zerolang, also called Zero, is an experimental agent-first programming language from Vercel Labs. It explores what programming might look like when AI agents are treated as primary users from the start. The language aims to be small, regular, and easy for agents to learn from examples, diagnostics, and documentation. Its tooling is designed to expose structured facts for checking, running, formatting, debugging, repair, graph inspection, and size reporting. The project is pre-1 and intentionally unstable, so it is intended for isolated experimentation rather than production systems. zerolang is most useful as a research platform for developers interested in AI-native programming languages, agent-readable tooling, and repair-oriented development workflows.
Features
- Agent-first programming language experiment
- Small and regular language surface
- Structured diagnostics for debugging and repair
- CLI tools for check, run, format, and inspect workflows
- Standard library designed to reduce dependency searching
- Pre-production research environment for AI coding agents