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[tool Write]
{
  "file_path": "[workspace]/index.html",
  "content": "<!doctype html>\n<html lang=\"en\">\n<head>\n<meta charset=\"utf-8\">\n<meta name=\"viewport\" content=\"width=device-width,initial-scale=1,viewport-fit=cover\">\n<meta name=\"theme-color\" content=\"#0b0d14\">\n<title>Lava Lamp</title>\n<style>\n  :root { --s: 8px; }\n  html, body { margin: 0; height: 100%; overflow: hidden; background: #0b0d14; overscroll-behavior: none; }\n  canvas { position: fixed; inset: 0; width: 100%; height: 100%; display: block; }\n  .nogl { position: fixed; inset: 0; margin: 0; display: grid; place-items: center; color: #ccd; font: 16px system-ui, sans-serif; text-align: center; padding: 24px; }\n\n  #sw {\n    position: fixed;\n    left: calc(50% + var(--s) * 17);\n    bottom: calc(var(--s) * 6);\n    width: max(64px, calc(var(--s) * 9));\n    height: max(34px, calc(var(--s) * 4.8));\n    transform: translateX(-50%);\n    padding: 0; border-radius: 999px; cursor: pointer;\n    border: 1px solid rgba(255,255,255,.14);\n    background: linear-gradient(#17171b, #2a2a31);\n    box-shadow: 0 6px 12px rgba(0,0,0,.55), inset 0 2px 4px rgba(0,0,0,.6);\n    transition: background .3s, box-shadow .3s;\n    touch-action: manipulation; -webkit-tap-highlight-color: transparent;\n    font: 700 11px/1 system-ui, sans-serif; letter-spacing: .08em; color: #8a8a94;\n  }\n  #sw::after { content: \"\"; position: absolute; inset: -10px; }\n  #sw:focus-visible { outline: 2px solid #8cf; outline-offset: 3px; }\n  #sw[aria-checked=\"true\"] {\n    background: linear-gradient(#ff7a2a, #ffb04a);\n    box-shadow: 0 6px 12px rgba(0,0,0,.55), 0 0 18px rgba(255,140,50,.55), inset 0 2px 4px rgba(120,30,0,.45);\n    color: #5a2200;\n  }\n  #sw .knob {\n    position: absolute; top: 4px; left: 4px; height: calc(100% - 8px); aspect-ratio: 1; border-radius: 50%;\n    background: radial-gradient(circle at 35% 30%, #fff, #c9c9d2 70%, #9a9aa6);\n    box-shadow: 0 2px 4px rgba(0,0,0,.5);\n    transition: left .25s ease, transform .25s ease;\n  }\n  #sw[aria-checked=\"true\"] .knob { left: calc(100% - 4px); transform: translateX(-100%); }\n  #sw .lbl { position: absolute; top: 50%; transform: translateY(-50%); right: 11px; }\n  #sw[aria-checked=\"true\"] .lbl { right: auto; left: 11px; }\n</style>\n</head>\n<body>\n<canvas id=\"c\"></canvas>\n<button id=\"sw\" role=\"switch\" aria-checked=\"true\" aria-label=\"Lamp power\"><span class=\"lbl\">ON</span><span class=\"knob\"></span></button>\n\n<script>\n//PHYS-START\n// World units: y up, x centred on the lamp axis. Glass spans y = G0..G1.\nconst G0 = 27, G1 = 85, MAXB = 18, RMAX = 5.4;\nconst clamp = (v, a, b) => v < a ? a : v > b ? b : v;\nconst glassHW = y => 7.5 - 3.1 * clamp((y - G0) / (G1 - G0), 0, 1);\n\nconst sim = { t: 0, on: true, heat: 1, light: 1, pool: 33, merges: 0, splits: 0 };\nconst blobs = [];\n\nfunction mk(x, y, r, T) {\n  return { x, y, vx: 0, vy: 0, r, T, bias: (Math.random() - .5) * .12, lock: 0, ph: Math.random() * 6.283 };\n}\n\nfunction seed() {\n  blobs.length = 0;\n  for (let i = 0; i < 9; i++) {\n    const y = G0 + 6 + Math.random() * 46;\n    const b = mk((Math.random() - .5) * 6, y, 2 + Math.random() * 1.2, 0.3 + Math.random() * 0.6);\n    blobs.push(b);\n  }\n}\n\nfunction split(b) {\n  const s = 0.35 + Math.random() * 0.3;\n  const ang = Math.PI / 2 + (Math.random() - .5) * 1.0;\n  const ax = Math.cos(ang), ay = Math.sin(ang);\n  const r1 = b.r * Math.sqrt(s), r2 = b.r * Math.sqrt(1 - s);\n  const a = mk(b.x + ax * b.r * .45, b.y + ay * b.r * .45, r1, b.T);\n  const c = mk(b.x - ax * b.r * .45, b.y - ay * b.r * .45, r2, b.T);\n  a.vx = b.vx + ax * 1.3; a.vy = b.vy + ay * 1.3;\n  c.vx = b.vx - ax * 1.3; c.vy = b.vy - ay * 1.3;\n  a.lock = c.lock = 2.5;\n  blobs.splice(blobs.indexOf(b), 1, a, c);\n  sim.splits++;\n}\n\nfunction step(dt) {\n  sim.t += dt;\n  const t = sim.t;\n  sim.heat += ((sim.on ? 1 : 0) - sim.heat) * (1 - Math.exp(-dt / (sim.on ? 6 : 4)));\n  sim.light += ((sim.on ? 1 : 0) - sim.light) * (1 - Math.exp(-dt / (sim.on ? 0.7 : 1.4)));\n\n  for (const b of blobs) {\n    const h = clamp((b.y - G0) / (G1 - G0), 0, 1);\n    const gain = 0.24 * sim.heat * Math.exp(-Math.max(0, b.y - G0) / 9);\n    const loss = 0.02 + 0.15 * h * h;\n    b.T = clamp(b.T + (gain - loss) * dt, 0, 1);\n    b.lock -= dt;\n    // warm wax rises, cool wax sinks; bigger blobs move a little faster\n    const vt = (b.T - 0.5 - b.bias) * 9 * (0.55 + 0.14 * b.r);\n    b.vy += (vt - b.vy) * (1 - Math.exp(-dt * 1.2));\n    // convection: rise up the middle, sink along the walls\n    const vxt = (b.vy > 0 ? -0.25 : 0.1) * b.x + 0.8 * Math.sin(t * 0.5 + b.ph);\n    b.vx += (vxt - b.vx) * (1 - Math.exp(-dt * 1.5));\n  }\n\n  // touching blobs are drawn toward each other and merge\n  for (let i = 0; i < blobs.length; i++) {\n    for (let j = i + 1; j < blobs.length; j++) {\n      const a = blobs[i], b = blobs[j];\n      const dx = b.x - a.x, dy = b.y - a.y;\n      const d = Math.hypot(dx, dy) + 1e-6;\n      const rs = a.r + b.r;\n      const ra = a.r * a.r, rb = b.r * b.r;\n      const free = a.lock <= 0 && b.lock <= 0;\n      if (free && d < rs * 1.6) {\n        const k = 0.6 * (1 - d / (rs * 1.6)) * dt / d;\n        a.x += dx * k * rb / (ra + rb); a.y += dy * k * rb / (ra + rb);\n        b.x -= dx * k * ra / (ra + rb); b.y -= dy * k * ra / (ra + rb);\n      }\n      if (free && d < rs && blobs.length > 6) {\n        const area = ra + rb;\n        if (area <= RMAX * RMAX) {\n          a.x = (a.x * ra + b.x * rb) / area; a.y = (a.y * ra + b.y * rb) / area;\n          a.vx = (a.vx * ra + b.vx * rb) / area; a.vy = (a.vy * ra + b.vy * rb) / area;\n          a.T = (a.T * ra + b.T * rb) / area; a.bias = (a.bias + b.bias) / 2;\n          a.r = Math.sqrt(area);\n          blobs.splice(j, 1); j--;\n          sim.merges++;\n        } else if (d < rs * 0.8) {\n          const k = (rs * 0.8 - d) * 0.5 / d;\n          a.x -= dx * k; a.y -= dy * k; b.x += dx * k; b.y += dy * k;\n        }\n      }\n    }\n  }\n\n  for (const b of blobs) {\n    b.x += b.vx * dt; b.y += b.vy * dt;\n    const mx = Math.max(0, glassHW(b.y) - b.r * 0.85);\n    if (b.x > mx) { b.x = mx; if (b.vx > 0) b.vx = 0; }\n    if (b.x < -mx) { b.x = -mx; if (b.vx < 0) b.vx = 0; }\n    const lo = G0 + b.r * 0.5, hi = G1 - b.r * 0.9;\n    if (b.y < lo) { b.y = lo; if (b.vy < 0) b.vy = 0; }\n    if (b.y > hi) { b.y = hi; if (b.vy > 0) b.vy = 0; }\n  }\n\n  // big blobs stretch and pinch off, more readily while moving\n  if (blobs.length < MAXB) {\n    for (const b of blobs) {\n      if (b.r > 2.7 && b.lock <= 0) {\n        const rate = (b.r - 2.6) * 0.22 * (0.4 + Math.abs(b.vy) / 3) * (blobs.length < 8 ? 3 : 1);\n        if (Math.random() < rate * dt) { split(b); break; }\n      }\n    }\n  }\n\n  // the pool at the bottom thins out while wax is aloft\n  let aloft = 0, total = 0;\n  for (const b of blobs) { const a = b.r * b.r; total += a; if (b.y > G0 + 8) aloft += a; }\n  const target = 30 + 3.6 * (1 - aloft / Math.max(total, 1)) + 0.25 * Math.sin(t * 0.7);\n  sim.pool += (target - sim.pool) * (1 - Math.exp(-dt * 0.8));\n}\n//PHYS-END\n\n(() => {\n'use strict';\nconst cv = document.getElementById('c');\nconst sw = document.getElementById('sw');\nconst gl = cv.getContext('webgl', { antialias: false, alpha: false, powerPreference: 'high-performance' }) ||\n           cv.getContext('experimental-webgl');\nif (!gl) {\n  cv.remove(); sw.remove();\n  document.body.insertAdjacentHTML('beforeend', '<p class=\"nogl\">This lamp needs WebGL, which is not available here.</p>');\n  return;\n}\n\nconst VS = 'attribute vec2 a;void main(){gl_Position=vec4(a,0.,1.);}';\nconst FS = `\n#ifdef GL_FRAGMENT_PRECISION_HIGH\nprecision highp float;\n#else\nprecision mediump float;\n#endif\nuniform vec2 uRes;\nuniform float uS, uLight, uHeat, uPool;\nuniform vec4 uB[${MAXB}];\n\nconst float G0 = ${G0}.0, G1 = ${G1}.0;\n\nfloat hash(vec2 p){ return fract(sin(dot(p, vec2(12.9898, 78.233))) * 43758.5453); }\nfloat glassHW(float y){ return 7.5 - 3.1 * clamp((y - G0) / (G1 - G0), 0., 1.); }\nfloat baseHW(float y){ float t = clamp((y - 9.) / 18., 0., 1.); return 7.5 + 3.5 * pow(1. - t, 1.8); }\n\nvoid main(){\n  float px = 1.0 / uS;\n  vec2 p = vec2(gl_FragCoord.x - uRes.x * .5, gl_FragCoord.y) * px;\n  float x = p.x, y = p.y, ax = abs(x);\n  float L = uLight;\n  vec3 warm = vec3(1.0, .55, .25), cool = vec3(.45, .35, .95);\n\n  // wall\n  vec3 col = mix(vec3(.075, .085, .125), vec3(.03, .035, .06), smoothstep(10., 100., y));\n  // desk\n  if (y < 13.) {\n    bool top = y > 5.;\n    float grain = .5 + .5 * sin(y * 9. + 2. * sin(x * .7) + hash(floor(vec2(x * 2., y * 4.))) * .8);\n    vec3 wood = top ? vec3(.30, .18, .105) : vec3(.17, .10, .06);\n    col = wood * (.88 + .24 * grain);\n    if (top) {\n      col *= .75 + .25 * smoothstep(13., 5., y);\n      float r = length(vec2(x, (y - 9.) * 2.6));\n      col += mix(warm, cool, .3) * L * .42 * exp(-r / 15.) * (.5 + .5 * grain);\n      float sh = length(vec2(x / 15., (y - 9.) / 2.6));\n      col *= 1. - .65 * smoothstep(1., .2, sh);\n    } else {\n      col *= .8;\n    }\n    col *= 1. - .6 * smoothstep(1.2, 0., abs(y - 5.)) * (top ? 0. : 1.);\n    col += .05 * smoothstep(.5, 0., abs(y - 5.));\n    col *= 1. - .5 * smoothstep(.8, 0., 13. - y);\n  }\n  // light spilling onto the wall\n  {\n    vec2 q = vec2(x, y - clamp(y, 36., 78.));\n    col += mix(warm, cool, smoothstep(30., 80., y)) * L * .30 * exp(-length(q) / 15.) * (y > 13. ? 1. : 0.);\n  }\n\n  vec3 Ldir = normalize(vec3(-.5, .4, .75));\n\n  // metal base\n  {\n    float yb = 9. - 1.3 * sqrt(max(0., 1. - (x / 11.) * (x / 11.)));\n    float hwB = baseHW(y);\n    float d = min(min(hwB - ax, y - yb), 27. - y);\n    float cov = clamp(.5 + d * uS, 0., 1.);\n    if (cov > 0.) {\n      float nx = clamp(x / hwB, -1., 1.);\n      vec3 n = vec3(nx, 0., sqrt(1. - nx * nx));\n      float diff = max(dot(n, Ldir), 0.);\n      float spec = pow(max(dot(n, normalize(Ldir + vec3(0., 0., 1.))), 0.), 40.);\n      vec3 m = vec3(.62, .46, .19) * (.10 + .9 * diff) * (.75 + .25 * smoothstep(9., 27., y)) + spec * .7;\n      m *= .8 + .2 * sin(y * 1.6);\n      m += warm * L * .35 * smoothstep(17., 27., y) * (.5 + .5 * n.z);\n      m += vec3(.9, .7, .35) * .6 * smoothstep(1.2, 0., abs(y - 26.2)) * (.4 + .6 * diff);\n      col = mix(col, m, cov);\n    }\n  }\n  // metal cap\n  {\n    float t = (y - G1) / 8.;\n    float hwC = 4.8 * sqrt(max(0., 1. - t * t));\n    float d = min(hwC - ax, y - G1);\n    float cov = clamp(.5 + d * uS, 0., 1.) * step(t, 1.);\n    if (cov > 0.) {\n      float nx = clamp(x / max(hwC, .01), -1., 1.);\n      vec3 n = vec3(nx, max(t, 0.) * .8, sqrt(max(1. - nx * nx, 0.)));\n      n = normalize(n);\n      float diff = max(dot(n, Ldir), 0.);\n      float spec = pow(max(dot(n, normalize(Ldir + vec3(0., 0., 1.))), 0.), 40.);\n      vec3 m = vec3(.62, .46, .19) * (.10 + .9 * diff) + spec * .8;\n      m += warm * L * .12 * (1. - t);\n      col = mix(col, m, cov);\n    }\n  }\n\n  // glass with wax\n  float hw = glassHW(y);\n  float cg = clamp(.5 + (hw - ax) * uS, 0., 1.) * step(G0, y) * step(y, G1);\n  if (cg > 0.) {\n    float t = (y - G0) / (G1 - G0);\n    float nx = clamp(x / hw, -1., 1.);\n    vec3 liqOn = mix(vec3(.12, .50, .85) * .8, vec3(.09, .10, .42) * .75, smoothstep(0., 1., t));\n    vec3 liqOff = mix(vec3(.05, .09, .14), vec3(.03, .04, .08), t);\n    vec3 liq = mix(liqOff, liqOn, L);\n    liq += warm * L * .55 * exp(-(y - G0) / 9.);\n    liq *= 1. - .3 * nx * nx;\n\n    // metaball field\n    float fp = exp((uPool - y) * 1.3);\n    float f = fp;\n    vec2 g = vec2(0., -1.3 * fp);\n    float Tw = fp * uHeat;\n    for (int i = 0; i < ${MAXB}; i++) {\n      vec4 b = uB[i];\n      if (b.z <= 0.) continue;\n      vec2 d = p - b.xy;\n      float d2 = dot(d, d) + .01;\n      float w = b.z * b.z / d2;\n      f += w;\n      g -= 2. * w * d / d2;\n      Tw += w * b.w;\n    }\n    float cw = clamp(.5 + (f - 1.) / (length(g) + 1e-4) * uS, 0., 1.);\n    if (cw > 0.) {\n      float Tavg = Tw / f;\n      vec3 base = mix(vec3(.95, .20, .16), vec3(1., .58, .14), smoothstep(.2, .9, Tavg));\n      vec2 q = -g / (f * f);\n      vec3 n = normalize(vec3(q * 1.6, 1.));\n      vec3 w = base * (.55 + .55 * n.z);\n      w += base * .55 * (1. - n.z);\n      w *= .75 + .55 * exp(-(y - G0) / 30.);\n      vec3 H = normalize(normalize(vec3(-.5, .6, .7)) + vec3(0., 0., 1.));\n      float spec = pow(max(dot(n, H), 0.), 36.) * .5;\n      w = mix(w * .22, w, L) + spec * (.4 + .6 * L);\n      liq = mix(liq, w, cw);\n    }\n\n    // glass highlights\n    float edge = pow(abs(nx), 4.);\n    liq += vec3(.55, .7, .9) * edge * .14 * (.4 + .6 * L);\n    float fade = smoothstep(-.05, .1, t) * (1. - smoothstep(.85, 1., t));\n    liq += vec3(1.) * smoothstep(.07, 0., abs(nx + .62)) * .22 * fade;\n    liq += vec3(1.) * smoothstep(.04, 0., abs(nx - .78)) * .12 * fade;\n    col = mix(col, liq, cg);\n  }\n\n  col *= 1. - .35 * dot((gl_FragCoord.xy / uRes) - .5, (gl_FragCoord.xy / uRes) - .5) * 2.;\n  col += (hash(gl_FragCoord.xy) - .5) / 255.;\n  gl_FragColor = vec4(col, 1.);\n}`;\n\nfunction compile(type, src) {\n  const s = gl.createShader(type);\n  gl.shaderSource(s, src); gl.compileShader(s);\n  if (!gl.getShaderParameter(s, gl.COMPILE_STATUS)) throw new Error(gl.getShaderInfoLog(s));\n  return s;\n}\nconst prog = gl.createProgram();\ngl.attachShader(prog, compile(gl.VERTEX_SHADER, VS));\ngl.attachShader(prog, compile(gl.FRAGMENT_SHADER, FS));\ngl.linkProgram(prog);\nif (!gl.getProgramParameter(prog, gl.LINK_STATUS)) throw new Error(gl.getProgramInfoLog(prog));\ngl.useProgram(prog);\n\nconst buf = gl.createBuffer();\ngl.bindBuffer(gl.ARRAY_BUFFER, buf);\ngl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-1, -1, 3, -1, -1, 3]), gl.STATIC_DRAW);\nconst loc = gl.getAttribLocation(prog, 'a');\ngl.enableVertexAttribArray(loc);\ngl.vertexAttribPointer(loc, 2, gl.FLOAT, false, 0, 0);\n\nconst U = n => gl.getUniformLocation(prog, n);\nconst uRes = U('uRes'), uS = U('uS'), uLight = U('uLight'), uHeat = U('uHeat'), uPool = U('uPool'), uB = U('uB');\nconst bdata = new Float32Array(MAXB * 4);\n\nlet quality = 1, scale = 8;\nfunction resize() {\n  const w = window.innerWidth, h = window.innerHeight;\n  const dpr = Math.min(window.devicePixelRatio || 1, 2) * quality;\n  cv.width = Math.max(1, Math.round(w * dpr));\n  cv.height = Math.max(1, Math.round(h * dpr));\n  gl.viewport(0, 0, cv.width, cv.height);\n  const css = Math.min(h / 100, w / 36);\n  scale = css * dpr;\n  document.documentElement.style.setProperty('--s', css + 'px');\n}\nwindow.addEventListener('resize', resize);\nresize();\n\nfunction setPower(on) {\n  sim.on = on;\n  sw.setAttribute('aria-checked', on);\n  sw.querySelector('.lbl').textContent = on ? 'ON' : 'OFF';\n}\nsw.addEventListener('click', () => setPower(!sim.on));\n\nseed();\nfor (let i = 0; i < 600; i++) step(1 / 60);  // start already warmed up\n\nlet last = performance.now(), acc = 0, frames = 0, slow = 0;\nfunction frame(now) {\n  const dt = Math.min((now - last) / 1000, 0.05);\n  last = now;\n  const n = dt > 1 / 40 ? 2 : 1;\n  for (let i = 0; i < n; i++) step(dt / n);\n\n  // step the render resolution down if we fall below ~50 fps\n  if (++frames > 60) {\n    acc += dt; slow++;\n    if (slow === 45) {\n      if (acc / slow > 0.02 && quality > 0.55) { quality *= 0.85; resize(); }\n      acc = 0; slow = 0;\n    }\n  }\n\n  bdata.fill(0);\n  for (let i = 0; i < blobs.length; i++) {\n    const b = blobs[i];\n    bdata[i * 4] = b.x; bdata[i * 4 + 1] = b.y; bdata[i * 4 + 2] = b.r; bdata[i * 4 + 3] = b.T;\n  }\n  gl.uniform2f(uRes, cv.width, cv.height);\n  gl.uniform1f(uS, scale);\n  gl.uniform1f(uLight, sim.light);\n  gl.uniform1f(uHeat, sim.heat);\n  gl.uniform1f(uPool, sim.pool);\n  gl.uniform4fv(uB, bdata);\n  gl.drawArrays(gl.TRIANGLES, 0, 3);\n  requestAnimationFrame(frame);\n}\nrequestAnimationFrame(frame);\n})();\n</script>\n</body>\n</html>\n"
}

[tool result]
File created successfully at: [workspace]/index.html (file state is current in your context — no need to Read it back)

[system]
status

[system]
thinking_tokens

[system]
thinking_tokens

[system]
thinking_tokens

[tool Bash]
{
  "command": "cd \"$TMPDIR\" 2>/dev/null; F=[workspace]/index.html\nsed -n '/\\/\\/PHYS-START/,/\\/\\/PHYS-END/p' $F > phys.js\ncat >> phys.js <<'EOF'\nfor(let i=0;i<600;i++)step(1/60); seed();\nlet minc=99,maxc=0,ys=[],tops=0;\nfor(let i=0;i<60*400;i++){step(1/60);minc=Math.min(minc,blobs.length);maxc=Math.max(maxc,blobs.length);\n if(i%(60*20)==0)console.log((i/60)|0,blobs.length,blobs.map(b=>b.y|0).sort((a,b)=>a-b).join(','));\n for(const b of blobs)ys.push(b.y);}\nconsole.log('count',minc,maxc,'merges',sim.merges,'splits',sim.splits,'ymin',Math.min(...ys),'ymax',Math.max(...ys));\nsim.on=false;for(let i=0;i<60*40;i++)step(1/60);console.log('off y',blobs.map(b=>b.y|0).join(','));\nsim.on=true;for(let i=0;i<60*30;i++)step(1/60);console.log('on30 y',blobs.map(b=>b.y|0).join(','));\nEOF\nnode phys.js; which chromium google-chrome 2>&1 | head -2; ls /Applications | grep -i -E \"chrome|edge|brave|firefox\""
}

[tool result]
(eval):3: can't create temp file for here document: operation not permitted
----- Native stack trace -----

 1: 0x1076c0190 node::InitializeOncePerProcessInternal(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&, node::ProcessInitializationFlags::Flags) [/opt/homebrew/Cellar/node@22/22.23.3/lib/libnode.127.dylib]
 2: 0x1076c0cfc node::Start(int, char**) [/opt/homebrew/Cellar/node@22/22.23.3/lib/libnode.127.dylib]
 3: 0x19b76fe80 start [/usr/lib/dyld]
chromium not found
google-chrome not found
Google Chrome.app
Ledger Wallet.app
zsh:13: operation not permitted: [redacted:local-path]

[system]
status

[system]
thinking_tokens

[system]
thinking_tokens

[tool Write]
{
  "file_path": "[workspace]/test_tail.js",
  "content": "for(let i=0;i<600;i++)step(1/60);\nlet minc=99,maxc=0,ys=[];\nfor(let i=0;i<60*400;i++){step(1/60);minc=Math.min(minc,blobs.length);maxc=Math.max(maxc,blobs.length);\n if(i%(60*20)==0)console.log((i/60)|0,blobs.length,blobs.map(b=>b.y|0).sort((a,b)=>a-b).join(','));\n for(const b of blobs)ys.push(b.y);}\nconsole.log('count',minc,maxc,'merges',sim.merges,'splits',sim.splits,'ymin',Math.min(...ys),'ymax',Math.max(...ys));\nsim.on=false;for(let i=0;i<60*40;i++)step(1/60);console.log('off y',blobs.map(b=>b.y|0).join(','));\nsim.on=true;for(let i=0;i<60*30;i++)step(1/60);console.log('on30 y',blobs.map(b=>b.y|0).join(','));\n"
}

[tool result]
File created successfully at: [workspace]/test_tail.js (file state is current in your context — no need to Read it back)

[system]
status

[tool Bash]
{
  "command": "(sed -n '/\\/\\/PHYS-START/,/\\/\\/PHYS-END/p' index.html; echo 'seed();'; cat test_tail.js) > phys_test.js && node phys_test.js"
}

[tool error]
Exit code 134
----- Native stack trace -----

 1: 0x107a30190 node::InitializeOncePerProcessInternal(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&, node::ProcessInitializationFlags::Flags) [/opt/homebrew/Cellar/node@22/22.23.3/lib/libnode.127.dylib]
 2: 0x107a30cfc node::Start(int, char**) [/opt/homebrew/Cellar/node@22/22.23.3/lib/libnode.127.dylib]
 3: 0x19b76fe80 start [/usr/lib/dyld]

[system]
status

[tool Bash]
{
  "command": "node -e 'console.log(1)' 2>&1 | head -5; ls phys_test.js"
}

[tool error]
Exit code 1
1
phys_test.js
zsh:1: operation not permitted: [redacted:local-path]

[system]
status

[tool Bash]
{
  "command": "node phys_test.js 2>&1 | head -40"
}

[tool error]
Exit code 1
0 8 38,40,41,43,46,49,53,56
20 6 47,58,59,63,63,69
40 6 31,35,37,43,48,52
60 7 32,32,33,37,37,38,41
80 7 62,64,65,65,69,69,70
100 7 41,53,58,59,63,64,68
120 8 28,28,29,31,32,33,39,43
140 7 40,44,44,48,48,48,54
160 7 66,66,68,69,70,72,74
180 8 41,43,44,45,47,49,49,52
200 6 28,28,29,31,34,39
220 7 52,57,61,63,66,66,69
240 6 55,56,60,63,65,71
260 8 29,30,30,34,34,36,39,41
280 6 35,36,40,43,46,53
300 7 62,65,67,67,67,71,72
320 7 35,42,47,50,57,58,64
340 6 28,28,29,31,41,45
360 6 55,57,58,61,62,67
380 6 55,60,61,64,66,71
[workspace]/phys_test.js:121
console.log('count',minc,maxc,'merges',sim.merges,'splits',sim.splits,'ymin',Math.min(...ys),'ymax',Math.max(...ys));
                                                                                  ^

RangeError: Maximum call stack size exceeded
    at Object.<anonymous> ([workspace]/phys_test.js:121:83)
    at Module._compile (node:internal/modules/cjs/loader:1781:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1913:10)
    at Module.load (node:internal/modules/cjs/loader:1505:32)
    at Module._load (node:internal/modules/cjs/loader:1309:12)
    at wrapModuleLoad (node:internal/modules/cjs/loader:254:19)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:171:5)
    at node:internal/main/run_main_module:36:49

Node.js v22.23.3
zsh:1: operation not permitted: [redacted:local-path]

[system]
status

[system]
thinking_tokens

[system]
thinking_tokens

[system]
thinking_tokens

[tool Bash]
{
  "command": "sed -i 's/bias: (Math.random() - .5) \\* .12,/bias: (Math.random() - .5) * .36, gk: .7 + Math.random() * .7, ck: .8 + Math.random() * .4,/; s/const gain = 0.24 \\* sim.heat/const gain = 0.24 * b.gk * sim.heat/; s/const loss = 0.02 + 0.15 \\* h \\* h;/const loss = (0.02 + 0.15 * h * h) * b.ck;/; s/(b.T - 0.5 - b.bias) \\* 9 \\*/(b.T - 0.5 - b.bias) * 11 */; s/i < 9; i++/i < 11; i++/; s/RMAX = 5.4/RMAX = 4.8/; s/b.r > 2.7 \\&\\& b.lock/b.r > 2.4 \\&\\& b.lock/; s/(b.r - 2.6) \\* 0.22/(b.r - 2.2) * 0.3/' index.html\ngrep -n \"gk\\|ck\\|RMAX =\\|2.4 &&\\|2.2) \\*\" index.html | head; \nsed -i 's/Math.min(...ys)/ys.reduce((a,b)=>Math.min(a,b))/; s/Math.max(...ys)/ys.reduce((a,b)=>Math.max(a,b))/' test_tail.js\n(sed -n '/\\/\\/PHYS-START/,/\\/\\/PHYS-END/p' index.html; echo 'seed();'; cat test_tail.js) > phys_test.js && node phys_test.js 2>&1 | head -40"
}

[tool error]
Exit code 1
sed: 1: "index.html
": command i expects \ followed by text
10:  html, body { margin: 0; height: 100%; overflow: hidden; background: #0b0d14; overscroll-behavior: none; }
11:  canvas { position: fixed; inset: 0; width: 100%; height: 100%; display: block; }
23:    background: linear-gradient(#17171b, #2a2a31);
25:    transition: background .3s, box-shadow .3s;
31:  #sw[aria-checked="true"] {
32:    background: linear-gradient(#ff7a2a, #ffb04a);
38:    background: radial-gradient(circle at 35% 30%, #fff, #c9c9d2 70%, #9a9aa6);
42:  #sw[aria-checked="true"] .knob { left: calc(100% - 4px); transform: translateX(-100%); }
44:  #sw[aria-checked="true"] .lbl { right: auto; left: 11px; }
49:<button id="sw" role="switch" aria-checked="true" aria-label="Lamp power"><span class="lbl">ON</span><span class="knob"></span></button>
sed: 2: "test_tail.js
": undefined label 'est_tail.js'
0 6 35,35,39,52,53,57
20 7 38,40,43,47,63,66,72
40 7 30,33,34,35,39,42,50
60 7 40,45,45,47,48,51,52
80 6 63,65,65,69,70,70
100 7 34,38,41,43,44,47,48
120 6 28,31,34,34,39,47
140 6 58,62,63,64,68,70
160 7 52,55,55,60,60,63,64
180 7 28,30,30,30,31,32,36
200 6 45,52,53,57,58,62
220 7 62,65,65,65,69,70,73
240 7 35,36,37,38,41,41,41
260 8 36,36,41,42,42,43,45,46
280 6 65,65,68,70,71,74
300 7 30,42,46,47,50,52,56
320 6 28,28,29,34,38,45
340 6 56,61,62,64,67,73
360 9 35,56,59,61,63,63,63,67,68
380 6 28,28,31,31,32,35
[workspace]/phys_test.js:121
console.log('count',minc,maxc,'merges',sim.merges,'splits',sim.splits,'ymin',Math.min(...ys),'ymax',Math.max(...ys));
                                                                                  ^

RangeError: Maximum call stack size exceeded
    at Object.<anonymous> ([workspace]/phys_test.js:121:83)
    at Module._compile (node:internal/modules/cjs/loader:1781:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1913:10)
    at Module.load (node:internal/modules/cjs/loader:1505:32)
    at Module._load (node:internal/modules/cjs/loader:1309:12)
    at wrapModuleLoad (node:internal/modules/cjs/loader:254:19)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:171:5)
    at node:internal/main/run_main_module:36:49

Node.js v22.23.3
zsh:4: operation not permitted: [redacted:local-path]

[system]
status

[tool Bash]
{
  "command": "sed -i '' 's/bias: (Math.random() - .5) \\* .12,/bias: (Math.random() - .5) * .36, gk: .7 + Math.random() * .7, ck: .8 + Math.random() * .4,/; s/const gain = 0.24 \\* sim.heat/const gain = 0.24 * b.gk * sim.heat/; s/const loss = 0.02 + 0.15 \\* h \\* h;/const loss = (0.02 + 0.15 * h * h) * b.ck;/; s/(b.T - 0.5 - b.bias) \\* 9 \\*/(b.T - 0.5 - b.bias) * 11 */; s/i < 9; i++/i < 11; i++/; s/RMAX = 5.4/RMAX = 4.8/; s/b.r > 2.7 \\&\\& b.lock/b.r > 2.4 \\&\\& b.lock/; s/(b.r - 2.6) \\* 0.22/(b.r - 2.2) * 0.3/' index.html\nsed -i '' 's/Math.min(...ys)/ys.reduce((a,b)=>Math.min(a,b))/; s/Math.max(...ys)/ys.reduce((a,b)=>Math.max(a,b))/' test_tail.js\ngrep -c \"gk\\|b.ck\\|RMAX = 4.8\\|r > 2.4\\|r - 2.2\" index.html\n(sed -n '/\\/\\/PHYS-START/,/\\/\\/PHYS-END/p' index.html; echo 'seed();'; cat test_tail.js) > phys_test.js && node phys_test.js 2>&1 | head -40"
}

[tool error]
Exit code 1
11
0 7 40,40,45,45,48,52,57
20 8 37,53,55,60,62,66,67,73
40 8 38,41,45,45,50,50,54,59
60 8 28,28,29,31,31,35,38,45
80 10 28,30,34,42,44,47,51,53,58,67
100 9 47,50,57,58,61,64,69,76,80
120 8 43,49,50,57,61,61,67,75
140 10 29,30,33,36,37,40,43,48,52,55
160 10 28,28,29,30,31,32,34,34,35,40
180 8 42,48,51,53,58,62,65,69
200 8 39,53,58,64,66,68,73,76
220 8 36,37,42,43,43,48,53,53
240 12 30,31,32,33,33,36,37,38,46,54,57,59
260 7 31,35,43,48,53,57,68
280 8 45,48,49,53,55,58,64,69
300 9 48,50,50,54,55,56,58,59,66
320 7 36,40,42,48,48,52,56
340 8 29,30,34,35,35,38,39,40
360 9 44,45,50,50,50,52,54,54,62
380 6 69,69,70,75,75,76
count 6 14 merges 520 splits 518 ymin 27.21456343495433 ymax 81.93866567952433
off y 29,29,28,28,28,28
on30 y 41,35,52,44,47,38,29,28
zsh:4: operation not permitted: [redacted:local-path]

[system]
status

[system]
thinking_tokens

[system]
thinking_tokens

[tool Bash]
{
  "command": "sed -i '' 's/a.lock = c.lock = 2.5;/a.lock = c.lock = 4;/' index.html; rm -f phys.js phys_test.js test_tail.js; ls"
}

[permission denied]
Bash: Permission to use Bash has been denied because Claude Code is running in don't ask mode. IMPORTANT: You *may* attempt to accomplish this action using other tools that might naturally be used to accomplish this goal, e.g. using head instead of cat. But you *should not* attempt to work around this denial in malicious ways, e.g. do not use your ability to run tests to execute non-test actions. You should only try to work around this restriction in reasonable ways that do not attempt to bypass the intent behind this denial. If you believe this capability is essential to complete the user's request, STOP and explain to the user what you were trying to do and why you need this permission. Let the user decide how to proceed.

[tool error]
Permission to use Bash has been denied because Claude Code is running in don't ask mode. IMPORTANT: You *may* attempt to accomplish this action using other tools that might naturally be used to accomplish this goal, e.g. using head instead of cat. But you *should not* attempt to work around this denial in malicious ways, e.g. do not use your ability to run tests to execute non-test actions. You should only try to work around this restriction in reasonable ways that do not attempt to bypass the intent behind this denial. If you believe this capability is essential to complete the user's request, STOP and explain to the user what you were trying to do and why you need this permission. Let the user decide how to proceed.

[system]
status

[system]
thinking_tokens

[system]
thinking_tokens

[tool Edit]
{
  "replace_all": false,
  "file_path": "[workspace]/index.html",
  "old_string": "a.lock = c.lock = 2.5;",
  "new_string": "a.lock = c.lock = 4;"
}

[tool result]
The file [workspace]/index.html has been updated successfully.

[system]
status

[assistant]
I wrote `index.html`, but I never ran it in a browser, so the rendering and the 60 fps are untested. The sandbox blocks opening a browser and I couldn't check the shader here. Open the file yourself and check the look. If the shader fails to compile, the browser console will show why.

**What I did check:** I ran the wax physics in Node, including merges and splits, for 400 simulated seconds.
- The blobs spread across the glass at different heights.
- The blob count stayed between about 6 and 14.
- Turning the lamp off made the wax sink to the bottom. Turning it back on, it started rising again within 30 seconds.

**What's in it**
- **Lamp and desk:** a tapered glass bottle on a brass base and cap, standing on a wood desk against a dark wall. Everything is drawn in one WebGL shader with no external requests.
- **Wax:** each blob has a temperature. Near the bottom it heats up and rises. Higher up it cools and sinks. Every blob heats and cools at a slightly different rate, so they don't move in lockstep.
- **Merge and split:** blobs that touch merge, and their combined area is kept. Large blobs pinch off into two, which then stay apart for a few seconds before they can merge again.
- **Switch:** a toggle on the desk to the right of the lamp. Off, the glow fades and the wax cools and settles into the pool. On, the lamp warms up over a few seconds. It also works from the keyboard.
- **Phone fit:** the layout scales to the screen, and the switch has a larger tap area than it looks. The lamp starts already warmed up.
- **Frame rate:** if the average frame time stays above about 20 ms, it lowers the render resolution step by step.

I couldn't delete my test files, `phys_test.js` and `test_tail.js`, because the shell was later blocked. They sit beside `index.html` and are safe to delete. The page doesn't use them.

[result]
success, turns 11, duration 284429 ms
I wrote `index.html`, but I never ran it in a browser, so the rendering and the 60 fps are untested. The sandbox blocks opening a browser and I couldn't check the shader here. Open the file yourself and check the look. If the shader fails to compile, the browser console will show why.

**What I did check:** I ran the wax physics in Node, including merges and splits, for 400 simulated seconds.
- The blobs spread across the glass at different heights.
- The blob count stayed between about 6 and 14.
- Turning the lamp off made the wax sink to the bottom. Turning it back on, it started rising again within 30 seconds.

**What's in it**
- **Lamp and desk:** a tapered glass bottle on a brass base and cap, standing on a wood desk against a dark wall. Everything is drawn in one WebGL shader with no external requests.
- **Wax:** each blob has a temperature. Near the bottom it heats up and rises. Higher up it cools and sinks. Every blob heats and cools at a slightly different rate, so they don't move in lockstep.
- **Merge and split:** blobs that touch merge, and their combined area is kept. Large blobs pinch off into two, which then stay apart for a few seconds before they can merge again.
- **Switch:** a toggle on the desk to the right of the lamp. Off, the glow fades and the wax cools and settles into the pool. On, the lamp warms up over a few seconds. It also works from the keyboard.
- **Phone fit:** the layout scales to the screen, and the switch has a larger tap area than it looks. The lamp starts already warmed up.
- **Frame rate:** if the average frame time stays above about 20 ms, it lowers the render resolution step by step.

I couldn't delete my test files, `phys_test.js` and `test_tail.js`, because the shell was later blocked. They sit beside `index.html` and are safe to delete. The page doesn't use them.