Duplicate npm/Yarn CI caches cause wasted storage — unify cache keys

Duplicate npm/Yarn CI caches create predictable wasted storage and CI runtime for engineering teams that standardize on JavaScript tooling—especially organizations using GitHub Actions and larger monorepos. Customer pilots and operator reports suggest duplicated caches can account for roughly 10–40% of cache storage and associated CI minutes, hitting platform teams and SREs responsible for cost controls and developer experience. You could build a lightweight analysis engine plus a remediation layer that identifies equivalent caches, normalizes or rewrites cache keys, and either suggests or automatically applies safe changes via a GitHub App/CLI and CI plugins. The product would include cross-repo deduplication, policy templates for org-wide consistency, and a dashboard that translates cache deduplication into dollars and CI minutes saved. This is an attractive time to act: the addressable market is roughly $6.0B (1.5M developer organizations × $4,000 ACV) with a high market score (92/100) and strong revenue potential (82/100), driven by GitHub Actions growth, monorepo consolidation, and heightened scrutiny on infrastructure spend. Those trends make the ROI calculation simple for platform and infrastructure teams—small changes to cache keys can pay back in weeks by reducing storage and build time. To stand out, focus on deep npm/Yarn expertise, minimal-permission integrations, provable savings calculations, and safe rollout mechanisms that win trust from platform teams. Real challenges include achieving org-wide adoption across diverse repositories, maintaining compatibility across package managers and CI variants, and competing in a medium-competition field where established CI/platform tooling may add similar features.