Sole maintainer. 16M+ weekly downloads. No release in two years.

Run a standard supply chain audit on @anthropic-ai/sdk . You get this:

@anthropic-ai/sdk: score=86 14 maintainers 17.9M downloads/week ✅ HEALTHY

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Looks fine. Anthropic maintains it actively, large team, widely used. Move on.

Run it again at depth 2 — checking what the SDK's dependencies depend on:

@anthropic-ai/sdk score=86 14 maint 17.9M/wk ✅ HEALTHY └─ json-schema-to-ts score=71 1 maint 16.5M/wk 🔴 CRITICAL: sole maintainer + >10M/wk └─ ts-algebra score=64 1 maint 13.5M/wk 🔴 CRITICAL: sole maintainer + no release in two years └─ @babel/runtime score=93 4 maint 139M/wk ✅ HEALTHY

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json-schema-to-ts is the only runtime dependency of the Anthropic SDK. One maintainer. 16.5 million weekly downloads.…