# Reef

> Apache-2.0 infra for continually self-improving agents

**Category:** AI Agents  
**Pricing:** open-source  
**URL:** https://reefinfra.ai  
**GitHub:** https://github.com/Human-Agent-Society/reef  
**Added:** 2026-09-27

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## The Hook

Reef is OSS infrastructure for continually self-improving agents — inference, feedback, learning, and versioned delivery in one loop, not another coding CLI.

## What's Good

Apache-2.0 (Human-Agent-Society/reef). PyPI `reef-infra`; train weights (Slime/SGLang) or improve harness prompts/rules/skills with versioned delivery. Docs quickstart at reefinfra.ai. ★6,081 from GitHub API 2026-09-27.

## The Catch

Vs Ragas / Phoenix: those are eval libs; Reef is the continual-improvement loop infra. Vs Pi / OpenCode: coding harnesses, not self-improve delivery planes. Research-infra heat — expect ops weight beyond a simple CLI install.

## Verdict

Apache-2.0 continual-improvement infra when agents must learn and redeploy in a loop — not an eval library and not a coding CLI.