# Airut Sandboxed Claude Code over email and Slack. Named "Airut" (Finnish: herald/messenger). Created by [Pyry Haulos](https://github.com/phaulos). ## What It Does Send a message — email or Slack — with instructions, and get results back in the same thread. Starting a new task is as simple as starting a new conversation. Airut provisions an isolated container, runs Claude Code, and cleans up when done. Self-hosted: your code and conversations never leave your infrastructure. ``` You → Email/Slack → Airut → Claude Code (container) → PR → Reply → You ``` **This project is developed entirely through its own workflow** — from the first working version onward, all development has been done by sending instructions to Airut and reviewing the resulting PRs. **Key features:** - **Zero-friction tasking**: Send a message to start a task. No workspace setup, no session management, no cleanup. Airut provisions an isolated environment automatically and tears it down when done. - **Defense-in-depth sandboxing**: Container isolation, network allowlist via proxy, and credential masking limit blast radius when agents run with full autonomy. - **Conversation persistence**: Reply to continue where you left off. Claude Code session context is maintained across messages. - **Task-to-PR foundation**: Combined with repo configuration (`CLAUDE.md`, CI tooling, branch protection), enables end-to-end autonomous workflows where agents push PRs for human review. - **Email and Slack channels**: Authenticate via DMARC (email) or workspace membership (Slack), with sender authorization per repo. - **Scheduled tasks**: Run Claude on a cron schedule — daily code reviews, nightly health checks, weekly summaries. Results are delivered via email, and recipients can reply to continue the conversation. - **Web dashboard**: Monitor running tasks, view network activity logs, and configure the server. ## Why Email and Slack? ### Mature Tools You Already Use Email and Slack already handle threading, search, notifications, and mobile access. Agent interactions show up where your team already works. Send a message from any device, get results when ready. No terminal session to keep open, no custom client to install. ### Parallel Agent Management Running multiple Claude Code agents requires isolation — each needs its own workspace, session state, and credentials. Airut provides this automatically: each conversation is fully isolated, and a configurable thread pool manages concurrent execution. ### Code Review as Feedback The recommended workflow has agents push PRs for review. You review the PR, leave comments, then reply to the thread. The agent reads review feedback and iterates. This provides: - Human oversight before code lands - Natural checkpoint for feedback - Audit trail via git history ``` You: "Add user authentication" ↓ Agent: works → pushes PR → replies with PR link ↓ You: review PR, leave comments ↓ You: reply "Address the review comments" ↓ Agent: reads comments → fixes → updates PR → replies ↓ You: approve and merge ``` ### CI Sandboxing When an agent pushes a PR, CI workflows run the agent's code on the runner — outside the container sandbox. The `airut-sandbox` CLI and `airutorg/sandbox-action` GitHub Action solve this by running CI commands inside the same container isolation and network allowlisting used by the gateway. See [doc/ci-sandbox.md](doc/ci-sandbox.md) for setup and security requirements. ### Example project The [airut.org website](https://github.com/airutorg/website) is a minimal Airut-managed repository that demonstrates the message-to-deploy workflow with Cloudflare Pages. Its `.airut/` directory and `CLAUDE.md` serve as a good starting point for onboarding your own projects. ### Screenshots

Dashboard — task monitoring
Dashboard showing running and completed tasks

Config editor — server settings
Config editor showing global server settings

Network log — live request tracking
Network log showing allowed and blocked requests during task execution

## Documentation ### High-Level Documentation - **[doc/architecture.md](doc/architecture.md)** — System architecture and data flow - **[doc/security.md](doc/security.md)** — Security model (channel auth, isolation, credentials) - **[doc/execution-sandbox.md](doc/execution-sandbox.md)** — Container isolation and resource limits - **[doc/network-sandbox.md](doc/network-sandbox.md)** — Network allowlist and proxy architecture - **[doc/deployment.md](doc/deployment.md)** — Installation and server configuration - **[doc/repo-onboarding.md](doc/repo-onboarding.md)** — Onboarding new repositories - **[doc/agentic-operation.md](doc/agentic-operation.md)** — Message-to-PR workflow patterns - **[doc/periodic-tasks.md](doc/periodic-tasks.md)** — Scheduled tasks (cron, prompt/script modes, email delivery) - **[doc/ci-sandbox.md](doc/ci-sandbox.md)** — Sandboxing CI with `airut-sandbox` and `airutorg/sandbox-action` ### Channel Setup - **[doc/email-setup.md](doc/email-setup.md)** — Email provider selection, DMARC, and authorization - **[doc/slack-setup.md](doc/slack-setup.md)** — Slack app creation, tokens, and authorization rules - **[doc/m365-oauth2.md](doc/m365-oauth2.md)** — Microsoft 365 OAuth2 for email (IMAP/SMTP) ### Implementation Specifications - **[spec/](spec/README.md)** — Detailed specs for channels, config schema, dashboard, and tooling ### Agent Instructions - **[CLAUDE.md](CLAUDE.md)** — Operating instructions for Claude Code agents ## Quick Start ### Prerequisites - Linux (dedicated VM recommended, Debian 13 tested) - [uv](https://docs.astral.sh/uv/), Git, and Podman (rootless) - At least one channel per repository: - **Email**: Dedicated email account with IMAP/SMTP access - **Slack**: Slack workspace with app installation permissions ### Install ```bash uv tool install airut # Install from PyPI airut check # Validate system dependencies airut install-service # Install and start systemd service ``` ### Configure Open `http://localhost:5200` in your browser. Click **Configure** to open the config editor. From there you can add repositories, set up channels, configure credentials, and adjust resource limits. See [deployment.md](doc/deployment.md) for the full guide including channel setup, secrets management, and git credentials. [Onboard your repository](doc/repo-onboarding.md) by creating the `.airut/` directory with container Dockerfile, network allowlist, and `CLAUDE.md` instructions. > **Alternative:** You can also edit `~/.config/airut/airut.yaml` directly. See > [`airut.example.yaml`](config/airut.example.yaml) for the full schema. Changes > are picked up automatically via file watching. ### Send Your First Message **Email:** ``` To: airut@example.com Subject: Fix the typo in README Please fix the typo in the README file. ``` **Slack:** Open a new chat with your Airut app and type your instructions. ### Update ```bash airut update # Stop service, upgrade, restart ``` ## Project Structure ``` airut/ ├── CLAUDE.md # Agent operating instructions ├── doc/ # High-level documentation ├── spec/ # Implementation specifications ├── .airut/ # Repo-specific Airut configuration ├── config/ # Server configuration templates ├── airut/ # Library code │ ├── _bundled/ # Static resources bundled into wheel │ │ ├── assets/ # Logo SVG │ │ └── proxy/ # Network sandbox (proxy filter, DNS, AWS signing) │ ├── conversation/ # Conversation directory layout and preparation │ ├── dashboard/ # Web dashboard server │ ├── gateway/ # Protocol-agnostic gateway service │ ├── gh/ # GitHub API wrappers │ └── sandbox/ # Sandboxed execution (container, proxy, session, image) ├── scripts/ # CLI tools │ ├── airut.py # CLI entry point (uv run airut) │ ├── ci.py # Local CI runner │ └── pr.py # PR workflow tool └── tests/ # Unit and integration tests ``` ## Testing Airut enforces **100% unit test coverage** in CI — every line must be tested, with no skips or exceptions. Integration tests verify end-to-end workflows including email, Slack, config reload, and session recovery. Config schema migrations are independently tested for correctness and idempotency. See [doc/testing.md](doc/testing.md) for details. ## Development This project is developed with Claude Code. See [CLAUDE.md](CLAUDE.md) for conventions and workflow tools. ```bash # Run local CI (auto-fix + all checks) uv run scripts/ci.py --fix # Monitor PR status uv run scripts/pr.py ci --wait -v uv run scripts/pr.py review -v ``` ## License This project is licensed under the MIT License. See [LICENSE](LICENSE) for details.