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Claude Code Environment Variables and Secrets in 2026: What Gets Passed to Subagents and What Does Not
August 13, 2026
Most secret leakage in Claude Code stems from misunderstanding what environment data subagents inherit. This post maps the three-layer isolation model and shows production patterns for scoping credentials per subagent without vault complexity.
TypeScript Intersection Types Done Right: When They Compose Cleanly and When They Silently Lie
August 12, 2026
Most TypeScript composition failures stem from misunderstanding intersection types. Learn when they compose cleanly, when they produce never, and how to avoid the silent lies that break production code.
TypeScript 6.0 `--noPropertyAccessFromIndexSignature`: The Flag That Forces Honest API Contracts
August 11, 2026
Most runtime property access errors stem from index signatures pretending to guarantee properties they don't. This flag exposes the lie and forces honest API contracts.
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