Semantic Fidelity

After a syntax repair makes generated code valid, the semantic-equivalence gate diffs it against the pre-repair code and catches a repair that dropped a public member or a call. Below are the codegen runs where drift was detected — how much the gate repaired versus the residual hard drift it could not restore. It covers only components that required a syntax repair (C#, Python, and TypeScript targets); cleanly-generated code isn't gated, and runs with no residual drift don't appear.

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