loop-benchmarking

Controlled experiments across agentic coding configurations. Same task, one variable, what actually works.
git clone https://git.shiptheloop.com/loop-benchmarking.git
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PCAPlot.tsx (19306B)


      1 import React, { useState, useMemo, useRef, useCallback } from "react";
      2 import { Canvas, type ThreeEvent } from "@react-three/fiber";
      3 import { OrbitControls, Html, Line } from "@react-three/drei";
      4 import * as THREE from "three";
      5 import { getModelColor, modelSortOrder } from "../lib/colors";
      6 
      7 interface PCAPoint {
      8   run_id: string;
      9   short_id: string;
     10   model: string;
     11   score: number;
     12   pc1: number;
     13   pc2: number;
     14   pc3: number;
     15   config_summary: string;
     16 }
     17 
     18 interface PCALoading {
     19   feature: string;
     20   axis: string;
     21   pc1: number;
     22   pc2: number;
     23   pc3: number;
     24 }
     25 
     26 interface PCAAxisImportance {
     27   axis: string;
     28   pc1: number;
     29   pc2: number;
     30   pc3: number;
     31   total: number;
     32 }
     33 
     34 interface PCAData {
     35   n_runs: number;
     36   n_features: number;
     37   n_components: number;
     38   variance_explained: number[];
     39   scree?: number[];
     40   points: PCAPoint[];
     41   loadings: PCALoading[];
     42   axis_importance: PCAAxisImportance[];
     43 }
     44 
     45 interface PCAPlotProps {
     46   data: PCAData;
     47 }
     48 
     49 type PCKey = "pc1" | "pc2" | "pc3" | "pc4" | "pc5" | "pc6" | "pc7" | "pc8" | "pc9" | "pc10";
     50 
     51 const AXIS_LABELS: Record<string, string> = {
     52   model: "Model",
     53   effort: "Effort",
     54   prompt_style: "Prompt Style",
     55   language: "Language",
     56   human_language: "Human Language",
     57   tool_read: "Tool: Read",
     58   tool_write: "Tool: Write",
     59   tool_edit: "Tool: Edit",
     60   tool_glob: "Tool: Glob",
     61   tool_grep: "Tool: Grep",
     62   linter: "Linter",
     63   playwright: "Playwright",
     64   context_file: "Context File",
     65   web_search: "Web Search",
     66   max_budget: "Budget",
     67   tests_provided: "Tests Provided",
     68   strategy: "Strategy",
     69   design_guidance: "Design Guidance",
     70   architecture: "Architecture",
     71   error_checking: "Error Checking",
     72   context_noise: "Context Noise",
     73   renderer: "Renderer",
     74   provider: "Provider",
     75 };
     76 
     77 // Convert HSL string to hex for Three.js
     78 function hslToHex(hsl: string): string {
     79   // Handle both "hsl(193 44% 67%)" and "hsl(193, 44%, 67%)" formats
     80   const match = hsl.match(/hsl\((\d+)[,\s]+(\d+)%[,\s]+(\d+)%\)/);
     81   if (!match) return "#888888";
     82   const h = parseInt(match[1]) / 360;
     83   const s = parseInt(match[2]) / 100;
     84   const l = parseInt(match[3]) / 100;
     85 
     86   const a2 = s * Math.min(l, 1 - l);
     87   const f = (n: number) => {
     88     const k = (n + h * 12) % 12;
     89     const color = l - a2 * Math.max(Math.min(k - 3, 9 - k, 1), -1);
     90     return Math.round(255 * color)
     91       .toString(16)
     92       .padStart(2, "0");
     93   };
     94   return `#${f(0)}${f(8)}${f(4)}`;
     95 }
     96 
     97 interface NormalizedPoint extends PCAPoint {
     98   nx: number;
     99   ny: number;
    100   nz: number;
    101   radius: number;
    102   color: string;
    103   hexColor: string;
    104 }
    105 
    106 interface SceneProps {
    107   points: NormalizedPoint[];
    108   varianceExplained: number[];
    109   onHover: (point: NormalizedPoint | null) => void;
    110   hoveredPoint: NormalizedPoint | null;
    111 }
    112 
    113 function AxisLine({
    114   start,
    115   end,
    116   label,
    117 }: {
    118   start: [number, number, number];
    119   end: [number, number, number];
    120   label: string;
    121 }) {
    122   return (
    123     <>
    124       <Line
    125         points={[start, end]}
    126         color="#5a6078"
    127         lineWidth={1.5}
    128       />
    129       <Html position={end} style={{ pointerEvents: "none" }}>
    130         <div
    131           style={{
    132             fontFamily: "'JetBrains Mono', monospace",
    133             fontSize: "10px",
    134             color: "hsl(213 14% 55%)",
    135             whiteSpace: "nowrap",
    136             userSelect: "none",
    137           }}
    138         >
    139           {label}
    140         </div>
    141       </Html>
    142     </>
    143   );
    144 }
    145 
    146 function GridLines() {
    147   const gridColor = "#2d3045";
    148   const lines: Array<{ start: [number, number, number]; end: [number, number, number] }> = [
    149     // Lines at y=0, z=0 plane (along x)
    150     { start: [-1.3, 0, 0], end: [1.3, 0, 0] },
    151     // Lines at x=0, z=0 plane (along y)
    152     { start: [0, -1.3, 0], end: [0, 1.3, 0] },
    153     // Lines at x=0, y=0 plane (along z)
    154     { start: [0, 0, -1.3], end: [0, 0, 1.3] },
    155   ];
    156 
    157   return (
    158     <>
    159       {lines.map((line, i) => (
    160         <Line
    161           key={i}
    162           points={[line.start, line.end]}
    163           color={gridColor}
    164           lineWidth={0.5}
    165           dashed
    166           dashSize={0.05}
    167           gapSize={0.05}
    168         />
    169       ))}
    170     </>
    171   );
    172 }
    173 
    174 function DataPoint({
    175   point,
    176   onHover,
    177   isHovered,
    178 }: {
    179   point: NormalizedPoint;
    180   onHover: (point: NormalizedPoint | null) => void;
    181   isHovered: boolean;
    182 }) {
    183   const meshRef = useRef<THREE.Mesh>(null);
    184 
    185   const handlePointerOver = useCallback(
    186     (e: ThreeEvent<PointerEvent>) => {
    187       e.stopPropagation();
    188       onHover(point);
    189       document.body.style.cursor = "pointer";
    190     },
    191     [point, onHover]
    192   );
    193 
    194   const handlePointerOut = useCallback(
    195     (e: ThreeEvent<PointerEvent>) => {
    196       e.stopPropagation();
    197       onHover(null);
    198       document.body.style.cursor = "auto";
    199     },
    200     [onHover]
    201   );
    202 
    203   return (
    204     <mesh
    205       ref={meshRef}
    206       position={[point.nx, point.ny, point.nz]}
    207       onPointerOver={handlePointerOver}
    208       onPointerOut={handlePointerOut}
    209     >
    210       <sphereGeometry args={[isHovered ? point.radius * 1.4 : point.radius, 16, 16]} />
    211       <meshStandardMaterial
    212         color={point.hexColor}
    213         transparent
    214         opacity={isHovered ? 1.0 : 0.7}
    215         emissive={point.hexColor}
    216         emissiveIntensity={isHovered ? 0.4 : 0.15}
    217       />
    218     </mesh>
    219   );
    220 }
    221 
    222 function HoverTooltip({ point }: { point: NormalizedPoint }) {
    223   const scorePct = Math.round(point.score * 100);
    224   const scoreColor =
    225     scorePct >= 70
    226       ? "hsl(92 28% 65%)"
    227       : scorePct >= 40
    228         ? "hsl(40 71% 73%)"
    229         : "hsl(355 52% 64%)";
    230 
    231   return (
    232     <Html
    233       position={[point.nx, point.ny, point.nz]}
    234       style={{ pointerEvents: "none" }}
    235       center
    236     >
    237       <div
    238         style={{
    239           background: "hsl(217 16% 15.5%)",
    240           border: "1px solid hsl(217 17% 28%)",
    241           fontFamily: "'JetBrains Mono', monospace",
    242           fontSize: "11px",
    243           padding: "8px 10px",
    244           lineHeight: "1.6",
    245           color: "hsl(213 14% 80%)",
    246           maxWidth: 260,
    247           whiteSpace: "nowrap",
    248           transform: "translate(16px, -50%)",
    249           pointerEvents: "none",
    250         }}
    251       >
    252         <div style={{ display: "flex", justifyContent: "space-between", gap: 12 }}>
    253           <span style={{ fontWeight: 600, color: point.color }}>
    254             {point.model}
    255           </span>
    256           <span style={{ fontWeight: 600, color: scoreColor }}>
    257             {scorePct}%
    258           </span>
    259         </div>
    260         <div style={{ marginTop: 4, color: "hsl(213 14% 55%)", fontSize: "10px" }}>
    261           {point.short_id}
    262         </div>
    263         {point.config_summary && (
    264           <div
    265             style={{
    266               marginTop: 4,
    267               fontSize: "10px",
    268               color: "hsl(213 14% 65%)",
    269               whiteSpace: "normal",
    270               wordBreak: "break-word",
    271             }}
    272           >
    273             {point.config_summary}
    274           </div>
    275         )}
    276       </div>
    277     </Html>
    278   );
    279 }
    280 
    281 function Scene({ points, varianceExplained, onHover, hoveredPoint }: SceneProps) {
    282   return (
    283     <>
    284       <ambientLight intensity={0.6} />
    285       <pointLight position={[5, 5, 5]} intensity={0.8} />
    286       <pointLight position={[-5, -5, -5]} intensity={0.3} />
    287 
    288       <OrbitControls
    289         enableDamping
    290         dampingFactor={0.1}
    291         minDistance={1}
    292         maxDistance={8}
    293       />
    294 
    295       <GridLines />
    296 
    297       {/* Axis lines */}
    298       <AxisLine
    299         start={[0, 0, 0]}
    300         end={[1.5, 0, 0]}
    301         label={`PC1 (${varianceExplained[0]}%)`}
    302       />
    303       <AxisLine
    304         start={[0, 0, 0]}
    305         end={[0, 1.5, 0]}
    306         label={`PC2 (${varianceExplained[1]}%)`}
    307       />
    308       <AxisLine
    309         start={[0, 0, 0]}
    310         end={[0, 0, 1.5]}
    311         label={`PC3 (${varianceExplained[2]}%)`}
    312       />
    313 
    314       {/* Data points */}
    315       {points.map((pt) => (
    316         <DataPoint
    317           key={pt.run_id}
    318           point={pt}
    319           onHover={onHover}
    320           isHovered={hoveredPoint?.run_id === pt.run_id}
    321         />
    322       ))}
    323 
    324       {/* Tooltip on hover */}
    325       {hoveredPoint && <HoverTooltip point={hoveredPoint} />}
    326     </>
    327   );
    328 }
    329 
    330 function LoadingsTable({
    331   data,
    332   pcKey,
    333   varianceExplained,
    334 }: {
    335   data: PCAData;
    336   pcKey: PCKey;
    337   varianceExplained: number;
    338 }) {
    339   const pcIndex = parseInt(pcKey.replace("pc", "")) - 1;
    340   const pcLabel = `PC${pcIndex + 1}`;
    341 
    342   // Top 5 axes by importance for this PC
    343   const topAxes = [...data.axis_importance]
    344     .sort((a, b) => (b[pcKey] as number) - (a[pcKey] as number))
    345     .slice(0, 5);
    346 
    347   // For each top axis, find the most significant feature loadings
    348   const axisDetails = topAxes.map((axEntry) => {
    349     const axisLoadings = data.loadings
    350       .filter((l) => l.axis === axEntry.axis)
    351       .sort((a, b) => Math.abs(b[pcKey] as number) - Math.abs(a[pcKey] as number));
    352     return {
    353       axis: axEntry.axis,
    354       label: AXIS_LABELS[axEntry.axis] || axEntry.axis,
    355       importance: axEntry[pcKey] as number,
    356       topFeatures: axisLoadings.slice(0, 3),
    357     };
    358   });
    359 
    360   return (
    361     <div>
    362       <div
    363         style={{
    364           fontSize: "11px",
    365           fontWeight: 600,
    366           marginBottom: 6,
    367           color: "hsl(213 14% 80%)",
    368         }}
    369       >
    370         {pcLabel}{" "}
    371         <span style={{ fontWeight: 400, color: "hsl(213 14% 55%)" }}>
    372           ({varianceExplained.toFixed(1)}% variance)
    373         </span>
    374       </div>
    375       <table
    376         style={{
    377           width: "100%",
    378           borderCollapse: "collapse",
    379           fontSize: "11px",
    380           fontFamily: "'JetBrains Mono', monospace",
    381         }}
    382       >
    383         <thead>
    384           <tr
    385             style={{
    386               borderBottom: "1px solid hsl(217 17% 28%)",
    387               color: "hsl(213 14% 55%)",
    388               textAlign: "left",
    389             }}
    390           >
    391             <th style={{ padding: "4px 8px 4px 0", fontWeight: 500 }}>Axis</th>
    392             <th style={{ padding: "4px 8px", fontWeight: 500, textAlign: "right" }}>
    393               Weight
    394             </th>
    395             <th style={{ padding: "4px 0 4px 8px", fontWeight: 500 }}>
    396               Top Contributors
    397             </th>
    398           </tr>
    399         </thead>
    400         <tbody>
    401           {axisDetails.map((ax) => (
    402             <tr
    403               key={ax.axis}
    404               style={{ borderBottom: "1px solid hsl(217 17% 22%)" }}
    405             >
    406               <td style={{ padding: "4px 8px 4px 0", color: "hsl(213 14% 80%)" }}>
    407                 {ax.label}
    408               </td>
    409               <td
    410                 style={{
    411                   padding: "4px 8px",
    412                   textAlign: "right",
    413                   fontWeight: 600,
    414                   color: "hsl(193 44% 67%)",
    415                 }}
    416               >
    417                 {ax.importance.toFixed(3)}
    418               </td>
    419               <td
    420                 style={{
    421                   padding: "4px 0 4px 8px",
    422                   color: "hsl(213 14% 55%)",
    423                   fontSize: "10px",
    424                 }}
    425               >
    426                 {ax.topFeatures.map((f, i) => {
    427                   const val = f[pcKey] as number;
    428                   const color =
    429                     val > 0 ? "hsl(92 28% 65%)" : "hsl(355 52% 64%)";
    430                   return (
    431                     <span key={f.feature}>
    432                       {i > 0 && ", "}
    433                       <span style={{ color }}>
    434                         {val > 0 ? "+" : ""}
    435                         {val.toFixed(3)}
    436                       </span>{" "}
    437                       {f.feature.replace(`${ax.axis}_`, "")}
    438                     </span>
    439                   );
    440                 })}
    441               </td>
    442             </tr>
    443           ))}
    444         </tbody>
    445       </table>
    446     </div>
    447   );
    448 }
    449 
    450 export default function PCAPlot({ data }: PCAPlotProps) {
    451   const [hoveredPoint, setHoveredPoint] = useState<NormalizedPoint | null>(null);
    452 
    453   // Normalize points to -1..1 range per axis and compute radii
    454   const { normalizedPoints, modelGroups } = useMemo(() => {
    455     const pc1Vals = data.points.map((p) => Math.abs(p.pc1));
    456     const pc2Vals = data.points.map((p) => Math.abs(p.pc2));
    457     const pc3Vals = data.points.map((p) => Math.abs(p.pc3));
    458     const maxPc1 = Math.max(...pc1Vals) || 1;
    459     const maxPc2 = Math.max(...pc2Vals) || 1;
    460     const maxPc3 = Math.max(...pc3Vals) || 1;
    461 
    462     const scores = data.points.map((p) => p.score);
    463     const minScore = Math.min(...scores);
    464     const maxScore = Math.max(...scores);
    465     const scoreRange = maxScore - minScore || 1;
    466 
    467     const pts: NormalizedPoint[] = data.points.map((p) => {
    468       const color = getModelColor(p.model);
    469       const t = (p.score - minScore) / scoreRange;
    470       return {
    471         ...p,
    472         nx: (p.pc1 / maxPc1) * 2.5,
    473         ny: (p.pc2 / maxPc2) * 2.5,
    474         nz: (p.pc3 / maxPc3) * 2.5,
    475         radius: 0.04 + t * 0.06,
    476         color,
    477         hexColor: hslToHex(color),
    478       };
    479     });
    480 
    481     // Group by model
    482     const groups: Record<string, NormalizedPoint[]> = {};
    483     for (const pt of pts) {
    484       (groups[pt.model] ??= []).push(pt);
    485     }
    486     const sorted = Object.entries(groups).sort(
    487       ([a], [b]) => modelSortOrder(a) - modelSortOrder(b)
    488     );
    489 
    490     return { normalizedPoints: pts, modelGroups: sorted };
    491   }, [data.points]);
    492 
    493   const handleHover = useCallback((point: NormalizedPoint | null) => {
    494     setHoveredPoint(point);
    495   }, []);
    496 
    497   return (
    498     <div style={{ display: "flex", flexDirection: "column", gap: 24 }}>
    499       {/* 3D scatter plot card */}
    500       <div className="card" style={{ position: "relative" }}>
    501         <div
    502           style={{
    503             display: "flex",
    504             alignItems: "center",
    505             gap: 8,
    506             marginBottom: 12,
    507             flexWrap: "wrap",
    508           }}
    509         >
    510           <span
    511             style={{
    512               fontSize: "12px",
    513               fontWeight: 400,
    514               color: "hsl(213 14% 55%)",
    515             }}
    516           >
    517             {data.n_runs} runs, {data.n_features} features
    518           </span>
    519           <span
    520             style={{
    521               fontSize: "10px",
    522               color: "hsl(213 14% 45%)",
    523               marginLeft: "auto",
    524             }}
    525           >
    526             Drag to rotate. Scroll to zoom. Point size proportional to score.
    527           </span>
    528         </div>
    529 
    530         {/* 3D Canvas */}
    531         <div style={{ width: "100%", height: 500, background: "#1a1d27" }}>
    532           <Canvas
    533             camera={{ position: [2.5, 2, 2.5], near: 0.1, far: 100 }}
    534             style={{ background: "#1a1d27" }}
    535             gl={{ antialias: true }}
    536           >
    537             <Scene
    538               points={normalizedPoints}
    539               varianceExplained={data.variance_explained}
    540               onHover={handleHover}
    541               hoveredPoint={hoveredPoint}
    542             />
    543           </Canvas>
    544         </div>
    545 
    546         {/* Legend */}
    547         <div
    548           style={{
    549             display: "flex",
    550             gap: 12,
    551             justifyContent: "center",
    552             marginTop: 12,
    553             flexWrap: "wrap",
    554           }}
    555         >
    556           {modelGroups.map(([model, pts]) => (
    557             <div
    558               key={model}
    559               style={{
    560                 display: "flex",
    561                 alignItems: "center",
    562                 gap: 4,
    563                 fontSize: "11px",
    564                 fontFamily: "'JetBrains Mono', monospace",
    565               }}
    566             >
    567               <div
    568                 style={{
    569                   width: 8,
    570                   height: 8,
    571                   background: getModelColor(model),
    572                 }}
    573               />
    574               <span style={{ color: getModelColor(model) }}>
    575                 {model}
    576               </span>
    577               <span style={{ color: "hsl(213 14% 45%)", fontSize: "10px" }}>
    578                 ({pts.length})
    579               </span>
    580             </div>
    581           ))}
    582         </div>
    583       </div>
    584 
    585       {/* Scree plot */}
    586       {data.scree && data.scree.length > 3 && (
    587         <div className="card">
    588           <h3 style={{ fontSize: "13px", fontWeight: 600, marginBottom: 12, color: "hsl(213 14% 80%)", textTransform: "uppercase", letterSpacing: "0.5px" }}>
    589             Variance by Component (Scree Plot)
    590           </h3>
    591           <div style={{ display: "flex", alignItems: "flex-end", gap: 3, height: 200 }}>
    592             {data.scree.slice(0, 20).map((v, i) => {
    593               const cumulative = data.scree.slice(0, i + 1).reduce((a, b) => a + b, 0);
    594               const maxV = data.scree[0];
    595               const barHeight = Math.max(4, (v / maxV) * 180);
    596               const isUsed = i < 3;
    597               const isExplained = i < 10;
    598               return (
    599                 <div key={i} style={{ flex: 1, display: "flex", flexDirection: "column", alignItems: "center", gap: 2 }}>
    600                   <span style={{ fontSize: "9px", fontFamily: "'JetBrains Mono', monospace", fontWeight: 600, color: isUsed ? "hsl(193 44% 67%)" : "hsl(213 14% 55%)" }}>
    601                     {v.toFixed(1)}%
    602                   </span>
    603                   <div
    604                     style={{
    605                       width: "100%",
    606                       height: `${barHeight}px`,
    607                       background: isUsed ? "hsl(193 44% 67%)" : isExplained ? "hsl(216 15% 40%)" : "hsl(216 15% 25%)",
    608                     }}
    609                     title={`PC${i + 1}: ${v.toFixed(1)}% (cumulative: ${cumulative.toFixed(1)}%)`}
    610                   />
    611                   <span style={{ fontSize: "9px", fontFamily: "'JetBrains Mono', monospace", color: isUsed ? "hsl(193 44% 67%)" : "hsl(213 14% 45%)" }}>
    612                     PC{i + 1}
    613                   </span>
    614                 </div>
    615               );
    616             })}
    617           </div>
    618           <div style={{ fontSize: "10px", color: "hsl(213 14% 55%)", marginTop: 8, textAlign: "center", fontFamily: "'JetBrains Mono', monospace" }}>
    619             3D view (cyan): {data.variance_explained.slice(0, 3).reduce((a, b) => a + b, 0).toFixed(1)}% | First 10: {data.scree.slice(0, 10).reduce((a, b) => a + b, 0).toFixed(1)}% | All {data.scree.length} components: {data.scree.reduce((a, b) => a + b, 0).toFixed(1)}%
    620           </div>
    621         </div>
    622       )}
    623 
    624       {/* Loadings interpretation card */}
    625       <div className="card">
    626         <h3
    627           style={{
    628             fontSize: "13px",
    629             fontWeight: 600,
    630             marginBottom: 16,
    631             color: "hsl(213 14% 80%)",
    632             textTransform: "uppercase",
    633             letterSpacing: "0.5px",
    634           }}
    635         >
    636           What do these dimensions mean?
    637         </h3>
    638         <p
    639           style={{
    640             fontSize: "11px",
    641             color: "hsl(213 14% 55%)",
    642             marginBottom: 16,
    643             lineHeight: 1.6,
    644           }}
    645         >
    646           Each principal component is a weighted combination of all configuration axes.
    647           Higher weight means that axis contributes more to the variance in that dimension.
    648           Green/red values show the direction of influence.
    649         </p>
    650         <div
    651           style={{
    652             display: "grid",
    653             gridTemplateColumns: "repeat(auto-fit, minmax(320px, 1fr))",
    654             gap: 16,
    655           }}
    656         >
    657           {Array.from({ length: Math.min(data.n_components, 10) }, (_, i) => `pc${i + 1}` as PCKey)
    658             .map((pc, idx) => (
    659               <LoadingsTable
    660                 key={pc}
    661                 data={data}
    662                 pcKey={pc}
    663                 varianceExplained={data.variance_explained[idx]}
    664               />
    665             ))}
    666         </div>
    667       </div>
    668 
    669       {/* Variance Explained section removed -- scree plot covers this */}
    670     </div>
    671   );
    672 }

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