | 9100 | Bind port | | CRAFT_RPC_TLS_CERT | No | — | Path to PEM certificate file (enables wss://) | | CRAFT_RPC_TLS_KEY | No | — | Path to PEM private key file (required with cert) | | CRAFT_RPC_TLS_CA | No | — | Path to PEM CA chain file (optional, for client cert verification) | | CRAFT_DEBUG | No | false | Enable debug logging |

TLS (Recommended for Remote Access)

When exposing the server over the network, TLS encrypts the WebSocket connection (wss:// instead of ws://).

Generate a self-signed certificate (development/testing):

```bash ./scripts/generate-dev-cert.sh

Creates certs/cert.pem and certs/key.pem (valid 365 days)

```

Start the server with TLS:

bash CRAFT_SERVER_TOKEN=<token> \ CRAFT_RPC_HOST=0.0.0.0 \ CRAFT_RPC_TLS_CERT=certs/cert.pem \ CRAFT_RPC_TLS_KEY=certs/key.pem \ bun run packages/server/src/index.ts

The server will print CRAFT_SERVER_URL=wss://<your-public-ip>:9100.

For production, use certificates from a trusted CA (e.g., Let's Encrypt) or place the server behind a reverse proxy (nginx, Caddy) that terminates TLS.

Docker

bash docker run -d \ -p 9100:9100 \ -e CRAFT_SERVER_TOKEN=<token> \ -e CRAFT_RPC_HOST=0.0.0.0 \ -v craft-data:/root/.craft-agent \ craft-agents-server

To enable TLS in Docker, mount your certificates and set the env vars:

bash docker run -d \ -p 9100:9100 \ -e CRAFT_SERVER_TOKEN=<token> \ -e CRAFT_RPC_HOST=0.0.0.0 \ -e CRAFT_RPC_TLS_CERT=/certs/cert.pem \ -e CRAFT_RPC_TLS_KEY=/certs/key.pem \ -v ./certs:/certs:ro \ -v craft-data:/root/.craft-agent \ craft-agents-server

CLI Client

A terminal client that connects to a running Craft Agent server over WebSocket (ws:// or wss://). Use it for scripting, CI/CD pipelines, server validation, or when you prefer the command line.

Installation

```bash

From the monorepo (requires Bun)

bun run apps/cli/src/index.ts --help

Or add to your PATH

alias craft-cli="bun run $(pwd)/apps/cli/src/index.ts" ```

Connection

The CLI reads connection details from flags or environment variables:

```bash

Via environment (set once)

export CRAFT_SERVER_URL=ws://127.0.0.1:9100 export CRAFT_SERVER_TOKEN=

Or via flags

craft-cli --url ws://127.0.0.1:9100 --token ping ```

For TLS connections (wss://), use --tls-ca <path> for self-signed certificates.

Commands

| Command | Description | |---------|-------------| | ping | Verify connectivity (clientId + latency) | | health | Check credential store health | | versions | Show server runtime versions | | workspaces | List workspaces | | sessions | List sessions in workspace | | connections | List LLM connections | | sources | List configured sources | | session create | Create a session (--name, --mode) | | session messages <id> | Print session message history | | session delete <id> | Delete a session | | send <id> <message> | Send message and stream AI response | | cancel <id> | Cancel in-progress processing | | invoke <channel> [args] | Raw RPC call with JSON args | | listen <channel> | Subscribe to push events (Ctrl+C to stop) | | run <prompt> | Self-contained: spawn server, run prompt, stream response, exit | | --validate-server | 21-step integration test (auto-spawns server if no --url) |

Run Command Flags

| Flag | Default | Description | |------|---------|-------------| | --workspace-dir <path> | — | Register a workspace directory before running | | --source <slug> | — | Enable a source (repeatable) | | --output-format <fmt> | text | Output format: text or stream-json | | --mode <mode> | allow-all | Permission mode for the session | | --no-cleanup | false | Skip session deletion on exit | | --server-entry <path> | — | Custom server entry point | | --provider <name> | anthropic | LLM provider (anthropic, openai, google, openrouter, groq, mistral, xai, etc.) | | --model <id> | (provider default) | Model ID (e.g., claude-sonnet-4-5-20250929, gpt-4o, gemini-2.0-flash) | | --api-key <key> | — | API key (or $LLM_API_KEY, or provider-specific env var) | | --base-url <url> | — | Custom API endpoint for proxies or self-hosted models |

The run command is fully self-contained — it spawns a headless server, creates a session, sends the prompt, streams the response, and exits. No separate server setup needed. An API key is resolved from --api-key, $LLM_API_KEY, or a provider-specific env var (e.g., $ANTHROPIC_API_KEY, $OPENAI_API_KEY).

Examples

```bash

Quick connectivity check

craft-cli ping

List sessions (human-readable)

craft-cli sessions

Send a message and stream the AI response

craft-cli send abc-123 "What files are in the current directory?"

Pipe input

echo "Summarize this" | craft-cli send abc-123

JSON output for scripting

craft-cli --json workspaces | jq '.[].name'

Self-contained run (spawns its own server)

craft-cli run "Summarize the README" craft-cli run --workspace-dir ./my-project --source github "List open PRs"

Multi-provider support

craft-cli run --provider openai --model gpt-4o "Summarize this repo" GOOGLE_API_KEY=... craft-cli run --provider google --model gemini-2.0-flash "Hello" craft-cli run --provider anthropic --base-url https://openrouter.ai/api/v1 --api-key $OR_KEY "Hello"

Validate the server (auto-spawns if no --url)

craft-cli --validate-server craft-cli --validate-server --url ws://127.0.0.1:9100 --token ```

Architecture

craft-agent/ ├── apps/ │ ├── cli/ # Terminal client (CLI) │ └── electron/ # Desktop GUI (primary) │ └── src/ │ ├── main/ # Electron main process │ ├── preload/ # Context bridge │ └── renderer/ # React UI (Vite + shadcn) └── packages/ ├── core/ # Shared types └── shared/ # Business logic └── src/ ├── agent/ # CraftAgent, permissions ├── auth/ # OAuth, tokens ├── config/ # Storage, preferences, themes ├── credentials/ # AES-256-GCM encrypted storage ├── sessions/ # Session persistence ├── sources/ # MCP, API, local sources └── statuses/ # Dynamic status system

Development

```bash

Hot reload development

bun run electron:dev

Build and run

bun run electron:start

Type checking

bun run typecheck:all

Debug logging (writes to ~/Library/Logs/@craft-agent/electron/)

Logs are automatically enabled in development

```

Environment Variables

OAuth integrations (Slack, Microsoft) require credentials baked into the build. Create a .env file:

bash MICROSOFT_OAUTH_CLIENT_ID=your-client-id SLACK_OAUTH_CLIENT_ID=your-slack-client-id SLACK_OAUTH_CLIENT_SECRET=your-slack-client-secret

Note: Google OAuth credentials are NOT baked into the build. Users provide their own credentials via source configuration. See the Google OAuth Setup section below.

Google OAuth Setup (Gmail, Calendar, Drive, YouTube, Search Console)

Google integrations require you to create your own OAuth credentials. This is a one-time setup.

1. Create a Google Cloud Project

  1. Go to Google Cloud Console
  2. Create a new project (or select an existing one)
  3. Note your Project ID

2. Enable Required APIs

Go to APIs & Services → Library and enable the APIs you need: - Gmail API - for email integration - Google Calendar API - for calendar integration - Google Drive API - for file storage integration

3. Configure OAuth Consent Screen

  1. Go to APIs & Services → OAuth consent screen
  2. Select External user type (unless you have Google Workspace)
  3. Fill in required fields:
  4. App name: e.g., "My Craft Agent"
  5. User support email: your email
  6. Developer contact: your email
  7. Add scopes (optional - can leave default)
  8. Add yourself as a test user (required for External apps in testing mode)
  9. Complete the wizard

4. Create OAuth Credentials

  1. Go to APIs & Services → Credentials
  2. Click Create Credentials → OAuth Client ID
  3. Application type: Desktop app
  4. Name: e.g., "Craft Agent Desktop"
  5. Click Create
  6. Note the Client ID and Client Secret

5. Configure in Craft Agent

When setting up a Google source (Gmail, Calendar, Drive, YouTube, Search Console, etc.), add these fields to your source's config.json:

json { "api": { "googleService": "gmail", "googleOAuthClientId": "your-client-id.apps.googleusercontent.com", "googleOAuthClientSecret": "your-client-secret" } }

Or simply tell the agent you want to connect Gmail/Calendar/Drive - it will guide you through entering your credentials.

Security Notes

Supported LLM Providers

Craft Agents supports multiple ways to connect to LLM providers:

Direct Connections

| Provider | Auth | Notes | |----------|------|-------| | Anthropic | API key or Claude Max/Pro OAuth | Direct Claude connection via the Claude Agent SDK | | Google AI Studio | API key | Gemini models with native Google Search grounding built in | | ChatGPT Plus / Pro | Codex OAuth | Sign in with your ChatGPT subscription — uses OpenAI's Codex models | | GitHub Copilot | OAuth (device code) | One-click authentication with your Copilot subscription |

Third-Party & Self-Hosted Providers

Additional providers are supported through the Claude / Anthropic API Key connection by choosing a custom endpoint:

| Provider | Endpoint | Notes | |----------|----------|-------| | OpenRouter | https://openrouter.ai/api | Access Claude, GPT, Llama, Gemini, and hundreds of other models through a single API key. Use provider/model-name format (e.g. anthropic/claude-opus-4.7). | | Vercel AI Gateway | https://ai-gateway.vercel.sh | Route requests through Vercel's AI Gateway with built-in observability and caching. | | Ollama | http://localhost:11434 | Run open-source models locally. No API key required. | | Custom | Any URL | Any OpenAI-compatible or Anthropic-compatible endpoint. |

Architecture

Craft Agents uses two agent backends:

Configuration

Configuration is stored at ~/.craft-agent/:

~/.craft-agent/ ├── config.json # Main config (workspaces, LLM connections) ├── credentials.enc # Encrypted credentials (AES-256-GCM) ├── preferences.json # User preferences ├── theme.json # App-level theme └── workspaces/ └── {id}/ ├── config.json # Workspace settings ├── theme.json # Workspace theme override ├── automations.json # Event-driven automations ├── sessions/ # Session data (JSONL) ├── sources/ # Connected sources ├── skills/ # Custom skills └── statuses/ # Status configuration

Automations

Automations let you automate workflows by triggering actions when events happen — labels change, sessions start, tools run, or on a cron schedule.

Just ask the agent: - "Set up a daily standup briefing every weekday at 9am" - "Notify me when a session is labelled urgent" - "Track permission mode changes and summarise them" - "Every Friday at 5pm, summarise this week's completed tasks"

Or configure manually in ~/.craft-agent/workspaces/{id}/automations.json:

json { "version": 2, "automations": { "SchedulerTick": [ { "cron": "0 9 * * 1-5", "timezone": "America/New_York", "labels": ["Scheduled"], "actions": [ { "type": "prompt", "prompt": "Check @github for new issues assigned to me" } ] } ], "LabelAdd": [ { "matcher": "^urgent$", "actions": [ { "type": "prompt", "prompt": "An urgent label was added. Triage the session and summarise what needs attention." } ] } ] } }

Prompt actions create a new agent session with a prompt. They support @mentions for sources and skills, and environment variables like $CRAFT_LABEL and $CRAFT_SESSION_ID are expanded automatically.

Supported events: LabelAdd, LabelRemove, PermissionModeChange, FlagChange, SessionStatusChange, SchedulerTick, PreToolUse, PostToolUse, SessionStart, SessionEnd, and more.

See the Automations documentation for the full reference.

Advanced Features

Large Response Handling

Tool responses exceeding ~60KB are automatically summarized using Claude Haiku with intent-aware context. The _intent field is injected into MCP tool schemas to preserve summarization focus.

Deep Linking

External apps can navigate using craftagents:// URLs:

craftagents://allSessions # All sessions view craftagents://allSessions/session/session123 # Specific session craftagents://settings # Settings craftagents://sources/source/github # Source info craftagents://action/new-chat # Create new session

Tech Stack

| Layer | Technology | |-------|------------| | Runtime | Bun | | AI | @anthropic-ai/claude-agent-sdk | | AI (Pi) | Pi SDK agent server | | Desktop | Electron + React | | UI | shadcn/ui + Tailwind CSS v4 | | Build | esbuild (main) + Vite (renderer) | | Credentials | AES-256-GCM encrypted file storage |

Troubleshooting

Debug Mode

To launch the packaged app with verbose logging enabled, use -- --debug (note the double dash separator):

macOS: bash /Applications/Craft\ Agents.app/Contents/MacOS/Craft\ Agents -- --debug

Windows (PowerShell): powershell & "$env:LOCALAPPDATA\Programs\@craft-agentelectron\Craft Agents.exe" -- --debug

Linux: bash ./craft-agents -- --debug

Logs are written to: - macOS: ~/Library/Logs/@craft-agent/electron/main.log - Windows: %APPDATA%\@craft-agent\electron\logs\main.log - Linux: ~/.config/@craft-agent/electron/logs/main.log

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

Third-Party Licenses

This project uses the Claude Agent SDK, which is subject to Anthropic's Commercial Terms of Service.

Trademark

"Craft" and "Craft Agents" are trademarks of Craft Docs Ltd. See TRADEMARK.md for usage guidelines.

Contributing

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

Security

Local MCP Server Isolation

When spawning local MCP servers (stdio transport), sensitive environment variables are filtered out to prevent credential leakage to subprocesses. Blocked variables include:

To explicitly pass an env var to a specific MCP server, use the env field in the source config.

To report security vulnerabilities, please see SECURITY.md.

File Structure

Unable to fetch file structure.

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