{"data":{"slug":"reef","name":"Reef","tagline":"Apache-2.0 infra for continually self-improving agents","category":"agents","categoryName":"AI Agents","url":"https://reefinfra.ai","github":"https://github.com/Human-Agent-Society/reef","pricing":"open-source","hook":"Reef is OSS infrastructure for continually self-improving agents — inference, feedback, learning, and versioned delivery in one loop, not another coding CLI.","whatsGood":"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.","theCatch":"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.","addedAt":"2026-09-27","featured":false,"domain":"AI Agents","subSpecialty":"Agents","subcategory":"Inference & Local Models","tags":["cli","self-host","permissive","coding-agents","local-llm","active","young-repo","fast-stars"],"capabilities":["cli"],"surfaces":["CLI","Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"Apache-2.0","githubStars":7647,"starsPerWeek":1080,"access":"free","archived":false,"repo":{"createdAt":"2026-08-31","pushedAt":"2026-10-19","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"}},"related":[{"slug":"claude-code","name":"Claude Code","tagline":"Terminal-first coding agent with deep repository context"},{"slug":"cursor","name":"Cursor","tagline":"The AI-first code editor that understands your codebase"},{"slug":"devin","name":"Devin","tagline":"Autonomous AI engineer for defined engineering tasks"},{"slug":"stagehand","name":"Stagehand","tagline":"AI-native browser automation that mixes code and natural language"},{"slug":"browser-use","name":"Browser Use","tagline":"Open-source framework for LLM-driven browser agents"}],"links":{"self":"/api/gems/reef","html":"/gems/reef","markdown":"/gems/reef.md","category":"/api/gems?category=agents","categoryPage":"/stacks/agents"}}