Nicheloom visits: 58,050 all-time · 7,694 in the last 7 days

The opportunity tracker for new startups.

Today: 1,953 launches · Niche of the day: specialized calculation tools · See what launched today →

jev-harness

A custom coding harness for TypeSafe AI's Jev: an LLM proposes, Jev answers narrow questions, code decides, every step leaves a receipt.

Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.

Want to reach these readers? Sponsor an issue.

GITHUB · launched Sep 22, 2026 · 18 upvotes (top 43%) · 3 views

Niche: ai coding agents · 470 launches, 22 in the last 7 days ▼ -48% · Explore this niche →

Category and tags

  • Horizontal
  • Agent / copilot
  • Developer
  • AI-native
  • Hobby / open-source project
  • agent-harness
  • agentic-coding
  • ai-agents
  • ai-governance
  • ai-safety
  • code-review
  • +14 more

Visit website ↗ Source listing ↗

Could you build this?

Yes This is a testing harness and arena UI that sends prompts to two different LLM endpoints/tool-configurations, collects the tokens/diffs, and displays a side-by-side comparison with local storage logging. Standard web UI and API orchestration like this can be built with an AI assistant in days.

Competitors

Other products that read as similar to this one : 396 launches clear the similarity bar, closest 8 shown.

Attention rank: #235 of 397 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 285 days after the earliest competitor.

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.