Refly
The first open-source agent skills builder. Define skills by vibe workflow.

APIs for Lovable · Webhooks for Lark/Feishu · Skills for Claude Code · Build Clawdbot
Skills are not prompts. They are durable infrastructure.
Refly is the first open-source platform for building stable, atomic, and versioned agent skills.
3 Reviews
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The canvas is approachable and the labels mostly explain themselves, which lowers the barrier for people who do not live in code. For accessibility I would improve keyboard reordering of nodes. Running a skill and watching each step resolve was satisfying and clear.
Defining agent skills as a vibe workflow and then running them is a clean mental model, and the canvas makes the data flow legible. The skills I built reused well across tasks. I would add versioning so a skill change does not silently break a downstream run.
It treats building an agent like sketching a flow rather than writing a wall of config, and that shift makes the whole thing inviting. I built something useful before I meant to, which is the sign of a tool with good manners.