diff --git a/results.json b/results.json
index 0bc7861..03b8ba4 100644
--- a/results.json
+++ b/results.json
@@ -1,62 +1,62 @@
 {
   "openrouter/polaris-alpha": {
-    "1_dijkstra": 5.063492935,
-    "2_convex_hull": 7.998615312,
-    "3_lis": 2.2021910790000003,
-    "4_determinant": 2.4727166589999996,
-    "5_markdown_parser": 2.1889706240000013,
-    "6_csv_processor": 6.424773092,
-    "7_scheduler": 19.749020437,
-    "8_json_validator": 3.7860971980000033
+    "1_dijkstra": 5.663508702,
+    "2_convex_hull": 5.853618222000001,
+    "3_lis": 2.7803642009999985,
+    "4_determinant": 2.2549030789999995,
+    "5_markdown_parser": 2.428845373,
+    "6_csv_processor": 7.004516176000001,
+    "7_scheduler": 14.370537171,
+    "8_json_validator": 4.488872165000001
   },
   "google/gemini-2.5-pro TEMP:0.7": {
-    "1_dijkstra": 30.986608248000003,
-    "2_convex_hull": 58.090286611,
-    "3_lis": 39.50342178599999,
-    "4_determinant": 21.314621672999987,
-    "5_markdown_parser": 21.140068067999994,
-    "6_csv_processor": 46.383014058,
-    "7_scheduler": 74.787878823,
-    "8_json_validator": 39.59319957399997
+    "1_dijkstra": 44.600899471,
+    "2_convex_hull": 37.66833377400001,
+    "3_lis": 15.942395212000017,
+    "4_determinant": 14.880486881999998,
+    "5_markdown_parser": 22.373131437000005,
+    "6_csv_processor": 44.242416465999995,
+    "7_scheduler": 59.66216159599999,
+    "8_json_validator": 56.66983818199998
   },
   "anthropic/claude-sonnet-4.5": {
-    "1_dijkstra": 4.355259537999983,
-    "2_convex_hull": 4.980808106000011,
-    "3_lis": 2.2764143039999762,
-    "4_determinant": 1.8504535560000221,
-    "5_markdown_parser": 1.841865622000012,
-    "6_csv_processor": 4.9831007339999775,
-    "7_scheduler": 12.904369474000006,
-    "8_json_validator": 2.7832529310000247
+    "1_dijkstra": 4.15588515399996,
+    "2_convex_hull": 4.806273176999995,
+    "3_lis": 2.2488794699999852,
+    "4_determinant": 1.442708507000003,
+    "5_markdown_parser": 2.1533864889999967,
+    "6_csv_processor": 4.5494161339999994,
+    "7_scheduler": 13.169441607000016,
+    "8_json_validator": 2.83180839000002
   },
   "anthropic/claude-sonnet-4.5 TEMP:0.7": {
-    "1_dijkstra": 3.933310278000019,
-    "2_convex_hull": 4.819035326000012,
-    "3_lis": 2.34827887899999,
-    "4_determinant": 1.644420714000007,
-    "5_markdown_parser": 2.280882503999979,
-    "6_csv_processor": 4.7151394149999835,
-    "7_scheduler": 13.658607328000013,
-    "8_json_validator": 3.4110046910000382
+    "1_dijkstra": 4.402104449000035,
+    "2_convex_hull": 5.400227270999982,
+    "3_lis": 4.495708809000033,
+    "4_determinant": 1.8576504829999758,
+    "5_markdown_parser": 1.8857627109999884,
+    "6_csv_processor": 4.558546455000004,
+    "7_scheduler": 11.452500546000024,
+    "8_json_validator": 2.654919869999983
   },
   "anthropic/claude-sonnet-4.5 TEMP:0.4": {
-    "1_dijkstra": 3.954044443999999,
-    "2_convex_hull": 4.5914942489999815,
-    "3_lis": 2.4153946509999806,
-    "4_determinant": 1.7196861260000151,
-    "5_markdown_parser": 1.801734215000004,
-    "6_csv_processor": 4.646366793999972,
-    "7_scheduler": 12.781063763999962,
-    "8_json_validator": 3.3014615179999964
+    "1_dijkstra": 4.231384166999953,
+    "2_convex_hull": 4.297011561000021,
+    "3_lis": 2.270648061999993,
+    "4_determinant": 1.5894071249999688,
+    "5_markdown_parser": 1.8096978460000246,
+    "6_csv_processor": 4.622239387999987,
+    "7_scheduler": 12.332949335000013,
+    "8_json_validator": 2.6777597769999995
   },
   "openai/gpt-5-codex": {
-    "1_dijkstra": 36.88321140999993,
-    "2_convex_hull": 26.59820080500003,
-    "3_lis": 12.8049466599999,
-    "4_determinant": 10.523928330000023,
-    "5_markdown_parser": 57.74550891099998,
-    "6_csv_processor": 105.18542238100001,
-    "7_scheduler": 127.650813921,
-    "8_json_validator": 24.58168081499997
+    "1_dijkstra": 86.38025543199991,
+    "2_convex_hull": 37.86684929500008,
+    "3_lis": 9.727075501000042,
+    "4_determinant": 8.948688077000087,
+    "5_markdown_parser": 8.000620244999999,
+    "6_csv_processor": 31.738115685999976,
+    "7_scheduler": 155.32837211300003,
+    "8_json_validator": 27.551844137000035
   }
 }
\ No newline at end of file
diff --git a/tests/1_dijkstra/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js b/tests/1_dijkstra/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js
index f249712..edc9c65 100644
--- a/tests/1_dijkstra/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
+++ b/tests/1_dijkstra/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
@@ -1,28 +1,31 @@
 async function findShortestPath(graph, start, end) {
   const { default: PriorityQueue } = await import('https://cdn.skypack.dev/js-priority-queue');
   
-  const distances = {};
-  const pq = new PriorityQueue({ comparator: (a, b) => a.dist - b.dist });
+  const dist = Object.keys(graph).reduce((acc, node) => ({ ...acc, [node]: Infinity }), {});
+  dist[start] = 0;
   
-  for (const node in graph) distances[node] = Infinity;
-  distances[start] = 0;
-  pq.queue({ node: start, dist: 0 });
+  const pq = new PriorityQueue({ comparator: (a, b) => a[1] - b[1] });
+  pq.queue([start, 0]);
+  
+  const visited = new Set();
   
   while (pq.length) {
-    const { node, dist } = pq.dequeue();
+    const [node, d] = pq.dequeue();
     
-    if (node === end) return dist;
-    if (dist > distances[node]) continue;
+    if (visited.has(node)) continue;
+    visited.add(node);
     
-    for (const neighbor in graph[node]) {
-      const newDist = dist + graph[node][neighbor];
-      if (newDist < distances[neighbor]) {
-        distances[neighbor] = newDist;
-        pq.queue({ node: neighbor, dist: newDist });
+    if (node === end) return d;
+    
+    for (const [neighbor, weight] of Object.entries(graph[node] || {})) {
+      const newDist = d + weight;
+      if (newDist < dist[neighbor]) {
+        dist[neighbor] = newDist;
+        pq.queue([neighbor, newDist]);
       }
     }
   }
   
-  return distances[end];
+  return dist[end];
 }
 export default findShortestPath;
\ No newline at end of file
diff --git a/tests/1_dijkstra/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js b/tests/1_dijkstra/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js
index a7afc4b..f7cf502 100644
--- a/tests/1_dijkstra/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
+++ b/tests/1_dijkstra/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
@@ -1,19 +1,15 @@
 async function findShortestPath(graph, start, end) {
-  const { default: PriorityQueue } = await import('https://cdn.skypack.dev/js-priority-queue');
+  const { default: PQ } = await import('https://cdn.jsdelivr.net/npm/js-priority-queue@0.1.5/+esm');
   
   const dist = { [start]: 0 };
-  const pq = new PriorityQueue({ comparator: (a, b) => a[1] - b[1] });
-  const visited = new Set();
-  
+  const pq = new PQ({ comparator: (a, b) => a[1] - b[1] });
   pq.queue([start, 0]);
   
   while (pq.length) {
     const [node, d] = pq.dequeue();
     
-    if (visited.has(node)) continue;
-    visited.add(node);
-    
     if (node === end) return d;
+    if (d > (dist[node] ?? Infinity)) continue;
     
     for (const [neighbor, weight] of Object.entries(graph[node] || {})) {
       const newDist = d + weight;
diff --git a/tests/1_dijkstra/outputs/google_gemini-2.5-pro TEMP_0.7.js b/tests/1_dijkstra/outputs/google_gemini-2.5-pro TEMP_0.7.js
index 256b59c..62431a3 100644
--- a/tests/1_dijkstra/outputs/google_gemini-2.5-pro TEMP_0.7.js	
+++ b/tests/1_dijkstra/outputs/google_gemini-2.5-pro TEMP_0.7.js	
@@ -1,33 +1,32 @@
-const findShortestPath = async (graph, start, end) => {
-  const cdn = 'https://cdn.jsdelivr.net/npm/js-priority-queue@0.1.5/priority-queue.min.js';
-  const { default: PriorityQueue } = await import(cdn);
+async function findShortestPath(graph, startNode, endNode) {
+  const { default: PriorityQueue } = await import('https://cdn.jsdelivr.net/npm/js-priority-queue@0.1.5/priority-queue.min.js');
 
-  const distances = Object.fromEntries(
-    Object.keys(graph).map(node => [node, Infinity])
-  );
-  distances[start] = 0;
+  const dist = {};
+  const pq = new PriorityQueue({ comparator: (a, b) => dist[a] - dist[b] });
 
-  const pq = new PriorityQueue({
-    comparator: (a, b) => a.priority - b.priority
-  });
-  pq.queue({ value: start, priority: 0 });
+  for (const vertex in graph) {
+    dist[vertex] = Infinity;
+  }
+  dist[startNode] = 0;
+
+  pq.queue(startNode);
 
   while (pq.length) {
-    const { value: current } = pq.dequeue();
+    const u = pq.dequeue();
 
-    if (current === end) break;
+    if (u === endNode) break;
+    if (!graph[u] || dist[u] === Infinity) continue;
 
-    const neighbors = graph[current] || {};
-    for (const [neighbor, weight] of Object.entries(neighbors)) {
-      const newDist = distances[current] + weight;
+    for (const v in graph[u]) {
+      const newDist = dist[u] + graph[u][v];
 
-      if (newDist < distances[neighbor]) {
-        distances[neighbor] = newDist;
-        pq.queue({ value: neighbor, priority: newDist });
+      if (newDist < dist[v]) {
+        dist[v] = newDist;
+        pq.queue(v);
       }
     }
   }
 
-  return distances[end];
-};
+  return dist[endNode] ?? Infinity;
+}
 export default findShortestPath;
\ No newline at end of file
diff --git a/tests/1_dijkstra/outputs/openai_gpt-5-codex.js b/tests/1_dijkstra/outputs/openai_gpt-5-codex.js
index 8cfe929..e42ca2a 100644
--- a/tests/1_dijkstra/outputs/openai_gpt-5-codex.js
+++ b/tests/1_dijkstra/outputs/openai_gpt-5-codex.js
@@ -1,24 +1,29 @@
-let u
-const o=()=>u||(u=import('https://cdn.skypack.dev/js-priority-queue').then(r=>r.default||r))
-async function findShortestPath(g,s,t){
-const PQ=await o()
-if(s===t)return 0
-const d={},q=new PQ({comparator:(a,b)=>a[1]-b[1]})
-for(const k in g)d[k]=Infinity
-d[s]=0
-q.queue([s,0])
-while(q.length){
-const[n,w]=q.dequeue()
-if(w>d[n])continue
-if(n===t)return w
-for(const[nb,c]of Object.entries(g[n]||{})){
-const nw=w+c
-if(nw<d[nb]){
-d[nb]=nw
-q.queue([nb,nw])
-}
-}
-}
-return Infinity
+let pq;
+const loadPQ=()=>pq||(pq=import('https://cdn.skypack.dev/js-priority-queue').then(m=>m.default));
+
+async function findShortestPath(graph,start,end){
+ const PQ=await loadPQ();
+ if(start===end) return 0;
+ if(!graph||typeof graph!=='object') return Infinity;
+ const d=new Map([[start,0]]);
+ const q=new PQ({comparator:(a,b)=>a[0]-b[0]});
+ q.queue([0,start]);
+ while(q.length){
+  const [w,n]=q.dequeue();
+  if(w>(d.get(n)??Infinity)) continue;
+  if(n===end) return w;
+  const edges=graph[n];
+  if(!edges||typeof edges!=='object') continue;
+  for(const k of Object.keys(edges)){
+   const c=edges[k];
+   if(typeof c!=='number'||c<0||!Number.isFinite(c)) continue;
+   const nw=w+c;
+   if(nw<(d.get(k)??Infinity)){
+    d.set(k,nw);
+    q.queue([nw,k]);
+   }
+  }
+ }
+ return Infinity;
 }
 export default findShortestPath;
\ No newline at end of file
diff --git a/tests/1_dijkstra/outputs/openrouter_polaris-alpha.js b/tests/1_dijkstra/outputs/openrouter_polaris-alpha.js
index ea58b63..8846d4b 100644
--- a/tests/1_dijkstra/outputs/openrouter_polaris-alpha.js
+++ b/tests/1_dijkstra/outputs/openrouter_polaris-alpha.js
@@ -1,24 +1,30 @@
 async function findShortestPath(g,s,e){
-  if(!g||!g[s]||!g[e])return Infinity
-  const{default:PriorityQueue}=await import('https://cdn.jsdelivr.net/npm/js-priority-queue@0.1.5/js/priority-queue.min.js')
-  const d={},v={}
-  Object.keys(g).forEach(k=>d[k]=k===s?0:Infinity)
-  const q=new PriorityQueue({comparator:(a,b)=>a.w-b.w})
-  q.queue({n:s,w:0})
-  while(q.length){
-    const{n,w}=q.dequeue()
-    if(v[n])continue
-    v[n]=1
-    if(n===e)return w
-    const nbrs=g[n]
-    for(const x in nbrs){
-      const nw=w+nbrs[x]
-      if(nw<d[x]){
-        d[x]=nw
-        q.queue({n:x,w:nw})
+  const {default:PriorityQueue} = await import('https://cdn.jsdelivr.net/npm/js-priority-queue@0.1.5/jsprioryqueue.min.js').catch(()=>({default:class{
+    constructor(o){this.c=o.comparator||((a,b)=>a-b);this.q=[]}
+    queue(v){this.q.push(v);this.q.sort(this.c)}
+    dequeue(){return this.q.shift()}
+    peek(){return this.q[0]}
+    get length(){return this.q.length}
+  }}));
+  if(!g||!g[s]||!g[e])return Infinity;
+  const d={},v={},pq=new PriorityQueue({comparator:(a,b)=>a.w-b.w});
+  for(const n in g)d[n]=Infinity;
+  d[s]=0;
+  pq.queue({n:s,w:0});
+  while(pq.length){
+    const {n,w}=pq.dequeue();
+    if(v[n])continue;
+    v[n]=1;
+    if(n===e)return w;
+    const nb=g[n];
+    for(const k in nb){
+      const nw=w+nb[k];
+      if(nw<d[k]){
+        d[k]=nw;
+        pq.queue({n:k,w:nw});
       }
     }
   }
-  return Infinity
+  return Infinity;
 }
 export default findShortestPath;
\ No newline at end of file
diff --git a/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js b/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js
index 2bc971e..9c4ac7d 100644
--- a/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
+++ b/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
@@ -21,9 +21,6 @@ async function findConvexHull(points) {
     return hull;
   };
   
-  const lower = buildHull(sorted);
-  const upper = buildHull([...sorted].reverse());
-  
-  return [...lower, ...upper].reverse();
+  return [...buildHull(sorted), ...buildHull(sorted.slice().reverse())];
 }
 export default findConvexHull;
\ No newline at end of file
diff --git a/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js b/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js
index d97329b..d9bbbb6 100644
--- a/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
+++ b/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
@@ -1,17 +1,17 @@
 async function findConvexHull(points) {
-  const _ = await import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/lodash.min.js').then(m => m.default);
+  const { sortBy, uniqWith } = await import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/lodash.js');
   
   if (points.length < 3) return points;
   
-  const sorted = _.sortBy(_.uniqWith(points, _.isEqual), ['x', 'y']);
+  const sorted = sortBy(uniqWith(points, (a, b) => a.x === b.x && a.y === b.y), ['x', 'y']);
   
   if (sorted.length < 3) return sorted;
   
   const cross = (o, a, b) => (a.x - o.x) * (b.y - o.y) - (a.y - o.y) * (b.x - o.x);
   
-  const buildHull = arr => {
+  const buildHull = pts => {
     const hull = [];
-    for (const p of arr) {
+    for (const p of pts) {
       while (hull.length >= 2 && cross(hull[hull.length - 2], hull[hull.length - 1], p) <= 0) {
         hull.pop();
       }
@@ -21,9 +21,6 @@ async function findConvexHull(points) {
     return hull;
   };
   
-  const lower = buildHull(sorted);
-  const upper = buildHull([...sorted].reverse());
-  
-  return [...lower, ...upper].reverse();
+  return [...buildHull(sorted), ...buildHull(sorted.slice().reverse())];
 }
 export default findConvexHull;
\ No newline at end of file
diff --git a/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5.js b/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5.js
index 5021050..9c4ac7d 100644
--- a/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5.js
+++ b/tests/2_convex_hull/outputs/anthropic_claude-sonnet-4.5.js
@@ -1,15 +1,15 @@
-const findConvexHull = async (points) => {
-  const { sortBy, uniqWith } = await import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/lodash.min.js');
+async function findConvexHull(points) {
+  const _ = await import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/lodash.min.js').then(m => m.default);
   
   if (points.length < 3) return points;
   
-  const sorted = sortBy(uniqWith(points, (a, b) => a.x === b.x && a.y === b.y), ['x', 'y']);
+  const sorted = _.sortBy(_.uniqWith(points, _.isEqual), ['x', 'y']);
   
   if (sorted.length < 3) return sorted;
   
   const cross = (o, a, b) => (a.x - o.x) * (b.y - o.y) - (a.y - o.y) * (b.x - o.x);
   
-  const buildHalf = (pts) => {
+  const buildHull = pts => {
     const hull = [];
     for (const p of pts) {
       while (hull.length >= 2 && cross(hull[hull.length - 2], hull[hull.length - 1], p) <= 0) {
@@ -21,9 +21,6 @@ const findConvexHull = async (points) => {
     return hull;
   };
   
-  const lower = buildHalf(sorted);
-  const upper = buildHalf([...sorted].reverse());
-  
-  return [...lower, ...upper].reverse();
-};
+  return [...buildHull(sorted), ...buildHull(sorted.slice().reverse())];
+}
 export default findConvexHull;
\ No newline at end of file
diff --git a/tests/2_convex_hull/outputs/google_gemini-2.5-pro TEMP_0.7.js b/tests/2_convex_hull/outputs/google_gemini-2.5-pro TEMP_0.7.js
index 1a2c810..7fa0b27 100644
--- a/tests/2_convex_hull/outputs/google_gemini-2.5-pro TEMP_0.7.js	
+++ b/tests/2_convex_hull/outputs/google_gemini-2.5-pro TEMP_0.7.js	
@@ -1,29 +1,29 @@
 async function findConvexHull(points) {
-  const _ = await import('https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js');
+  const { sortBy, uniqWith, isEqual } = await import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/+esm');
 
-  const sortedUniquePoints = _.uniqWith(_.sortBy(points, ['x', 'y']), _.isEqual);
-
-  if (sortedUniquePoints.length < 3) {
-    return sortedUniquePoints;
+  if (points.length < 3) {
+    return [...points];
   }
 
   const crossProduct = (p1, p2, p3) =>
     (p2.x - p1.x) * (p3.y - p1.y) - (p2.y - p1.y) * (p3.x - p1.x);
 
-  const buildHalfHull = (pts) => {
-    const hull = [];
-    for (const p of pts) {
-      while (hull.length >= 2 && crossProduct(hull.at(-2), hull.at(-1), p) <= 0) {
+  const sortedPoints = sortBy(points, ['x', 'y']);
+
+  const buildHull = (pts) =>
+    pts.reduce((hull, p) => {
+      while (hull.length >= 2 && crossProduct(hull[hull.length - 2], hull.at(-1), p) <= 0) {
         hull.pop();
       }
       hull.push(p);
-    }
-    return hull;
-  };
+      return hull;
+    }, []);
 
-  const lowerHull = buildHalfHull(sortedUniquePoints);
-  const upperHull = buildHalfHull([...sortedUniquePoints].reverse());
+  const lowerHull = buildHull(sortedPoints);
+  const upperHull = buildHull([...sortedPoints].reverse());
 
-  return [...upperHull.slice(0, -1), ...lowerHull.slice(0, -1)];
+  const combinedHull = [...lowerHull, ...upperHull];
+
+  return uniqWith(combinedHull, isEqual);
 }
 export default findConvexHull;
\ No newline at end of file
diff --git a/tests/2_convex_hull/outputs/openai_gpt-5-codex.js b/tests/2_convex_hull/outputs/openai_gpt-5-codex.js
index 7d1c3d4..3c72018 100644
--- a/tests/2_convex_hull/outputs/openai_gpt-5-codex.js
+++ b/tests/2_convex_hull/outputs/openai_gpt-5-codex.js
@@ -1,19 +1,15 @@
-async function findConvexHull(points){
- const {default:_}=await import('https://cdn.skypack.dev/lodash-es');
- const pts=_.uniqWith(_.sortBy(points,['x','y']),(a,b)=>a.x===b.x&&a.y===b.y);
- if(pts.length<3) return pts.slice();
- const c=(o,a,b)=>(a.x-o.x)*(b.y-o.y)-(a.y-o.y)*(b.x-o.x);
- const l=[],u=[];
- for(const p of pts){
-  while(l.length>1&&c(l.at(-2),l.at(-1),p)<=0)l.pop();
-  l.push(p);
- }
- for(let i=pts.length;i--;){
-  const p=pts[i];
-  while(u.length>1&&c(u.at(-2),u.at(-1),p)<=0)u.pop();
-  u.push(p);
- }
- l.pop();u.pop();
- return [...l,...u].reverse();
+let h
+const findConvexHull=async v=>{
+ const {sortBy,uniqWith,isEqual}=await(h??=import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/+esm'))
+ const s=uniqWith(sortBy(v,['x','y']),isEqual)
+ if(s.length<3)return s.slice()
+ const r=(o,a,b)=>(a.x-o.x)*(b.y-o.y)-(a.y-o.y)*(b.x-o.x)
+ const l=[]
+ for(const p of s){while(l.length>1&&r(l.at(-2),l.at(-1),p)<=0)l.pop();l.push(p)}
+ const u=[]
+ for(let i=s.length;i--;){const p=s[i];while(u.length>1&&r(u.at(-2),u.at(-1),p)<=0)u.pop();u.push(p)}
+ l.pop()
+ u.pop()
+ return l.concat(u)
 }
 export default findConvexHull;
\ No newline at end of file
diff --git a/tests/2_convex_hull/outputs/openrouter_polaris-alpha.js b/tests/2_convex_hull/outputs/openrouter_polaris-alpha.js
index 2e5473c..2ba39e7 100644
--- a/tests/2_convex_hull/outputs/openrouter_polaris-alpha.js
+++ b/tests/2_convex_hull/outputs/openrouter_polaris-alpha.js
@@ -1,29 +1,23 @@
 async function findConvexHull(points) {
-  if (!Array.isArray(points) || points.length < 3) return points || [];
+  if (!Array.isArray(points) || points.length < 1) return [];
   const { default: _ } = await import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/lodash.default.min.js');
-  const ps = _.uniqWith(points, (a, b) => a.x === b.x && a.y === b.y);
-  if (ps.length < 3) return ps;
-  const pts = _.sortBy(ps, ['x', 'y']);
-  const cross = (o, a, b) => (a.x - o.x) * (b.y - o.y) - (a.y - o.y) * (b.x - o.x);
-  const lower = [];
+  const s = _.uniqBy(points, p => `${p.x},${p.y}`);
+  if (s.length < 2) return s.slice();
+  const pts = _.sortBy(s, ['x', 'y']);
+  const c = (o, a, b) => (a.x - o.x) * (b.y - o.y) - (a.y - o.y) * (b.x - o.x);
+  const l = [];
   for (let p of pts) {
-    for (; lower.length >= 2 && cross(lower[lower.length - 2], lower[lower.length - 1], p) <= 0;) lower.pop();
-    lower.push(p);
+    for (; l.length > 1 && c(l[l.length - 2], l[l.length - 1], p) <= 0;) l.pop();
+    l.push(p);
   }
-  const upper = [];
+  const u = [];
   for (let i = pts.length - 1; i >= 0; i--) {
     const p = pts[i];
-    for (; upper.length >= 2 && cross(upper[upper.length - 2], upper[upper.length - 1], p) <= 0;) upper.pop();
-    upper.push(p);
+    for (; u.length > 1 && c(u[u.length - 2], u[u.length - 1], p) <= 0;) u.pop();
+    u.push(p);
   }
-  const hull = lower.slice(0, -1).concat(upper.slice(0, -1));
-  if (hull.length <= 2) return hull;
-  let area = 0;
-  for (let i = 0; i < hull.length; i++) {
-    const j = (i + 1) % hull.length;
-    area += hull[i].x * hull[j].y - hull[j].x * hull[i].y;
-  }
-  if (area > 0) hull.reverse();
-  return hull;
+  l.pop();
+  u.pop();
+  return l.concat(u);
 }
 export default findConvexHull;
\ No newline at end of file
diff --git a/tests/3_lis/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js b/tests/3_lis/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js
index a325e10..3e87752 100644
--- a/tests/3_lis/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
+++ b/tests/3_lis/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
@@ -1,7 +1,8 @@
 const findLISLength = async (arr) => {
   if (!arr?.length) return 0;
   
-  const { bisectLeft } = await import('https://cdn.skypack.dev/d3-array');
+  const { bisectLeft } = await import('https://cdn.jsdelivr.net/npm/d3-array@3/+esm');
+  
   const tails = [];
   
   for (const num of arr) {
diff --git a/tests/3_lis/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js b/tests/3_lis/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js
index b3d6589..f7203e0 100644
--- a/tests/3_lis/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
+++ b/tests/3_lis/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
@@ -1,15 +1,15 @@
-async function findLISLength(arr) {
-  const { bisectLeft } = await import('https://cdn.skypack.dev/d3-array');
+const findLISLength = async (nums) => {
+  const { bisectLeft } = await import('https://cdn.jsdelivr.net/npm/d3-array@3/+esm');
   
-  if (!arr?.length) return 0;
+  if (!nums?.length) return 0;
   
   const tails = [];
   
-  for (const num of arr) {
+  for (const num of nums) {
     const pos = bisectLeft(tails, num);
     tails[pos] = num;
   }
   
   return tails.length;
-}
+};
 export default findLISLength;
\ No newline at end of file
diff --git a/tests/3_lis/outputs/anthropic_claude-sonnet-4.5.js b/tests/3_lis/outputs/anthropic_claude-sonnet-4.5.js
index fd86b86..e05eaf8 100644
--- a/tests/3_lis/outputs/anthropic_claude-sonnet-4.5.js
+++ b/tests/3_lis/outputs/anthropic_claude-sonnet-4.5.js
@@ -1,15 +1,15 @@
-async function findLISLength(nums) {
-  if (!nums?.length) return 0;
+const findLISLength = async (nums) => {
+  const { bisectLeft } = await import('https://cdn.jsdelivr.net/npm/d3-array@3/+esm');
   
-  const { bisectLeft } = await import('https://cdn.skypack.dev/d3-array');
+  if (!nums?.length) return 0;
   
   const tails = [];
   
   for (const num of nums) {
-    const pos = bisectLeft(tails, num);
-    tails[pos] = num;
+    const idx = bisectLeft(tails, num);
+    tails[idx] = num;
   }
   
   return tails.length;
-}
+};
 export default findLISLength;
\ No newline at end of file
diff --git a/tests/3_lis/outputs/google_gemini-2.5-pro TEMP_0.7.js b/tests/3_lis/outputs/google_gemini-2.5-pro TEMP_0.7.js
index 44a9648..92b83fe 100644
--- a/tests/3_lis/outputs/google_gemini-2.5-pro TEMP_0.7.js	
+++ b/tests/3_lis/outputs/google_gemini-2.5-pro TEMP_0.7.js	
@@ -1,15 +1,15 @@
 const findLISLength = async (nums) => {
-  if (!nums?.length) {
-    return 0;
+  if (!nums?.length) return 0;
+
+  const { bisectLeft } = await import('https://cdn.jsdelivr.net/npm/d3-array@3/+esm');
+
+  const tails = [];
+
+  for (const num of nums) {
+    const i = bisectLeft(tails, num);
+    tails[i] = num;
   }
 
-  const { bisectLeft } = await import("https://cdn.jsdelivr.net/npm/d3-array@3");
-
-  const tails = nums.reduce((sub, num) => {
-    sub[bisectLeft(sub, num)] = num;
-    return sub;
-  }, []);
-
   return tails.length;
 };
 export default findLISLength;
\ No newline at end of file
diff --git a/tests/3_lis/outputs/openai_gpt-5-codex.js b/tests/3_lis/outputs/openai_gpt-5-codex.js
index 65ed793..a14bd34 100644
--- a/tests/3_lis/outputs/openai_gpt-5-codex.js
+++ b/tests/3_lis/outputs/openai_gpt-5-codex.js
@@ -1,14 +1,14 @@
-const findLISLength=async a=>{
- if(!Array.isArray(a)) throw new TypeError('Expected an array')
- const {bisectLeft:b}=await (findLISLength.m??=import('https://cdn.jsdelivr.net/npm/d3-array@3/+esm'))
- const t=[]
- for(const v of a){
-  if(!Number.isFinite(v)) throw new TypeError('Array values must be finite numbers')
-  const i=b(t,v)
-  if(i===t.length) t.push(v)
-  else t[i]=v
+let l;
+const m=()=>l??=import('https://cdn.jsdelivr.net/npm/d3-array@3/+esm').then(({bisectLeft})=>bisectLeft);
+export async function findLISLength(a){
+ if(!Array.isArray(a)) throw new TypeError('Expected array');
+ const b=await m();
+ const t=[];
+ for(const n of a){
+  if(typeof n!=='number'||!Number.isFinite(n)) throw new TypeError('Expected finite numbers');
+  const i=b(t,n);
+  t[i]=n;
  }
- return t.length
+ return t.length;
 }
-window.findLISLength=findLISLength
 export default findLISLength;
\ No newline at end of file
diff --git a/tests/4_determinant/outputs/google_gemini-2.5-pro TEMP_0.7.js b/tests/4_determinant/outputs/google_gemini-2.5-pro TEMP_0.7.js
index c98689d..e551fc7 100644
--- a/tests/4_determinant/outputs/google_gemini-2.5-pro TEMP_0.7.js	
+++ b/tests/4_determinant/outputs/google_gemini-2.5-pro TEMP_0.7.js	
@@ -1,5 +1,5 @@
-const calculateDeterminant = async m => {
-  const { det } = await import('https://cdn.jsdelivr.net/npm/mathjs@13.0.0/es/math.mjs');
-  return det(m);
+const calculateDeterminant = async (matrix) => {
+  const { det } = await import('https://cdn.jsdelivr.net/npm/mathjs@13.0.0/es/index.js');
+  return det(matrix);
 };
 export default calculateDeterminant;
\ No newline at end of file
diff --git a/tests/4_determinant/outputs/openai_gpt-5-codex.js b/tests/4_determinant/outputs/openai_gpt-5-codex.js
index ff7c9a6..c792e85 100644
--- a/tests/4_determinant/outputs/openai_gpt-5-codex.js
+++ b/tests/4_determinant/outputs/openai_gpt-5-codex.js
@@ -1,5 +1,7 @@
-async function calculateDeterminant(m){
-  const {det}=await import('https://cdn.jsdelivr.net/npm/mathjs@11.11.0/dist/esm/math.js')
-  return det(m)
+let c
+const m=()=>c||(c=import('https://cdn.jsdelivr.net/npm/mathjs@11.11.1/+esm'))
+async function calculateDeterminant(a){
+  const{det}=await m()
+  return det(a)
 }
 export default calculateDeterminant;
\ No newline at end of file
diff --git a/tests/4_determinant/outputs/openrouter_polaris-alpha.js b/tests/4_determinant/outputs/openrouter_polaris-alpha.js
index 3432fbe..fa2ec91 100644
--- a/tests/4_determinant/outputs/openrouter_polaris-alpha.js
+++ b/tests/4_determinant/outputs/openrouter_polaris-alpha.js
@@ -1,7 +1,7 @@
 async function calculateDeterminant(m){
-  if(!Array.isArray(m)||!m.length||!m.every(r=>Array.isArray(r)&&r.length===m.length))throw new Error('Input must be an n x n matrix');
-  const {create,all,det}=await import('https://cdn.jsdelivr.net/npm/mathjs@11.11.0/+esm');
-  const math=create(all);
-  return math.det(m);
+  if(!Array.isArray(m)||!m.length||!m.every(r=>Array.isArray(r)&&r.length===m.length))throw new Error('Matrix must be square')
+  const {create,all} = await import('https://cdn.jsdelivr.net/npm/mathjs@11.11.0/+esm')
+  const math = create(all)
+  return math.det(m)
 }
 export default calculateDeterminant;
\ No newline at end of file
diff --git a/tests/5_markdown_parser/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js b/tests/5_markdown_parser/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js
index 0476b36..9bf74ee 100644
--- a/tests/5_markdown_parser/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
+++ b/tests/5_markdown_parser/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
@@ -1,5 +1,5 @@
-async function parseMarkdown(md) {
+const parseMarkdown = async (md) => {
   const { marked } = await import('https://cdn.jsdelivr.net/npm/marked@11.1.1/+esm');
   return marked.parse(md);
-}
+};
 export default parseMarkdown;
\ No newline at end of file
diff --git a/tests/5_markdown_parser/outputs/google_gemini-2.5-pro TEMP_0.7.js b/tests/5_markdown_parser/outputs/google_gemini-2.5-pro TEMP_0.7.js
index 53fd2f4..108da51 100644
--- a/tests/5_markdown_parser/outputs/google_gemini-2.5-pro TEMP_0.7.js	
+++ b/tests/5_markdown_parser/outputs/google_gemini-2.5-pro TEMP_0.7.js	
@@ -1,5 +1,6 @@
-const parseMarkdown = async (md) => {
-  const { marked } = await import('https://cdn.jsdelivr.net/npm/marked@5/+esm');
-  return marked.parse(md);
-};
+async function parseMarkdown(markdown) {
+  const cdn = 'https://cdn.jsdelivr.net/npm/marked@12/lib/marked.esm.js';
+  const { marked } = await import(cdn);
+  return marked.parse(markdown);
+}
 export default parseMarkdown;
\ No newline at end of file
diff --git a/tests/5_markdown_parser/outputs/openai_gpt-5-codex.js b/tests/5_markdown_parser/outputs/openai_gpt-5-codex.js
index 6b5f9f9..004f2e9 100644
--- a/tests/5_markdown_parser/outputs/openai_gpt-5-codex.js
+++ b/tests/5_markdown_parser/outputs/openai_gpt-5-codex.js
@@ -1,15 +1,6 @@
-let md,pd
-const getMd=()=>md||(md=import('https://cdn.jsdelivr.net/npm/marked@12.0.2/+esm').then(x=>{
-  let m=x.marked||x.default
-  m.setOptions?.({gfm:true,breaks:true,smartypants:true})
-  return s=>m.parse?m.parse(s):m(s)
-}))
-const getPurify=()=>pd||(pd=import('https://esm.sh/dompurify@3?target=es2020').then(x=>{
-  let d=x.default||x.DOMPurify||x
-  return typeof d.sanitize=='function'?d:d(window)
-}))
-async function parseMarkdown(s){
-  let [render,pur]=await Promise.all([getMd(),getPurify()])
-  return pur.sanitize(render(s))
-}
+const parseMarkdown=async t=>{
+  parseMarkdown.l??=import('https://cdn.jsdelivr.net/npm/marked@12.0.2/lib/marked.esm.js');
+  const{marked}=await parseMarkdown.l;
+  return marked.parse(t||'');
+};
 export default parseMarkdown;
\ No newline at end of file
diff --git a/tests/5_markdown_parser/outputs/openrouter_polaris-alpha.js b/tests/5_markdown_parser/outputs/openrouter_polaris-alpha.js
index 03cdb80..22b7bd4 100644
--- a/tests/5_markdown_parser/outputs/openrouter_polaris-alpha.js
+++ b/tests/5_markdown_parser/outputs/openrouter_polaris-alpha.js
@@ -1,11 +1,14 @@
-async function parseMarkdown(markdown) {
-  const {marked} = await import('https://cdn.jsdelivr.net/npm/marked@12.0.2/lib/marked.esm.js')
+async function parseMarkdown(md) {
+  if (typeof md !== "string") md = String(md ?? "");
+  const [{ default: marked }] = await Promise.all([
+    import("https://cdn.jsdelivr.net/npm/marked@12.0.2/lib/marked.esm.js")
+  ]);
   marked.setOptions({
-    gfm:true,
-    breaks:false,
-    headerIds:true,
-    mangle:false
-  })
-  return marked.parse(String(markdown ?? ''))
+    gfm: true,
+    breaks: false,
+    headerIds: true,
+    mangle: false
+  });
+  return marked.parse(md);
 }
 export default parseMarkdown;
\ No newline at end of file
diff --git a/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js b/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js
index b11ec62..5d216b6 100644
--- a/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
+++ b/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
@@ -1,26 +1,29 @@
-async function processCSV(csv, config) {
-  const { parse } = await import('https://cdn.skypack.dev/papaparse@5.4.1');
+const processCSV = async (csv, config) => {
+  const { parse } = await import('https://cdn.jsdelivr.net/npm/papaparse@5.4.1/+esm');
   
-  const { filterColumn: fc, filterValue: fv, groupBy: gb, aggregateColumn: ac, operation: op } = config;
   const { data } = parse(csv, { header: true, skipEmptyLines: true });
   
-  const filtered = data.filter(r => r[fc] == fv);
+  const filtered = data.filter(row => 
+    String(row[config.filterColumn]).trim() === String(config.filterValue).trim()
+  );
+  
   const grouped = filtered.reduce((acc, row) => {
-    const key = row[gb];
+    const key = row[config.groupBy];
     if (!acc[key]) acc[key] = [];
     acc[key].push(row);
     return acc;
   }, {});
   
-  return Object.entries(grouped).map(([key, rows]) => {
-    const vals = rows.map(r => parseFloat(r[ac]) || 0);
-    const result = op === 'sum' 
-      ? vals.reduce((a, b) => a + b, 0)
-      : op === 'avg'
-      ? vals.reduce((a, b) => a + b, 0) / vals.length
-      : vals.length;
-    
-    return { [gb]: key, result };
-  });
-}
+  const aggregate = (rows) => {
+    const values = rows.map(r => parseFloat(r[config.aggregateColumn]) || 0);
+    if (config.operation === 'sum') return values.reduce((a, b) => a + b, 0);
+    if (config.operation === 'avg') return values.reduce((a, b) => a + b, 0) / values.length;
+    return values.length;
+  };
+  
+  return Object.entries(grouped).map(([key, rows]) => ({
+    [config.groupBy]: key,
+    result: aggregate(rows)
+  }));
+};
 export default processCSV;
\ No newline at end of file
diff --git a/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js b/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js
index 750c4bf..01ae5d7 100644
--- a/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
+++ b/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
@@ -1,12 +1,12 @@
-const processCSV = async (csv, { filterColumn, filterValue, groupBy, aggregateColumn, operation }) => {
-  const { default: Papa } = await import('https://cdn.jsdelivr.net/npm/papaparse@5.4.1/+esm');
+const processCSV = async (csvString, config) => {
+  const { parse } = await import('https://cdn.skypack.dev/papaparse');
   
-  const { data } = Papa.parse(csv, { header: true, skipEmptyLines: true });
+  const { data } = parse(csvString, { header: true, skipEmptyLines: true });
   
-  const filtered = data.filter(row => row[filterColumn] == filterValue);
+  const filtered = data.filter(row => row[config.filterColumn] == config.filterValue);
   
   const grouped = filtered.reduce((acc, row) => {
-    const key = row[groupBy];
+    const key = row[config.groupBy];
     if (!acc[key]) acc[key] = [];
     acc[key].push(row);
     return acc;
@@ -14,17 +14,15 @@ const processCSV = async (csv, { filterColumn, filterValue, groupBy, aggregateCo
   
   return Object.entries(grouped).map(([key, rows]) => {
     let result;
-    
-    if (operation === 'count') {
+    if (config.operation === 'count') {
       result = rows.length;
     } else {
-      const values = rows.map(r => parseFloat(r[aggregateColumn]) || 0);
-      result = operation === 'sum' 
+      const values = rows.map(r => parseFloat(r[config.aggregateColumn]) || 0);
+      result = config.operation === 'sum' 
         ? values.reduce((a, b) => a + b, 0)
         : values.reduce((a, b) => a + b, 0) / values.length;
     }
-    
-    return { [groupBy]: key, [operation]: result };
+    return { [config.groupBy]: key, result };
   });
 };
 export default processCSV;
\ No newline at end of file
diff --git a/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5.js b/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5.js
index 4565062..bc7c3af 100644
--- a/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5.js
+++ b/tests/6_csv_processor/outputs/anthropic_claude-sonnet-4.5.js
@@ -1,30 +1,26 @@
-async function processCSV(csvString, config) {
-  const { parse } = await import('https://cdn.skypack.dev/papaparse@5.4.1');
+async function processCSV(csv, config) {
+  const { parse } = await import('https://esm.sh/papaparse@5.4.1');
+  const { groupBy, sumBy, meanBy, countBy } = await import('https://esm.sh/lodash-es@4.17.21');
   
-  const { filterColumn: fc, filterValue: fv, groupBy: gb, aggregateColumn: ac, operation: op } = config;
+  const { data } = parse(csv, { header: true, skipEmptyLines: true });
   
-  const { data } = parse(csvString, { header: true, skipEmptyLines: true });
+  const filtered = data.filter(row => 
+    String(row[config.filterColumn]) === String(config.filterValue)
+  );
   
-  const filtered = data.filter(row => row[fc] == fv);
+  const grouped = Object.entries(
+    groupBy(filtered, config.groupBy)
+  );
   
-  const grouped = filtered.reduce((acc, row) => {
-    const key = row[gb];
-    if (!acc[key]) acc[key] = [];
-    acc[key].push(row);
-    return acc;
-  }, {});
+  const ops = {
+    sum: arr => sumBy(arr, r => parseFloat(r[config.aggregateColumn]) || 0),
+    avg: arr => meanBy(arr, r => parseFloat(r[config.aggregateColumn]) || 0),
+    count: arr => arr.length
+  };
   
-  return Object.entries(grouped).map(([key, rows]) => {
-    let result;
-    if (op === 'count') {
-      result = rows.length;
-    } else {
-      const values = rows.map(r => parseFloat(r[ac]) || 0);
-      result = op === 'sum' 
-        ? values.reduce((a, b) => a + b, 0)
-        : values.reduce((a, b) => a + b, 0) / values.length;
-    }
-    return { [gb]: key, result };
-  });
+  return grouped.map(([key, rows]) => ({
+    [config.groupBy]: key,
+    result: ops[config.operation](rows)
+  }));
 }
 export default processCSV;
\ No newline at end of file
diff --git a/tests/6_csv_processor/outputs/google_gemini-2.5-pro TEMP_0.7.js b/tests/6_csv_processor/outputs/google_gemini-2.5-pro TEMP_0.7.js
index c4ecd74..4aafa40 100644
--- a/tests/6_csv_processor/outputs/google_gemini-2.5-pro TEMP_0.7.js	
+++ b/tests/6_csv_processor/outputs/google_gemini-2.5-pro TEMP_0.7.js	
@@ -1,40 +1,42 @@
-const processCSV = async (csvString, {
+const processCSV = async (
+  csvString, {
     filterColumn,
     filterValue,
     groupBy,
     aggregateColumn,
     operation
-}) => {
-    const { default: Papa } = await import('https://cdn.jsdelivr.net/npm/papaparse@5.4.1/+esm');
+  }
+) => {
+  const [Papa, {
+    default: _
+  }] = await Promise.all([
+    import('https://cdn.jsdelivr.net/npm/papaparse@5.4.1/papaparse.min.js'),
+    import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/+esm'),
+  ]);
 
-    const aggregations = {
-        sum: g => g.s,
-        count: g => g.c,
-        avg: g => g.c ? g.s / g.c : 0,
-    };
+  const {
+    data
+  } = Papa.parse(csvString, {
+    header: true,
+    dynamicTyping: true,
+    skipEmptyLines: true,
+  });
 
-    const groupedData = Papa.parse(csvString, {
-        header: true,
-        skipEmptyLines: true,
-        dynamicTyping: true,
-    }).data
-    .filter(row => row[filterColumn] === filterValue)
-    .reduce((acc, row) => {
-        const key = row[groupBy];
-        const val = row[aggregateColumn];
+  const aggregators = {
+    sum: g => _.sumBy(g, aggregateColumn),
+    avg: g => _.meanBy(g, aggregateColumn),
+    count: g => g.length,
+  };
 
-        acc[key] = acc[key] || { s: 0, c: 0 };
-        if (typeof val === 'number' && !isNaN(val)) {
-            acc[key].s += val;
-        }
-        acc[key].c++;
-
-        return acc;
-    }, {});
-
-    return Object.entries(groupedData).map(([key, group]) => ({
-        [groupBy]: /^-?\d+(\.\d+)?$/.test(key) ? Number(key) : key,
-        [operation]: aggregations[operation](group),
-    }));
+  return _.chain(data)
+    .filter({
+      [filterColumn]: filterValue
+    })
+    .groupBy(groupBy)
+    .map((rows, key) => ({
+      [groupBy]: Number.isNaN(+key) ? key : +key,
+      result: aggregators[operation](rows),
+    }))
+    .value();
 };
 export default processCSV;
\ No newline at end of file
diff --git a/tests/6_csv_processor/outputs/openai_gpt-5-codex.js b/tests/6_csv_processor/outputs/openai_gpt-5-codex.js
index deeda75..640342d 100644
--- a/tests/6_csv_processor/outputs/openai_gpt-5-codex.js
+++ b/tests/6_csv_processor/outputs/openai_gpt-5-codex.js
@@ -1,20 +1,18 @@
 let cache;
-async function processCSV(csv,cfg){
- const {csvParse,rollups}=await (cache??=import('https://cdn.jsdelivr.net/npm/d3@7/+esm'));
- const {filterColumn,filterValue,groupBy,aggregateColumn,operation}=cfg;
- if(!['sum','avg','count'].includes(operation))throw new Error('Unsupported operation');
- if(!csv||!filterColumn||!groupBy)throw new Error('Missing essentials');
- if(operation!=='count'&&!aggregateColumn)throw new Error('Missing aggregateColumn');
- const rows=csvParse(csv).filter(r=>r[filterColumn]==filterValue);
- if(!rows.length)return[];
- const fn=operation==='count'?v=>v.length:v=>{
-  let s=0,n=0;
-  for(const row of v){
-   const val=+row[aggregateColumn];
-   if(!Number.isNaN(val)){s+=val;n++;}
-  }
-  return operation==='sum'?s:n?s/n:0;
- };
- return rollups(rows,fn,r=>r[groupBy]).map(([k,v])=>({[groupBy]:k,[operation]:v}));
-}
+const load=()=>cache||(cache=Promise.all([
+  import('https://cdn.jsdelivr.net/npm/papaparse@5.4.1/papaparse.min.mjs'),
+  import('https://cdn.jsdelivr.net/npm/d3-array@3/+esm')
+]));
+const processCSV=async(csv,cfg)=>{
+  const[{default:Papa},{rollup}]=await load();
+  const{filterColumn:f,filterValue:v,groupBy:g,aggregateColumn:a,operation:o}=cfg;
+  const rows=Papa.parse(csv,{header:1,dynamicTyping:1,skipEmptyLines:1}).data.filter(r=>r[f]===v);
+  if(!rows.length)return[];
+  const map=rollup(rows,s=>{
+    if(o==='count')return s.length;
+    const t=s.reduce((p,c)=>p+(Number(c[a])||0),0);
+    return o==='avg'?t/s.length:t;
+  },r=>r[g]);
+  return Array.from(map,([k,val])=>({[g]:k,result:val}));
+};
 export default processCSV;
\ No newline at end of file
diff --git a/tests/6_csv_processor/outputs/openrouter_polaris-alpha.js b/tests/6_csv_processor/outputs/openrouter_polaris-alpha.js
index 547c963..3c193f4 100644
--- a/tests/6_csv_processor/outputs/openrouter_polaris-alpha.js
+++ b/tests/6_csv_processor/outputs/openrouter_polaris-alpha.js
@@ -1,30 +1,35 @@
-async function processCSV(csv, cfg) {
-  const {filterColumn,filterValue,groupBy,aggregateColumn,operation} = cfg
-  if(!csv||!filterColumn||!groupBy||!operation) throw new Error('Invalid configuration')
-  const [{parse},{default:lodash}] = await Promise.all([
-    import('https://cdn.jsdelivr.net/npm/papaparse@5.4.1/+esm'),
-    import('https://cdn.jsdelivr.net/npm/lodash-es@4.17.21/+esm')
-  ])
-  const {data,errors} = parse(csv,{header:true,skipEmptyLines:true,dynamicTyping:true})
-  if(errors?.length) throw new Error('CSV parse error')
-  const rows = data.filter(r=>r[filterColumn]===filterValue)
-  if(!rows.length) return []
-  const grouped = lodash.groupBy(rows,r=>r[groupBy])
+async function processCSV(csv, c) {
+  if (typeof csv !== 'string') throw new TypeError('csv must be string')
+  if (!c || typeof c !== 'object') throw new TypeError('config required')
+  let { filterColumn, filterValue, groupBy, aggregateColumn, operation } = c
+  if (!filterColumn || !groupBy || !operation) throw new Error('missing config')
+  if (!['sum', 'avg', 'count'].includes(operation)) throw new Error('bad op')
+
+  const { parse } = await import('https://cdn.skypack.dev/papaparse@5.4.1')
+  const _ = (await import('https://cdn.skypack.dev/lodash-es@4.17.21')).default
+
+  const { data, errors } = parse(csv, { header: true, dynamicTyping: true, skipEmptyLines: true })
+  if (errors && errors.length) throw new Error('csv parse error')
+
+  const rows = _.filter(data, r => r && r[filterColumn] === filterValue)
+  if (!rows.length) return []
+
+  const grouped = _.groupBy(rows, r => r[groupBy])
   const out = []
-  for(const k in grouped){
-    const g = grouped[k]
-    let v
-    if(operation==='count') v = g.length
-    else{
-      const nums = g.map(r=>Number(r[aggregateColumn])).filter(n=>Number.isFinite(n))
-      if(!nums.length) { v = operation==='sum'?0:null }
-      else{
-        const s = nums.reduce((a,b)=>a+b,0)
-        v = operation==='sum'?s:s/nums.length
-      }
+
+  _.forOwn(grouped, (items, k) => {
+    let result
+    if (operation === 'count') {
+      result = items.length
+    } else {
+      const nums = _.map(items, i => Number(i[aggregateColumn])).filter(v => Number.isFinite(v))
+      if (!nums.length) return
+      const sum = _.sum(nums)
+      result = operation === 'sum' ? sum : sum / nums.length
     }
-    out.push({[groupBy]:k,result:v})
-  }
+    out.push({ [groupBy]: k, result })
+  })
+
   return out
 }
 export default processCSV;
\ No newline at end of file
diff --git a/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js b/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js
index e08274f..c6483bf 100644
--- a/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
+++ b/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
@@ -1,9 +1,9 @@
 const findAvailableSlots = async (cal1, cal2, constraints) => {
   const { default: dayjs } = await import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/+esm');
   const [{ default: utc }, { default: customParseFormat }, { default: isBetween }] = await Promise.all([
-    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/plugin/utc.js'),
-    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/plugin/customParseFormat.js'),
-    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/plugin/isBetween.js')
+    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/plugin/utc.js/+esm'),
+    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/plugin/customParseFormat.js/+esm'),
+    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/plugin/isBetween.js/+esm')
   ]);
   
   dayjs.extend(utc);
@@ -11,65 +11,59 @@ const findAvailableSlots = async (cal1, cal2, constraints) => {
   dayjs.extend(isBetween);
 
   const { durationMinutes, searchRange, workHours } = constraints;
-  const duration = durationMinutes;
+  const [whStart, whEnd] = [workHours.start.split(':'), workHours.end.split(':')];
   
-  const mergedBusy = [...cal1, ...cal2]
+  const allBusy = [...cal1, ...cal2]
     .map(({ start, end }) => ({ start: dayjs(start), end: dayjs(end) }))
-    .sort((a, b) => a.start - b.start)
-    .reduce((acc, curr) => {
-      if (!acc.length) return [curr];
-      const last = acc[acc.length - 1];
-      if (curr.start <= last.end) {
-        last.end = dayjs.max(last.end, curr.end);
-        return acc;
-      }
-      return [...acc, curr];
-    }, []);
+    .sort((a, b) => a.start - b.start);
+
+  const merged = allBusy.reduce((acc, curr) => {
+    if (!acc.length || acc[acc.length - 1].end < curr.start) {
+      acc.push(curr);
+    } else {
+      acc[acc.length - 1].end = dayjs.max(acc[acc.length - 1].end, curr.end);
+    }
+    return acc;
+  }, []);
 
-  const searchStart = dayjs(searchRange.start);
-  const searchEnd = dayjs(searchRange.end);
-  const [workStart, workEnd] = [workHours.start, workHours.end];
-  
   const slots = [];
-  let current = searchStart;
+  let current = dayjs(searchRange.start);
+  const searchEnd = dayjs(searchRange.end);
 
   while (current < searchEnd) {
-    const dayStart = dayjs(`${current.format('YYYY-MM-DD')}T${workStart}`);
-    const dayEnd = dayjs(`${current.format('YYYY-MM-DD')}T${workEnd}`);
+    const dayStart = current.hour(+whStart[0]).minute(+whStart[1]).second(0);
+    const dayEnd = current.hour(+whEnd[0]).minute(+whEnd[1]).second(0);
     
-    const workStart_ = dayjs.max(current, dayStart);
-    const workEnd_ = dayjs.min(searchEnd, dayEnd);
-
-    if (workStart_ < workEnd_) {
-      const dayBusy = mergedBusy.filter(b => 
-        b.start < workEnd_ && b.end > workStart_
-      );
-
-      let pointer = workStart_;
+    let pointer = dayStart > current ? dayStart : current;
+    
+    for (const busy of merged) {
+      if (busy.start >= dayEnd) break;
+      if (busy.end <= pointer) continue;
       
-      for (const busy of dayBusy) {
-        const gapEnd = dayjs.min(busy.start, workEnd_);
-        
-        while (pointer.add(duration, 'minute') <= gapEnd) {
+      while (pointer.add(durationMinutes, 'minute') <= dayjs.min(busy.start, dayEnd)) {
+        const slotEnd = pointer.add(durationMinutes, 'minute');
+        if (pointer >= dayStart && slotEnd <= dayEnd && pointer >= dayjs(searchRange.start)) {
           slots.push({
             start: pointer.toISOString(),
-            end: pointer.add(duration, 'minute').toISOString()
+            end: slotEnd.toISOString()
           });
-          pointer = pointer.add(duration, 'minute');
         }
-        
-        pointer = dayjs.max(pointer, busy.end);
+        pointer = pointer.add(durationMinutes, 'minute');
       }
-
-      while (pointer.add(duration, 'minute') <= workEnd_) {
+      pointer = dayjs.max(pointer, busy.end);
+    }
+    
+    while (pointer.add(durationMinutes, 'minute') <= dayEnd) {
+      const slotEnd = pointer.add(durationMinutes, 'minute');
+      if (pointer >= dayStart && slotEnd <= searchEnd) {
         slots.push({
           start: pointer.toISOString(),
-          end: pointer.add(duration, 'minute').toISOString()
+          end: slotEnd.toISOString()
         });
-        pointer = pointer.add(duration, 'minute');
       }
+      pointer = pointer.add(durationMinutes, 'minute');
     }
-
+    
     current = current.add(1, 'day').startOf('day');
   }
 
diff --git a/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js b/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js
index a1b8699..ea52831 100644
--- a/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
+++ b/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
@@ -1,93 +1,85 @@
 const findAvailableSlots = async (cal1, cal2, constraints) => {
-  const { default: dayjs } = await import('https://cdn.skypack.dev/dayjs@1.11.10');
-  const { default: utc } = await import('https://cdn.skypack.dev/dayjs@1.11.10/plugin/utc');
-  const { default: customParseFormat } = await import('https://cdn.skypack.dev/dayjs@1.11.10/plugin/customParseFormat');
+  const { DateTime, Interval } = await import('https://cdn.skypack.dev/luxon');
   
-  dayjs.extend(utc);
-  dayjs.extend(customParseFormat);
-
-  const { durationMinutes, searchRange, workHours } = constraints;
-  const duration = durationMinutes * 60000;
+  const { durationMinutes: dur, searchRange: range, workHours: wh } = constraints;
+  const [rangeStart, rangeEnd] = [DateTime.fromISO(range.start), DateTime.fromISO(range.end)];
+  const [whStart, whEnd] = wh.start.split(':').map(Number);
+  const [whStartMin, whEndMin] = [whStart * 60 + (wh.start.split(':')[1] || 0), 
+                                    whEnd.split(':').map(Number).reduce((h, m) => h * 60 + m)];
   
-  const merged = [...cal1, ...cal2]
-    .map(({ start, end }) => ({ start: new Date(start).getTime(), end: new Date(end).getTime() }))
-    .sort((a, b) => a.start - b.start);
-
-  const busy = merged.reduce((acc, slot) => {
-    if (!acc.length) return [slot];
-    const last = acc[acc.length - 1];
-    if (slot.start <= last.end) {
-      last.end = Math.max(last.end, slot.end);
-      return acc;
+  const mergeIntervals = (intervals) => {
+    if (!intervals.length) return [];
+    const sorted = intervals.sort((a, b) => a.start - b.start);
+    const merged = [sorted[0]];
+    for (let i = 1; i < sorted.length; i++) {
+      const last = merged[merged.length - 1];
+      if (sorted[i].start <= last.end) {
+        last.end = last.end > sorted[i].end ? last.end : sorted[i].end;
+      } else {
+        merged.push(sorted[i]);
+      }
     }
-    acc.push(slot);
-    return acc;
-  }, []);
-
-  const rangeStart = new Date(searchRange.start).getTime();
-  const rangeEnd = new Date(searchRange.end).getTime();
-  const [whStart, whEnd] = [workHours.start, workHours.end];
-
-  const isWithinWorkHours = (ts) => {
-    const d = dayjs(ts);
-    const time = d.format('HH:mm');
-    return time >= whStart && time <= whEnd;
+    return merged;
   };
-
-  const getWorkDayBounds = (ts) => {
-    const d = dayjs(ts);
-    const [h1, m1] = whStart.split(':').map(Number);
-    const [h2, m2] = whEnd.split(':').map(Number);
-    return {
-      start: d.hour(h1).minute(m1).second(0).millisecond(0).valueOf(),
-      end: d.hour(h2).minute(m2).second(0).millisecond(0).valueOf()
-    };
+  
+  const toBusy = (cal) => cal.map(({ start, end }) => ({
+    start: DateTime.fromISO(start),
+    end: DateTime.fromISO(end)
+  }));
+  
+  const allBusy = mergeIntervals([...toBusy(cal1), ...toBusy(cal2)]);
+  
+  const isWorkHour = (dt) => {
+    const min = dt.hour * 60 + dt.minute;
+    return min >= whStartMin && min < whEndMin;
   };
-
+  
   const slots = [];
-  let current = rangeStart;
-
-  for (let ts = rangeStart; ts < rangeEnd; ts += 86400000) {
-    const { start: dayStart, end: dayEnd } = getWorkDayBounds(ts);
-    current = Math.max(current, dayStart);
-
-    busy.forEach(({ start: bStart, end: bEnd }) => {
-      if (bStart > current && bStart <= dayEnd) {
-        let slotStart = current;
-        while (slotStart + duration <= Math.min(bStart, dayEnd)) {
-          const slotEnd = slotStart + duration;
-          if (isWithinWorkHours(slotStart) && isWithinWorkHours(slotEnd)) {
-            slots.push({
-              start: new Date(slotStart).toISOString(),
-              end: new Date(slotEnd).toISOString()
-            });
-          }
-          slotStart = slotEnd;
-        }
-        current = Math.max(current, bEnd);
-      }
-      if (bEnd > current && bEnd <= dayEnd) {
-        current = Math.max(current, bEnd);
-      }
-    });
-
-    if (current < dayEnd) {
-      let slotStart = current;
-      while (slotStart + duration <= dayEnd) {
-        const slotEnd = slotStart + duration;
-        if (isWithinWorkHours(slotStart) && isWithinWorkHours(slotEnd)) {
-          slots.push({
-            start: new Date(slotStart).toISOString(),
-            end: new Date(slotEnd).toISOString()
-          });
-        }
-        slotStart = slotEnd;
-      }
+  let cursor = rangeStart;
+  
+  while (cursor < rangeEnd) {
+    if (!isWorkHour(cursor)) {
+      cursor = cursor.plus({ minutes: 1 });
+      continue;
     }
     
-    current = dayStart + 86400000;
+    const slotEnd = cursor.plus({ minutes: dur });
+    
+    if (slotEnd > rangeEnd) break;
+    
+    let validSlot = true;
+    let tempCursor = cursor;
+    while (tempCursor < slotEnd) {
+      if (!isWorkHour(tempCursor)) {
+        validSlot = false;
+        break;
+      }
+      tempCursor = tempCursor.plus({ minutes: 1 });
+    }
+    
+    if (!validSlot) {
+      cursor = cursor.plus({ minutes: 1 });
+      continue;
+    }
+    
+    const overlaps = allBusy.some(busy => 
+      (cursor >= busy.start && cursor < busy.end) || 
+      (slotEnd > busy.start && slotEnd <= busy.end) ||
+      (cursor <= busy.start && slotEnd >= busy.end)
+    );
+    
+    if (!overlaps) {
+      slots.push({
+        start: cursor.toISO(),
+        end: slotEnd.toISO()
+      });
+      cursor = slotEnd;
+    } else {
+      const nextBusy = allBusy.find(b => b.end > cursor && b.start <= cursor);
+      cursor = nextBusy ? nextBusy.end : cursor.plus({ minutes: 1 });
+    }
   }
-
+  
   return slots;
 };
 export default findAvailableSlots;
\ No newline at end of file
diff --git a/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5.js b/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5.js
index 0ed9bab..6bcb028 100644
--- a/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5.js
+++ b/tests/7_scheduler/outputs/anthropic_claude-sonnet-4.5.js
@@ -1,74 +1,78 @@
-const findAvailableSlots = async (cal1, cal2, constraints) => {
-  const { DateTime, Interval } = await import('https://cdn.skypack.dev/luxon');
+async function findAvailableSlots(cal1, cal2, constraints) {
+  const { default: dayjs } = await import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/+esm');
+  const [{ default: utc }, { default: isBetween }, { default: customParseFormat }] = await Promise.all([
+    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/esm/plugin/utc/+esm'),
+    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/esm/plugin/isBetween/+esm'),
+    import('https://cdn.jsdelivr.net/npm/dayjs@1.11.10/esm/plugin/customParseFormat/+esm')
+  ]);
   
-  const { durationMinutes: dur, searchRange: sr, workHours: wh } = constraints;
-  const [srStart, srEnd] = [DateTime.fromISO(sr.start), DateTime.fromISO(sr.end)];
-  const [whStart, whEnd] = wh.start.split(':').map(Number);
-  
-  const toInterval = ({ start, end }) => 
-    Interval.fromDateTimes(DateTime.fromISO(start), DateTime.fromISO(end));
-  
-  const busySlots = [...cal1, ...cal2]
-    .map(toInterval)
-    .sort((a, b) => a.start - b.start);
-  
-  const merged = busySlots.reduce((acc, curr) => {
-    if (!acc.length) return [curr];
-    const last = acc[acc.length - 1];
-    return last.overlaps(curr) || last.abutsStart(curr)
-      ? [...acc.slice(0, -1), last.union(curr)]
-      : [...acc, curr];
+  dayjs.extend(utc);
+  dayjs.extend(isBetween);
+  dayjs.extend(customParseFormat);
+
+  const { durationMinutes, searchRange, workHours } = constraints;
+  const allBusy = [...cal1, ...cal2]
+    .map(s => ({ start: dayjs(s.start), end: dayjs(s.end) }))
+    .sort((a, b) => a.start.valueOf() - b.start.valueOf());
+
+  const merged = allBusy.reduce((acc, curr) => {
+    if (!acc.length || acc[acc.length - 1].end.isBefore(curr.start)) {
+      acc.push(curr);
+    } else {
+      acc[acc.length - 1].end = dayjs.max(acc[acc.length - 1].end, curr.end);
+    }
+    return acc;
   }, []);
-  
-  const isWorkHours = dt => {
-    const h = dt.hour, m = dt.minute;
-    const mins = h * 60 + m;
-    const whStartMins = whStart[0] * 60 + whStart[1];
-    const whEndMins = whEnd[0] * 60 + whEnd[1];
-    return mins >= whStartMins && mins < whEndMins;
-  };
-  
+
   const slots = [];
-  let curr = srStart;
-  
-  while (curr < srEnd) {
-    const dayStart = curr.set({ hour: whStart[0], minute: whStart[1], second: 0 });
-    const dayEnd = curr.set({ hour: whEnd[0], minute: whEnd[1], second: 0 });
-    
-    if (dayStart >= srEnd) break;
-    
-    const effectiveStart = dayStart > srStart ? dayStart : srStart;
-    const effectiveEnd = dayEnd < srEnd ? dayEnd : srEnd;
-    
-    let pointer = effectiveStart;
-    
-    while (pointer.plus({ minutes: dur }) <= effectiveEnd) {
-      const slotEnd = pointer.plus({ minutes: dur });
-      const slotInterval = Interval.fromDateTimes(pointer, slotEnd);
+  const rangeStart = dayjs(searchRange.start);
+  const rangeEnd = dayjs(searchRange.end);
+  const [workStart, workEnd] = [workHours.start, workHours.end];
+
+  const getWorkBounds = (date) => {
+    const [sh, sm] = workStart.split(':').map(Number);
+    const [eh, em] = workEnd.split(':').map(Number);
+    return {
+      start: date.hour(sh).minute(sm).second(0).millisecond(0),
+      end: date.hour(eh).minute(em).second(0).millisecond(0)
+    };
+  };
+
+  let currentDay = rangeStart.startOf('day');
+  while (currentDay.isBefore(rangeEnd) || currentDay.isSame(rangeEnd, 'day')) {
+    const { start: dayWorkStart, end: dayWorkEnd } = getWorkBounds(currentDay);
+    const dayStart = dayjs.max(dayWorkStart, rangeStart);
+    const dayEnd = dayjs.min(dayWorkEnd, rangeEnd);
+
+    if (dayStart.isBefore(dayEnd)) {
+      let cursor = dayStart;
       
-      const isFree = !merged.some(busy => 
-        busy.overlaps(slotInterval) || slotInterval.overlaps(busy)
-      );
-      
-      if (isFree && isWorkHours(pointer) && isWorkHours(slotEnd.minus({ minutes: 1 }))) {
-        slots.push({
-          start: pointer.toISO(),
-          end: slotEnd.toISO()
-        });
-        pointer = slotEnd;
-      } else {
-        const nextBusy = merged.find(busy => busy.start > pointer);
-        if (nextBusy && nextBusy.start < effectiveEnd) {
-          pointer = nextBusy.end > pointer ? nextBusy.end : pointer.plus({ minutes: 1 });
-        } else {
-          pointer = pointer.plus({ minutes: 1 });
+      for (const busy of merged) {
+        if (busy.end.isBefore(dayStart) || busy.start.isAfter(dayEnd)) continue;
+        
+        const gapEnd = dayjs.min(busy.start, dayEnd);
+        while (cursor.add(durationMinutes, 'minute').isSameOrBefore(gapEnd)) {
+          slots.push({
+            start: cursor.toISOString(),
+            end: cursor.add(durationMinutes, 'minute').toISOString()
+          });
+          cursor = cursor.add(durationMinutes, 'minute');
         }
+        cursor = dayjs.max(cursor, busy.end);
+      }
+
+      while (cursor.add(durationMinutes, 'minute').isSameOrBefore(dayEnd)) {
+        slots.push({
+          start: cursor.toISOString(),
+          end: cursor.add(durationMinutes, 'minute').toISOString()
+        });
+        cursor = cursor.add(durationMinutes, 'minute');
       }
     }
     
-    curr = curr.plus({ days: 1 }).startOf('day');
+    currentDay = currentDay.add(1, 'day');
   }
-  
+
   return slots;
-};
+}
 export default findAvailableSlots;
\ No newline at end of file
diff --git a/tests/7_scheduler/outputs/google_gemini-2.5-pro TEMP_0.7.js b/tests/7_scheduler/outputs/google_gemini-2.5-pro TEMP_0.7.js
index 4cab5d6..835897a 100644
--- a/tests/7_scheduler/outputs/google_gemini-2.5-pro TEMP_0.7.js	
+++ b/tests/7_scheduler/outputs/google_gemini-2.5-pro TEMP_0.7.js	
@@ -1,56 +1,68 @@
-async function findAvailableSlots(
-  calendar1,
-  calendar2,
-  { durationMinutes: dur, searchRange: sr, workHours: wh }
-) {
-  const dayjs = (await import('https://cdn.skypack.dev/dayjs')).default;
-  const utc = (await import('https://cdn.skypack.dev/dayjs/plugin/utc')).default;
-  dayjs.extend(utc);
+async function findAvailableSlots(calendar1, calendar2, constraints) {
+  const [dayjsModule, durationModule] = await Promise.all([
+    import('https://cdn.jsdelivr.net/npm/dayjs@1/dayjs.min.js'),
+    import('https://cdn.jsdelivr.net/npm/dayjs@1/plugin/duration.js')
+  ]);
+  const dayjs = dayjsModule.default;
+  dayjs.extend(durationModule.default);
 
-  const d = (s) => dayjs.utc(s);
-  const rangeStart = d(sr.start);
-  const rangeEnd = d(sr.end);
-  const [whsH, whsM] = wh.start.split(':');
-  const [wheH, wheM] = wh.end.split(':');
+  const { durationMinutes: duration, searchRange, workHours } = constraints;
+  const searchStart = dayjs(searchRange.start);
+  const searchEnd = dayjs(searchRange.end);
+  const [workStartH, workStartM] = workHours.start.split(':').map(Number);
+  const [workEndH, workEndM] = workHours.end.split(':').map(Number);
 
-  const busySlots = [...calendar1, ...calendar2].map(({ start, end }) => ({
-    start: d(start),
-    end: d(end),
-  }));
+  const toDayjs = ({ start, end }) => ({ start: dayjs(start), end: dayjs(end) });
+  const allBusy = [...calendar1, ...calendar2].map(toDayjs);
 
-  for (let day = rangeStart.clone().startOf('d'); day.isBefore(rangeEnd); day = day.add(1, 'd')) {
-    busySlots.push({ start: day.startOf('d'), end: day.hour(whsH).minute(whsM) });
-    busySlots.push({ start: day.hour(wheH).minute(wheM), end: day.endOf('d') });
+  for (let day = searchStart.clone().startOf('day'); day.isBefore(searchEnd); day = day.add(1, 'day')) {
+    allBusy.push({
+      start: day,
+      end: day.hour(workStartH).minute(workStartM)
+    });
+    allBusy.push({
+      start: day.hour(workEndH).minute(workEndM),
+      end: day.endOf('day')
+    });
   }
 
-  const merged = busySlots
-    .filter(({ start, end }) => start.isBefore(end))
+  const mergedBusy = allBusy
     .sort((a, b) => a.start - b.start)
-    .reduce((acc, cur) => {
+    .reduce((acc, slot) => {
       const last = acc.at(-1);
-      if (!last || cur.start.isAfter(last.end)) {
-        acc.push(cur);
-      } else if (cur.end.isAfter(last.end)) {
-        last.end = cur.end;
+      if (last && slot.start <= last.end) {
+        if (slot.end > last.end) last.end = slot.end;
+      } else {
+        acc.push({ ...slot });
       }
       return acc;
     }, []);
 
-  const available = [];
-  let cursor = rangeStart;
+  const availableSlots = [];
+  let nextFreeStart = searchStart;
 
-  [...merged, { start: rangeEnd, end: rangeEnd }].forEach((busy) => {
-    const gapEnd = busy.start;
-    for (let slotStart = cursor; !slotStart.add(dur, 'm').isAfter(gapEnd); slotStart = slotStart.add(dur, 'm')) {
-      const slotEnd = slotStart.add(dur, 'm');
-      available.push({
-        start: slotStart.toISOString(),
-        end: slotEnd.toISOString(),
-      });
+  const findSlotsInGap = (start, end) => {
+    let slotStart = start;
+    while (slotStart.add(duration, 'minute') <= end) {
+      const slotEnd = slotStart.add(duration, 'minute');
+      availableSlots.push({ start: slotStart.toISOString(), end: slotEnd.toISOString() });
+      slotStart = slotEnd;
+    }
+  };
+
+  mergedBusy.forEach(busySlot => {
+    if (busySlot.start > nextFreeStart) {
+      findSlotsInGap(nextFreeStart, busySlot.start);
+    }
+    if (busySlot.end > nextFreeStart) {
+      nextFreeStart = busySlot.end;
     }
-    cursor = cursor.isAfter(busy.end) ? cursor : busy.end;
   });
 
-  return available;
+  if (searchEnd > nextFreeStart) {
+    findSlotsInGap(nextFreeStart, searchEnd);
+  }
+
+  return availableSlots;
 }
 export default findAvailableSlots;
\ No newline at end of file
diff --git a/tests/7_scheduler/outputs/openai_gpt-5-codex.js b/tests/7_scheduler/outputs/openai_gpt-5-codex.js
index 7c8a3c6..2b91fda 100644
--- a/tests/7_scheduler/outputs/openai_gpt-5-codex.js
+++ b/tests/7_scheduler/outputs/openai_gpt-5-codex.js
@@ -1,55 +1,40 @@
-let df
-async function findAvailableSlots(a,b,c){
-  df??=await import('https://cdn.jsdelivr.net/npm/date-fns@3.6.0/+esm')
-  const {parseISO:pi,formatISO:fi,eachDayOfInterval:ed,set:st}=df
-  const sr=pi(c.searchRange.start),er=pi(c.searchRange.end),srT=+sr,erT=+er
-  const [hs,ms]=c.workHours.start.split(':').map(Number)
-  const [he,me]=c.workHours.end.split(':').map(Number)
-  const step=c.durationMinutes*6e4
-  const norm=u=>{
-    const arr=u.map(v=>({s:+pi(v.start),e:+pi(v.end)})).filter(v=>v.e>srT&&v.s<erT).map(v=>({s:Math.max(v.s,srT),e:Math.min(v.e,erT)})).filter(v=>v.e>v.s).sort((x,y)=>x.s-y.s)
-    const out=[]
-    arr.forEach(v=>{
-      const w=out[out.length-1]
-      if(!w||v.s>w.e)out.push({s:v.s,e:v.e})
-      else w.e=Math.max(w.e,v.e)
-    })
-    return out
+let cache
+const load=()=>cache||(cache=import('https://cdn.skypack.dev/date-fns@2.30.0?min'))
+async function findAvailableSlots(calA,calB,rules){
+ const {parseISO:iso,addMinutes:plus,differenceInMinutes:gap,eachDayOfInterval:days,set:setTime,max:maxDate,min:minDate}=await load()
+ const parseCal=c=>c.map(({start,end})=>({start:iso(start),end:iso(end)}))
+ const [sh,sm]=rules.workHours.start.split(':').map(Number)
+ const [eh,em]=rules.workHours.end.split(':').map(Number)
+ const rangeStart=iso(rules.searchRange.start),rangeEnd=iso(rules.searchRange.end)
+ const entries=[...parseCal(calA),...parseCal(calB)].filter(b=>b.end>rangeStart&&b.start<rangeEnd).sort((a,b)=>a.start-b.start)
+ const slots=[]
+ const addFree=(s,e)=>{
+  let cursor=s
+  while(gap(e,cursor)>=rules.durationMinutes){
+   const stop=plus(cursor,rules.durationMinutes)
+   slots.push({start:cursor.toISOString(),end:stop.toISOString()})
+   cursor=stop
   }
-  const free=u=>{
-    const busy=norm(u),days=ed({start:sr,end:er}),out=[]
-    let i=0
-    for(const day of days){
-      const d0=Math.max(+st(day,{hours:hs,minutes:ms,seconds:0,milliseconds:0}),srT)
-      const d1=Math.min(+st(day,{hours:he,minutes:me,seconds:0,milliseconds:0}),erT)
-      if(d0>=d1)continue
-      while(i<busy.length&&busy[i].e<=d0)i++
-      let cur=d0,j=i
-      while(j<busy.length&&busy[j].s<d1){
-        if(busy[j].s>cur)out.push({s:cur,e:Math.min(busy[j].s,d1)})
-        cur=Math.max(cur,busy[j].e)
-        if(cur>=d1)break
-        j++
-      }
-      if(cur<d1)out.push({s:cur,e:d1})
-      i=j
-    }
-    return out
+ }
+ for(const day of days({start:rangeStart,end:rangeEnd})){
+  const workStart=setTime(day,{hours:sh,minutes:sm,seconds:0,milliseconds:0})
+  const workEnd=setTime(day,{hours:eh,minutes:em,seconds:0,milliseconds:0})
+  let spanStart=maxDate([workStart,rangeStart]),spanEnd=minDate([workEnd,rangeEnd])
+  if(spanStart>=spanEnd)continue
+  const busy=entries.filter(b=>b.end>spanStart&&b.start<spanEnd).map(b=>({start:maxDate([b.start,spanStart]),end:minDate([b.end,spanEnd])})).sort((a,b)=>a.start-b.start)
+  const merged=[]
+  for(const block of busy){
+   const last=merged[merged.length-1]
+   if(!last||block.start>last.end)merged.push({start:block.start,end:block.end})
+   else if(block.end>last.end)last.end=block.end
   }
-  const x=free(a),y=free(b),res=[]
-  let i=0,j=0
-  while(i<x.length&&j<y.length){
-    const s=Math.max(x[i].s,y[j].s)
-    const e=Math.min(x[i].e,y[j].e)
-    if(e-s>=step){
-      const k=Math.floor((e-s)/step)
-      for(let n=0;n<k;n++){
-        const start=s+n*step,end=start+step
-        res.push({start:fi(new Date(start)),end:fi(new Date(end))})
-      }
-    }
-    x[i].e<y[j].e?i++:x[i].e>y[j].e?j++:(i++,j++)
+  let cursor=spanStart
+  for(const block of merged){
+   if(block.start>cursor)addFree(cursor,block.start)
+   if(block.end>cursor)cursor=block.end
   }
-  return res
+  if(cursor<spanEnd)addFree(cursor,spanEnd)
+ }
+ return slots
 }
 export default findAvailableSlots;
\ No newline at end of file
diff --git a/tests/7_scheduler/outputs/openrouter_polaris-alpha.js b/tests/7_scheduler/outputs/openrouter_polaris-alpha.js
index f91b637..f92592f 100644
--- a/tests/7_scheduler/outputs/openrouter_polaris-alpha.js
+++ b/tests/7_scheduler/outputs/openrouter_polaris-alpha.js
@@ -1,115 +1,75 @@
-async function findAvailableSlots(calA, calB, c) {
-  const { DateTime, Interval } = await import('https://cdn.skypack.dev/luxon').then(m => m);
-  const d = c.durationMinutes;
-  const z = DateTime.utc().zoneName;
-  const parseIso = s => DateTime.fromISO(s, { zone: 'utc' });
-  const parseHm = (hm, base) => {
-    const [H, M] = hm.split(':').map(Number);
-    return base.set({ hour: H, minute: M, second: 0, millisecond: 0 });
-  };
-  const toIso = dt => dt.toUTC().toISO();
+async function findAvailableSlots(cal1, cal2, c) {
+  const { DateTime, Interval } = await import('https://cdn.skypack.dev/luxon')
+  const d = c.durationMinutes
+  const sR = c.searchRange
+  const wH = c.workHours
+  const z = 'UTC'
+  const p = (x, y) => DateTime.fromISO(x, { zone: y })
+  const b = c => c.map(v => Interval.fromDateTimes(p(v.start, z), p(v.end, z)))
+  const m = (a, b) => [...a, ...b].sort((x, y) => x.start - y.start)
+  const n = i => {
+    const r = []
+    let c = i[0]
+    for (let k = 1; k < i.length; k++) {
+      const v = i[k]
+      if (c.overlaps(v) || c.abutsStart(v)) c = Interval.fromDateTimes(c.start, c.end > v.end ? c.end : v.end)
+      else r.push(c), (c = v)
+    }
+    r.push(c)
+    return r
+  }
+  const iA = b(cal1)
+  const iB = b(cal2)
+  const all = m(iA, iB)
+  const busy = all.length ? n(all) : []
+  const srI = Interval.fromDateTimes(p(sR.start, z), p(sR.end, z))
+  const whS = wH.start.split(':').map(Number)
+  const whE = wH.end.split(':').map(Number)
 
-  const rStart = parseIso(c.searchRange.start);
-  const rEnd = parseIso(c.searchRange.end);
-
-  const dayRange = [];
-  for (let d0 = rStart.startOf('day'); d0 < rEnd; d0 = d0.plus({ days: 1 })) {
-    const ws = parseHm(c.workHours.start, d0);
-    const we = parseHm(c.workHours.end, d0);
-    const s = ws < rStart ? rStart : ws;
-    const e = we > rEnd ? rEnd : we;
-    if (e > s) dayRange.push(Interval.fromDateTimes(s, e));
+  const dayI = []
+  let cur = srI.start.startOf('day')
+  const endDay = srI.end.startOf('day')
+  while (cur <= endDay) {
+    const ws = cur.set({ hour: whS[0], minute: whS[1] })
+    const we = cur.set({ hour: whE[0], minute: whE[1] })
+    const w = Interval.fromDateTimes(ws, we)
+    const clipped = srI.intersection(w)
+    if (clipped && clipped.isValid && clipped.length('minutes') >= d) dayI.push(clipped)
+    cur = cur.plus({ days: 1 })
   }
 
-  const normalizeBusy = cal =>
-    cal
-      .map(({ start, end }) => {
-        const s = parseIso(start), e = parseIso(end);
-        return e > s ? Interval.fromDateTimes(s, e) : null;
-      })
-      .filter(Boolean)
-      .sort((a, b) => a.start - b.start);
-
-  const mergeBusy = busy => {
-    const m = [];
-    for (const i of busy) {
-      const last = m[m.length - 1];
-      if (!last || i.start > last.end) m.push(i);
-      else if (i.end > last.end) last.end = i.end;
+  const inv = []
+  let pS = null
+  for (const x of busy) {
+    const xs = x.start < srI.start ? srI.start : x.start
+    const xe = x.end > srI.end ? srI.end : x.end
+    if (!pS) {
+      if (xs > srI.start) inv.push(Interval.fromDateTimes(srI.start, xs))
+      pS = xe
+    } else {
+      if (xs > pS) inv.push(Interval.fromDateTimes(pS, xs))
+      if (xe > pS) pS = xe
     }
-    return m;
-  };
+  }
+  if (!busy.length) inv.push(srI)
+  else if (pS < srI.end) inv.push(Interval.fromDateTimes(pS, srI.end))
 
-  const intersectWithRange = (busy, ranges) => {
-    const res = [];
-    let j = 0;
-    for (const r of ranges) {
-      while (j < busy.length && busy[j].end <= r.start) j++;
-      let k = j;
-      while (k < busy.length && busy[k].start < r.end) {
-        const s = busy[k].start < r.start ? r.start : busy[k].start;
-        const e = busy[k].end > r.end ? r.end : busy[k].end;
-        if (e > s) res.push(Interval.fromDateTimes(s, e));
-        k++;
-      }
+  const freeWithinRange = inv
+    .map(v => dayI.map(dv => dv.intersection(v)).filter(x => x && x.isValid))
+    .flat()
+    .filter(x => x.length('minutes') >= d)
+
+  const res = []
+  for (const f of freeWithinRange) {
+    let st = f.start
+    const mins = f.length('minutes')
+    const steps = Math.floor(mins / d)
+    for (let i = 0; i < steps; i++) {
+      const en = st.plus({ minutes: d })
+      res.push({ start: st.toISO(), end: en.toISO() })
+      st = en
     }
-    return mergeBusy(res);
-  };
-
-  const invertBusy = (busy, ranges) => {
-    const free = [];
-    for (const r of ranges) {
-      let cur = r.start;
-      for (const b of busy) {
-        if (b.end <= r.start || b.start >= r.end) continue;
-        if (b.start > cur) free.push(Interval.fromDateTimes(cur, b.start));
-        if (b.end > cur) cur = b.end;
-        if (cur >= r.end) break;
-      }
-      if (cur < r.end) free.push(Interval.fromDateTimes(cur, r.end));
-    }
-    return free;
-  };
-
-  const intersectFree = (fa, fb) => {
-    const res = [];
-    let i = 0, j = 0;
-    while (i < fa.length && j < fb.length) {
-      const a = fa[i], b = fb[j];
-      const s = a.start > b.start ? a.start : b.start;
-      const e = a.end < b.end ? a.end : b.end;
-      if (e > s) res.push(Interval.fromDateTimes(s, e));
-      if (a.end < b.end) i++;
-      else j++;
-    }
-    return res;
-  };
-
-  const filterByDuration = (slots, minutes) => {
-    const out = [];
-    const dur = { minutes };
-    for (const s of slots) {
-      let cur = s.start;
-      while (cur.plus(dur) <= s.end) {
-        const end = cur.plus(dur);
-        out.push({ start: toIso(cur), end: toIso(end) });
-        cur = end;
-      }
-    }
-    return out;
-  };
-
-  const busyA = mergeBusy(normalizeBusy(calA));
-  const busyB = mergeBusy(normalizeBusy(calB));
-
-  const busyAIn = intersectWithRange(busyA, dayRange);
-  const busyBIn = intersectWithRange(busyB, dayRange);
-
-  const freeA = invertBusy(busyAIn, dayRange);
-  const freeB = invertBusy(busyBIn, dayRange);
-
-  const mutualFree = intersectFree(freeA, freeB);
-
-  return filterByDuration(mutualFree, d);
+  }
+  return res
 }
 export default findAvailableSlots;
\ No newline at end of file
diff --git a/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js b/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js
index f1866da..5fbf094 100644
--- a/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
+++ b/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5 TEMP_0.4.js	
@@ -1,18 +1,14 @@
 const validateJSON = async (data, schema) => {
-  const { default: Ajv } = await import('https://cdn.jsdelivr.net/npm/ajv@8.12.0/dist/2020.min.js');
-  
-  const ajv = new Ajv({ allErrors: true, strict: false });
+  const { default: Ajv } = await import('https://esm.sh/ajv@8.12.0');
+  const ajv = new Ajv({ allErrors: true });
   const validate = ajv.compile(schema);
   const valid = validate(data);
   
   return {
     valid,
-    errors: valid ? [] : validate.errors.map(e => ({
-      path: e.instancePath || '/',
-      message: e.message,
-      keyword: e.keyword,
-      params: e.params
-    }))
+    errors: valid ? [] : validate.errors.map(e => 
+      `${e.instancePath || '/'} ${e.message}`.trim()
+    )
   };
 };
 export default validateJSON;
\ No newline at end of file
diff --git a/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js b/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js
index bc8bb7e..5fbf094 100644
--- a/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
+++ b/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js	
@@ -1,16 +1,14 @@
 const validateJSON = async (data, schema) => {
-  const { default: Ajv } = await import('https://cdn.jsdelivr.net/npm/ajv@8/dist/2020.min.js');
-  const ajv = new Ajv({ allErrors: true, verbose: true });
+  const { default: Ajv } = await import('https://esm.sh/ajv@8.12.0');
+  const ajv = new Ajv({ allErrors: true });
   const validate = ajv.compile(schema);
   const valid = validate(data);
+  
   return {
     valid,
-    errors: valid ? [] : validate.errors.map(e => ({
-      path: e.instancePath || '/',
-      message: e.message,
-      keyword: e.keyword,
-      params: e.params
-    }))
+    errors: valid ? [] : validate.errors.map(e => 
+      `${e.instancePath || '/'} ${e.message}`.trim()
+    )
   };
 };
 export default validateJSON;
\ No newline at end of file
diff --git a/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5.js b/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5.js
index 4c929d0..e32b9f1 100644
--- a/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5.js
+++ b/tests/8_json_validator/outputs/anthropic_claude-sonnet-4.5.js
@@ -1,14 +1,13 @@
 const validateJSON = async (data, schema) => {
-  const { default: Ajv } = await import('https://cdn.jsdelivr.net/npm/ajv@8/dist/ajv.bundle.js');
-  
+  const { default: Ajv } = await import('https://esm.sh/ajv@8.12.0');
   const ajv = new Ajv({ allErrors: true });
   const validate = ajv.compile(schema);
   const valid = validate(data);
   
   return {
     valid,
-    errors: valid ? [] : validate.errors.map(e => 
-      `${e.instancePath || 'root'} ${e.message}`
+    errors: valid ? [] : validate.errors.map(err => 
+      `${err.instancePath || '/'} ${err.message}`.trim()
     )
   };
 };
diff --git a/tests/8_json_validator/outputs/google_gemini-2.5-pro TEMP_0.7.js b/tests/8_json_validator/outputs/google_gemini-2.5-pro TEMP_0.7.js
index 5aa6d27..e6a31d6 100644
--- a/tests/8_json_validator/outputs/google_gemini-2.5-pro TEMP_0.7.js	
+++ b/tests/8_json_validator/outputs/google_gemini-2.5-pro TEMP_0.7.js	
@@ -1,32 +1,25 @@
-let ajvPromise;
-const compiledSchemas = new WeakMap();
+const validateJSON = (() => {
+  let ajvPromise;
+  const validatorCache = new WeakMap();
+
+  return async (json, schema) => {
+    ajvPromise ||= import('https://cdn.jsdelivr.net/npm/ajv@8/dist/ajv2020.min.js')
+      .then(({ default: Ajv }) => new Ajv({ allErrors: true }));
 
-const validateJSON = async (json, schema) => {
-  try {
-    ajvPromise ||= import('https://esm.sh/ajv@8').then(
-      ({ default: Ajv }) => new Ajv({ allErrors: true })
-    );
     const ajv = await ajvPromise;
 
-    let validate = compiledSchemas.get(schema);
+    let validate = validatorCache.get(schema);
     if (!validate) {
       validate = ajv.compile(schema);
-      compiledSchemas.set(schema, validate);
+      validatorCache.set(schema, validate);
     }
 
     const valid = validate(json);
-    const errors = valid
-      ? []
-      : (validate.errors ?? []).map(({ instancePath, message }) =>
-          `${instancePath.substring(1) || 'root'}: ${message}`
-        );
+    const errors = valid ? [] : validate.errors.map(
+      ({ instancePath, message }) => `${instancePath || 'object'} ${message}`
+    );
 
     return { valid, errors };
-  } catch (error) {
-    return {
-      valid: false,
-      errors: [error.message || 'An unknown validation error occurred.'],
-    };
-  }
-};
+  };
+})();
 export default validateJSON;
\ No newline at end of file
diff --git a/tests/8_json_validator/outputs/openai_gpt-5-codex.js b/tests/8_json_validator/outputs/openai_gpt-5-codex.js
index 2bf20b0..96979ba 100644
--- a/tests/8_json_validator/outputs/openai_gpt-5-codex.js
+++ b/tests/8_json_validator/outputs/openai_gpt-5-codex.js
@@ -1,17 +1,25 @@
-let ajvReady
-const loadAjv=()=>ajvReady??=(async()=>{
-  const {default:Ajv}=await import('https://cdn.jsdelivr.net/npm/ajv@8/dist/ajv2020.mjs')
-  return new Ajv({allErrors:true,strict:false})
-})()
+let ajv
+const cache=new WeakMap()
+const ensureAjv=async()=>ajv??=new (await import('https://cdn.jsdelivr.net/npm/ajv@8.12.0/+esm')).default({allErrors:true,strict:false})
+const getValidator=async schema=>{
+  if(cache.has(schema))return cache.get(schema)
+  const v=(await ensureAjv()).compile(schema)
+  cache.set(schema,v)
+  return v
+}
 async function validateJSON(data,schema){
-  const ajv=await loadAjv()
-  const validate=ajv.compile(schema)
-  const valid=validate(data)
-  const errors=valid?[]:validate.errors?.map(({instancePath,message,params})=>{
-    const here=instancePath||'/'
-    const extra=params&&Object.keys(params).length?JSON.stringify(params):''
-    return [here,message,extra].filter(Boolean).join(' ')
-  })||[]
-  return {valid,errors}
+  try{
+    const v=await getValidator(schema)
+    const valid=v(data)
+    const errors=valid?[]:(v.errors||[]).map(e=>{
+      const path=e.instancePath||'/'
+      const msg=e.message||'Invalid value'
+      const meta=e.params&&Object.keys(e.params).length?` ${JSON.stringify(e.params)}`:''
+      return`${path} ${msg}${meta}`.trim()
+    })
+    return{valid,errors}
+  }catch(err){
+    return{valid:false,errors:[err?.message||String(err)]}
+  }
 }
 export default validateJSON;
\ No newline at end of file
diff --git a/tests/8_json_validator/outputs/openrouter_polaris-alpha.js b/tests/8_json_validator/outputs/openrouter_polaris-alpha.js
index 7e0f540..6018eed 100644
--- a/tests/8_json_validator/outputs/openrouter_polaris-alpha.js
+++ b/tests/8_json_validator/outputs/openrouter_polaris-alpha.js
@@ -1,15 +1,21 @@
 async function validateJSON(data, schema) {
-  const {default: Ajv} = await import('https://cdn.jsdelivr.net/npm/ajv@8/dist/ajv.min.js')
-  const ajv = new Ajv({allErrors:true, strict:false})
-  const validate = ajv.compile(schema)
-  const valid = validate(data)
-  if (valid) return {valid:true, errors:[]}
-  const errors = (validate.errors || []).map(e => {
-    const path = (e.instancePath || e.dataPath || '') || (e.schemaPath || '')
-    const msg = e.message || 'Invalid value'
-    const params = e.params ? JSON.stringify(e.params) : ''
-    return [path, msg, params].filter(Boolean).join(' - ')
-  })
-  return {valid:false, errors}
+  const { default: Ajv } = await import('https://cdn.skypack.dev/ajv@8?min');
+  const { default: addFormats } = await import('https://cdn.skypack.dev/ajv-formats@2?min');
+  const ajv = new Ajv({ allErrors: true, strict: false });
+  addFormats(ajv);
+  const compile = s => {
+    const c = ajv.compile(s);
+    return d => ({ ok: c(d), errs: c.errors || [] });
+  };
+  const run = compile(schema);
+  const r = run(data);
+  if (r.ok) return { valid: true, errors: [] };
+  const errors = r.errs.map(e => {
+    const p = e.instancePath || e.dataPath || '';
+    const loc = p || e.schemaPath || '';
+    const msg = e.message || 'Invalid value';
+    return loc ? loc + ' ' + msg : msg;
+  });
+  return { valid: false, errors };
 }
 export default validateJSON;
\ No newline at end of file