ts-r
  • Sound mode general, pre-alpha
  • Design record 0007, Accepted

TSR0010

{0} (sound mode enables 'isolatedDeclarations').

Sound mode turned on 'isolatedDeclarations' and tsc's error for it fired. Add the explicit type the wrapped message asks for.

Rule general: Escape hatches, pragmas and configuration. Reported by ts-r-check and ts-r-lsp in files that opt in to sound mode. See Sound mode.

What it means

Sound files require explicit types on exports (isolatedDeclarations), so every rule can be decided one file at a time. When your tsconfig doesn't set the flag and only sound mode turns it on, tsc's diagnostic for it is reported with this TSR code and tsc's own message in {0}, so a comparison with tsc shows why ts-r reports more. If the tsconfig already sets the flag, tsc's own code is reported instead.

How to fix

  • Do what the wrapped tsc message asks: usually add an explicit type annotation to the exported declaration.
  • Or set isolatedDeclarations in tsconfig.json yourself, so the error keeps tsc's code and tsc reports it too.

Sound mode is defined in design record 0007 (accepted 2026-10-15).