OpenSpec: The Spec Framework for Coding Agents
27k+ stars. The open-source spec layer for AI-assisted development
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YC · launched Mar 6, 2026 · 78 upvotes (top 8%) · 3 views
Niche: ai agent development platforms · 598 launches, 22 in the last 7 days ▼ -29% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI-native
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 598 launches in ai agent development platforms →
Could you build this?
Yes OpenSpec is a specification framework and CLI/agent tooling layer for defining and checking requirements against agentic code generation, which can be implemented as standard markdown/AST parsers and prompt pipelines.
Competitors
Other products that read as similar to this one : 6280 launches clear the similarity bar, closest 8 shown.
Attention rank: #548 of 6281 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 128 days after the earliest competitor.
- Codingagents.md · hn · 2026-02-11 · 5 upvotes · similarity 0.80
- Unspaghettit · hn · 2026-05-27 · 5 upvotes · similarity 0.78
- jolo · github · 2026-09-10 · 30 upvotes · similarity 0.77
- jouet · github · 2026-10-30 · 17 upvotes · similarity 0.77
- Excalibur. The open-source AI coding agent for product engineers · hn · 2026-07-06 · 7 upvotes · similarity 0.76
- coding-agent · github · 2026-09-19 · 76 upvotes · similarity 0.76
- Loom, an open-source delivery harness for coding agents · hn · 2026-06-10 · 5 upvotes · similarity 0.76
- Zerminal · hn · 2026-05-04 · 5 upvotes · similarity 0.75
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.