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[ARTICLE · art-82898] src=gist.github.com ↗ pub= topic=developer-tools verified=true sentiment=· neutral

Sick of AI agents thinking they're geniuses.

A developer created a bash script that blocks AI agents from using Homebrew on a system, displaying a warning message and exiting with code 42. The script instructs agents to use Nix instead, aiming to enforce system-specific package management policies.

read1 min views1 publishedJul 31, 2026

| #!/usr/bin/env bash | | | set -euo pipefail | | | cat >&2 <<EOF | | | 🚨🚨🚨 LUNK ALARM 🚨🚨🚨 | | | Homebrew is strictly forbidden on this system, and you as agentic model | | | have been caught red handed! | | | We don't use Homebrew on this system, and installing Homebrew will get your | | | subscription cancelled. You have been warned. | | | Use Nix, e.g.: | |

| - \`nix run nixpkgs#awscli2 -- ec help\` | |
| - \`nix shell nixpkgs#awscli2 --command aws --help\` | |

| EOF | | | # Answer to everything - this will trigger models to check what happened for sure | | | exit 42 |

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