X_CATCH_RENDER_UNSAFE

a catch binding is rendered into a refusal by a form that can itself throw

catch (error) { … error instanceof Error ? error.message : String(error) } reaching a cause:/fix:/detail:. instanceof throws on a Proxy whose getPrototypeOf throws, String() throws on a null-prototype object or a throwing toString, and ${x} throws on a Symbol — so the refusal becomes an uncoded crash on exactly the hostile input it was written to describe. error-render.ts could not see this: it reads parameters typed unknown, and a catch binding is neither. Measured — it was green before and after a seven-site fix. Fifteen sites across five packages were found by hand in one sweep and none by a gate

replace the render at <file>:<line> with renderThrowable(error) from @ultimat3/core