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Prime Agent

A coding agent that can refine its own harness

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Prime Agent is an open-source, self-improving coding harness built around two abstractions: the Recursive Language Model (RLM) and the Continual Harness. With Opus 5, it achieves 95.5% on ARC-AGI-3, surpassing the reported human expert baseline.

PH · launched Aug 10, 2026 · 164 upvotes (top 89%) · 0 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
  • Commercial product
  • Open Source
  • Developer Tools
  • Artificial Intelligence
  • GitHub

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More like this: all 470 launches in ai coding agents →

Could you build this?

No It introduces novel agentic abstractions and algorithmic harness architectures that push state-of-the-art benchmark boundaries (95.5% on ARC-AGI-3), requiring deep AI research and prompt-theory expertise.

What it would actually take: Requires cutting-edge AI research to architect Recursive Language Models (RLMs) that safely evaluate and modify their own execution harnesses, search spaces, and execution loops. Builders need deep theoretical and empirical expertise in autonomous reasoning, formal verification, and LLM metaprogramming to avoid infinite loops and performance degradation.

Competitors

Other products that read as similar to this one : 1421 launches clear the similarity bar, closest 8 shown.

Attention rank: #1318 of 1422 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 283 days after the earliest competitor.

  • Agent-2 · ph · 2026-10-29 · 1 upvotes · similarity 0.59
  • self-compact-pi-agent · github · 2026-09-20 · 54 upvotes · similarity 0.55
  • agent-harness · github · 2026-10-09 · 11 upvotes · similarity 0.54
  • DASH · ph · 2026-10-26 · 1 upvotes · similarity 0.53
  • agentmash · ph · 2026-11-01 · 142 upvotes · similarity 0.53
  • pragmatic-agent-skills · github · 2026-10-02 · 23 upvotes · similarity 0.53
  • Agent V · ph · 2026-10-04 · 1 upvotes · similarity 0.52
  • Harness by Autonomous · ph · 2026-10-16 · 330 upvotes · similarity 0.52

Related data

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