Bernstein is an open-source orchestrator designed for managing multiple CLI-based coding agents in parallel, with a focus on auditability, determinism, and compliance. It addresses the challenge of coordinating numerous coding agents—such as Claude Code, Codex, Gemini CLI, aider, and over 40 others—by decomposing coding goals into discrete tasks, spawning each agent into an isolated git worktree, and running them concurrently. The tool ensures that only code changes passing lint checks, type validations, and tests are merged, providing a systematic and verifiable workflow for software development teams seeking robust traceability and security.
A core feature of Bernstein is its deterministic scheduler, implemented in plain Python, which is replayable from an HMAC-chained audit log. This log records every event in sequence, creating a tamper-evident chain of actions that can be independently verified. Each entry in the log references the previous hash, and the chain is signed using Ed25519 keys, ensuring that any attempt at tampering can be detected. Bernstein also offers per-artifact transparency logs, capability cards for agent-to-agent interactions, and supports supply-chain security measures such as SBOM and OSSF Scorecard integration. Optional features include cross-model review, a secrets broker, and a Playwright sandbox for UI agents.
The platform is flexible in its deployment, running on laptops, on-premises environments, air-gapped systems, or in cloud and hybrid setups, including support for Cloudflare Workers and Kubernetes clusters. Bernstein can operate entirely locally by default, with no data leaving the user's machine unless explicitly configured. For enterprise and compliance-focused users, audit-grade telemetry can be enabled and directed to various observability tools such as OTEL collectors, Datadog, Splunk, or S3. A web UI and progressive web app are included for monitoring and management.
0 license and is installable via pipx, brew, uv, or Docker. The tool is free to install, with sponsorship options available. Its architecture and feature set position it within the multi-agent coding orchestration category, serving teams that require rigorous audit trails, artifact lineage, and secure, verifiable automation in their coding workflows.
In the AI & ML space, bernstein takes a focused approach. It focuses on coordinating and auditing multiple CLI coding agents with compliance and traceability for development teams. It is built as an open-source project for developers. bernstein is open source under the Apache-2.0 license. The product ships for the web and the command line, and it can be self-hosted.
Behind bernstein is sipyourdrink ltd, and the product first shipped in 2026. Development happens publicly on GitHub with 596 stars and 3.3k commits in the last 90 days. PulseGate's similarity index finds few close equivalents — bernstein occupies a relatively distinct niche. Key capabilities include multi-agent orchestration, audit logging, and agent card signing.
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