Version: latest

Your first X07 program

This page shows the minimal “hello world” shape for agents and for humans.

X07 programs are stored as x07AST JSON (*.x07.json). Agents should modify programs via JSON Patch applied to a known-good base.

Create an entry program

mkdir myapp
cd myapp
x07 ast init --world solve-pure --module main --kind entry --out main.x07.json

This writes a valid main.x07.json and prints a small JSON report (including schema_version and a sha256 of the file).

Create patch.json:

[
  {"op":"replace","path":"/solve","value":["bytes.lit","hello\\n"]}
]

Apply and validate:

x07 ast apply-patch --in main.x07.json --patch patch.json --out main.x07.json --validate

x07c lint --input main.x07.json --world solve-pure

x07c lint prints an x07diag JSON report to stdout.

x07-host-runner --program main.x07.json --world solve-pure

The runner prints a JSON report; the program’s bytes output is in solve_output_b64.