Fifteen lines of Proxy to keep an SDK from breaking my CI

Short summary

Next.js module compilation can break CI builds when SDKs validate credentials in their constructors, causing missing-secret errors during build time. A 15-line JavaScript Proxy pattern delays client instantiation until first use, solving this for rarely-exercised routes like webhooks. The pattern is reusable across SDKs (Stripe, Twilio, OpenAI, Anthropic) but less effective if the SDK is used everywhere in the app.

• •Next.js compiles all imported modules at build time, triggering SDK validation errors even if routes never execute
• •JavaScript Proxy pattern delays SDK client creation until first property access, eliminating build-time failures
• •Pattern is copyable across SDKs and requires only 15 lines of code with minimal changes to existing call sites

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