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- Nothing is yet enforced, this is just about setting and propagating the modes. - New: safe implies separationChecking implies captureChecking. No need to give more thasn one import.
But do check all mutable effects under safe mode.
Check that references in safe mode are safe or assumed-safe. Turn assumeSafe from a language import to an annotation, complemented by @rejectSafe.
natsukagami
reviewed
Feb 18, 2026
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Add safe mode, enabled by language import
This is intended to define a language subset that can be safely used in agent-generated code.