lv24-brain (Python launcher)

A thin Python launcher for LV24 Brain, the curated project memory CLI for coding agents and people. LV24 Brain itself is a Go binary published on npm as lv24-brain and through signed GitHub release installers. This package does not reimplement the CLI, bundle Node.js, or download the binary: the lv24-brain command delegates to the npm package through npx.

The npm package, the signed installers, and GitHub Releases remain the canonical distribution. The PyPI package only contains this launcher.

The brain name

This package intentionally installs only the lv24-brain console script. It does not install brain, because the native Go binary, the signed installers, and the npm package already own that name. A pip-installed brain script would silently shadow the real binary depending on PATH order. Use lv24-brain for the launcher, or install the native binary for brain:

npm i -g lv24-brain
# or the installers in docs/install.md
brain version

Prerequisites

• Node.js 18 or newer, including npm and npx (nodejs.org).
• Network access on first run, or an npm cache that already contains the requested package, because npx may download it.
• Python 3.9 or newer.

The CLI itself does not need a Go toolchain or a checkout of the repository.

Installation

The launcher is available on PyPI as lv24-brain; the current version is 0.14.0:

pip install lv24-brain

This installs one console script, lv24-brain. It does not install brain: the native Go binary and the npm package keep that command. The launcher also runs as a module:

python -m lv24_brain --help

Usage

lv24-brain open .
lv24-brain search "auth"
lv24-brain handoff "done: login page" --next "wire the logout button"

All arguments are forwarded unchanged to the npm CLI. The child process inherits the terminal, environment, and exit code.

If npx cannot be found, the launcher exits with code 127 and prints an installation hint. An interrupted run exits with code 130.

Version pinning

By default the launcher runs the npm package version matching its own version (currently 0.14.0). Override it with BRAIN_NPM_VERSION to use any npm version or tag:

BRAIN_NPM_VERSION=latest lv24-brain --help
BRAIN_NPM_VERSION=0.14.0 lv24-brain --help

PowerShell:

$env:BRAIN_NPM_VERSION = "latest"; lv24-brain --help

Keep the launcher and the npm CLI on the same version unless you have a reason not to; the Python package is released for the same tag.

Links

• Documentation: https://brain.lv24.by
• Repository and issues: https://github.com/LevapVeeskela/lv24-brain
• Publishing runbook: docs/pypi.md
• npm package: https://www.npmjs.com/package/lv24-brain

License

Apache-2.0. See LICENSE.