Add basic guardrails to generated code#1

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kmad wants to merge 3 commits intoaaronn:mainfrom

kmad:guardrails

Commits on May 31, 2023

Added optional guardrails against destructive system interactions.
kmad
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Added ability to write out generated code which fails to execute, for debugging purposes.
kmad
committed

Commits on Jun 1, 2023

Fixed issue with guard; moved to execution phase.
kmad
committed