This release adds 3 notable features for engineering teams evaluating rollout.
✓ No known CVEs patched in this version
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Summary
AI summaryMulti‑agent orchestration for CLI coding agents with deterministic execution and Git worktree isolation.
Full changelog
v1.0.0 — first stable release
◆ The shape of the project as of 2026-03-29: a deterministic orchestrator for short-lived CLI coding agents, with file-based state and per-task model selection.
What's in 1.0
- Multi-agent orchestration for CLI coding agents. Claude Code, Codex, Gemini CLI, and Aider are first-class. Agents are short-lived (1-3 tasks, then exit); state lives in
.sdd/, not in agent memory. The orchestrator itself is deterministic code, not an LLM. - Git-worktree isolation per agent. Each agent works in its own worktree. The merge queue serialises landings with
git merge-treeconflict pre-checks. - Quality gates and a janitor. Lint / type-check / test / intent verification run as ordered hooks. The janitor cleans up worktrees, lockfiles, and orphan processes.
- Task server with bulletin board. HTTP API for task creation, completion, progress, and cross-agent findings. Single endpoint surface;
.sdd/runtime/carries the durable state. - Multi-protocol surface. ACP and A2A endpoints for agent interoperability; cluster mode with multi-node coordination; OIDC / SAML / device-flow auth; Slack integration for slash-command-driven runs.
Why we shipped 1.0 here
Bernstein started as scaffolding for self-evolution — an orchestrator that would develop itself by spawning agents that read, planned, and executed against its own backlog. By 1.0 the scaffolding was running in production against this repo. The boundary worth marking is "the orchestrator no longer crashes faster than the agents do." That's what 1.0 means for a project like this: enough invariants to leave it running unattended overnight without losing work.
Install
pipx install bernstein
Compare against pre-release: https://github.com/sipyourdrink-ltd/bernstein/compare/v0.3.0...v1.0.0
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About chernistry/bernstein
Deterministic multi-agent orchestrator for 18 CLI coding agents (Claude Code, Codex, Cursor, Aider, Gemini CLI, OpenAI Agents SDK, and more). MCP server mode (stdio + HTTP/SSE) exposes the orchestrator to any MCP client. Git worktree isolation per agent, HMAC-chained audit trail, cost-aware model routing via contextual bandit. ~11K monthly PyPI downloads, Apache 2.0.
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Beta — feedback welcome: [email protected]