A lightweight agent wraps npm, pip, apt, and other package managers at the OS/shell level to enforce policy before any install executes: checking package hashes against a continuously-updated threat feed, verifying maintainer signatures, sandboxing postinstall scripts, and blocking or alerting on anomalous publish-time behavior (e.g., a package version published within the last 2 hours). For CI/CD environments, a drop-in GitHub Actions / GitLab CI integration quarantines suspect packages and notifies the team with a precise blast-radius report of which secrets were in scope.

The March 2026 Trivy/axios/litellm cascade demonstrated that a single compromised upstream (Trivy's apt repo) can trigger a multi-package domino collapse affecting millions of pipelines within days — and that defenders have no real-time interception primitive today. Developer awareness of supply chain risk is at an all-time high, creating immediate budget and urgency for a point solution.