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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.

The verbatimModuleSyntax flag eliminates elision guessing, but it breaks mixed import statements, re-exports, and side-effect modules in production codebases. Here's what actually fails and how to fix it.

Master the techniques for debugging AI agents in production: reading execution transcripts, tracing tool calls, identifying failure patterns, and building custom analyzers that catch problems before users do.