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chernistry/bernstein

v1.8.10 Breaking

This release includes breaking changes for platform teams planning a safe upgrade.

Published 1mo AI Agents & Assistants
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

agent-framework agent-orchestrator agentic-ai ai-agents ai-coding aider
+14 more
anthropic claude-code cli-tool codex-cli coding-agent deterministic-scheduler hmac-audit llm mcp-server model-context-protocol multi-agent parallel-worktrees python swe-bench

Affected surfaces

breaking_upgrade

Summary

AI summary

bernstein run crashes due to missing bernstein.core.tokens module.

Full changelog

⚠️ Partially broken — CLI loads but bernstein run crashes. v1.8.10 fixed the v1.8.9 wheel enough that bernstein --version works, but the task server still crashes on startup with ModuleNotFoundError: No module named 'bernstein.core.tokens'. A stray .gitignore rule (*token*) was matching src/bernstein/core/tokens/** and dropping the whole sub-package from the wheel. v1.8.11 ships the real fix.

v1.8.10

Intended to fix the broken v1.8.9 wheel (where 18 bernstein.core.* sub-packages were missing). It restored most of them, so bernstein --version works again — but bernstein run still crashes because one more sub-package (core/tokens) was silently stripped by a .gitignore glob. Use v1.8.11.

Install

pip install --upgrade 'bernstein>=1.8.11'

Full changelog: https://github.com/chernistry/bernstein/compare/v1.8.9...v1.8.10

View diff on GitHub

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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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Related context

Beta — feedback welcome: [email protected]