loophole-cli-setup

Loophole CLI (adversarial ethics / rule stress-test)

Loophole is a Python CLI that stress-tests informal principles by drafting a “legal code,” then running adversarial finders and a judge loop. Upstream: brendanhogan/loophole. A copy is vendored under tools/loophole/ in this monorepo (see tools/loophole/NOTICE.md).

This is not a Cursor skill execution path by default: you run it in a terminal. The loophole-cli Cursor skill documents when to use it and the exact commands.

Requirements

• Python 3.12+
• uv (recommended) or another way to install deps from pyproject.toml
• ANTHROPIC_API_KEY in the environment (never commit). Store in 1Password or your shell profile per team practice; see 1Password CLI setup if applicable.

Install (from repo root)

cd tools/loophole
uv sync

Usage

cd tools/loophole
export ANTHROPIC_API_KEY="..."   # Windows: set ANTHROPIC_API_KEY=...
uv run python -m loophole.main new --domain privacy -p examples/privacy_principles.txt

Other subcommands (upstream): resume, visualize, list. See tools/loophole/README.md.

Privacy / data handling

Do not run on client confidential content unless policy allows. Prefer internal or synthetic examples when experimenting.

Cursor integration

• Slash command: /loophole-cli
• Skill: .cursor/skills/loophole-cli/SKILL.md