One-Command Supply Chain Hardening for JavaScript and Python Package Managers
DepsGuard is a CLI that hardens npm, pnpm, yarn, bun, and uv configs against supply chain attacks in one command, and early users on HN reported it fixing global configs immediately while missing project-level ones. Package registry attacks through 2025 made install-time scripts and unpinned ranges a board-level topic. A maintained hardening tool with policy checks and CI enforcement is a thin but real wedge into developer security budgets.
Problem Statement
An engineer who wants to harden a polyglot monorepo today reads scattered blog posts, edits .npmrc, .yarnrc.yml, bunfig.toml, and uv.toml by hand, and has no way to verify coverage across dozens of repos. One DepsGuard user said he had already made manual updates and still wanted the tool just to verify he had not missed anything, which shows the verification step itself is the unmet need.
The Idea
A config hardening and policy enforcement tool for package managers that closes known supply chain attack vectors across every repo in an organization.
Why Now
The npm ecosystem saw repeated worm-style attacks in 2025 that spread through install scripts, and registries responded with partial mitigations. Security teams now ask engineering for evidence that ignore-scripts, pinned versions, and provenance checks are enforced, but no standard tool audits these settings across five package managers.
Target User
Platform and application security engineers at companies with large JavaScript and Python codebases
Target Market
Software supply chain security for package manager configuration
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