Overt 0.1.0-dev.8

Overt

Overt is an agent-first programming language, written and maintained primarily by LLM agents with humans in a review and audit role. Every effect, error, dispatch, mutation, and piece of state is overt: visible at the call or declaration site, never concealed. Overt transpiles to readable source in a host language (C# today, Go planned).

This package is the Overt CLI as a .NET global tool. After install, the overt command transpiles, compiles, and runs .ov source files; emits any intermediate compiler stage for inspection; formats source; and generates extern "csharp" facades for .NET types.

Install

dotnet tool install --global Overt --prerelease

The --prerelease flag is required while Overt is in the 0.x.y dev channel. Install a specific version with --version 0.1.0-dev.3.

Try it

cat > hello.ov <<'EOF'
module hello

fn main() !{io} -> Result<(), IoError> {
    println("Hello, LLM!")?
    Ok(())
}
EOF

overt run hello.ov

Outputs:

Hello, LLM!

Using Overt inside a C# project

Add the Overt.Build package to any .csproj; drop .ov files next to your .cs files; dotnet build compiles them all together. See samples/config-validate/ for a worked example.

Links

• GitHub repository — full source, examples, tests
• Design document — rationale and reference
• Why Overt — the thesis essay
• AGENTS.md — operational reference for agents authoring Overt