Community Spotlight: April 2026

Every month we spotlight the people who make Bernstein better. Here are April's highlights — the first month of public development.

What happened in April

Bernstein went from v1.0.0 to v1.7.3 in two weeks. The pace was intense, and community contributions made a real difference:

Architecture decomposition — 52 oversized modules broken into 15 focused sub-packages, each under 600 lines. The orchestrator monolith (4,198 lines) is now navigable, testable, and merge-conflict-free. Read the full story.
21 agent adapters — We started with 7 adapters and now support 21: Claude Code, Codex, Gemini CLI, Cursor, Aider, Amp, Roo Code, Kiro, Qwen, Goose, Ollama, and more. Each adapter is a focused Python class under 200 lines.
Cost-aware routing — The contextual bandit router learns which model handles each task type best. Early results show 50-60% cost savings compared to sending everything to the same model.
Cloudflare cloud execution — Agents can now run on Cloudflare Workers with Durable Workflows, R2 artifact storage, and D1 state.
Windows support — Full cross-platform compatibility contributed by @oldschoola: environment passthrough, Unicode safety, process management, and terminal handling.

Thanks to everyone who contributed PRs, reported bugs, and tested edge cases this month:

@oldschoola — Windows compatibility (8 PRs), codex config, task filtering, auto-PR
@vbhavh — cost-per-line efficiency metric
@Ai-chan-0411 — community spotlight template
@alexanderxfgl-bit — spotlight generator script
@forfreedomforrich-eng — --dry-run flag, trigger URL fix
@TheCodingDragon0 — bernstein config diff, glossary
@internet-dot — HOL workflow
@Beledarian — config path validation

All contributors are listed in CONTRIBUTORS.md.

Bernstein is Apache 2.0 and welcomes contributions of all sizes: