Bend
Parallel language + proof-gated agent coding
AI Agents / Coding Agents · Apache-2.0 · 23.8k
Reviewed 2026-09-18 · last push 2026-10-16 · repo checked 2026-10-19
What's Good
Apache-2.0 (bendlang/bend). Bend brings a language and proof-oriented workflow to agent coding, aiming to make parallel programs and their correctness claims explicit rather than relying on prose prompts alone. The canonical project is bendlang/bend; HigherOrderCO/Bend redirects there.
The Catch
Vs Spec Kit and OpenSpec: those are process layers for agreeing on specs and changes, while Bend is a language/proof surface — process is not proof. Adopting a new language means a smaller ecosystem and a real learning/toolchain cost before the proof gates pay back.
Verdict
Apache-2.0 parallel language for proof-gated agent coding. Bend is a language surface, not another spec workflow.
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Markdown
[](https://stackgems.com/gems/bend)
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