diff --git a/tests/hs-run-filtered.js b/tests/hs-run-filtered.js
index c874ecbd..273345a4 100755
--- a/tests/hs-run-filtered.js
+++ b/tests/hs-run-filtered.js
@@ -687,35 +687,36 @@ const _log = _origLog; // keep reference for our own output
 // JS-level reference equality for host objects (works around OCaml boxing).
 // The SX `=` primitive doesn't do JS === for host objects in the WASM kernel.
 K.registerNative('hs-ref-eq',a=>a[0]===a[1]);
-K.registerNative('host-global',a=>{const n=a[0];return(n in globalThis)?globalThis[n]:null;});
+K.registerNative('host-global',a=>{const n=_unwrapHandle(a[0]);return(n in globalThis)?globalThis[n]:null;});
 K.registerNative('host-get',a=>{
   if(a[0]==null)return null;
+  const k=_unwrapHandle(a[1]);
   // SX lists (arrive as {_type:'list', items:[...]}) don't expose length/size
   // through JS property access. Hand-roll common collection queries so
   // compiled HS `x.length` / `x.size` works on scoped lists.
-  if(a[0] && a[0]._type==='list' && (a[1]==='length' || a[1]==='size')) return a[0].items.length;
-  if(a[0] && a[0]._type==='list' && typeof a[1]==='number') return a[0].items[a[1]]!==undefined?a[0].items[a[1]]:null;
-  if(a[0] && a[0]._type==='dict' && a[1]==='size') return Object.keys(a[0]).filter(k=>k!=='_type').length;
+  if(a[0] && a[0]._type==='list' && (k==='length' || k==='size')) return a[0].items.length;
+  if(a[0] && a[0]._type==='list' && typeof k==='number') return a[0].items[k]!==undefined?a[0].items[k]:null;
+  if(a[0] && a[0]._type==='dict' && k==='size') return Object.keys(a[0]).filter(x=>x!=='_type').length;
   // innerText is DOM-level alias for textContent (close enough for mock purposes)
-  if(a[0] instanceof El && a[1]==='innerText') return String(a[0].textContent||'');
+  if(a[0] instanceof El && k==='innerText') return String(a[0].textContent||'');
   // RPC dispatch object: _hsRpcDispatch bypasses Proxy-in-WASM-kernel nil issue
-  if(a[0] && typeof a[0]._hsRpcDispatch==='function'){const rv=a[0]._hsRpcDispatch(String(a[1]));return rv===undefined?null:rv;}
-  let v=a[0][a[1]];
+  if(a[0] && typeof a[0]._hsRpcDispatch==='function'){const rv=a[0]._hsRpcDispatch(String(k));return rv===undefined?null:rv;}
+  let v=a[0][k];
   if(v===undefined)return null;
   // Only coerce DOM property strings for actual DOM elements — plain JS objects
   // (e.g. promise-state dicts with a "value" key) must not be stringified.
-  if(a[0] instanceof El&&(a[1]==='innerHTML'||a[1]==='textContent'||a[1]==='value'||a[1]==='className')&&typeof v!=='string')v=String(v!=null?v:'');
+  if(a[0] instanceof El&&(k==='innerHTML'||k==='textContent'||k==='value'||k==='className')&&typeof v!=='string')v=String(v!=null?v:'');
   return v;
 });
-K.registerNative('host-set!',a=>{if(a[0]!=null){const v=a[2]; if(a[1]==='innerHTML'&&a[0] instanceof El){const s=v===null?'null':v===undefined?'':String(v);a[0]._setInnerHTML(s);a[0][a[1]]=a[0].innerHTML;} else if(a[1]==='textContent'&&a[0] instanceof El){const s=v===null?'null':v===undefined?'':String(v);a[0].textContent=s;a[0].innerHTML=s;for(const c of a[0].children){c.parentElement=null;c.parentNode=null;}a[0].children=[];a[0].childNodes=[];} else{a[0][a[1]]=v;}} return a[2];});
-K.registerNative('host-call',a=>{if(_testDeadline&&Date.now()>_testDeadline)throw new Error('TIMEOUT: wall clock exceeded');const[o,m,...r]=a;if(o==null){const f=globalThis[m];return typeof f==='function'?f.apply(null,r.map(_unwrapHandle)):null;}if(o&&typeof o[m]==='function'){try{const v=o[m].apply(o,r.map(_unwrapHandle));return v===undefined?null:v;}catch(e){return null;}}return null;});
-K.registerNative('host-call-fn',a=>{const[fn,argList]=a;if(typeof fn!=='function'&&!(fn&&fn.__sx_handle!==undefined))return null;const callArgs=(argList&&argList._type==='list'&&argList.items)?Array.from(argList.items):(Array.isArray(argList)?argList:[]);if(fn&&fn.__sx_handle!==undefined){try{return K.callFn(fn,callArgs);}catch(e){const msg=e&&e.message||'';if(String(msg).includes('TIMEOUT'))throw e;return null;}}function sxToJs(v){if(v&&v._type==='list'&&v.items)return Array.from(v.items).map(sxToJs);return v;}try{const v=fn.apply(null,callArgs.map(sxToJs));return v===undefined?null:v;}catch(e){return null;}});
-K.registerNative('host-new',a=>{const C=typeof a[0]==='string'?globalThis[a[0]]:a[0];return typeof C==='function'?new C(...a.slice(1).map(_unwrapHandle)):null;});
+K.registerNative('host-set!',a=>{if(a[0]!=null){const k=_unwrapHandle(a[1]);const v=_unwrapHandle(a[2]); if(k==='innerHTML'&&a[0] instanceof El){const s=v===null?'null':v===undefined?'':String(v);a[0]._setInnerHTML(s);a[0][k]=a[0].innerHTML;} else if(k==='textContent'&&a[0] instanceof El){const s=v===null?'null':v===undefined?'':String(v);a[0].textContent=s;a[0].innerHTML=s;for(const c of a[0].children){c.parentElement=null;c.parentNode=null;}a[0].children=[];a[0].childNodes=[];} else{a[0][k]=v;}} return a[2];});
+K.registerNative('host-call',a=>{if(_testDeadline&&Date.now()>_testDeadline)throw new Error('TIMEOUT: wall clock exceeded');const[o,mRaw,...r]=a;const m=_unwrapHandle(mRaw);if(o==null){const f=globalThis[m];return typeof f==='function'?f.apply(null,r.map(_unwrapHandle)):null;}if(o&&typeof o[m]==='function'){try{const v=o[m].apply(o,r.map(_unwrapHandle));return v===undefined?null:v;}catch(e){return null;}}return null;});
+K.registerNative('host-call-fn',a=>{const[fn,argList]=a;if(typeof fn!=='function'&&!(fn&&fn.__sx_handle!==undefined))return null;const callArgs=(argList&&argList._type==='list'&&argList.items)?Array.from(argList.items):(Array.isArray(argList)?argList:[]);if(fn&&fn.__sx_handle!==undefined){try{return K.callFn(fn,callArgs);}catch(e){const msg=e&&e.message||'';if(String(msg).includes('TIMEOUT'))throw e;return null;}}function sxToJs(v){if(v&&v._type==='list'&&v.items)return Array.from(v.items).map(sxToJs);return _unwrapHandle(v);}try{const v=fn.apply(null,callArgs.map(sxToJs));return v===undefined?null:v;}catch(e){return null;}});
+K.registerNative('host-new',a=>{const nameOrCtor=_unwrapHandle(a[0]);const C=typeof nameOrCtor==='string'?globalThis[nameOrCtor]:nameOrCtor;return typeof C==='function'?new C(...a.slice(1).map(_unwrapHandle)):null;});
 K.registerNative('host-callback',a=>{const fn=a[0];if(typeof fn==='function'&&fn.__sx_handle===undefined)return fn;if(fn&&fn.__sx_handle!==undefined)return function(){const r=K.callFn(fn,Array.from(arguments));if(globalThis._driveAsync)globalThis._driveAsync(r);return r;};return function(){};});
-K.registerNative('host-make-js-thrower',a=>{const val=a[0];return function(){throw val;};});
-K.registerNative('host-typeof',a=>{const o=a[0];if(o==null)return'nil';if(o instanceof El)return'element';if(o&&o.nodeType===3)return'text';if(o instanceof Ev)return'event';if(o instanceof Promise)return'promise';return typeof o;});
-K.registerNative('host-iter?',([obj])=>obj!=null&&typeof obj[Symbol.iterator]==='function');
-K.registerNative('host-to-list',([obj])=>{try{return[...obj];}catch(e){return[];}});
+K.registerNative('host-make-js-thrower',a=>{const val=_unwrapHandle(a[0]);return function(){throw val;};});
+K.registerNative('host-typeof',a=>{let o=a[0];if(o==null)return'nil';if(o&&typeof o==='object'&&typeof o._type==='string'&&'__sx_handle' in o)return o._type;if(o instanceof El)return'element';if(o&&o.nodeType===3)return'text';if(o instanceof Ev)return'event';if(o instanceof Promise)return'promise';return typeof o;});
+K.registerNative('host-iter?',([obj])=>{const o=_unwrapHandle(obj);return o!=null&&typeof o[Symbol.iterator]==='function';});
+K.registerNative('host-to-list',([obj])=>{const o=_unwrapHandle(obj);try{return[...o];}catch(e){return[];}});
 K.registerNative('host-await',a=>{});
 K.registerNative('load-library!',()=>false);
 K.registerNative('hs-is-set?',a=>a[0] instanceof Set);
@@ -748,10 +749,10 @@ Promise.resolve = function(v) {
 
 K.registerNative('host-new-function', a => {
   const paramList = a[0];
-  const src = a[1];
+  const src = _unwrapHandle(a[1]);
   const params = paramList && paramList._type === 'list' && paramList.items
-    ? Array.from(paramList.items)
-    : Array.isArray(paramList) ? paramList : [];
+    ? Array.from(paramList.items).map(_unwrapHandle)
+    : Array.isArray(paramList) ? paramList.map(_unwrapHandle) : [];
   try { return new Function(...params, src); } catch(e) { return null; }
 });