[system] init: model claude-sonnet-5-5, Claude Code 2.1.312, permission mode dontAsk [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [assistant] I'll start by checking what's in the working directory and which tools I have for testing, such as Node and a headless browser. [tool Bash] { "command": "ls -la && echo \"--- tools\" && (which node npm python3 chromium google-chrome chrome 2>&1 | head; ls /Applications 2>&1 | head -30)", "description": "List workdir and check for node/browsers" } [tool error] Exit code 1 total 0 drwx------@ 3 [redacted:username] wheel 96 Oct 28 08:07 . drwx------@ 6 [redacted:username] wheel 192 Oct 28 08:01 .. drwxr-xr-x@ 3 [redacted:username] wheel 96 Oct 28 08:07 .claude --- tools /opt/homebrew/opt/node@22/bin/node /opt/homebrew/opt/node@22/bin/npm /usr/bin/python3 chromium not found google-chrome not found chrome not found 1Password.app Blender.app ChatGPT.app Claude.app Clipboard Bridge.app CmdBot.app CmdBrief.app Cursor.app Discord.app GarageBand.app Ghostty.app Google Chrome.app Grok Bot.app Hearth.app iMovie.app iTerm.app Keynote.app Ledger Wallet.app Magnet.app Masterbuilt.app Microsoft Excel.app Microsoft Word.app Numbers.app OBS.app OrbStack.app Pages.app qdigidoc4.app Roblox.app RobloxStudio.app RustDesk.app zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Node and Chrome are available, so I'll build the whole candle simulation now: metaball wax rendered via WebGL shader, physics kept in a DOM-free block for Node testing, and the glass, cap, base and desk done with SVG/CSS. [tool Write] { "file_path": "[workspace]/index.html", "content": "\n\n\n\n\n\nLava Lamp\n\n\n\n
\n
\n
\n
\n
\n
\n \n \n
\n \n
\n\n\n\n\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 [assistant] I left a bug in the GL draw: it uploads the uniform arrays once before packing and once after. Fixing that, then I'll test the simulation headlessly in Node. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " gl.uniform4fv(uA, A); gl.uniform4fv(uB, B);\n gl.uniform1i(uN, sim.pack(A, B));\n gl.uniform4fv(uA, A); gl.uniform4fv(uB, B);", "new_string": " gl.uniform1i(uN, sim.pack(A, B));\n gl.uniform4fv(uA, A); gl.uniform4fv(uB, B);" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Bash] { "command": "mkdir -p \"$TMPDIR/t\" && cd \"$TMPDIR/t\" && cat > simtest.js <<'EOF'\nconst fs = require('fs');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst code = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst api = new Function(code + '; return {createSim, hw, TOP, BOT, SPAN, CAP};')();\nconst { createSim, TOP, BOT, SPAN } = api;\n\nfunction volume(sim){ return sim.blobs.reduce((a,b)=>a+b.v,0); }\nfunction run(seed, label) {\n const sim = createSim(seed);\n const v0 = volume(sim);\n console.log(`\\n== seed ${seed} ${label}: after preroll free=${sim.free} blobs=${sim.blobs.length} vol=${v0.toFixed(0)} spawns=${sim.spawns} merges=${sim.merges} splits=${sim.splits}`);\n const dt = 1/60;\n let nan = false, maxFree = 0, minH = 1, maxH = 0;\n const hist = [];\n const m0 = sim.merges, s0 = sim.splits, sp0 = sim.spawns;\n for (let t = 0; t < 300; t += dt) {\n sim.step(dt);\n for (const b of sim.blobs) if (!isFinite(b.x+b.y+b.v+b.T)) nan = true;\n maxFree = Math.max(maxFree, sim.free);\n for (const b of sim.blobs) if (!b.fixed) { const h=(BOT-b.y)/SPAN; minH=Math.min(minH,h); maxH=Math.max(maxH,h); }\n if (Math.round(t/dt) % 600 === 0) {\n const free = sim.blobs.filter(b=>!b.fixed).map(b => `${((BOT-b.y)/SPAN).toFixed(2)}${b.T>0.5?'^':'v'}r${b.r.toFixed(0)}`);\n hist.push(`t=${t.toFixed(0).padStart(3)} free=${sim.free} [${free.join(' ')}]`);\n }\n }\n console.log(hist.join('\\n'));\n console.log(`300s: merges=${sim.merges-m0} splits=${sim.splits-s0} spawns=${sim.spawns-sp0} maxFree=${maxFree} hRange=${minH.toFixed(2)}..${maxH.toFixed(2)} nan=${nan} volDrift=${(volume(sim)-v0).toFixed(1)}`);\n return sim;\n}\nrun(1, 'on'); run(7, 'on');\n\n// off / on cycle\nlet sim = createSim(3);\nsim.setOn(false);\nfor (let t = 0; t < 60; t += 1/60) { sim.step(1/60);\n if (Math.round(t*60) % 600 === 0) console.log(`off t=${t.toFixed(0)} heat=${sim.heat.toFixed(2)} free=${sim.free} light=${sim.light.toFixed(2)} ` + sim.blobs.filter(b=>!b.fixed).map(b=>((BOT-b.y)/SPAN).toFixed(2)+'/T'+b.T.toFixed(2)).join(' '));\n}\nconsole.log('after 60s off: free=', sim.free, 'heat', sim.heat.toFixed(4));\nsim.setOn(true);\nlet first = null;\nfor (let t = 0; t < 40; t += 1/60) { const sp = sim.spawns; sim.step(1/60); if (sim.spawns > sp && first === null) first = t; }\nconsole.log('on again: first spawn after', first && first.toFixed(1), 's; free after 40s =', sim.free);\nEOF\nnode simtest.js [workspace]/index.html", "description": "Run headless simulation tests in Node" } [tool error] Exit code 134 mkdir: /tmp: Operation not permitted ----- Native stack trace ----- 1: 0x1074b630c node::InitializeOncePerProcessInternal(std::__1::vector, std::__1::allocator>, std::__1::allocator, std::__1::allocator>>> const&, node::ProcessInitializationFlags::Flags) [/opt/homebrew/Cellar/node@22/22.23.4/lib/libnode.127.dylib] 2: 0x1074b6e78 node::Start(int, char**) [/opt/homebrew/Cellar/node@22/22.23.4/lib/libnode.127.dylib] 3: 0x195eebe80 start [/usr/lib/dyld] [system] status [system] thinking_tokens [system] thinking_tokens [assistant] Node failed trying to create `/tmp`, so I'll check what `TMPDIR` is in this sandbox. [tool Bash] { "command": "echo \"TMPDIR=[$TMPDIR]\"; ls -ld \"$TMPDIR\" 2>&1; ls \"$TMPDIR/t\" 2>&1 | head", "description": "Inspect TMPDIR" } [tool error] Exit code 1 TMPDIR=[[redacted:local-path]] ls: [redacted:local-path] Operation not permitted ls: [redacted:local-path] Operation not permitted zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [assistant] `TMPDIR` points at `[redacted:local-path]`, which this sandbox won't let me read. I'll use a scratch directory inside the working directory instead and delete it when I'm done. [tool Bash] { "command": "mkdir -p .scratch && cd .scratch && cat > simtest.js <<'EOF'\nconst fs = require('fs');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst code = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst api = new Function(code + '; return {createSim, hw, TOP, BOT, SPAN, CAP};')();\nconst { createSim, TOP, BOT, SPAN } = api;\n\nfunction volume(sim){ return sim.blobs.reduce((a,b)=>a+b.v,0); }\nfunction run(seed, label) {\n const sim = createSim(seed);\n const v0 = volume(sim);\n console.log(`\\n== seed ${seed} ${label}: after preroll free=${sim.free} blobs=${sim.blobs.length} vol=${v0.toFixed(0)} spawns=${sim.spawns} merges=${sim.merges} splits=${sim.splits}`);\n const dt = 1/60;\n let nan = false, maxFree = 0, minH = 1, maxH = 0;\n const hist = [];\n const m0 = sim.merges, s0 = sim.splits, sp0 = sim.spawns;\n for (let t = 0; t < 300; t += dt) {\n sim.step(dt);\n for (const b of sim.blobs) if (!isFinite(b.x+b.y+b.v+b.T)) nan = true;\n maxFree = Math.max(maxFree, sim.free);\n for (const b of sim.blobs) if (!b.fixed) { const h=(BOT-b.y)/SPAN; minH=Math.min(minH,h); maxH=Math.max(maxH,h); }\n if (Math.round(t/dt) % 600 === 0) {\n const free = sim.blobs.filter(b=>!b.fixed).map(b => `${((BOT-b.y)/SPAN).toFixed(2)}${b.T>0.5?'^':'v'}r${b.r.toFixed(0)}`);\n hist.push(`t=${t.toFixed(0).padStart(3)} free=${sim.free} [${free.join(' ')}]`);\n }\n }\n console.log(hist.join('\\n'));\n console.log(`300s: merges=${sim.merges-m0} splits=${sim.splits-s0} spawns=${sim.spawns-sp0} maxFree=${maxFree} hRange=${minH.toFixed(2)}..${maxH.toFixed(2)} nan=${nan} volDrift=${(volume(sim)-v0).toFixed(1)}`);\n return sim;\n}\nrun(1, 'on'); run(7, 'on');\n\nlet sim = createSim(3);\nsim.setOn(false);\nfor (let t = 0; t < 60; t += 1/60) { sim.step(1/60);\n if (Math.round(t*60) % 600 === 0) console.log(`off t=${t.toFixed(0)} heat=${sim.heat.toFixed(2)} free=${sim.free} light=${sim.light.toFixed(2)} ` + sim.blobs.filter(b=>!b.fixed).map(b=>((BOT-b.y)/SPAN).toFixed(2)+'/T'+b.T.toFixed(2)).join(' '));\n}\nconsole.log('after 60s off: free=', sim.free, 'heat', sim.heat.toFixed(4));\nsim.setOn(true);\nlet first = null;\nfor (let t = 0; t < 40; t += 1/60) { const sp = sim.spawns; sim.step(1/60); if (sim.spawns > sp && first === null) first = t; }\nconsole.log('on again: first spawn after', first && first.toFixed(1), 's; free after 40s =', sim.free);\nEOF\nnode simtest.js ../index.html", "description": "Run headless simulation tests in Node" } [tool error] Exit code 134 (eval):1: can't create temp file for here document: operation not permitted ----- Native stack trace ----- 1: 0x1052ea30c node::InitializeOncePerProcessInternal(std::__1::vector, std::__1::allocator>, std::__1::allocator, std::__1::allocator>>> const&, node::ProcessInitializationFlags::Flags) [/opt/homebrew/Cellar/node@22/22.23.4/lib/libnode.127.dylib] 2: 0x1052eae78 node::Start(int, char**) [/opt/homebrew/Cellar/node@22/22.23.4/lib/libnode.127.dylib] 3: 0x195eebe80 start [/usr/lib/dyld] [system] status [system] thinking_tokens [system] thinking_tokens [assistant] Heredocs need a temp file too, so I'll create files with the Write tool. I'll also check whether Node runs when `TMPDIR` points at the scratch directory. [tool Bash] { "command": "ls -la .scratch; TMPDIR=$PWD/.scratch node -e \"console.log('node ok', process.version)\"", "description": "Check node works with TMPDIR override" } [tool error] Exit code 134 total 0 drwxr-xr-x@ 3 [redacted:username] wheel 96 Oct 28 08:13 . drwx------@ 5 [redacted:username] wheel 160 Oct 28 08:13 .. -rw-r--r--@ 1 [redacted:username] wheel 0 Oct 28 08:13 simtest.js ----- Native stack trace ----- 1: 0x1030ce30c node::InitializeOncePerProcessInternal(std::__1::vector, std::__1::allocator>, std::__1::allocator, std::__1::allocator>>> const&, node::ProcessInitializationFlags::Flags) [/opt/homebrew/Cellar/node@22/22.23.4/lib/libnode.127.dylib] 2: 0x1030cee78 node::Start(int, char**) [/opt/homebrew/Cellar/node@22/22.23.4/lib/libnode.127.dylib] 3: 0x195eebe80 start [/usr/lib/dyld] [system] status [system] thinking_tokens [system] thinking_tokens [tool Bash] { "command": "node --version 2>&1 | head -5; echo \"---\"; /opt/homebrew/opt/node@22/bin/node --jitless -e \"console.log(1)\" 2>&1 | head -5; echo \"---\"; env | grep -i -E \"^(HOME|NODE|TMP|SHELL)\" ", "description": "Diagnose node startup crash" } [tool result] v22.23.4 --- Warning: disabling flag --expose_wasm due to conflicting flags 1 --- NoDefaultCurrentDirectoryInExePath=1 SHELL=/bin/zsh TMPDIR=[redacted:local-path] HOME=[redacted:user-path] TMPPREFIX=[redacted:local-path] zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [assistant] Node only crashes with the JIT on, so `--jitless` gets around it. I'll write the test script with the Write tool. [tool Write] { "file_path": "[workspace]/.scratch/simtest.js", "content": "const fs = require('fs');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst code = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst api = new Function(code + '; return {createSim, hw, TOP, BOT, SPAN, CAP};')();\nconst { createSim, TOP, BOT, SPAN } = api;\nconst DUR = +(process.argv[3] || 300);\n\nfunction volume(sim) { return sim.blobs.reduce((a, b) => a + b.v, 0); }\nfunction run(seed, label) {\n const sim = createSim(seed);\n const v0 = volume(sim);\n console.log(`\\n== seed ${seed} ${label}: after preroll free=${sim.free} blobs=${sim.blobs.length} vol=${v0.toFixed(0)} spawns=${sim.spawns} merges=${sim.merges} splits=${sim.splits}`);\n const dt = 1 / 60;\n let nan = false, maxFree = 0, minH = 1, maxH = 0;\n const hist = [];\n const m0 = sim.merges, s0 = sim.splits, sp0 = sim.spawns;\n for (let i = 0; i < DUR * 60; i++) {\n sim.step(dt);\n for (const b of sim.blobs) if (!isFinite(b.x + b.y + b.v + b.T)) nan = true;\n maxFree = Math.max(maxFree, sim.free);\n for (const b of sim.blobs) if (!b.fixed) { const h = (BOT - b.y) / SPAN; minH = Math.min(minH, h); maxH = Math.max(maxH, h); }\n if (i % 600 === 0) {\n const free = sim.blobs.filter(b => !b.fixed).map(b => `${((BOT - b.y) / SPAN).toFixed(2)}${b.T > 0.5 ? '^' : 'v'}r${b.r.toFixed(0)}`);\n hist.push(`t=${String(i / 60).padStart(3)} free=${sim.free} [${free.join(' ')}]`);\n }\n }\n console.log(hist.join('\\n'));\n console.log(`${DUR}s: merges=${sim.merges - m0} splits=${sim.splits - s0} spawns=${sim.spawns - sp0} maxFree=${maxFree} hRange=${minH.toFixed(2)}..${maxH.toFixed(2)} nan=${nan} volDrift=${(volume(sim) - v0).toFixed(1)}`);\n return sim;\n}\nrun(1, 'on'); run(7, 'on');\n\nlet sim = createSim(3);\nsim.setOn(false);\nfor (let i = 0; i < 60 * 60; i++) {\n sim.step(1 / 60);\n if (i % 600 === 0) console.log(`off t=${i / 60} heat=${sim.heat.toFixed(2)} free=${sim.free} light=${sim.light.toFixed(2)} ` + sim.blobs.filter(b => !b.fixed).map(b => ((BOT - b.y) / SPAN).toFixed(2) + '/T' + b.T.toFixed(2)).join(' '));\n}\nconsole.log('after 60s off: free=', sim.free, 'heat', sim.heat.toFixed(4));\nsim.setOn(true);\nlet first = null;\nfor (let i = 0; i < 40 * 60; i++) { const sp = sim.spawns; sim.step(1 / 60); if (sim.spawns > sp && first === null) first = i / 60; }\nconsole.log('on again: first spawn after', first && first.toFixed(1), 's; free after 40s =', sim.free);\n" } [tool result] File created successfully at: [workspace]/.scratch/simtest.js (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && time node --jitless simtest.js ../index.html 200 2>&1 | grep -v \"Warning: disabling\"", "description": "Run headless simulation tests in Node (jitless)", "timeout": 300000 } [tool result] == seed 1 on: after preroll free=5 blobs=10 vol=9500 spawns=13 merges=15 splits=7 t= 0 free=5 [0.85vr55 0.57^r18 0.36^r13 0.21^r16 0.72^r14] t= 10 free=3 [0.43vr61 0.72^r6 0.73vr15] t= 20 free=2 [0.66vr61 0.22vr15] t= 30 free=3 [0.79vr60 0.24^r15 0.43vr15] t= 40 free=2 [0.34vr61 0.77vr15] t= 50 free=4 [0.03^r28 0.56vr15 0.36vr14 0.09^r12] t= 60 free=5 [0.39vr15 0.34vr14 0.51^r12 0.42^r22 0.06^r11] t= 70 free=6 [0.29vr15 0.91vr20 0.54^r25 0.39^r18 0.80^r15 0.12^r16] t= 80 free=8 [0.72vr4 0.83vr36 0.84^r6 0.44^r19 0.34^r21 0.68^r14 0.14^r16 0.54^r14] t= 90 free=6 [0.81vr42 0.72^r27 0.55^r16 0.41^r18 0.10^r15 0.72^r6] t=100 free=6 [0.49^r57 0.77^r4 0.55^r2 0.42^r8 0.20^r12 0.87vr15] t=110 free=4 [0.80^r59 0.64vr4 0.46^r23 0.40^r2] t=120 free=4 [0.85vr52 0.41^r2 0.64^r6 0.61^r35] t=130 free=3 [0.84vr61 0.43^r2 0.53vr15] t=140 free=3 [0.70vr61 0.44^r2 0.45vr15] t=150 free=3 [0.76vr60 0.45vr17 0.37vr12] t=160 free=5 [0.81vr58 0.50vr18 0.31vr12 0.45vr5 0.37vr14] t=170 free=6 [0.78vr55 0.45vr18 0.30^r12 0.41vr5 0.32vr14 0.52vr17] t=180 free=2 [0.34vr61 0.76vr15] t=190 free=2 [0.54vr61 0.19^r15] 200s: merges=41 splits=26 spawns=12 maxFree=8 hRange=0.01..0.91 nan=false volDrift=0.0 == seed 7 on: after preroll free=4 blobs=9 vol=9500 spawns=12 merges=13 splits=5 t= 0 free=4 [0.85vr54 0.69^r17 0.46^r19 0.55^r17] t= 10 free=2 [0.76vr61 0.61vr12] t= 20 free=2 [0.70vr60 0.45vr15] t= 30 free=3 [0.21vr60 0.41vr2 0.70vr15] t= 40 free=5 [0.12^r4 0.40vr2 0.57vr15 0.26^r3 0.26^r24] t= 50 free=6 [0.19^r2 0.67^r29 0.47^r19 0.29^r21 0.60^r11 0.03^r4] t= 60 free=7 [0.80vr10 0.82^r41 0.52^r18 0.80^r2 0.37^r22 0.65^r13 0.19^r18] t= 70 free=6 [0.61^r52 0.80^r9 0.62^r4 0.39^r16 0.83vr16 0.18^r17] t= 80 free=4 [0.43^r60 0.56^r3 0.45^r4 0.83vr15] t= 90 free=2 [0.57^r61 0.68vr10] t=100 free=2 [0.81vr60 0.48^r15] t=110 free=3 [0.32vr60 0.51^r2 0.77vr15] t=120 free=2 [0.50vr60 0.24^r15] t=130 free=2 [0.68vr59 0.36^r21] t=140 free=3 [0.78vr57 0.37^r17 0.45vr19] t=150 free=4 [0.83vr56 0.44^r3 0.51vr22 0.37^r14] t=160 free=6 [0.78vr54 0.45^r3 0.40vr22 0.41^r6 0.53vr17 0.54vr14] t=170 free=4 [0.77vr51 0.30vr25 0.46vr19 0.47vr15] t=180 free=6 [0.77vr49 0.19^r20 0.40vr18 0.36vr21 0.43vr8 0.46vr13] t=190 free=5 [0.64vr49 0.22^r20 0.19vr24 0.41vr15 0.38vr15] 200s: merges=32 splits=24 spawns=10 maxFree=7 hRange=0.01..0.91 nan=false volDrift=0.0 off t=0 heat=1.00 free=6 light=0.97 0.36/T0.59 0.51/T0.91 0.70/T0.21 0.33/T0.98 0.65/T0.55 0.03/T1.00 off t=10 heat=0.29 free=4 light=0.00 0.34/T0.39 0.43/T0.18 0.64/T0.14 0.56/T0.14 off t=20 heat=0.08 free=3 light=0.00 0.10/T0.14 0.56/T0.02 0.28/T0.02 off t=30 heat=0.02 free=2 light=0.00 0.46/T0.00 0.17/T0.01 off t=40 heat=0.01 free=1 light=0.00 0.36/T0.00 off t=50 heat=0.00 free=1 light=0.00 0.27/T0.00 after 60s off: free= 1 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 5 node --jitless simtest.js ../index.html 200 2>&1 0.37s user 0.02s system 93% cpu 0.415 total grep -v "Warning: disabling" 0.00s user 0.00s system 0% cpu 0.414 total zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Found two issues: a free blob grows too large and monopolizes the wax, and a cold blob sinks way too slowly in the lamp-off test (~4 px/s vs expected ~30). I'll dig into the stuck blob issue first. [tool Write] { "file_path": "[workspace]/.scratch/dbg.js", "content": "const fs = require('fs');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst code = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst { createSim, BOT, SPAN } = new Function(code + '; return {createSim, BOT, SPAN};')();\nconst sim = createSim(3);\nsim.setOn(false);\nfor (let i = 0; i < 60 * 45; i++) {\n sim.step(1 / 60);\n if (i % 300 === 0 && i > 60 * 20) {\n for (const b of sim.blobs) if (!b.fixed) console.log(`t=${i / 60} id=${b.id} y=${b.y.toFixed(1)} vy=${b.vy.toFixed(2)} vx=${b.vx.toFixed(2)} r=${b.r.toFixed(1)} T=${b.T.toFixed(3)} st=${b.st.toFixed(2)} from=${!!b.from}`);\n }\n}\n" } [tool result] File created successfully at: [workspace]/.scratch/dbg.js (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless dbg.js ../index.html 2>&1 | grep -v \"Warning: disabling\"", "description": "Debug the slow-sinking blob" } [tool result] t=25 id=21 y=302.7 vy=4.01 vx=0.03 r=2.4 T=0.006 st=1.04 from=false t=25 id=23 y=420.8 vy=4.56 vx=-1.12 r=2.2 T=0.011 st=1.05 from=false t=30 id=21 y=322.8 vy=4.03 vx=-0.60 r=2.4 T=0.003 st=1.04 from=false t=30 id=23 y=443.7 vy=4.61 vx=-1.14 r=2.2 T=0.006 st=1.05 from=false t=35 id=21 y=343.0 vy=4.05 vx=0.61 r=2.4 T=0.001 st=1.04 from=false t=40 id=21 y=363.2 vy=4.05 vx=0.44 r=2.4 T=0.001 st=1.04 from=false zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Found the bug: the feed step cuts off when `p.v - 250` goes negative, leaving small buds stuck at 6 units. I'll fix that, add a volume cap for merged blobs, and add a fallback to return a bud's volume to its parent if feed cuts off while it's still tiny. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " if (p.dead || c.left <= 0.5 || p.v < 300 || Math.hypot(c.x - p.x, c.y - p.y) > (p.r + c.r) * 1.3) { c.from = null; continue; }\n const amt = Math.min(c.left, 280 * dt, p.v - 250);\n p.v -= amt; c.v += amt; c.left -= amt;\n }", "new_string": " if (p.dead || c.left <= 0.5 || Math.hypot(c.x - p.x, c.y - p.y) > (p.r + c.r) * 1.3) {\n c.from = null;\n if (c.v < 80 && !p.dead) { p.v += c.v; c.v = 0; c.dead = true; } // never leave a speck behind\n continue;\n }\n const amt = Math.min(c.left, 280 * dt);\n p.v -= amt; c.v += amt; c.left -= amt;\n }" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const kin = (a.kin === b.id && time < a.kinUntil) || (b.kin === a.id && time < b.kinUntil);\n if (kin || d >= rr * 0.9) {\n if (kin && d < rr * 0.95) {\n const push = (rr * 0.95 - d) * 6 * dt / d;\n if (!a.fixed) { a.vx -= dx * push; a.vy -= dy * push; }\n if (!b.fixed) { b.vx += dx * push; b.vy += dy * push; }\n }\n continue;\n }\n const big = (a.fixed || (!b.fixed && a.v >= b.v)) ? a : b, small = big === a ? b : a;\n const ov", "new_string": " const big = (a.fixed || (!b.fixed && a.v >= b.v)) ? a : b, small = big === a ? b : a;\n const kin = (a.kin === b.id && time < a.kinUntil) || (b.kin === a.id && time < b.kinUntil);\n const bump = kin || (!big.fixed && big.v + small.v > VMAX); // too big to fit the neck\n if (bump || d >= rr * 0.9) {\n if (bump && d < rr * 0.95) {\n const push = (rr * 0.95 - d) * 6 * dt / d;\n if (!a.fixed) { a.vx -= dx * push; a.vy -= dy * push; }\n if (!b.fixed) { b.vx += dx * push; b.vy += dy * push; }\n }\n continue;\n }\n const ov" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "const NRES = 5, MAXFREE = 9, CAP = 16;", "new_string": "const NRES = 5, MAXFREE = 9, CAP = 16, VMAX = 1000; // VMAX: biggest free blob (r ~ 32)" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 200 2>&1 | grep -v \"Warning: disabling\"", "description": "Re-run simulation tests after fixes", "timeout": 300000 } [tool result] == seed 1 on: after preroll free=7 blobs=12 vol=9500 spawns=11 merges=14 splits=10 t= 0 free=7 [0.63^r23 0.74vr29 0.55^r30 0.53^r25 0.65vr20 0.20^r13 0.71vr9] t= 10 free=7 [0.64vr22 0.77vr30 0.56^r29 0.72^r20 0.45vr29 0.24^r18 0.77vr3] t= 20 free=6 [0.63vr31 0.77vr27 0.64^r24 0.84vr20 0.52^r30 0.44^r16] t= 30 free=6 [0.48^r31 0.74vr26 0.80vr28 0.61^r29 0.48^r18 0.58vr16] t= 40 free=10 [0.48^r27 0.59vr25 0.77vr24 0.71^r25 0.43vr23 0.50vr2 0.34^r16 0.63vr16 0.86vr14 0.62vr9] t= 50 free=7 [0.45vr31 0.75vr28 0.58vr29 0.45^r20 0.28^r16 0.65vr16 0.34^r19] t= 60 free=8 [0.26vr27 0.64vr31 0.49vr31 0.41^r23 0.62vr8 0.76vr15 0.27^r15 0.46vr11] t= 70 free=10 [0.14^r22 0.65vr31 0.52vr25 0.43^r30 0.57vr6 0.75vr15 0.36^r2 0.42^r19 0.28^r15 0.65vr4] t= 80 free=6 [0.27^r31 0.58vr30 0.46vr30 0.52^r26 0.74vr19 0.42vr10] t= 90 free=10 [0.23^r27 0.50vr27 0.40^r29 0.36^r21 0.74vr19 0.35^r11 0.69vr3 0.62vr15 0.52^r15 0.57vr12] t=100 free=9 [0.34^r28 0.52vr28 0.41^r25 0.48^r14 0.61vr27 0.22^r17 0.72vr14 0.36^r9 0.29^r11] t=110 free=9 [0.39^r30 0.60vr24 0.32^r27 0.77vr28 0.32^r2 0.60vr20 0.22^r15 0.39^r5 0.46vr16] t=120 free=10 [0.49^r27 0.57vr19 0.41^r29 0.82vr23 0.60vr20 0.44vr8 0.37^r14 0.68vr20 0.68vr4 0.24^r15] t=130 free=9 [0.60vr30 0.49vr24 0.38^r30 0.68vr25 0.40^r14 0.28^r15 0.49^r6 0.82vr14 0.62vr13] t=140 free=8 [0.74vr30 0.48vr26 0.45^r25 0.56vr23 0.40^r21 0.27^r16 0.72vr15 0.58vr13] t=150 free=8 [0.59vr27 0.45^r25 0.52vr26 0.39^r22 0.66vr23 0.80vr15 0.26^r21 0.49^r10] t=160 free=9 [0.49vr27 0.38^r23 0.45vr24 0.34^r30 0.58vr18 0.75vr15 0.70vr15 0.68vr15 0.51vr12] t=170 free=9 [0.56vr26 0.29^r8 0.38^r25 0.50vr29 0.66vr10 0.66vr24 0.27^r24 0.74vr13 0.41vr15] t=180 free=8 [0.49vr21 0.41^r26 0.58vr29 0.77vr25 0.33^r23 0.24^r16 0.59vr15 0.65vr15] t=190 free=8 [0.56vr28 0.35^r26 0.68vr26 0.79vr25 0.22^r24 0.29^r3 0.51^r17 0.34vr15] 200s: merges=86 splits=86 spawns=1 maxFree=13 hRange=0.02..0.88 nan=false volDrift=0.0 == seed 7 on: after preroll free=7 blobs=12 vol=9500 spawns=12 merges=12 splits=7 t= 0 free=7 [0.71vr30 0.87vr24 0.82^r26 0.57^r29 0.61^r5 0.60^r20 0.05^r13] t= 10 free=10 [0.62vr29 0.72vr21 0.86vr21 0.61^r28 0.51^r27 0.54^r10 0.73vr10 0.82vr17 0.64^r7 0.59^r8] t= 20 free=9 [0.49vr28 0.63vr29 0.75vr24 0.62^r25 0.40^r24 0.62^r7 0.44vr12 0.78^r10 0.56^r13] t= 30 free=10 [0.25vr23 0.58vr26 0.78vr21 0.69^r29 0.53^r8 0.40vr25 0.60vr10 0.37^r15 0.47vr14 0.19vr12] t= 40 free=9 [0.13^r25 0.52vr29 0.63vr21 0.63^r25 0.40vr28 0.26^r5 0.30^r15 0.76vr15 0.39vr7] t= 50 free=6 [0.26^r25 0.54vr30 0.61vr25 0.41vr30 0.30^r23 0.79vr16] t= 60 free=9 [0.26^r4 0.50vr22 0.85vr25 0.28vr21 0.26^r31 0.39^r21 0.57vr20 0.65vr15 0.41vr15] t= 70 free=11 [0.54vr19 0.73vr25 0.29^r24 0.39^r27 0.44^r23 0.61vr25 0.60vr6 0.25^r3 0.59^r2 0.49vr12 0.18^r16] t= 80 free=9 [0.52vr19 0.72vr21 0.30^r28 0.42^r27 0.54^r21 0.62vr29 0.28^r5 0.44^r15 0.63vr7] t= 90 free=7 [0.61vr22 0.20^r25 0.50^r25 0.48^r19 0.59vr29 0.39^r26 0.73vr16] t=100 free=6 [0.50vr30 0.18^r20 0.52vr30 0.28^r26 0.63vr27 0.43^r15] t=110 free=9 [0.59vr26 0.34^r21 0.46vr27 0.44^r27 0.71vr22 0.57vr22 0.26^r4 0.21^r16 0.42vr3] t=120 free=12 [0.50vr25 0.44^r4 0.34^r26 0.38^r27 0.73vr18 0.48vr25 0.30^r18 0.31^r4 0.58vr4 0.55vr4 0.65vr17 0.62vr16] t=130 free=8 [0.47vr21 0.39^r24 0.39^r28 0.50vr25 0.60vr24 0.29^r21 0.73vr17 0.56vr14] t=140 free=9 [0.43^r26 0.45^r29 0.61vr20 0.60vr28 0.36^r19 0.70vr17 0.24^r18 0.47^r9 0.49^r9] t=150 free=9 [0.32^r27 0.39^r19 0.68vr21 0.71vr29 0.21^r21 0.48^r26 0.50^r11 0.55vr13 0.32^r5] t=160 free=9 [0.25^r32 0.59vr16 0.80vr25 0.34^r28 0.55vr21 0.40^r17 0.73vr13 0.67vr15 0.55^r4] t=170 free=9 [0.38^r28 0.63vr29 0.39^r25 0.48vr29 0.43^r9 0.20^r15 0.82vr15 0.65vr8 0.30^r13] t=180 free=9 [0.46^r30 0.75vr27 0.46^r4 0.53vr30 0.76vr10 0.21^r24 0.36^r19 0.36^r6 0.61vr16] t=190 free=8 [0.59^r26 0.69vr23 0.54vr30 0.18^r19 0.35^r30 0.36^r2 0.82vr17 0.45^r15] 200s: merges=88 splits=87 spawns=0 maxFree=13 hRange=0.05..0.88 nan=false volDrift=0.0 off t=0 heat=1.00 free=7 light=0.97 0.79/T0.08 0.65/T0.67 0.64/T0.87 0.45/T0.94 0.80/T0.22 0.63/T0.51 0.72/T0.67 off t=10 heat=0.29 free=3 light=0.00 0.60/T0.14 0.47/T0.43 0.55/T0.25 off t=20 heat=0.08 free=3 light=0.00 0.22/T0.06 0.11/T0.16 0.21/T0.09 off t=30 heat=0.02 free=0 light=0.00 off t=40 heat=0.01 free=0 light=0.00 off t=50 heat=0.00 free=0 light=0.00 after 60s off: free= 0 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 7 zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] I found that merging hot and cold blobs creates neutral-buoyancy blobs that stall mid-lamp, starving the pool and causing excessive churn. I'll replace the weak pull toward neutral with a term that pushes blobs away from it and slow down the split timers. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " // Temperature: heated hard just above the pool, chilled hard under the cap,\n // and only drifting slowly in between, so blobs keep their heat while rising.\n const k = b.cs * Math.min(1.4, Math.max(0.6, 20 / b.r)); // big blobs hold heat longer\n const dT = 0.5 * ss(0.2, 0.07, h) * (heat - b.T)\n - 0.42 * ss(0.78, 0.94, h) * b.T\n + 0.02 * (heat * (1 - h) - b.T)\n - 0.16 * (1 - heat) * b.T; // lamp off: whole liquid cools", "new_string": " // Temperature: heated hard just above the pool, chilled hard under the cap.\n // In between, warm wax sits in warm liquid and cold wax in cold, so each blob\n // keeps its state instead of settling at neutral buoyancy and hovering.\n const k = b.cs * Math.min(1.4, Math.max(0.6, 20 / b.r)); // big blobs hold heat longer\n const dT = 0.5 * ss(0.2, 0.07, h) * (heat - b.T)\n - 0.42 * ss(0.78, 0.94, h) * b.T\n + 0.1 * (b.T - 0.5) * heat\n - 0.16 * (1 - heat) * b.T; // lamp off: whole liquid cools" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " if (b.r >= 20.5 && heat > 0.5 && free < MAXFREE && h > 0.22 && h < 0.82 && !b.from) {\n split(b); b.split = time + range(7, 16);\n } else b.split = time + 1.5;", "new_string": " if (b.r >= 22 && heat > 0.5 && free < MAXFREE && h > 0.22 && h < 0.82 && !b.from) {\n split(b); b.split = time + range(10, 24);\n } else b.split = time + 1.5;" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/.scratch/simtest.js", "old_string": " let nan = false, maxFree = 0, minH = 1, maxH = 0;\n const hist = [];", "new_string": " let nan = false, maxFree = 0, minH = 1, maxH = 0, freeSum = 0, tiny = 0, vmax = 0;\n const bins = new Array(10).fill(0);\n const hist = [];" } [tool result] The file [workspace]/.scratch/simtest.js has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/.scratch/simtest.js", "old_string": " maxFree = Math.max(maxFree, sim.free);\n for (const b of sim.blobs) if (!b.fixed) { const h = (BOT - b.y) / SPAN; minH = Math.min(minH, h); maxH = Math.max(maxH, h); }", "new_string": " maxFree = Math.max(maxFree, sim.free); freeSum += sim.free;\n for (const b of sim.blobs) if (!b.fixed) { const h = (BOT - b.y) / SPAN; minH = Math.min(minH, h); maxH = Math.max(maxH, h); bins[Math.min(9, Math.floor(h * 10))]++; if (b.v < 80 && !b.from) tiny++; vmax = Math.max(vmax, b.v); }" } [tool result] The file [workspace]/.scratch/simtest.js has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/.scratch/simtest.js", "old_string": " console.log(`${DUR}s: merges=", "new_string": " const tot = bins.reduce((a, b) => a + b, 0);\n console.log(`avgFree=${(freeSum / (DUR * 60)).toFixed(1)} tinyFrames=${tiny} vmax=${vmax.toFixed(0)} heightHist(bottom->top)=${bins.map(x => Math.round(100 * x / tot)).join(',')}`);\n console.log(`${DUR}s: merges=" } [tool result] The file [workspace]/.scratch/simtest.js has been updated successfully. (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 200 2>&1 | grep -v \"Warning: disabling\" | grep -v \"^t=\" ", "description": "Re-run simulation tests, summary only", "timeout": 300000 } [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 [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] That command was denied, likely due to the extra grep stage I added. I'll rerun it in the simpler form without that filter—output will be longer but the content should be the same. [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 200 2>&1 | grep -v \"Warning: disabling\"", "description": "Re-run simulation tests after temperature change", "timeout": 300000 } [tool result] == seed 1 on: after preroll free=8 blobs=13 vol=9500 spawns=12 merges=11 splits=7 t= 0 free=8 [0.91vr27 0.94vr26 0.80^r28 0.84^r25 0.56^r19 0.45^r18 0.71^r18 0.83^r2] t= 10 free=6 [0.91vr27 0.94vr26 0.80^r24 0.83vr28 0.71^r27 0.72^r17] t= 20 free=7 [0.86vr27 0.93vr26 0.73^r29 0.83vr27 0.67^r23 0.75^r12 0.77vr11] t= 30 free=7 [0.86vr27 0.92vr26 0.75^r29 0.67vr24 0.64^r26 0.78^r6 0.55^r18] t= 40 free=7 [0.79vr23 0.88vr26 0.76^r30 0.28vr26 0.67^r29 0.71^r2 0.46vr15] t= 50 free=7 [0.70vr30 0.83vr26 0.89vr22 0.15^r11 0.74^r24 0.10^r15 0.66^r17] t= 60 free=9 [0.59vr26 0.59vr21 0.82vr27 0.73^r27 0.42^r19 0.32^r15 0.43vr5 0.53^r13 0.79^r11] t= 70 free=6 [0.50vr29 0.23vr21 0.63vr28 0.85^r29 0.55^r25 0.08^r15] t= 80 free=6 [0.24vr29 0.17^r27 0.28vr23 0.94vr29 0.83^r25 0.42vr15] t= 90 free=7 [0.48^r26 0.10vr28 0.93vr29 0.82^r20 0.29^r23 0.25^r3 0.76^r15] t=100 free=7 [0.83^r26 0.27^r20 0.91vr30 0.79^r24 0.72^r23 0.85vr2 0.36^r15] t=110 free=8 [0.84vr25 0.60^r20 0.93vr30 0.74^r29 0.49^r4 0.83vr16 0.75^r18 0.46^r14] t=120 free=7 [0.81vr30 0.64^r25 0.92vr30 0.79^r25 0.78vr8 0.22^r18 0.68^r20] t=130 free=8 [0.58vr29 0.72^r31 0.93vr30 0.83vr29 0.62^r16 0.84^r6 0.69vr4 0.63^r3] t=140 free=6 [0.23vr25 0.67^r32 0.87vr30 0.72^r27 0.82vr20 0.43vr15] t=150 free=8 [0.16^r28 0.68^r25 0.78vr27 0.56^r27 0.66vr20 0.16vr7 0.72vr4 0.58^r22] t=160 free=8 [0.48^r30 0.75^r29 0.68vr21 0.62^r29 0.37vr19 0.82vr17 0.28^r15 0.75^r2] t=170 free=7 [0.67^r30 0.94vr29 0.52vr21 0.81^r29 0.10^r16 0.62vr17 0.53^r15] t=180 free=9 [0.83^r26 0.94vr29 0.29vr21 0.80^r30 0.43^r5 0.40vr22 0.76^r7 0.83vr9 0.71^r15] t=190 free=7 [0.84^r30 0.94vr29 0.12^r21 0.71^r31 0.23vr19 0.70vr8 0.41vr13] avgFree=7.1 tinyFrames=7662 vmax=994 heightHist(bottom->top)=2,6,7,4,7,8,16,21,19,10 200s: merges=46 splits=39 spawns=7 maxFree=10 hRange=0.01..0.94 nan=false volDrift=0.0 == seed 7 on: after preroll free=8 blobs=13 vol=9500 spawns=11 merges=8 splits=5 t= 0 free=8 [0.26vr31 0.48vr25 0.76vr26 0.85^r18 0.74^r20 0.42^r3 0.17^r14 0.35vr19] t= 10 free=8 [0.12^r6 0.12vr25 0.42vr21 0.78vr25 0.09^r16 0.21vr16 0.15^r16 0.76vr8] t= 20 free=6 [0.24vr29 0.42vr22 0.37^r24 0.47^r22 0.28^r16 0.05^r12] t= 30 free=8 [0.15^r29 0.25^r26 0.74^r24 0.77^r22 0.57^r5 0.26^r7 0.14^r19 0.34vr20] t= 40 free=8 [0.48^r24 0.30^r27 0.84vr24 0.74vr22 0.82^r4 0.42^r22 0.58^r16 0.30^r16] t= 50 free=7 [0.84^r24 0.40^r27 0.60vr26 0.53vr30 0.51^r22 0.63^r3 0.22^r17] t= 60 free=8 [0.80vr20 0.63vr26 0.30vr30 0.55^r27 0.50^r21 0.52^r5 0.72^r20 0.68vr7] t= 70 free=6 [0.86vr28 0.71vr30 0.13^r30 0.79^r27 0.62^r17 0.30^r18] t= 80 free=7 [0.92vr28 0.70vr28 0.52^r26 0.82^r30 0.61^r18 0.36^r15 0.69^r15] t= 90 free=7 [0.83vr28 0.70vr28 0.61^r30 0.94vr26 0.86^r23 0.78^r16 0.70vr3] t=100 free=6 [0.38vr31 0.74^r24 0.92vr26 0.84vr28 0.23vr19 0.69^r25] t=110 free=7 [0.25vr27 0.50^r31 0.62vr28 0.58vr24 0.14^r24 0.60vr4 0.71vr16] t=120 free=8 [0.09vr23 0.54^r24 0.60vr28 0.26vr21 0.32^r20 0.38vr11 0.43^r26 0.11vr9] t=130 free=8 [0.88^r24 0.59vr24 0.16^r6 0.58^r24 0.14^r12 0.78^r22 0.52^r2 0.47^r16] t=140 free=7 [0.89vr27 0.45vr30 0.77^r20 0.85vr22 0.61^r2 0.35^r23 0.91vr5] t=150 free=9 [0.69vr27 0.47vr26 0.62^r29 0.47^r17 0.70vr10 0.29^r20 0.78vr17 0.61^r14 0.27vr8] t=160 free=9 [0.48vr25 0.29vr29 0.90^r27 0.22^r17 0.60vr17 0.87vr5 0.69^r15 0.38vr20 0.37^r14] t=170 free=7 [0.22vr30 0.08^r9 0.80vr31 0.33vr17 0.72vr3 0.19vr19 0.09^r14] t=180 free=8 [0.24vr31 0.65vr27 0.16vr3 0.16^r19 0.44^r27 0.45vr6 0.31^r20 0.53^r13] t=190 free=8 [0.21^r20 0.49vr26 0.41^r19 0.67^r26 0.56^r25 0.25vr5 0.53^r2 0.61vr17] avgFree=7.5 tinyFrames=12621 vmax=988 heightHist(bottom->top)=3,10,12,10,13,13,14,12,10,4 200s: merges=59 splits=45 spawns=13 maxFree=10 hRange=0.00..0.95 nan=false volDrift=0.0 off t=0 heat=1.00 free=8 light=0.97 0.90/T0.00 0.79/T1.00 0.91/T0.43 0.70/T0.28 0.74/T1.00 0.70/T1.00 0.50/T1.00 0.85/T0.98 off t=10 heat=0.29 free=4 light=0.00 0.62/T0.00 0.83/T0.46 0.77/T0.00 0.50/T0.24 off t=20 heat=0.08 free=4 light=0.00 0.13/T0.01 0.60/T0.13 0.18/T0.00 0.01/T0.07 off t=30 heat=0.02 free=1 light=0.00 0.16/T0.03 off t=40 heat=0.01 free=0 light=0.00 off t=50 heat=0.00 free=0 light=0.00 after 60s off: free= 0 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 8 zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Blobs now rise fully and settle correctly when the lamp is off, but there are still too many free blobs, lingering tiny specks that fail to fully merge, and overly busy merge/split behavior. Next I'll make merges commit to completion, reduce blob counts, and give the pool more volume. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const bump = kin || (!big.fixed && big.v + small.v > VMAX); // too big to fit the neck\n if (bump || d >= rr * 0.9) {\n if (bump && d < rr * 0.95) {\n const push = (rr * 0.95 - d) * 6 * dt / d;\n if (!a.fixed) { a.vx -= dx * push; a.vy -= dy * push; }\n if (!b.fixed) { b.vx += dx * push; b.vy += dy * push; }\n }\n continue;\n }\n const ov = Math.min(1, (rr * 0.9 - d) / (rr * 0.4));", "new_string": " const merging = small.into === big; // a merge, once begun, runs to the end\n const bump = !merging && (kin || (!big.fixed && big.v + small.v > VMAX)); // too big to fit the neck\n if (bump || (!merging && d >= rr * 0.9)) {\n if (bump && d < rr * 0.95) {\n const push = (rr * 0.95 - d) * 6 * dt / d;\n if (!a.fixed) { a.vx -= dx * push; a.vy -= dy * push; }\n if (!b.fixed) { b.vx += dx * push; b.vy += dy * push; }\n }\n continue;\n }\n small.into = big;\n const ov = merging ? 1 : Math.min(1, (rr * 0.9 - d) / (rr * 0.4));" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const dx = b.x - a.x, dy = b.y - a.y, d = Math.hypot(dx, dy) || 1e-3, rr = a.r + b.r;\n if (d > rr) continue;", "new_string": " const dx = b.x - a.x, dy = b.y - a.y, d = Math.hypot(dx, dy) || 1e-3, rr = a.r + b.r;\n if (d > rr * 1.4) { if (a.into === b) a.into = null; if (b.into === a) b.into = null; continue; }\n if (d > rr && a.into !== b && b.into !== a) continue;" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " kin: 0, kinUntil: 0, from: null, left: 0, split: time + range(6, 16)", "new_string": " kin: 0, kinUntil: 0, from: null, left: 0, into: null, split: time + range(6, 16)" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "const NRES = 5, MAXFREE = 9, CAP = 16, VMAX = 1000; // VMAX: biggest free blob (r ~ 32)", "new_string": "const NRES = 5, MAXFREE = 8, CAP = 16, VMAX = 1000; // VMAX: biggest free blob (r ~ 32)" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " for (let k = 0; k < NRES; k++) add(CX + (k - (NRES - 1) / 2) * 42, BOT + 12, 1900, 1, true);", "new_string": " for (let k = 0; k < NRES; k++) add(CX + (k - (NRES - 1) / 2) * 42, BOT + 12, 2200, 1, true);" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " for (const b of blobs) if (b.fixed && b.T > 0.72 && b.v > 1250 && rnd() < 1 / ++n) pick = b;\n if (!pick) return false;\n const target = Math.max(200, Math.min(range(0.12, 0.26) * pick.v, pick.v - 1000));", "new_string": " for (const b of blobs) if (b.fixed && b.T > 0.72 && b.v > 1400 && rnd() < 1 / ++n) pick = b;\n if (!pick) return false;\n const target = Math.max(200, Math.min(range(0.12, 0.24) * pick.v, pick.v - 1100));" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " if (on && time > nextSpawn && free < MAXFREE - 2 && spawn()) nextSpawn = time + range(2.5, 6);", "new_string": " if (on && time > nextSpawn && free < MAXFREE - 3 && spawn()) nextSpawn = time + range(3, 7);" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 200 2>&1 | grep -v \"Warning: disabling\"", "description": "Re-run simulation tests after merge/crowding changes", "timeout": 300000 } [tool result] == seed 1 on: after preroll free=4 blobs=9 vol=11000 spawns=11 merges=11 splits=4 t= 0 free=4 [0.91vr29 0.85^r21 0.80vr16 0.43^r22] t= 10 free=5 [0.50vr27 0.72vr21 0.64^r28 0.47^r17 0.63vr5] t= 20 free=5 [0.09vr22 0.39vr21 0.83^r29 0.84^r6 0.73^r14] t= 30 free=5 [0.82vr29 0.78vr14 0.45^r21 0.12^r17 0.79vr8] t= 40 free=5 [0.69vr27 0.59^r27 0.54^r15 0.17^r3 0.70^r13] t= 50 free=5 [0.31vr26 0.68^r30 0.51^r20 0.56vr15 0.08^r4] t= 60 free=5 [0.88^r30 0.82^r20 0.51^r22 0.84vr3 0.68^r15] t= 70 free=5 [0.92vr30 0.82^r29 0.81^r17 0.63^r21 0.26^r17] t= 80 free=6 [0.93vr30 0.71^r28 0.84^r22 0.67^r17 0.78^r5 0.83vr16] t= 90 free=4 [0.84vr30 0.63^r29 0.73^r32 0.46^r21] t=100 free=6 [0.84vr35 0.71^r27 0.69^r28 0.61^r26 0.59^r12 0.86vr3] t=110 free=6 [0.92vr35 0.84^r25 0.80^r28 0.71^r30 0.29^r21 0.73^r7] t=120 free=5 [0.92vr35 0.83^r28 0.79^r29 0.72^r27 0.69^r21] t=130 free=5 [0.92vr35 0.82vr28 0.79^r29 0.71^r27 0.69^r21] t=140 free=5 [0.92vr35 0.78vr32 0.85^r24 0.66^r27 0.75^r21] t=150 free=5 [0.92vr35 0.75vr32 0.84vr24 0.66^r27 0.76^r21] t=160 free=5 [0.90vr35 0.48vr29 0.78vr29 0.68^r33 0.80^r4] t=170 free=7 [0.89vr35 0.45vr29 0.61^r30 0.76^r29 0.35^r17 0.64^r3 0.78vr15] t=180 free=8 [0.89vr35 0.21vr24 0.64^r30 0.77^r29 0.61^r19 0.57vr2 0.39vr15 0.56^r12] t=190 free=6 [0.86vr35 0.71^r30 0.77^r22 0.12vr15 0.61^r23 0.95vr18] avgFree=5.5 tinyFrames=5947 vmax=1209 heightHist(bottom->top)=3,4,4,4,5,7,19,26,21,8 200s: merges=45 splits=32 spawns=15 maxFree=9 hRange=0.01..0.95 nan=false volDrift=0.0 == seed 7 on: after preroll free=4 blobs=9 vol=11000 spawns=12 merges=10 splits=2 t= 0 free=4 [0.93vr21 0.84^r17 0.75^r14 0.17^r21] t= 10 free=6 [0.80vr27 0.60^r21 0.42^r20 0.61vr6 0.16^r20 0.73^r13] t= 20 free=4 [0.76vr30 0.75^r30 0.66^r20 0.08^r12] t= 30 free=5 [0.93vr30 0.74^r25 0.85^r20 0.28^r22 0.88^r15] t= 40 free=6 [0.93vr30 0.82^r30 0.75^r4 0.83^r24 0.32^r21 0.71^r17] t= 50 free=5 [0.93vr30 0.85vr30 0.76^r30 0.76^r21 0.30^r20] t= 60 free=6 [0.93vr30 0.85vr30 0.81^r27 0.72^r31 0.82^r3 0.74^r4] t= 70 free=5 [0.93vr30 0.84vr30 0.79^r27 0.71^r31 0.61^r21] t= 80 free=5 [0.93vr30 0.86vr30 0.68^r29 0.78^r31 0.77^r19] t= 90 free=5 [0.93vr30 0.82vr30 0.64^r29 0.83^r23 0.72^r28] t=100 free=6 [0.93vr30 0.62vr29 0.64^r26 0.86vr28 0.78^r23 0.69^r13] t=110 free=7 [0.92vr30 0.31vr25 0.81^r24 0.86vr25 0.71^r29 0.13vr15 0.77vr12] t=120 free=5 [0.89vr30 0.83^r24 0.71vr24 0.71^r32 0.36^r15] t=130 free=7 [0.85vr26 0.82^r21 0.28vr23 0.71^r32 0.49vr16 0.90vr18 0.68vr6] t=140 free=5 [0.69vr26 0.79vr28 0.67^r32 0.16vr6 0.21^r30] t=150 free=6 [0.26vr26 0.66vr27 0.82^r29 0.56^r31 0.53vr4 0.39vr15] t=160 free=5 [0.03^r2 0.40vr27 0.84vr29 0.73^r27 0.53^r15] t=170 free=5 [0.29vr23 0.42vr25 0.88vr31 0.79^r15 0.36^r26] t=180 free=7 [0.03^r2 0.08vr13 0.67vr30 0.81vr3 0.85^r29 0.73^r7 0.84vr6] t=190 free=5 [0.38vr31 0.56vr26 0.52^r21 0.28^r21 0.70vr15] avgFree=5.4 tinyFrames=5209 vmax=1056 heightHist(bottom->top)=3,4,6,6,5,7,13,24,23,9 200s: merges=45 splits=33 spawns=13 maxFree=8 hRange=0.01..0.94 nan=false volDrift=0.0 off t=0 heat=1.00 free=1 light=0.97 0.13/T1.00 off t=10 heat=0.29 free=0 light=0.00 off t=20 heat=0.08 free=0 light=0.00 off t=30 heat=0.02 free=0 light=0.00 off t=40 heat=0.01 free=0 light=0.00 off t=50 heat=0.00 free=0 light=0.00 after 60s off: free= 0 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 3 zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] One cold blob stays stuck at the ceiling for over 100 seconds instead of sinking at its expected ~25 px/s, so I'll investigate what's pinning it there. [tool Write] { "file_path": "[workspace]/.scratch/dbg.js", "content": "const fs = require('fs');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst code = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst { createSim, BOT, SPAN } = new Function(code + '; return {createSim, BOT, SPAN};')();\nconst sim = createSim(7);\nfor (let i = 0; i < 60 * 70; i++) {\n sim.step(1 / 60);\n if (i % 240 === 0 && i > 60 * 40) {\n for (const b of sim.blobs) if (!b.fixed && (BOT - b.y) / SPAN > 0.85) console.log(`t=${(i / 60).toFixed(0)} id=${b.id} y=${b.y.toFixed(1)} vy=${b.vy.toFixed(2)} vx=${b.vx.toFixed(2)} x=${b.x.toFixed(1)} r=${b.r.toFixed(1)} T=${b.T.toFixed(3)} st=${b.st.toFixed(2)} into=${b.into && b.into.id} kin=${b.kin} bf=${b.bf.toFixed(2)}`);\n }\n}\n" } [tool result] The file [workspace]/.scratch/dbg.js has been updated successfully. (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless dbg.js ../index.html 2>&1 | grep -v \"Warning: disabling\"", "description": "Debug the blob stuck at the ceiling" } [tool result] t=44 id=14 y=123.6 vy=-0.92 vx=0.48 x=187.3 r=29.8 T=0.000 st=1.01 into=null kin=21 bf=0.83 t=48 id=14 y=124.9 vy=0.55 vx=-0.32 x=186.8 r=29.8 T=0.000 st=1.02 into=null kin=21 bf=0.83 t=52 id=14 y=123.5 vy=-0.84 vx=-0.49 x=186.8 r=29.8 T=0.000 st=1.00 into=null kin=21 bf=0.83 t=56 id=14 y=123.7 vy=-1.36 vx=-0.20 x=186.8 r=29.8 T=0.000 st=1.01 into=null kin=21 bf=0.83 t=60 id=14 y=123.6 vy=-0.82 vx=-0.41 x=186.8 r=29.8 T=0.000 st=1.01 into=null kin=21 bf=0.83 t=64 id=14 y=123.4 vy=-0.45 vx=-0.27 x=186.8 r=29.8 T=0.000 st=1.00 into=null kin=21 bf=0.83 t=68 id=14 y=123.4 vy=-0.51 vx=-0.31 x=186.8 r=29.8 T=0.000 st=1.00 into=null kin=21 bf=0.83 zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] I've identified a traffic jam: a cold T=0 blob is stuck at the ceiling because the VMAX rule prevents blobs from merging past each other. I'll raise the merge limit and force oversized blobs to split again quickly, letting them "pass" via merge-then-split instead of jamming. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "const NRES = 5, MAXFREE = 8, CAP = 16, VMAX = 1000; // VMAX: biggest free blob (r ~ 32)", "new_string": "const NRES = 5, MAXFREE = 8, CAP = 16;\nconst VBIG = 1000, VMAX = 2000; // free blobs over VBIG split again soon; none merge past VMAX" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " if (time > b.split) {\n if (b.r >= 22 && heat > 0.5 && free < MAXFREE && h > 0.22 && h < 0.82 && !b.from) {\n split(b); b.split = time + range(10, 24);\n } else b.split = time + 1.5;\n }", "new_string": " if (time > b.split) {\n const big = b.v > VBIG; // oversized blobs may split anywhere\n if (b.r >= 22 && heat > 0.5 && free < CAP - NRES - 1 && !b.from &&\n (big ? h > 0.1 && h < 0.96 : free < MAXFREE && h > 0.22 && h < 0.82)) {\n split(b); b.split = time + range(10, 24);\n } else b.split = time + 1.5;\n }" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " big.T = (big.T * big.v + small.T * amt) / tot;\n big.v = tot; small.v -= amt;", "new_string": " big.T = (big.T * big.v + small.T * amt) / tot;\n big.v = tot; small.v -= amt;\n if (!big.fixed && tot > VBIG) big.split = Math.min(big.split, time + range(1.5, 4));" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 200 2>&1 | grep -v \"Warning: disabling\"", "description": "Re-run simulation tests after jam fix", "timeout": 300000 } [tool result] == seed 1 on: after preroll free=5 blobs=10 vol=11000 spawns=11 merges=16 splits=10 t= 0 free=5 [0.52^r34 0.71vr22 0.42^r15 0.32^r21 0.78^r15] t= 10 free=5 [0.50^r43 0.73vr23 0.83vr15 0.44^r13 0.55vr9] t= 20 free=4 [0.68^r37 0.83vr31 0.49^r16 0.48^r15] t= 30 free=6 [0.79^r32 0.90vr31 0.55^r7 0.55^r33 0.19^r16 0.61^r11] t= 40 free=8 [0.73vr37 0.86vr5 0.49^r38 0.64^r6 0.63^r2 0.91vr3 0.89vr23 0.57^r12] t= 50 free=6 [0.26^r40 0.78vr37 0.32^r4 0.72vr15 0.54^r16 0.32^r10] t= 60 free=6 [0.79vr36 0.47^r15 0.69vr3 0.23^r13 0.90vr16 0.62vr16] t= 70 free=6 [0.85vr26 0.55^r15 0.29^r13 0.52vr16 0.64vr25 0.95vr16] t= 80 free=6 [0.76vr35 0.36^r13 0.45vr16 0.74vr8 0.89vr16 0.49vr15] t= 90 free=6 [0.66vr27 0.40vr21 0.42vr15 0.56vr16 0.94vr15 0.81vr19] t=100 free=7 [0.62vr27 0.36vr21 0.35vr15 0.51vr16 0.90vr15 0.77vr19 0.62vr4] t=110 free=6 [0.47vr28 0.28vr21 0.28vr15 0.86vr15 0.73vr19 0.67vr15] t=120 free=7 [0.32vr23 0.19vr21 0.21vr15 0.80vr9 0.58vr18 0.77vr20 0.52vr15] t=130 free=6 [0.29vr23 0.14^r21 0.15vr15 0.62vr18 0.72vr22 0.46vr15] t=140 free=6 [0.28^r29 0.59vr18 0.67vr22 0.42vr15 0.33vr11 0.10^r15] t=150 free=8 [0.35vr27 0.63vr9 0.63vr26 0.16^r15 0.23vr15 0.56vr2 0.50vr15 0.61vr8] t=160 free=6 [0.34vr27 0.69vr24 0.23^r15 0.21vr15 0.56vr2 0.48vr21] t=170 free=7 [0.45^r27 0.64vr24 0.33^r3 0.15vr15 0.54vr2 0.42vr21 0.23vr15] t=180 free=5 [0.01^r7 0.51vr24 0.67vr15 0.37vr15 0.25vr14] t=190 free=5 [0.62vr10 0.57vr37 0.11^r6 0.32vr15 0.56vr4] avgFree=6.0 tinyFrames=8881 vmax=1994 heightHist(bottom->top)=1,8,11,12,14,16,17,9,9,4 200s: merges=55 splits=50 spawns=6 maxFree=9 hRange=0.01..0.96 nan=false volDrift=-0.0 == seed 7 on: after preroll free=4 blobs=9 vol=11000 spawns=12 merges=10 splits=2 t= 0 free=4 [0.93vr21 0.84^r17 0.75^r14 0.17^r21] t= 10 free=6 [0.80vr27 0.60^r21 0.42^r20 0.61vr6 0.16^r20 0.73^r13] t= 20 free=5 [0.91vr30 0.72^r32 0.40^r22 0.70^r7 0.75vr14] t= 30 free=7 [0.45^r38 0.62^r5 0.45^r12 0.73vr34 0.78vr3 0.65^r15 0.74vr5] t= 40 free=5 [0.13^r34 0.36vr38 0.37vr7 0.54vr16 0.33^r10] t= 50 free=3 [0.09^r16 0.25vr6 0.30^r27] t= 60 free=4 [0.65^r23 0.89^r28 0.70^r12 0.12^r3] t= 70 free=5 [0.57vr34 0.53^r17 0.88vr17 0.80vr15 0.22^r22] t= 80 free=6 [0.42^r39 0.47vr3 0.32^r28 0.65vr19 0.32^r9 0.64^r11] t= 90 free=8 [0.75^r42 0.60^r3 0.33^r15 0.51vr5 0.84vr15 0.79vr16 0.47^r15 0.69^r10] t=100 free=7 [0.84vr32 0.37^r15 0.48vr5 0.69^r30 0.93vr16 0.70^r16 0.55^r16] t=110 free=7 [0.53^r37 0.41vr5 0.91vr16 0.79vr25 0.77^r16 0.40^r16 0.75^r10] t=120 free=6 [0.58^r42 0.34vr5 0.59vr9 0.42^r22 0.91vr17 0.83vr15] t=130 free=7 [0.80vr30 0.26vr5 0.38^r21 0.60^r2 0.52vr32 0.95vr15 0.68vr15] t=140 free=8 [0.93vr27 0.19vr5 0.33^r28 0.55vr16 0.23^r15 0.55^r15 0.66vr15 0.79vr20] t=150 free=8 [0.90vr27 0.16^r5 0.36^r26 0.55^r22 0.25^r15 0.64vr15 0.76vr20 0.32^r9] t=160 free=7 [0.88vr27 0.23^r5 0.44^r35 0.29^r13 0.73vr20 0.61^r15 0.27^r10] t=170 free=7 [0.85vr27 0.70^r38 0.67vr7 0.63^r2 0.25^r15 0.40^r15 0.58^r14] t=180 free=6 [0.88vr31 0.49^r33 0.26^r15 0.69^r5 0.36^r15 0.71^r19] t=190 free=5 [0.86vr31 0.43^r29 0.29^r21 0.73^r19 0.57^r15] avgFree=6.0 tinyFrames=14045 vmax=2000 heightHist(bottom->top)=1,4,10,12,12,16,12,14,12,6 200s: merges=85 splits=76 spawns=11 maxFree=10 hRange=0.01..0.96 nan=false volDrift=-0.0 off t=0 heat=1.00 free=1 light=0.97 0.13/T1.00 off t=10 heat=0.29 free=0 light=0.00 off t=20 heat=0.08 free=0 light=0.00 off t=30 heat=0.02 free=0 light=0.00 off t=40 heat=0.01 free=0 light=0.00 off t=50 heat=0.00 free=0 light=0.00 after 60s off: free= 0 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 3 zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Heights are more even now, but slow-drifting merged blobs near neutral temperature and tiny orphan specks still linger. I'll strengthen the temperature push and have small free droplets dissolve back into the pool to keep volume conserved. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " + 0.1 * (b.T - 0.5) * heat", "new_string": " + 0.22 * (b.T - 0.5) * heat" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " free++;\n const h = (BOT - b.y) / SPAN; // 0 at the floor, 1 at the top", "new_string": " free++;\n if (b.v < 70 && !b.from && !b.into) { // a stray droplet: it dissolves back into the pool\n const dv = Math.min(b.v, 10 * dt + b.v * dt);\n let pool = null;\n for (const p of blobs) if (p.fixed && (!pool || Math.abs(p.x - b.x) < Math.abs(pool.x - b.x))) pool = p;\n b.v -= dv; pool.v += dv;\n if (b.v < 2) { pool.v += b.v; b.v = 0; b.dead = true; }\n }\n const h = (BOT - b.y) / SPAN; // 0 at the floor, 1 at the top" } [tool result] The file [workspace]/index.html has been updated successfully. (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 200 2>&1 | grep -v \"Warning: disabling\" | tail -32", "description": "Re-run simulation tests, tail output", "timeout": 300000 } [tool error] Exit code 1 == seed 7 on: after preroll free=3 blobs=8 vol=11000 spawns=12 merges=7 splits=0 t= 0 free=3 [0.92^r22 0.74^r22 0.36^r21] t= 10 free=6 [0.72vr29 0.87vr3 0.60^r22 0.33^r21 0.86vr19 0.62vr13] t= 20 free=6 [0.67^r32 0.42^r16 0.87vr27 0.52^r9 0.54^r20 0.87vr8] t= 30 free=6 [0.87vr32 0.63^r37 0.74^r9 0.11^r3 0.81^r6 0.60^r8] t= 40 free=6 [0.77vr31 0.54^r30 0.88vr22 0.88vr4 0.19^r21 0.60vr12] t= 50 free=7 [0.33vr29 0.17^r32 0.76vr15 0.62vr17 0.53vr21 0.18vr7 0.52vr11] t= 60 free=8 [0.57vr42 0.62vr14 0.47vr2 0.20^r25 0.43vr4 0.47vr2 0.23vr10 0.40vr16] t= 70 free=6 [0.38vr45 0.38^r9 0.63vr15 0.45vr8 0.16^r25 0.19^r8] t= 80 free=5 [0.51vr15 0.19^r21 0.39vr21 0.34^r26 0.39^r8] t= 90 free=5 [0.40vr2 0.42^r30 0.66^r26 0.81^r15 0.04^r10] t=100 free=5 [0.78^r26 0.89vr30 0.70^r21 0.56^r15 0.28^r21] t=110 free=5 [0.31^r35 0.75^r10 0.74vr34 0.59^r15 0.05^r10] t=120 free=5 [0.54^r35 0.64^r34 0.78vr3 0.82vr18 0.06^r10] t=130 free=5 [0.92^r34 0.54^r30 0.32^r18 0.64^r16 0.81^r20] t=140 free=6 [0.60vr39 0.43^r27 0.92vr17 0.63^r4 0.78vr16 0.51vr11] t=150 free=5 [0.65vr36 0.39^r31 0.73vr5 0.74vr22 0.48vr15] t=160 free=9 [0.43vr30 0.21^r27 0.74vr23 0.58^r20 0.46vr19 0.43^r11 0.19vr15 0.57vr8 0.36vr12] t=170 free=8 [0.90vr33 0.50^r38 0.14^r15 0.39vr5 0.55vr12 0.68vr15 0.26^r16 0.50^r6] t=180 free=6 [0.84vr33 0.51^r39 0.22^r15 0.63^r10 0.33^r16 0.67^r16] t=190 free=8 [0.71vr31 0.43^r38 0.31^r15 0.46^r11 0.95vr16 0.77^r3 0.61^r16 0.80vr13] avgFree=5.8 tinyFrames=11184 vmax=2075 heightHist(bottom->top)=2,7,8,12,13,14,16,13,10,5 200s: merges=92 splits=89 spawns=17 maxFree=9 hRange=0.01..0.96 nan=false volDrift=-0.0 off t=0 heat=1.00 free=1 light=0.97 0.13/T1.00 off t=10 heat=0.29 free=0 light=0.00 off t=20 heat=0.08 free=0 light=0.00 off t=30 heat=0.02 free=0 light=0.00 off t=40 heat=0.01 free=0 light=0.00 off t=50 heat=0.00 free=0 light=0.00 after 60s off: free= 0 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 3 zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] The simulation looks solid now, though I could still reduce some merge/split churn with more tuning. I'll focus on the visuals instead, starting by checking if headless Chrome works in this sandbox so I can grab a screenshot. [tool Bash] { "command": "cd .scratch && CH=\"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome\"; ls -la \"$CH\" | head -2; timeout 60 \"$CH\" --headless=new --no-sandbox --disable-gpu --use-angle=swiftshader --enable-unsafe-swiftshader --js-flags=--jitless --user-data-dir=\"$PWD/prof\" --window-size=390,844 --virtual-time-budget=3000 --screenshot=\"$PWD/shot1.png\" \"file://$PWD/../index.html\" 2>&1 | tail -15; ls -la shot1.png", "description": "Try headless Chrome screenshot of the lamp", "timeout": 90000 } [tool error] Exit code 1 -rwxrwxr-x@ 1 [redacted:username] admin 367696 Oct 28 00:52 /Applications/Google Chrome.app/Contents/MacOS/Google Chrome sandbox_extension_issue_file_to_process failed for /Applications/Google Chrome.app: 1 (Operation not permitted) [1028/081644.066749:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:41] getxattr size org.chromium.crashpad.database.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081644.067777:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:41] getxattr size com.googlecode.crashpad.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081644.067804:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:66] setxattr org.chromium.crashpad.database.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081644.068529:ERROR:third_party/crashpad/crashpad/util/file/file_io.cc:103] ReadExactly: expected 8, observed 0 [1028/081644.070444:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:41] getxattr size org.chromium.crashpad.database.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081644.070817:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:41] getxattr size com.googlecode.crashpad.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081644.070959:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:66] setxattr org.chromium.crashpad.database.initialized on file [redacted:user-path] Operation not permitted (1) [55795:16299504:1028/081644.086869:ERROR:chrome/browser/process_singleton_posix.cc:1046] Failed to create socket directory. [55795:16299504:1028/081644.087894:ERROR:chrome/app/chrome_main_delegate.cc:624] Failed to create a ProcessSingleton for your profile directory. This means that running multiple instances would start multiple browser processes rather than opening a new window in the existing process. Aborting now to avoid profile corruption. ls: shot1.png: No such file or directory [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Chrome's blocked by sandbox restrictions on my real home directory and /tmp, so I'll retry with HOME, TMPDIR, and the profile redirected into the working directory. If that still fails, I'll fall back to Node-only checks instead. [tool Bash] { "command": "cd .scratch && mkdir -p home tmp prof && CH=\"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome\"; HOME=\"$PWD/home\" TMPDIR=\"$PWD/tmp\" timeout 60 \"$CH\" --headless=new --no-sandbox --disable-gpu --use-angle=swiftshader --enable-unsafe-swiftshader --disable-crash-reporter --disable-breakpad --no-first-run --no-default-browser-check --disable-background-networking --js-flags=--jitless --user-data-dir=\"$PWD/prof\" --window-size=390,844 --virtual-time-budget=3000 --screenshot=\"$PWD/shot1.png\" \"file://$PWD/../index.html\" 2>&1 | tail -12; ls -la shot1.png", "description": "Retry headless Chrome with dirs redirected into workdir", "timeout": 90000 } [tool error] Exit code 1 sandbox_extension_issue_file_to_process failed for /Applications/Google Chrome.app: 1 (Operation not permitted) [1028/081654.412227:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:41] getxattr size org.chromium.crashpad.database.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081654.413011:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:41] getxattr size com.googlecode.crashpad.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081654.413031:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:66] setxattr org.chromium.crashpad.database.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081654.413444:ERROR:third_party/crashpad/crashpad/util/file/file_io.cc:103] ReadExactly: expected 8, observed 0 [1028/081654.413687:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:41] getxattr size org.chromium.crashpad.database.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081654.413709:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:41] getxattr size com.googlecode.crashpad.initialized on file [redacted:user-path] Operation not permitted (1) [1028/081654.413727:ERROR:third_party/crashpad/crashpad/util/mac/xattr.cc:66] setxattr org.chromium.crashpad.database.initialized on file [redacted:user-path] Operation not permitted (1) [56804:16301111:1028/081654.420574:ERROR:chrome/browser/process_singleton_posix.cc:1046] Failed to create socket directory. [56804:16301111:1028/081654.420666:ERROR:chrome/app/chrome_main_delegate.cc:624] Failed to create a ProcessSingleton for your profile directory. This means that running multiple instances would start multiple browser processes rather than opening a new window in the existing process. Aborting now to avoid profile corruption. ls: shot1.png: No such file or directory [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Headless Chrome won't launch here due to sandbox restrictions on the home directory and temp socket, so I'll note in the summary that browser preview isn't possible. Instead, I'll clean up the CPU fallback renderer and run it in Node to produce a PNG of the wax simulation for checking shapes, pool, and colors. [tool Read] { "file_path": "[workspace]/index.html", "offset": 418, "limit": 80 } [tool result] 418 /* ---- renderers ------------------------------------------------------ */ 419 const canvas = $('wax'); 420 Object.assign(canvas.style, { 421 left: BOX.x / 400 * 100 + '%', top: BOX.y / 750 * 100 + '%', 422 width: BOX.w / 400 * 100 + '%', height: BOX.h / 750 * 100 + '%' 423 }); 424 const A = new Float32Array(CAP * 4), B = new Float32Array(CAP * 4); 425 const HW_GLSL = `float hw(float y){float t=clamp((y-${TOP}.)/${SPAN}.,0.,1.);return 36.+62.*(.35*t+.65*t*t);}`; 426 427 const VERT = 'attribute vec2 aPos;varying vec2 vUv;void main(){vUv=aPos*.5+.5;gl_Position=vec4(aPos,0.,1.);}'; 428 const FRAG = ` 429 #ifdef GL_FRAGMENT_PRECISION_HIGH 430 precision highp float; 431 #else 432 precision mediump float; 433 #endif 434 #define N ${CAP} 435 uniform vec4 uA[N]; 436 uniform vec4 uB[N]; 437 uniform int uN; 438 uniform vec4 uBox; 439 uniform float uLight, uPx; 440 varying vec2 vUv; 441 const float CX = ${CX}., TOP = ${TOP}., BOT = ${BOT}., THR = ${THR.toFixed(5)}; 442 ${HW_GLSL} 443 float hash(vec2 p){return fract(sin(dot(p, vec2(12.9898, 78.233))) * 43758.5453);} 444 445 void main(){ 446 vec2 p = vec2(uBox.x + vUv.x * uBox.z, uBox.y + (1. - vUv.y) * uBox.w); 447 float w = hw(p.y), ax = abs(p.x - CX); 448 float mask = clamp((w - ax) / uPx + .5, 0., 1.); 449 if (mask <= 0.) { gl_FragColor = vec4(0.); return; } 450 451 // metaball field: sum of (1-q)^3 kernels, plus its gradient and a temperature average 452 float F = 0., Tw = 0.; vec2 g = vec2(0.); 453 for (int i = 0; i < N; i++) { 454 if (i >= uN) break; 455 vec4 a = uA[i]; vec4 b = uB[i]; 456 vec2 d = p - a.xy; 457 float q = (d.x * d.x * b.x + d.y * d.y * b.y) * a.z; 458 if (q < 1.) { 459 float m = 1. - q; 460 F += m * m * m; Tw += m * m * m * a.w; 461 g -= 6. * m * m * a.z * vec2(d.x * b.x, d.y * b.y); 462 } 463 } 464 465 float L = uLight; 466 float ty = clamp((p.y - TOP) / (BOT - TOP), 0., 1.); // 0 top .. 1 floor 467 float rel = ax / w; 468 469 // liquid: lit from the bulb below 470 vec3 liqOn = mix(vec3(.05, .04, .20), vec3(.30, .07, .40), smoothstep(0., .6, ty)); 471 liqOn = mix(liqOn, vec3(.74, .17, .42), smoothstep(.5, 1., ty)); 472 vec3 liqOff = vec3(.055, .065, .10) * (.7 + .5 * ty); 473 vec3 liq = mix(liqOff, liqOn, L); 474 float halo = smoothstep(0., THR, F); 475 liq += mix(vec3(.01, .01, .015), vec3(.5, .17, .08), L) * halo * halo * .5; 476 liq *= 1. - .55 * smoothstep(.5, 1., rel); 477 478 // wax: dome normal rebuilt from the field, lit from below, warm core 479 float Tm = Tw / max(F, 1e-4); 480 float gl = length(g) + 1e-5; 481 float rho = 1. - clamp((F - THR) / (1. - THR), 0., 1.); 482 vec3 n = normalize(vec3(-g / gl * rho, sqrt(max(1. - rho * rho, 0.)) + .05)); 483 float dif = clamp(dot(n, normalize(vec3(0., .7, .7))) * .6 + .4, 0., 1.); 484 float rim = pow(1. - n.z, 2.5); 485 float bulb = mix(.5, 1., ty * ty); 486 vec3 base = mix(vec3(.93, .28, .16), vec3(1., .74, .24), smoothstep(.3, .95, Tm)); 487 vec3 waxOn = base * (.3 + dif * bulb) + base * (1. - rho) * .35 + vec3(1., .8, .6) * rim * .3 * bulb; 488 vec3 waxOff = vec3(.5, .2, .13) * (.18 + .4 * clamp(dot(n, normalize(vec3(-.3, -.6, .7))), 0., 1.)); 489 float spec = pow(max(dot(n, normalize(vec3(-.35, -.55, .76))), 0.), 36.) * .35; 490 vec3 wax = mix(waxOff, waxOn, L) + vec3(1., .9, .8) * spec * (.35 + .65 * L); 491 492 float cov = clamp((F - THR) / (gl * uPx) + .5, 0., 1.); 493 vec3 col = mix(liq, wax, cov) + (hash(gl_FragCoord.xy) - .5) / 255.; 494 gl_FragColor = vec4(col * mask, mask); 495 }`; 496 497 function createGLRenderer() { [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Found a risk: `pow(1. - n.z, 2.5)` could get a negative base from rounding errors, producing NaN that shows up as black speckles despite the zero multiplier in the final mix. I'll clamp it and then rewrite the messy CPU renderer. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " float rim = pow(1. - n.z, 2.5);", "new_string": " float rim = pow(max(1. - n.z, 0.), 2.5);" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Grep] { "pattern": "Fallback when WebGL is missing|^/\\* ---- main loop", "path": "[workspace]/index.html", "output_mode": "content", "-n": true } [tool result] 534:/* Fallback when WebGL is missing: same look at a quarter of the pixels on the CPU. */ 600:/* ---- main loop ------------------------------------------------------ */ [system] status [tool Read] { "file_path": "[workspace]/index.html", "offset": 532, "limit": 68 } [tool result] 532 } 533 534 /* Fallback when WebGL is missing: same look at a quarter of the pixels on the CPU. */ 535 function createCPURenderer() { 536 const ctx = canvas.getContext('2d'); 537 const lw = BOX.w >> 1, lh = BOX.h >> 1, k = BOX.w / lw; 538 const off = document.createElement('canvas'); off.width = lw; off.height = lh; 539 const octx = off.getContext('2d'), img = octx.createImageData(lw, lh), px = img.data; 540 const mix = (a, b, t) => a + (b - a) * t; 541 const sstep = (a, b, x) => ss(a, b, x); 542 return { 543 draw(sim) { 544 const n = sim.pack(A, B), L = sim.light; 545 for (let j = 0, o = 0; j < lh; j++) { 546 const y = BOX.y + (j + 0.5) * k, w = hw(y), ty = Math.min(1, Math.max(0, (y - TOP) / SPAN)); 547 for (let i = 0; i < lw; i++, o += 4) { 548 const x = BOX.x + (i + 0.5) * k, ax = Math.abs(x - CX); 549 const mask = Math.min(1, Math.max(0, (w - ax) / k + 0.5)); 550 if (mask <= 0) { px[o + 3] = 0; continue; } 551 let F = 0, Tw = 0, gx = 0, gy = 0; 552 for (let b = 0; b < n; b++) { 553 const q4 = b * 4, dx = x - A[q4], dy = y - A[q4 + 1]; 554 const q = (dx * dx * B[q4] + dy * dy * B[q4 + 1]) * A[q4 + 2]; 555 if (q < 1) { 556 const m = 1 - q, f = m * m * m; 557 F += f; Tw += f * A[q4 + 3]; 558 const c = -6 * m * m * A[q4 + 2]; 559 gx += c * dx * B[q4]; gy += c * dy * B[q4 + 1]; 560 } 561 } 562 const dark = 1 - 0.55 * sstep(0.5, 1, ax / w); 563 const halo = sstep(0, THR, F), hh = halo * halo * 0.5; 564 const t1 = sstep(0, 0.6, ty), t2 = sstep(0.5, 1, ty), off0 = 0.7 + 0.5 * ty; 565 let r = mix(mix(0.055 * off0, mix(0.05, 0.30, t1), L), mix(mix(0.05, 0.30, t1), 0.74, t2), L > 0 ? 0 : 0); 566 // liquid colour per channel 567 const lr = mix(0.055 * off0, mix(mix(0.05, 0.30, t1), 0.74, t2), L) + mix(0.01, 0.5, L) * hh; 568 const lg = mix(0.065 * off0, mix(mix(0.04, 0.07, t1), 0.17, t2), L) + mix(0.01, 0.17, L) * hh; 569 const lb = mix(0.10 * off0, mix(mix(0.20, 0.40, t1), 0.42, t2), L) + mix(0.015, 0.08, L) * hh; 570 r = lr * dark; const g = lg * dark, bl = lb * dark; 571 let R = r, Gc = g, Bc = bl; 572 if (F > THR * 0.9) { 573 const gl = Math.hypot(gx, gy) + 1e-5; 574 const rho = 1 - Math.min(1, Math.max(0, (F - THR) / (1 - THR))); 575 const nz = Math.sqrt(Math.max(1 - rho * rho, 0)) + 0.05; 576 const nx = -gx / gl * rho, ny = -gy / gl * rho, inv = 1 / Math.hypot(nx, ny, nz); 577 const dif = Math.min(1, Math.max(0, (ny * 0.7 + nz * 0.7) * inv * 0.6 + 0.4)); 578 const rimv = Math.pow(1 - nz * inv, 2.5), bulb = mix(0.5, 1, ty * ty); 579 const tm = sstep(0.3, 0.95, Tw / Math.max(F, 1e-4)); 580 const br = mix(0.93, 1, tm), bg = mix(0.28, 0.74, tm), bb = mix(0.16, 0.24, tm); 581 const lit = 0.3 + dif * bulb + (1 - rho) * 0.35, off1 = 0.18 + 0.4 * Math.max(0, (-0.3 * nx - 0.6 * ny + 0.7 * nz) * inv / 1.0); 582 const wr = mix(0.5 * off1, br * lit + rimv * 0.3 * bulb, L); 583 const wg = mix(0.2 * off1, bg * lit + rimv * 0.24 * bulb, L); 584 const wb = mix(0.13 * off1, bb * lit + rimv * 0.18 * bulb, L); 585 const cov = Math.min(1, Math.max(0, (F - THR) / (gl * k) + 0.5)); 586 R = mix(R, wr, cov); Gc = mix(Gc, wg, cov); Bc = mix(Bc, wb, cov); 587 } 588 px[o] = Math.min(255, R * 255); px[o + 1] = Math.min(255, Gc * 255); px[o + 2] = Math.min(255, Bc * 255); 589 px[o + 3] = mask * 255; 590 } 591 } 592 octx.putImageData(img, 0, 0); 593 ctx.clearRect(0, 0, canvas.width, canvas.height); 594 ctx.imageSmoothingEnabled = true; 595 ctx.drawImage(off, 0, 0, canvas.width, canvas.height); 596 } 597 }; 598 } 599 [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const dark = 1 - 0.55 * sstep(0.5, 1, ax / w);\n const halo = sstep(0, THR, F), hh = halo * halo * 0.5;\n const t1 = sstep(0, 0.6, ty), t2 = sstep(0.5, 1, ty), off0 = 0.7 + 0.5 * ty;\n let r = mix(mix(0.055 * off0, mix(0.05, 0.30, t1), L), mix(mix(0.05, 0.30, t1), 0.74, t2), L > 0 ? 0 : 0);\n // liquid colour per channel\n const lr = mix(0.055 * off0, mix(mix(0.05, 0.30, t1), 0.74, t2), L) + mix(0.01, 0.5, L) * hh;\n const lg = mix(0.065 * off0, mix(mix(0.04, 0.07, t1), 0.17, t2), L) + mix(0.01, 0.17, L) * hh;\n const lb = mix(0.10 * off0, mix(mix(0.20, 0.40, t1), 0.42, t2), L) + mix(0.015, 0.08, L) * hh;\n r = lr * dark; const g = lg * dark, bl = lb * dark;\n let R = r, Gc = g, Bc = bl;\n if (F > THR * 0.9) {\n const gl = Math.hypot(gx, gy) + 1e-5;\n const rho = 1 - Math.min(1, Math.max(0, (F - THR) / (1 - THR)));\n const nz = Math.sqrt(Math.max(1 - rho * rho, 0)) + 0.05;\n const nx = -gx / gl * rho, ny = -gy / gl * rho, inv = 1 / Math.hypot(nx, ny, nz);\n const dif = Math.min(1, Math.max(0, (ny * 0.7 + nz * 0.7) * inv * 0.6 + 0.4));\n const rimv = Math.pow(1 - nz * inv, 2.5), bulb = mix(0.5, 1, ty * ty);\n const tm = sstep(0.3, 0.95, Tw / Math.max(F, 1e-4));\n const br = mix(0.93, 1, tm), bg = mix(0.28, 0.74, tm), bb = mix(0.16, 0.24, tm);\n const lit = 0.3 + dif * bulb + (1 - rho) * 0.35, off1 = 0.18 + 0.4 * Math.max(0, (-0.3 * nx - 0.6 * ny + 0.7 * nz) * inv / 1.0);\n const wr = mix(0.5 * off1, br * lit + rimv * 0.3 * bulb, L);\n const wg = mix(0.2 * off1, bg * lit + rimv * 0.24 * bulb, L);\n const wb = mix(0.13 * off1, bb * lit + rimv * 0.18 * bulb, L);\n const cov = Math.min(1, Math.max(0, (F - THR) / (gl * k) + 0.5));\n R = mix(R, wr, cov); Gc = mix(Gc, wg, cov); Bc = mix(Bc, wb, cov);\n }", "new_string": " // liquid, same palette as the shader\n const edge = 1 - 0.55 * ss(0.5, 1, ax / w);\n const halo = ss(0, THR, F), hh = halo * halo * 0.5;\n const t1 = ss(0, 0.6, ty), t2 = ss(0.5, 1, ty), dim = 0.7 + 0.5 * ty;\n let R = (mix(0.055 * dim, mix(mix(0.05, 0.30, t1), 0.74, t2), L) + mix(0.01, 0.5, L) * hh) * edge;\n let Gc = (mix(0.065 * dim, mix(mix(0.04, 0.07, t1), 0.17, t2), L) + mix(0.01, 0.17, L) * hh) * edge;\n let Bc = (mix(0.10 * dim, mix(mix(0.20, 0.40, t1), 0.42, t2), L) + mix(0.015, 0.08, L) * hh) * edge;\n if (F > THR * 0.9) { // wax\n const gl = Math.hypot(gx, gy) + 1e-5;\n const rho = 1 - Math.min(1, Math.max(0, (F - THR) / (1 - THR)));\n const nz0 = Math.sqrt(Math.max(1 - rho * rho, 0)) + 0.05;\n const inv = 1 / Math.hypot(gx / gl * rho, gy / gl * rho, nz0);\n const nx = -gx / gl * rho * inv, ny = -gy / gl * rho * inv, nz = nz0 * inv;\n const dif = Math.min(1, Math.max(0, (ny + nz) * 0.7071 * 0.6 + 0.4));\n const rim = Math.pow(Math.max(1 - nz, 0), 2.5), bulb = mix(0.5, 1, ty * ty);\n const spec = Math.pow(Math.max((-0.35 * nx - 0.55 * ny + 0.76 * nz) / 1.0013, 0), 36) * 0.35;\n const tm = ss(0.3, 0.95, Tw / Math.max(F, 1e-4));\n const lit = 0.3 + dif * bulb + (1 - rho) * 0.35;\n const off1 = 0.18 + 0.4 * Math.min(1, Math.max(0, (-0.3 * nx - 0.6 * ny + 0.7 * nz) / 0.9695));\n const sp = spec * (0.35 + 0.65 * L);\n const wr = mix(0.5 * off1, mix(0.93, 1, tm) * lit + rim * 0.3 * bulb, L) + sp;\n const wg = mix(0.2 * off1, mix(0.28, 0.74, tm) * lit + rim * 0.24 * bulb, L) + sp * 0.9;\n const wb = mix(0.13 * off1, mix(0.16, 0.24, tm) * lit + rim * 0.18 * bulb, L) + sp * 0.8;\n const cov = Math.min(1, Math.max(0, (F - THR) / (gl * k) + 0.5));\n R = mix(R, wr, cov); Gc = mix(Gc, wg, cov); Bc = mix(Bc, wb, cov);\n }" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const mix = (a, b, t) => a + (b - a) * t;\n const sstep = (a, b, x) => ss(a, b, x);\n return {", "new_string": " const mix = (a, b, t) => a + (b - a) * t;\n return {" } [tool result] The file [workspace]/index.html has been updated successfully. [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] I'll write a Node harness that runs the real simulation, renders it via the CPU renderer's code path, and outputs a PNG contact sheet showing four states: running, a later moment, lamp off/cold, and warming up again. [tool Write] { "file_path": "[workspace]/.scratch/render.js", "content": "// Renders the wax with the page's own CPU renderer code into a PNG contact sheet.\nconst fs = require('fs');\nconst zlib = require('zlib');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst outFile = process.argv[3];\nconst seed = +(process.argv[4] || 7);\n\nconst sim = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst cpu = html.slice(html.indexOf('function createCPURenderer'), html.indexOf('/* ---- main loop'));\nlet captured = null;\nconst canvas = { width: 420, height: 840, getContext: () => ({ clearRect() {}, drawImage() {}, set imageSmoothingEnabled(v) {} }) };\nconst document = { createElement: () => ({ width: 0, height: 0, getContext: () => ({\n createImageData: (w, h) => ({ width: w, height: h, data: new Uint8ClampedArray(w * h * 4) }),\n putImageData: img => { captured = img; } }) }) };\nconst BOX = { x: 95, y: 94, w: 210, h: 420 };\nconst A = new Float32Array(64), B = new Float32Array(64);\nconst api = new Function('canvas', 'document', 'BOX', 'A', 'B', sim + cpu + '; return {createCPURenderer, createSim};')(canvas, document, BOX, A, B);\n\nfunction png(w, h, rgba) {\n const raw = Buffer.alloc((w * 4 + 1) * h);\n for (let y = 0; y < h; y++) { raw[y * (w * 4 + 1)] = 0; rgba.copy(raw, y * (w * 4 + 1) + 1, y * w * 4, (y + 1) * w * 4); }\n const chunk = (type, data) => {\n const len = Buffer.alloc(4); len.writeUInt32BE(data.length);\n const td = Buffer.concat([Buffer.from(type), data]);\n const crc = Buffer.alloc(4); crc.writeUInt32BE(zlib.crc32(td) >>> 0);\n return Buffer.concat([len, td, crc]);\n };\n const ihdr = Buffer.alloc(13); ihdr.writeUInt32BE(w, 0); ihdr.writeUInt32BE(h, 4); ihdr[8] = 8; ihdr[9] = 6;\n return Buffer.concat([Buffer.from([137, 80, 78, 71, 13, 10, 26, 10]), chunk('IHDR', ihdr), chunk('IDAT', zlib.deflateSync(raw)), chunk('IEND', Buffer.alloc(0))]);\n}\n\nconst S = 3, lw = 105, lh = 210, PW = lw * S, PH = lh * S, GAP = 8;\nconst states = [];\nconst s = api.createSim(seed);\nconst r = api.createCPURenderer();\nfunction snap(label) {\n r.draw(s);\n const px = Buffer.alloc(PW * PH * 4);\n const wall = [26, 30, 46];\n for (let y = 0; y < PH; y++) for (let x = 0; x < PW; x++) {\n // bilinear upscale of the low-res field image\n const fx = Math.max(0, Math.min(lw - 1.001, (x + 0.5) / S - 0.5)), fy = Math.max(0, Math.min(lh - 1.001, (y + 0.5) / S - 0.5));\n const x0 = Math.floor(fx), y0 = Math.floor(fy), tx = fx - x0, ty = fy - y0;\n const at = (xx, yy, c) => captured.data[(yy * lw + xx) * 4 + c];\n const o = (y * PW + x) * 4;\n const a = [0, 1, 2, 3].map(c => (at(x0, y0, c) * (1 - tx) + at(x0 + 1, y0, c) * tx) * (1 - ty) + (at(x0, y0 + 1, c) * (1 - tx) + at(x0 + 1, y0 + 1, c) * tx) * ty);\n const al = a[3] / 255;\n for (let c = 0; c < 3; c++) px[o + c] = Math.round(a[c] * al + wall[c] * (1 - al));\n px[o + 3] = 255;\n }\n states.push(px);\n console.log(label, 'free=', s.free, 'heat=', s.heat.toFixed(2), 'light=', s.light.toFixed(2));\n}\nsnap('start');\nfor (let i = 0; i < 25 * 60; i++) s.step(1 / 60);\nsnap('+25s');\ns.setOn(false);\nfor (let i = 0; i < 70 * 60; i++) s.step(1 / 60);\nsnap('off+70s');\ns.setOn(true);\nfor (let i = 0; i < 12 * 60; i++) s.step(1 / 60);\nsnap('on+12s');\nfor (let i = 0; i < 12 * 60; i++) s.step(1 / 60);\nsnap('on+24s');\n\nconst W = states.length * PW + (states.length - 1) * GAP, out = Buffer.alloc(W * PH * 4, 20);\nstates.forEach((px, k) => { for (let y = 0; y < PH; y++) px.copy(out, (y * W + k * (PW + GAP)) * 4, y * PW * 4, (y + 1) * PW * 4); });\nfs.writeFileSync(outFile, png(W, PH, out));\nconsole.log('wrote', outFile, W + 'x' + PH);\n" } [tool result] File created successfully at: [workspace]/.scratch/render.js (file state is current in your context — no need to Read it back) [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " split(b); b.split = time + range(10, 24);", "new_string": " split(b); b.split = time + range(18, 40);" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Bash] { "command": "cd .scratch && node --jitless render.js ../index.html sheet.png 7 2>&1 | grep -v \"Warning: disabling\"", "description": "Render contact sheet of wax states via CPU renderer", "timeout": 300000 } [tool result] start free= 3 heat= 1.00 light= 1.00 +25s free= 5 heat= 1.00 light= 1.00 off+70s free= 0 heat= 0.00 light= 0.00 on+12s free= 1 heat= 0.97 light= 1.00 on+24s free= 1 heat= 1.00 light= 1.00 wrote sheet.png 1607x630 zsh:1: operation not permitted: [redacted:local-path] [system] status [tool Read] { "file_path": "[workspace]/.scratch/sheet.png" } [tool result] [image] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] The CPU render confirms physics and shading work correctly, but I found four issues to fix: rescale lighting and warm the palette to avoid flat yellow clipping, enlarge spawned blobs, mount a fresh canvas per renderer to handle shader-compile fallback safely, and rename a GLSL variable that's confusingly close to the reserved `gl_` prefix. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " float gl = length(g) + 1e-5;\n float rho = 1. - clamp((F - THR) / (1. - THR), 0., 1.);\n vec3 n = normalize(vec3(-g / gl * rho, sqrt(max(1. - rho * rho, 0.)) + .05));\n float dif = clamp(dot(n, normalize(vec3(0., .7, .7))) * .6 + .4, 0., 1.);\n float rim = pow(max(1. - n.z, 0.), 2.5);\n float bulb = mix(.5, 1., ty * ty);\n vec3 base = mix(vec3(.93, .28, .16), vec3(1., .74, .24), smoothstep(.3, .95, Tm));\n vec3 waxOn = base * (.3 + dif * bulb) + base * (1. - rho) * .35 + vec3(1., .8, .6) * rim * .3 * bulb;", "new_string": " float gm = length(g) + 1e-5;\n float rho = 1. - clamp((F - THR) / (1. - THR), 0., 1.);\n vec3 n = normalize(vec3(-g / gm * rho, sqrt(max(1. - rho * rho, 0.)) + .05));\n float dif = clamp(dot(n, normalize(vec3(0., .7, .7))) * .6 + .4, 0., 1.);\n float rim = pow(max(1. - n.z, 0.), 2.5);\n float bulb = mix(.5, 1., ty * ty);\n vec3 base = mix(vec3(${COOL}), vec3(${HOT}), smoothstep(.3, .95, Tm));\n vec3 waxOn = base * (.22 + .62 * dif * bulb + .22 * (1. - rho)) + vec3(1., .8, .6) * rim * .3 * bulb;" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " float cov = clamp((F - THR) / (gl * uPx) + .5, 0., 1.);", "new_string": " float cov = clamp((F - THR) / (gm * uPx) + .5, 0., 1.);" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "const HW_GLSL = `float hw", "new_string": "const COOL = [0.93, 0.26, 0.16], HOT = [1, 0.66, 0.22]; // wax colour at T=0.3 and T=0.95\nconst HW_GLSL = `float hw" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const lit = 0.3 + dif * bulb + (1 - rho) * 0.35;\n const off1 = 0.18 + 0.4 * Math.min(1, Math.max(0, (-0.3 * nx - 0.6 * ny + 0.7 * nz) / 0.9695));\n const sp = spec * (0.35 + 0.65 * L);\n const wr = mix(0.5 * off1, mix(0.93, 1, tm) * lit + rim * 0.3 * bulb, L) + sp;\n const wg = mix(0.2 * off1, mix(0.28, 0.74, tm) * lit + rim * 0.24 * bulb, L) + sp * 0.9;\n const wb = mix(0.13 * off1, mix(0.16, 0.24, tm) * lit + rim * 0.18 * bulb, L) + sp * 0.8;", "new_string": " const lit = 0.22 + 0.62 * dif * bulb + 0.22 * (1 - rho);\n const off1 = 0.18 + 0.4 * Math.min(1, Math.max(0, (-0.3 * nx - 0.6 * ny + 0.7 * nz) / 0.9695));\n const sp = spec * (0.35 + 0.65 * L);\n const wr = mix(0.5 * off1, mix(COOL[0], HOT[0], tm) * lit + rim * 0.3 * bulb, L) + sp;\n const wg = mix(0.2 * off1, mix(COOL[1], HOT[1], tm) * lit + rim * 0.24 * bulb, L) + sp * 0.9;\n const wb = mix(0.13 * off1, mix(COOL[2], HOT[2], tm) * lit + rim * 0.18 * bulb, L) + sp * 0.8;" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const target = Math.max(200, Math.min(range(0.12, 0.24) * pick.v, pick.v - 1100));", "new_string": " const target = Math.max(260, Math.min(range(0.16, 0.30) * pick.v, pick.v - 1100));" } [tool result] The file [workspace]/index.html has been updated successfully. [system] status [system] thinking_tokens [system] thinking_tokens [assistant] Now the canvas restructure. I'll read the current wiring first. [tool Read] { "file_path": "[workspace]/index.html", "offset": 416, "limit": 12 } [tool result] 416 `; 417 418 /* ---- renderers ------------------------------------------------------ */ 419 const canvas = $('wax'); 420 Object.assign(canvas.style, { 421 left: BOX.x / 400 * 100 + '%', top: BOX.y / 750 * 100 + '%', 422 width: BOX.w / 400 * 100 + '%', height: BOX.h / 750 * 100 + '%' 423 }); 424 const A = new Float32Array(CAP * 4), B = new Float32Array(CAP * 4); 425 const COOL = [0.93, 0.26, 0.16], HOT = [1, 0.66, 0.22]; // wax colour at T=0.3 and T=0.95 426 const HW_GLSL = `float hw(float y){float t=clamp((y-${TOP}.)/${SPAN}.,0.,1.);return 36.+62.*(.35*t+.65*t*t);}`; 427 [tool Read] { "file_path": "[workspace]/index.html", "offset": 496, "limit": 42 } [tool result] 496 }`; 497 498 function createGLRenderer() { 499 const gl = canvas.getContext('webgl', { alpha: true, antialias: false, depth: false, stencil: false, premultipliedAlpha: true, powerPreference: 'high-performance' }); 500 if (!gl) return null; 501 const sh = (type, src) => { 502 const o = gl.createShader(type); 503 gl.shaderSource(o, src); gl.compileShader(o); 504 if (!gl.getShaderParameter(o, gl.COMPILE_STATUS)) throw new Error(gl.getShaderInfoLog(o)); 505 return o; 506 }; 507 try { 508 const prog = gl.createProgram(); 509 gl.attachShader(prog, sh(gl.VERTEX_SHADER, VERT)); 510 gl.attachShader(prog, sh(gl.FRAGMENT_SHADER, FRAG)); 511 gl.linkProgram(prog); 512 if (!gl.getProgramParameter(prog, gl.LINK_STATUS)) throw new Error(gl.getProgramInfoLog(prog)); 513 gl.useProgram(prog); 514 gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer()); 515 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-1, -1, 3, -1, -1, 3]), gl.STATIC_DRAW); 516 const pos = gl.getAttribLocation(prog, 'aPos'); 517 gl.enableVertexAttribArray(pos); 518 gl.vertexAttribPointer(pos, 2, gl.FLOAT, false, 0, 0); 519 const u = n => gl.getUniformLocation(prog, n); 520 const uA = u('uA'), uB = u('uB'), uN = u('uN'), uLight = u('uLight'), uPx = u('uPx'); 521 gl.uniform4f(u('uBox'), BOX.x, BOX.y, BOX.w, BOX.h); 522 return { 523 draw(sim) { 524 gl.viewport(0, 0, canvas.width, canvas.height); 525 gl.uniform1i(uN, sim.pack(A, B)); 526 gl.uniform4fv(uA, A); gl.uniform4fv(uB, B); 527 gl.uniform1f(uLight, sim.light); 528 gl.uniform1f(uPx, BOX.w / canvas.width); 529 gl.drawArrays(gl.TRIANGLES, 0, 3); 530 } 531 }; 532 } catch (e) { console.warn('WebGL shader failed, using 2D fallback:', e); return null; } 533 } 534 535 /* Fallback when WebGL is missing: same look at a quarter of the pixels on the CPU. */ 536 function createCPURenderer() { 537 const ctx = canvas.getContext('2d'); [tool Read] { "file_path": "[workspace]/index.html", "offset": 594, "limit": 60 } [tool result] 594 ctx.imageSmoothingEnabled = true; 595 ctx.drawImage(off, 0, 0, canvas.width, canvas.height); 596 } 597 }; 598 } 599 600 /* ---- main loop ------------------------------------------------------ */ 601 const sim = createSim((Math.random() * 4294967296) >>> 0); 602 const sw = $('sw'), root = document.documentElement; 603 let renderer = location.search.includes('cpu') ? createCPURenderer() : (createGLRenderer() || createCPURenderer()); 604 let quality = 1, dirty = true, shownLight = -1; 605 606 function resize() { 607 const r = canvas.getBoundingClientRect(); 608 const scale = Math.min(window.devicePixelRatio || 1, 2) * quality; 609 const w = Math.max(2, Math.round(r.width * scale)), h = Math.max(2, Math.round(r.height * scale)); 610 if (canvas.width !== w || canvas.height !== h) { canvas.width = w; canvas.height = h; } 611 dirty = true; 612 } 613 if (window.ResizeObserver) new ResizeObserver(resize).observe(canvas); else addEventListener('resize', resize); 614 resize(); 615 616 canvas.addEventListener('webglcontextlost', e => { e.preventDefault(); renderer = null; }); 617 canvas.addEventListener('webglcontextrestored', () => { renderer = createGLRenderer() || createCPURenderer(); dirty = true; }); 618 619 function setLamp(on) { 620 sim.setOn(on); 621 sw.setAttribute('aria-checked', on); 622 dirty = true; 623 } 624 sw.addEventListener('click', () => setLamp(!sim.on)); 625 626 let last = 0, slow = 0, frames = 0, avg = 1 / 60; 627 function frame(now) { 628 requestAnimationFrame(frame); 629 const raw = last ? (now - last) / 1000 : 1 / 60; 630 last = now; 631 const active = sim.on || sim.heat > 0.003 || sim.light > 0.003 || sim.free > 0; 632 if (!active && !dirty) return; // cold lamp: nothing moves, so draw nothing 633 if (active) sim.step(Math.min(raw, 1 / 30)); 634 if (Math.abs(sim.light - shownLight) > 0.001) { shownLight = sim.light; root.style.setProperty('--l', sim.light.toFixed(3)); } 635 if (renderer) renderer.draw(sim); 636 dirty = active; 637 638 // if the device cannot keep up, trade resolution for frame rate 639 if (raw < 0.1) avg += (raw - avg) * 0.05; 640 if (++frames % 45 === 0 && quality > 0.55 && avg > 1 / 46 && ++slow >= 2) { quality *= 0.85; slow = 0; avg = 1 / 60; resize(); } 641 } 642 requestAnimationFrame(frame); 643 })(); 644 645 646 647 [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " \n", "new_string": "" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " #wax { display: block; }\n", "new_string": "" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "const canvas = $('wax');\nObject.assign(canvas.style, {\n left: BOX.x / 400 * 100 + '%', top: BOX.y / 750 * 100 + '%',\n width: BOX.w / 400 * 100 + '%', height: BOX.h / 750 * 100 + '%'\n});\nconst A = ", "new_string": "/* A canvas can only ever hold one kind of context, so each renderer gets a fresh one. */\nlet canvas = null;\nfunction mountCanvas() {\n const c = document.createElement('canvas');\n c.setAttribute('aria-hidden', 'true');\n Object.assign(c.style, {\n left: BOX.x / 400 * 100 + '%', top: BOX.y / 750 * 100 + '%',\n width: BOX.w / 400 * 100 + '%', height: BOX.h / 750 * 100 + '%'\n });\n c.addEventListener('webglcontextlost', e => { e.preventDefault(); renderer = null; });\n c.addEventListener('webglcontextrestored', () => { renderer = makeRenderer(false); dirty = true; });\n if (canvas) { if (ro) ro.unobserve(canvas); canvas.replaceWith(c); } else $('stage').insertBefore(c, $('front'));\n canvas = c;\n if (ro) ro.observe(c);\n resize();\n}\nconst A =" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "function createGLRenderer() {\n const gl = canvas.getContext('webgl',", "new_string": "function createGLRenderer() {\n mountCanvas();\n const gl = canvas.getContext('webgl'," } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "function createCPURenderer() {\n const ctx = canvas.getContext('2d');", "new_string": "function createCPURenderer() {\n mountCanvas();\n const ctx = canvas.getContext('2d');" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "let renderer = location.search.includes('cpu') ? createCPURenderer() : (createGLRenderer() || createCPURenderer());\nlet quality = 1, dirty = true, shownLight = -1;\n\nfunction resize() {\n const r = canvas.getBoundingClientRect();\n const scale = Math.min(window.devicePixelRatio || 1, 2) * quality;\n const w = Math.max(2, Math.round(r.width * scale)), h = Math.max(2, Math.round(r.height * scale));\n if (canvas.width !== w || canvas.height !== h) { canvas.width = w; canvas.height = h; }\n dirty = true;\n}\nif (window.ResizeObserver) new ResizeObserver(resize).observe(canvas); else addEventListener('resize', resize);\nresize();\n\ncanvas.addEventListener('webglcontextlost', e => { e.preventDefault(); renderer = null; });\ncanvas.addEventListener('webglcontextrestored', () => { renderer = createGLRenderer() || createCPURenderer(); dirty = true; });\n", "new_string": "let quality = 1, dirty = true, shownLight = -1, renderer = null;\n\nfunction resize() {\n if (!canvas) return;\n const r = canvas.getBoundingClientRect();\n const scale = Math.min(window.devicePixelRatio || 1, 2) * quality;\n const w = Math.max(2, Math.round(r.width * scale)), h = Math.max(2, Math.round(r.height * scale));\n if (canvas.width !== w || canvas.height !== h) { canvas.width = w; canvas.height = h; }\n dirty = true;\n}\nconst ro = window.ResizeObserver ? new ResizeObserver(resize) : null;\nif (!ro) addEventListener('resize', resize);\n\nfunction makeRenderer(cpuOnly) { return (!cpuOnly && createGLRenderer()) || createCPURenderer(); }\nrenderer = makeRenderer(location.search.includes('cpu'));\n" } [tool result] The file [workspace]/index.html has been updated successfully. [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] I'll add a `mountCanvas` stub to the Node harness and write a check script that syntax-checks the page script, extracts the generated SVG for `xmllint` validation, and re-renders the contact sheet with the new palette. [tool Edit] { "replace_all": false, "file_path": "[workspace]/.scratch/render.js", "old_string": "const api = new Function('canvas', 'document', 'BOX', 'A', 'B', sim + cpu + '; return {createCPURenderer, createSim};')(canvas, document, BOX, A, B);", "new_string": "const api = new Function('canvas', 'document', 'BOX', 'A', 'B', 'mountCanvas', 'COOL', 'HOT', sim + cpu + '; return {createCPURenderer, createSim};')(canvas, document, BOX, A, B, () => {}, [0.93, 0.26, 0.16], [1, 0.66, 0.22]);" } [tool result] The file [workspace]/.scratch/render.js has been updated successfully. (file state is current in your context — no need to Read it back) [tool Write] { "file_path": "[workspace]/.scratch/check.js", "content": "// 1) syntax-check the page script, 2) extract the generated SVG for xmllint.\nconst fs = require('fs');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst script = html.split('')[0];\nnew Function(script); // throws on syntax errors\nconsole.log('script syntax OK,', script.split('\\n').length, 'lines');\n\nconst sim = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst scenery = html.slice(html.indexOf('/* ---- scenery'), html.indexOf('/* ---- renderers'));\nlet svg = '';\nconst document = { getElementById: () => ({ set innerHTML(v) { svg = v; } }) };\nnew Function('document', sim + scenery)(document);\nfs.writeFileSync(process.argv[3], '' + svg + '');\nconsole.log('svg bytes', svg.length);\n" } [tool result] File created successfully at: [workspace]/.scratch/check.js (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless check.js ../index.html front.svg 2>&1 | grep -v \"Warning: disabling\"; xmllint --noout front.svg && echo \"svg well-formed\"; node --jitless render.js ../index.html sheet2.png 5 2>&1 | grep -v \"Warning: disabling\"", "description": "Syntax-check script, validate SVG, re-render sheet", "timeout": 300000 } [tool result] script syntax OK, 531 lines svg bytes 8062 svg well-formed start free= 4 heat= 1.00 light= 1.00 +25s free= 6 heat= 1.00 light= 1.00 off+70s free= 0 heat= 0.00 light= 0.00 on+12s free= 2 heat= 0.97 light= 1.00 on+24s free= 5 heat= 1.00 light= 1.00 wrote sheet2.png 1607x630 zsh:1: operation not permitted: [redacted:local-path] [system] status [tool Read] { "file_path": "[workspace]/.scratch/sheet2.png" } [tool result] [image] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] The lava lamp effect is working well, but I'll brighten the hot wax a bit since it looks muddy. I'll also optimize the glow layers to be viewport-sized with `will-change: opacity` instead of oversized repaint-heavy elements, and give the stage an explicit width rather than relying on `aspect-ratio`. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " :root {\n --l: 1; /* lamp light level 0..1, written from JS */\n --vh: 1vh;\n --desk: max(calc(17 * var(--vh)), 84px);\n }\n @supports (height: 100dvh) { :root { --vh: 1dvh; } }", "new_string": " :root {\n --l: 1; /* lamp light level 0..1, written from JS */\n --vh: 1vh;\n --desk: max(calc(17 * var(--vh)), 84px);\n --base: calc(var(--desk) * .62); /* lamp base sits this far above the screen bottom */\n --sh: min(calc(100 * var(--vh) - var(--base) - 3 * var(--vh)), 270vw); /* lamp stage height */\n }\n @supports (height: 100dvh) { :root { --vh: 1dvh; } }" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " /* ---- stage: everything that scales with the lamp -------------------- */\n #stage {\n position: absolute; left: 50%; transform: translateX(-50%);\n bottom: calc(var(--desk) * .62);\n height: min(calc(100 * var(--vh) - var(--desk) * .62 - 3 * var(--vh)), 270vw);\n aspect-ratio: 400 / 750;\n }\n #stage > * { position: absolute; pointer-events: none; }\n #glowWall {\n left: -170%; right: -170%; top: -12%; bottom: 8%; opacity: var(--l);\n background:\n radial-gradient(ellipse 28% 46% at 50% 42%, rgba(255, 95, 150, .30), rgba(190, 60, 200, .13) 55%, transparent 100%);\n }\n #glowDesk {\n left: -60%; right: -60%; bottom: -10%; height: 16%; opacity: var(--l);\n background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(255, 110, 150, .34), transparent 100%);\n }\n #shadow {", "new_string": " /* light the lamp throws on the wall and desk; fades with --l on the compositor */\n #glowWall {\n position: absolute; inset: 0; opacity: var(--l); will-change: opacity;\n background: radial-gradient(ellipse calc(var(--sh) * .45) calc(var(--sh) * .5) at 50% calc(100% - var(--base) - var(--sh) * .58),\n rgba(255, 95, 150, .30), rgba(190, 60, 200, .13) 55%, transparent 100%);\n }\n #glowDesk {\n position: absolute; left: 0; right: 0; bottom: 0; height: var(--desk); opacity: var(--l); will-change: opacity;\n background: radial-gradient(ellipse calc(var(--sh) * .36) calc(var(--desk) * .36) at 50% calc(100% - var(--base)),\n rgba(255, 110, 150, .36), transparent 100%);\n }\n\n /* ---- stage: everything that scales with the lamp -------------------- */\n #stage {\n position: absolute; left: 50%; transform: translateX(-50%); bottom: var(--base);\n height: var(--sh); width: calc(var(--sh) * 400 / 750);\n }\n #stage > * { position: absolute; pointer-events: none; }\n #shadow {" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": "
\n
\n
\n
\n
", "new_string": "
\n
\n
\n
\n
" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " vec3 waxOn = base * (.22 + .62 * dif * bulb + .22 * (1. - rho)) + vec3(1., .8, .6) * rim * .3 * bulb;", "new_string": " vec3 waxOn = base * (.34 + .64 * dif * bulb + .26 * (1. - rho)) + vec3(1., .8, .6) * rim * .3 * bulb;" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const lit = 0.22 + 0.62 * dif * bulb + 0.22 * (1 - rho);", "new_string": " const lit = 0.34 + 0.64 * dif * bulb + 0.26 * (1 - rho);" } [tool result] The file [workspace]/index.html has been updated successfully. [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [assistant] I can't compile GLSL here, so I'll print the shader as it will actually be generated, with all the `${...}` substitutions applied, and read it line by line for errors. [tool Write] { "file_path": "[workspace]/.scratch/frag.js", "content": "const fs = require('fs');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst sim = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst region = html.slice(html.indexOf('const COOL'), html.indexOf('function createGLRenderer'));\nconst out = new Function(sim + region + '; return {VERT, FRAG};')();\nconsole.log(out.VERT + '\\n' + out.FRAG);\n" } [tool result] File created successfully at: [workspace]/.scratch/frag.js (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless frag.js ../index.html 2>&1 | grep -v \"Warning: disabling\"", "description": "Print generated GLSL for review", "timeout": 60000 } [tool result] attribute vec2 aPos;varying vec2 vUv;void main(){vUv=aPos*.5+.5;gl_Position=vec4(aPos,0.,1.);} #ifdef GL_FRAGMENT_PRECISION_HIGH precision highp float; #else precision mediump float; #endif #define N 16 uniform vec4 uA[N]; uniform vec4 uB[N]; uniform int uN; uniform vec4 uBox; uniform float uLight, uPx; varying vec2 vUv; const float CX = 200., TOP = 96., BOT = 516., THR = 0.49941; float hw(float y){float t=clamp((y-96.)/420.,0.,1.);return 36.+62.*(.35*t+.65*t*t);} float hash(vec2 p){return fract(sin(dot(p, vec2(12.9898, 78.233))) * 43758.5453);} void main(){ vec2 p = vec2(uBox.x + vUv.x * uBox.z, uBox.y + (1. - vUv.y) * uBox.w); float w = hw(p.y), ax = abs(p.x - CX); float mask = clamp((w - ax) / uPx + .5, 0., 1.); if (mask <= 0.) { gl_FragColor = vec4(0.); return; } // metaball field: sum of (1-q)^3 kernels, plus its gradient and a temperature average float F = 0., Tw = 0.; vec2 g = vec2(0.); for (int i = 0; i < N; i++) { if (i >= uN) break; vec4 a = uA[i]; vec4 b = uB[i]; vec2 d = p - a.xy; float q = (d.x * d.x * b.x + d.y * d.y * b.y) * a.z; if (q < 1.) { float m = 1. - q; F += m * m * m; Tw += m * m * m * a.w; g -= 6. * m * m * a.z * vec2(d.x * b.x, d.y * b.y); } } float L = uLight; float ty = clamp((p.y - TOP) / (BOT - TOP), 0., 1.); // 0 top .. 1 floor float rel = ax / w; // liquid: lit from the bulb below vec3 liqOn = mix(vec3(.05, .04, .20), vec3(.30, .07, .40), smoothstep(0., .6, ty)); liqOn = mix(liqOn, vec3(.74, .17, .42), smoothstep(.5, 1., ty)); vec3 liqOff = vec3(.055, .065, .10) * (.7 + .5 * ty); vec3 liq = mix(liqOff, liqOn, L); float halo = smoothstep(0., THR, F); liq += mix(vec3(.01, .01, .015), vec3(.5, .17, .08), L) * halo * halo * .5; liq *= 1. - .55 * smoothstep(.5, 1., rel); // wax: dome normal rebuilt from the field, lit from below, warm core float Tm = Tw / max(F, 1e-4); float gm = length(g) + 1e-5; float rho = 1. - clamp((F - THR) / (1. - THR), 0., 1.); vec3 n = normalize(vec3(-g / gm * rho, sqrt(max(1. - rho * rho, 0.)) + .05)); float dif = clamp(dot(n, normalize(vec3(0., .7, .7))) * .6 + .4, 0., 1.); float rim = pow(max(1. - n.z, 0.), 2.5); float bulb = mix(.5, 1., ty * ty); vec3 base = mix(vec3(0.93,0.26,0.16), vec3(1,0.66,0.22), smoothstep(.3, .95, Tm)); vec3 waxOn = base * (.34 + .64 * dif * bulb + .26 * (1. - rho)) + vec3(1., .8, .6) * rim * .3 * bulb; vec3 waxOff = vec3(.5, .2, .13) * (.18 + .4 * clamp(dot(n, normalize(vec3(-.3, -.6, .7))), 0., 1.)); float spec = pow(max(dot(n, normalize(vec3(-.35, -.55, .76))), 0.), 36.) * .35; vec3 wax = mix(waxOff, waxOn, L) + vec3(1., .9, .8) * spec * (.35 + .65 * L); float cov = clamp((F - THR) / (gm * uPx) + .5, 0., 1.); vec3 col = mix(liq, wax, cov) + (hash(gl_FragCoord.xy) - .5) / 255.; gl_FragColor = vec4(col * mask, mask); } zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] The shader checks out as valid GLSL ES 1.0. I noticed blobs can retain stale `into` references to already-absorbed partners, so I'll clear those during cleanup and re-run the full checks. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " if (b.dead) { blobs.splice(i, 1); continue; }\n b.r = Math.sqrt(b.v);", "new_string": " if (b.dead) { blobs.splice(i, 1); continue; }\n if (b.into && b.into.dead) b.into = null;\n b.r = Math.sqrt(b.v);" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Bash] { "command": "cd .scratch && node --jitless check.js ../index.html front.svg 2>&1 | grep -v \"Warning: disabling\"; xmllint --noout front.svg && echo \"svg well-formed\"; node --jitless simtest.js ../index.html 240 2>&1 | grep -v \"Warning: disabling\" | grep -E \"^(==|avgFree|[0-9]+s:|off t=(0|10|30)|after|on again)\"", "description": "Syntax check, SVG validation, final sim stats", "timeout": 300000 } [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 [system] thinking_tokens [system] thinking_tokens [assistant] That compound command was denied, as the double-`grep` one was earlier. These are my own test scripts in the working directory, so I'll split them into the simple forms that were accepted before. [tool Bash] { "command": "cd .scratch && node --jitless check.js ../index.html front.svg 2>&1 | grep -v \"Warning: disabling\"", "description": "Syntax-check page script and extract SVG", "timeout": 60000 } [tool result] script syntax OK, 532 lines svg bytes 8062 zsh:1: operation not permitted: [redacted:local-path] [tool Bash] { "command": "cd .scratch && xmllint --noout front.svg && echo \"svg well-formed\"", "description": "Validate SVG well-formedness", "timeout": 60000 } [tool error] Exit code 1 svg well-formed zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [assistant] Both pass. The "Exit code 1" comes from the shell's cwd-tracking file in the blocked `/tmp`; `xmllint` itself printed "svg well-formed". Now the final simulation run. [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 240 2>&1 | grep -v \"Warning: disabling\"", "description": "Run final simulation tests", "timeout": 300000 } [tool result] == seed 1 on: after preroll free=5 blobs=10 vol=11000 spawns=11 merges=12 splits=9 t= 0 free=5 [0.50^r42 0.47vr20 0.81^r17 0.28^r25 0.25^r8] t= 10 free=5 [0.80^r42 0.92vr17 0.69^r23 0.49^r18 0.60^r24] t= 20 free=7 [0.89vr41 0.89vr11 0.75^r33 0.76^r20 0.94vr7 0.94vr2 0.73^r11] t= 30 free=7 [0.93vr31 0.75^r43 0.76^r15 0.69^r2 0.73^r10 0.83vr14 0.86^r11] t= 40 free=5 [0.90vr42 0.76^r34 0.90vr15 0.68^r7 0.57^r16] t= 50 free=7 [0.63vr9 0.63^r39 0.80vr33 0.82vr7 0.54^r19 0.96vr16 0.72^r11] t= 60 free=9 [0.51vr38 0.59vr4 0.87vr16 0.78vr26 0.69vr17 0.39^r15 0.79vr6 0.45^r19 0.74^r11] t= 70 free=6 [0.80vr28 0.38vr31 0.51^r3 0.31^r13 0.70vr15 0.55vr16] t= 80 free=5 [0.62vr25 0.57vr20 0.44^r17 0.28vr15 0.77vr15] t= 90 free=7 [0.61vr25 0.23vr17 0.71vr15 0.26^r3 0.61vr15 0.28vr15 0.41vr15] t=100 free=5 [0.55vr29 0.18vr23 0.64vr15 0.36vr15 0.03^r8] t=110 free=4 [0.38vr29 0.17^r30 0.30vr15 0.60vr15] t=120 free=6 [0.32vr39 0.20^r30 0.55vr15 0.44vr16 0.26^r17 0.15vr3] t=130 free=5 [0.25vr28 0.65vr29 0.16vr15 0.44vr21 0.05^r11] t=140 free=5 [0.17vr30 0.61vr29 0.16^r15 0.40vr21 0.27vr13] t=150 free=5 [0.56vr29 0.42vr19 0.32vr6 0.30vr17 0.04^r10] t=160 free=6 [0.34vr3 0.62vr42 0.61vr13 0.29vr17 0.12^r14 0.51vr12] t=170 free=5 [0.38vr40 0.13vr15 0.58vr15 0.42vr5 0.07^r12] t=180 free=3 [0.14vr17 0.20^r4 0.12^r6] t=190 free=1 [0.38^r22] t=200 free=3 [0.91^r22 0.70^r22 0.49^r22] t=210 free=5 [0.62^r36 0.65^r12 0.37^r22 0.86vr16 0.82vr16] t=220 free=6 [0.85^r35 0.84vr14 0.40^r22 0.51^r13 0.58^r24 0.69^r15] t=230 free=6 [0.94vr28 0.83^r39 0.45^r21 0.75vr3 0.55^r15 0.70^r19] avgFree=5.4 tinyFrames=12383 vmax=2038 heightHist(bottom->top)=4,9,9,9,10,13,16,13,10,8 240s: merges=105 splits=92 spawns=25 maxFree=11 hRange=0.01..0.96 nan=false volDrift=-0.0 == seed 7 on: after preroll free=5 blobs=10 vol=11000 spawns=12 merges=12 splits=7 t= 0 free=5 [0.29^r9 0.41^r16 0.30^r30 0.28^r3 0.03^r3] t= 10 free=5 [0.75^r33 0.72^r3 0.91vr16 0.54^r15 0.72^r9] t= 20 free=6 [0.82vr4 0.54^r18 0.74vr38 0.40^r21 0.15^r19 0.91vr16] t= 30 free=7 [0.50^r40 0.69vr26 0.50^r5 0.47^r17 0.73^r10 0.75vr12 0.49^r4] t= 40 free=6 [0.91vr36 0.57^r30 0.88^r10 0.48^r16 0.24^r19 0.80^r15] t= 50 free=6 [0.73vr26 0.55^r31 0.82vr35 0.57^r4 0.55vr8 0.94vr14] t= 60 free=6 [0.65^r39 0.92vr32 0.54vr4 0.61vr7 0.81vr17 0.53^r14] t= 70 free=6 [0.72vr38 0.60vr30 0.87vr18 0.52vr15 0.42vr15 0.64vr9] t= 80 free=7 [0.85vr34 0.10vr24 0.11^r7 0.46vr16 0.62vr16 0.31vr15 0.89vr9] t= 90 free=5 [0.55vr32 0.26vr16 0.43vr16 0.82vr15 0.09^r13] t=100 free=5 [0.37vr32 0.13^r16 0.25vr16 0.66vr15 0.35^r20] t=110 free=4 [0.50vr15 0.87^r20 0.29vr15 0.04^r2] t=120 free=5 [0.65vr22 0.40^r37 0.32^r10 0.61^r13 0.31^r15] t=130 free=5 [0.76^r43 0.80^r7 0.92vr15 0.15^r18 0.86^r12] t=140 free=5 [0.08^r10 0.80vr25 0.63^r8 0.41^r15 0.63^r22] t=150 free=5 [0.41vr32 0.58vr9 0.58vr23 0.19^r20 0.23vr14] t=160 free=7 [0.59^r44 0.42vr19 0.42^r9 0.69^r15 0.53vr4 0.36^r5 0.50^r13] t=170 free=5 [0.70^r38 0.12vr19 0.45^r20 0.86vr21 0.63^r9] t=180 free=5 [0.78^r40 0.62^r20 0.75^r12 0.45^r22 0.92vr17] t=190 free=6 [0.93vr24 0.86^r37 0.44^r21 0.68^r27 0.68^r3 0.68^r12] t=200 free=7 [0.76^r21 0.85vr36 0.56^r29 0.55^r2 0.65^r23 0.96vr13 0.79^r8] t=210 free=8 [0.60^r40 0.74vr28 0.40^r15 0.88vr15 0.56vr6 0.37^r15 0.81vr12 0.62^r8] t=220 free=7 [0.23^r35 0.50vr37 0.48^r11 0.50^r9 0.44vr4 0.79vr15 0.66vr16] t=230 free=7 [0.62^r42 0.54vr16 0.25^r15 0.69vr17 0.38^r17 0.70vr13 0.49^r16] avgFree=5.7 tinyFrames=13783 vmax=2188 heightHist(bottom->top)=2,4,6,9,14,16,17,14,11,7 240s: merges=107 splits=109 spawns=19 maxFree=9 hRange=0.01..0.97 nan=false volDrift=-0.0 off t=0 heat=1.00 free=6 light=0.97 0.38/T0.00 0.34/T0.08 0.33/T1.00 0.19/T0.36 0.44/T0.00 0.29/T0.03 off t=10 heat=0.29 free=3 light=0.00 0.66/T0.00 0.23/T0.00 0.40/T0.00 off t=20 heat=0.08 free=2 light=0.00 0.29/T0.00 0.07/T0.04 off t=30 heat=0.02 free=0 light=0.00 off t=40 heat=0.01 free=0 light=0.00 off t=50 heat=0.00 free=0 light=0.00 after 60s off: free= 0 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 5 zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Merges, splits, and lamp-off/warm-up behavior all look good, but some r≈15 cold blobs in the same seed are descending too slowly (~3 px/s vs an expected 18+). I'll check their state next. [tool Write] { "file_path": "[workspace]/.scratch/dbg.js", "content": "const fs = require('fs');\nconst html = fs.readFileSync(process.argv[2], 'utf8');\nconst code = html.split('/*SIM-START*/')[1].split('/*SIM-END*/')[0];\nconst { createSim, BOT, SPAN } = new Function(code + '; return {createSim, BOT, SPAN};')();\nconst sim = createSim(1);\nfor (let i = 0; i < 60 * 112; i++) {\n sim.step(1 / 60);\n if (i % 150 === 0 && i > 60 * 96) {\n for (const b of sim.blobs) if (!b.fixed) console.log(`t=${(i / 60).toFixed(1)} id=${b.id} y=${b.y.toFixed(1)} vy=${b.vy.toFixed(2)} x=${b.x.toFixed(1)} vx=${b.vx.toFixed(2)} r=${b.r.toFixed(1)} T=${b.T.toFixed(3)} bf=${b.bf.toFixed(2)} into=${b.into && b.into.id} kin=${b.kin} from=${!!b.from}`);\n console.log('--');\n }\n}\n" } [tool result] The file [workspace]/.scratch/dbg.js has been updated successfully. (file state is current in your context — no need to Read it back) [tool Bash] { "command": "cd .scratch && node --jitless dbg.js ../index.html 2>&1 | grep -v \"Warning: disabling\"", "description": "Inspect slow-sinking r15 blobs", "timeout": 120000 } [tool result] t=97.5 id=63 y=276.9 vy=2.58 x=202.6 vx=1.25 r=29.2 T=0.000 bf=0.10 into=null kin=83 from=false t=97.5 id=78 y=434.3 vy=3.96 x=236.5 vx=-2.69 r=20.3 T=0.000 bf=0.16 into=null kin=71 from=false t=97.5 id=79 y=241.2 vy=3.17 x=180.2 vx=-0.45 r=14.9 T=0.000 bf=0.17 into=null kin=63 from=false t=97.5 id=82 y=418.1 vy=10.34 x=226.3 vx=5.74 r=11.3 T=0.000 bf=0.14 into=78 kin=63 from=false t=97.5 id=83 y=360.2 vy=2.31 x=176.0 vx=-0.98 r=14.9 T=0.000 bf=0.13 into=null kin=63 from=false -- t=100.0 id=63 y=283.3 vy=2.58 x=202.1 vx=-1.84 r=29.2 T=0.000 bf=0.10 into=null kin=83 from=false t=100.0 id=78 y=442.1 vy=3.79 x=226.8 vx=-3.63 r=23.3 T=0.000 bf=0.16 into=null kin=71 from=false t=100.0 id=79 y=249.1 vy=3.17 x=180.3 vx=0.38 r=14.9 T=0.000 bf=0.17 into=null kin=63 from=false t=100.0 id=83 y=366.0 vy=2.31 x=174.5 vx=-0.33 r=14.9 T=0.000 bf=0.13 into=null kin=63 from=false t=100.0 id=84 y=502.9 vy=-30.59 x=115.8 vx=5.75 r=7.9 T=1.000 bf=1.04 into=2 kin=1 from=true -- t=102.5 id=63 y=284.9 vy=3.08 x=191.6 vx=-4.14 r=32.5 T=0.000 bf=0.10 into=null kin=83 from=false t=102.5 id=78 y=451.2 vy=3.61 x=222.2 vx=0.37 r=23.3 T=0.010 bf=0.16 into=null kin=71 from=false t=102.5 id=79 y=271.6 vy=9.11 x=187.9 vx=1.50 r=3.8 T=0.000 bf=0.17 into=63 kin=63 from=false t=102.5 id=83 y=371.8 vy=2.31 x=173.8 vx=-0.34 r=14.9 T=0.000 bf=0.13 into=null kin=63 from=false t=102.5 id=84 y=458.8 vy=-1.34 x=154.1 vx=9.55 r=6.3 T=1.000 bf=1.04 into=2 kin=1 from=false -- t=105.0 id=63 y=338.0 vy=12.14 x=204.7 vx=1.80 r=29.1 T=0.000 bf=0.09 into=null kin=85 from=false t=105.0 id=78 y=459.5 vy=2.73 x=228.4 vx=4.17 r=23.3 T=0.190 bf=0.16 into=null kin=71 from=false t=105.0 id=83 y=377.5 vy=2.31 x=172.4 vx=-0.78 r=14.9 T=0.000 bf=0.13 into=null kin=63 from=false t=105.0 id=85 y=256.6 vy=-2.02 x=165.8 vx=-3.12 r=15.0 T=0.000 bf=0.11 into=null kin=63 from=false t=105.0 id=86 y=507.2 vy=-4.00 x=285.4 vx=0.00 r=2.4 T=1.000 bf=0.98 into=null kin=5 from=true -- t=107.5 id=63 y=351.6 vy=2.82 x=204.6 vx=-0.05 r=29.1 T=0.000 bf=0.09 into=null kin=85 from=false t=107.5 id=78 y=452.9 vy=-3.08 x=242.0 vx=-3.91 r=29.0 T=0.664 bf=0.16 into=null kin=71 from=false t=107.5 id=83 y=383.3 vy=2.31 x=170.1 vx=-1.04 r=14.9 T=0.000 bf=0.13 into=null kin=63 from=false t=107.5 id=85 y=259.4 vy=2.03 x=167.0 vx=2.19 r=15.0 T=0.000 bf=0.11 into=null kin=63 from=false t=107.5 id=86 y=434.6 vy=-5.02 x=245.4 vx=-13.99 r=8.0 T=1.000 bf=0.98 into=78 kin=5 from=false -- t=110.0 id=63 y=357.8 vy=2.35 x=204.2 vx=-0.89 r=29.1 T=0.000 bf=0.09 into=null kin=85 from=false t=110.0 id=78 y=446.1 vy=-2.30 x=232.6 vx=-4.22 r=30.1 T=0.818 bf=0.16 into=null kin=71 from=false t=110.0 id=83 y=389.1 vy=2.31 x=167.6 vx=-0.83 r=14.9 T=0.000 bf=0.13 into=null kin=63 from=false t=110.0 id=85 y=264.6 vy=2.09 x=174.0 vx=3.22 r=15.0 T=0.000 bf=0.11 into=null kin=63 from=false -- zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Found the bug: split code multiplies parent `bf` by 0.9 and child `bf` by 1.12, compounding across generations until buoyancy decays to near zero and blobs crawl. I'll fix this by re-randomizing `bf` within a fixed range on each split instead. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " c.bf = b.bf * 1.12; b.bf *= 0.9; // different pace so the halves drift apart", "new_string": " const pace = range(0.9, 1.1); // halves get different paces so they drift apart\n c.bf = pace * 1.1; b.bf = pace * 0.9;" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 240 2>&1 | grep -v \"Warning: disabling\"", "description": "Re-run simulation tests after buoyancy fix", "timeout": 300000 } [tool result] == seed 1 on: after preroll free=6 blobs=11 vol=11000 spawns=10 merges=11 splits=10 t= 0 free=6 [0.64^r37 0.62^r14 0.71^r6 0.83vr30 0.57vr3 0.78vr10] t= 10 free=5 [0.81vr30 0.69^r33 0.45^r17 0.67vr3 0.91vr24] t= 20 free=6 [0.28^r38 0.67vr32 0.31^r25 0.29^r5 0.48^r19 0.47vr10] t= 30 free=6 [0.41^r42 0.48vr39 0.36^r12 0.64vr16 0.05^r11 0.40vr11] t= 40 free=5 [0.92^r33 0.19vr35 0.80^r28 0.35vr15 0.04^r9] t= 50 free=5 [0.77vr27 0.57vr33 0.60vr3 0.14^r6 0.58vr6] t= 60 free=4 [0.25vr27 0.20vr15 0.12^r8 0.15^r4] t= 70 free=2 [0.55^r23 0.11^r5] t= 80 free=4 [0.91vr22 0.89vr4 0.57^r22 0.33^r22] t= 90 free=4 [0.75^r31 0.52^r23 0.90vr17 0.58^r14] t=100 free=7 [0.54^r40 0.59^r3 0.85vr3 0.87vr23 0.29^r21 0.79^r15 0.48^r11] t=110 free=6 [0.52^r40 0.90vr30 0.41^r20 0.92^r3 0.72vr20 0.75^r11] t=120 free=5 [0.76^r40 0.57vr38 0.59^r8 0.47vr3 0.96vr16] t=130 free=5 [0.84vr40 0.75^r4 0.12vr15 0.91vr15 0.65vr16] t=140 free=5 [0.08vr26 0.35vr26 0.53vr15 0.37vr6 0.13vr11] t=150 free=2 [0.27^r38 0.06^r12] t=160 free=2 [0.73^r38 0.47^r26] t=170 free=6 [0.83vr39 0.81^r14 0.73^r24 0.40^r22 0.73vr12 0.92vr11] t=180 free=6 [0.83^r12 0.89vr40 0.60^r31 0.89^r5 0.62^r9 0.74vr16] t=190 free=5 [0.81^r39 0.89vr26 0.28^r21 0.56^r24 0.65^r15] t=200 free=5 [0.89vr38 0.75^r6 0.74^r38 0.59^r19 0.88^r15] t=210 free=9 [0.74vr40 0.63^r27 0.79vr14 0.54^r26 0.84vr4 0.80^r6 0.82vr8 0.78vr8 0.60^r9] t=220 free=7 [0.16vr32 0.68vr34 0.06vr9 0.48vr15 0.55vr15 0.38vr15 0.92vr15] t=230 free=4 [0.17vr30 0.15^r10 0.44vr15 0.19^r16] avgFree=5.0 tinyFrames=13460 vmax=2208 heightHist(bottom->top)=5,7,9,7,8,11,15,16,15,6 240s: merges=116 splits=97 spawns=27 maxFree=9 hRange=0.01..0.96 nan=false volDrift=-0.0 == seed 7 on: after preroll free=3 blobs=8 vol=11000 spawns=11 merges=14 splits=8 t= 0 free=3 [0.12vr15 0.38^r21 0.26^r21] t= 10 free=4 [0.89^r21 0.77^r21 0.34^r21 0.07^r12] t= 20 free=5 [0.86vr33 0.84^r5 0.71^r23 0.28^r22 0.68vr10] t= 30 free=6 [0.62vr23 0.73vr23 0.60^r31 0.32^r21 0.75vr4 0.58^r7] t= 40 free=7 [0.14vr32 0.60vr31 0.65vr11 0.24^r18 0.36vr10 0.37vr19 0.60vr3] t= 50 free=6 [0.11^r27 0.39vr32 0.40^r18 0.06^r14 0.16^r21 0.32^r12] t= 60 free=3 [0.56^r28 0.27vr16 0.54^r8] t= 70 free=5 [0.91vr29 0.93^r5 0.49^r20 0.24^r16 0.65^r16] t= 80 free=5 [0.88vr31 0.62^r3 0.55vr24 0.68vr16 0.11^r8] t= 90 free=5 [0.30vr37 0.47vr15 0.37vr15 0.07vr12 0.36vr11] t=100 free=2 [0.15^r7 0.05^r5] t=110 free=4 [0.77^r16 0.28^r9 0.63^r15 0.04^r5] t=120 free=3 [0.79vr22 0.66^r24 0.11^r12] t=130 free=4 [0.80vr32 0.81^r4 0.53^r22 0.18^r21] t=140 free=5 [0.89vr28 0.69^r18 0.76^r30 0.74vr6 0.04^r8] t=150 free=4 [0.69vr34 0.74vr7 0.40vr19 0.50vr25] t=160 free=6 [0.48vr27 0.24vr32 0.14^r15 0.16vr15 0.54vr15 0.35vr14] t=170 free=2 [0.06^r4 0.08^r11] t=180 free=3 [0.71^r22 0.55^r22 0.36^r22] t=190 free=5 [0.77vr31 0.93vr5 0.56^r21 0.15^r4 0.94vr21] t=200 free=4 [0.61vr36 0.76vr18 0.32vr15 0.22^r22] t=210 free=6 [0.30vr43 0.37vr20 0.46^r14 0.43vr3 0.05^r9 0.45vr13] t=220 free=4 [0.01^r2 0.87^r14 0.11vr10 0.09^r13] t=230 free=2 [0.64vr14 0.19^r15] avgFree=4.2 tinyFrames=10155 vmax=2231 heightHist(bottom->top)=8,13,11,11,11,10,10,12,9,5 240s: merges=82 splits=52 spawns=42 maxFree=7 hRange=0.01..0.96 nan=false volDrift=0.0 off t=0 heat=1.00 free=6 light=0.97 0.37/T0.03 0.26/T0.00 0.20/T0.50 0.23/T0.00 0.40/T0.58 0.49/T0.00 off t=10 heat=0.29 free=1 light=0.00 0.18/T0.00 off t=20 heat=0.08 free=0 light=0.00 off t=30 heat=0.02 free=0 light=0.00 off t=40 heat=0.01 free=0 light=0.00 off t=50 heat=0.00 free=0 light=0.00 after 60s off: free= 0 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 6 zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Heights are evenly distributed, volume is conserved, no NaNs, and the lamp settles/respawns correctly, though blob count occasionally dips to 2. I'll tune spawning to trigger sooner when the lamp looks sparse. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " if (on && time > nextSpawn && free < MAXFREE - 3 && spawn()) nextSpawn = time + range(3, 7);", "new_string": " if (on && time > nextSpawn && free < MAXFREE - 3 && spawn()) nextSpawn = time + (free < 3 ? range(1.5, 3) : range(3, 7));" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Bash] { "command": "cd .scratch && node --jitless render.js ../index.html sheet3.png 11 2>&1 | grep -v \"Warning: disabling\"", "description": "Re-render contact sheet with final sim", "timeout": 300000 } [tool result] start free= 6 heat= 1.00 light= 1.00 +25s free= 8 heat= 1.00 light= 1.00 off+70s free= 0 heat= 0.00 light= 0.00 on+12s free= 2 heat= 0.97 light= 1.00 on+24s free= 4 heat= 1.00 light= 1.00 wrote sheet3.png 1607x630 zsh:1: operation not permitted: [redacted:local-path] [system] status [tool Read] { "file_path": "[workspace]/.scratch/sheet3.png" } [tool result] [image] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] Looks good overall, but small red specks remain inside merged blobs because the temperature average weights every ball equally instead of by volume. I'll fix the shader to weight the temperature average by each ball's volume. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " // Fill the shader uniform arrays: A = (x, y, 1/reach^2, temp), B = (1/sx^2, 1/sy^2).\n sim.pack = (A, B) => {\n let n = 0;\n for (const b of blobs) {\n if (n >= CAP) break;\n const reach = b.r * KR, i = n * 4;\n A[i] = b.x; A[i + 1] = b.y; A[i + 2] = 1 / (reach * reach); A[i + 3] = b.T;\n B[i] = b.st; B[i + 1] = 1 / (b.st * b.st);\n n++;\n }\n return n;\n };", "new_string": " // Fill the shader uniform arrays: A = (x, y, 1/reach^2, temp), B = (1/sx^2, 1/sy^2, volume weight).\n sim.pack = (A, B) => {\n let n = 0;\n for (const b of blobs) {\n if (n >= CAP) break;\n const reach = b.r * KR, i = n * 4;\n A[i] = b.x; A[i + 1] = b.y; A[i + 2] = 1 / (reach * reach); A[i + 3] = b.T;\n B[i] = b.st; B[i + 1] = 1 / (b.st * b.st); B[i + 2] = b.v / 1000;\n n++;\n }\n return n;\n };" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " // metaball field: sum of (1-q)^3 kernels, plus its gradient and a temperature average\n float F = 0., Tw = 0.; vec2 g = vec2(0.);\n for (int i = 0; i < N; i++) {\n if (i >= uN) break;\n vec4 a = uA[i]; vec4 b = uB[i];\n vec2 d = p - a.xy;\n float q = (d.x * d.x * b.x + d.y * d.y * b.y) * a.z;\n if (q < 1.) {\n float m = 1. - q;\n F += m * m * m; Tw += m * m * m * a.w;\n g -= 6. * m * m * a.z * vec2(d.x * b.x, d.y * b.y);\n }\n }", "new_string": " // metaball field: sum of (1-q)^3 kernels, plus its gradient and a volume-weighted temperature\n float F = 0., Tw = 0., Ww = 0.; vec2 g = vec2(0.);\n for (int i = 0; i < N; i++) {\n if (i >= uN) break;\n vec4 a = uA[i]; vec4 b = uB[i];\n vec2 d = p - a.xy;\n float q = (d.x * d.x * b.x + d.y * d.y * b.y) * a.z;\n if (q < 1.) {\n float m = 1. - q, k = m * m * m;\n F += k; Tw += k * b.z * a.w; Ww += k * b.z;\n g -= 6. * m * m * a.z * vec2(d.x * b.x, d.y * b.y);\n }\n }" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " float Tm = Tw / max(F, 1e-4);", "new_string": " float Tm = Tw / max(Ww, 1e-4);" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " let F = 0, Tw = 0, gx = 0, gy = 0;\n for (let b = 0; b < n; b++) {\n const q4 = b * 4, dx = x - A[q4], dy = y - A[q4 + 1];\n const q = (dx * dx * B[q4] + dy * dy * B[q4 + 1]) * A[q4 + 2];\n if (q < 1) {\n const m = 1 - q, f = m * m * m;\n F += f; Tw += f * A[q4 + 3];", "new_string": " let F = 0, Tw = 0, Ww = 0, gx = 0, gy = 0;\n for (let b = 0; b < n; b++) {\n const q4 = b * 4, dx = x - A[q4], dy = y - A[q4 + 1];\n const q = (dx * dx * B[q4] + dy * dy * B[q4 + 1]) * A[q4 + 2];\n if (q < 1) {\n const m = 1 - q, f = m * m * m;\n F += f; Tw += f * B[q4 + 2] * A[q4 + 3]; Ww += f * B[q4 + 2];" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Edit] { "replace_all": false, "file_path": "[workspace]/index.html", "old_string": " const tm = ss(0.3, 0.95, Tw / Math.max(F, 1e-4));", "new_string": " const tm = ss(0.3, 0.95, Tw / Math.max(Ww, 1e-4));" } [tool result] The file [workspace]/index.html has been updated successfully. [tool Bash] { "command": "cd .scratch && node --jitless render.js ../index.html sheet4.png 11 2>&1 | grep -v \"Warning: disabling\"", "description": "Re-render contact sheet after temperature weighting fix", "timeout": 300000 } [tool result] start free= 6 heat= 1.00 light= 1.00 +25s free= 8 heat= 1.00 light= 1.00 off+70s free= 0 heat= 0.00 light= 0.00 on+12s free= 2 heat= 0.97 light= 1.00 on+24s free= 4 heat= 1.00 light= 1.00 wrote sheet4.png 1607x630 zsh:1: operation not permitted: [redacted:local-path] [system] status [tool Read] { "file_path": "[workspace]/.scratch/sheet4.png" } [tool result] [image] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] The specks are fixed and the temperature gradient now blends smoothly from red to orange. Before wrapping up, I'll verify the script's syntax, run a final simulation, and check for any code that might trigger external requests. [tool Bash] { "command": "cd .scratch && node --jitless check.js ../index.html front.svg 2>&1 | grep -v \"Warning: disabling\"", "description": "Final syntax check of page script", "timeout": 60000 } [tool Bash] { "command": "cd .scratch && node --jitless simtest.js ../index.html 120 2>&1 | grep -v \"Warning: disabling\"", "description": "Final short simulation run", "timeout": 300000 } [tool result] script syntax OK, 533 lines svg bytes 8062 zsh:1: operation not permitted: [redacted:local-path] [tool result] == seed 1 on: after preroll free=7 blobs=12 vol=11000 spawns=13 merges=15 splits=12 t= 0 free=7 [0.71vr35 0.83vr2 0.37vr17 0.22^r8 0.48vr16 0.59vr16 0.92vr15] t= 10 free=4 [0.32vr32 0.02^r5 0.43vr15 0.14^r13] t= 20 free=1 [0.24^r24] t= 30 free=4 [0.75^r19 0.64^r15 0.61^r21 0.09^r13] t= 40 free=4 [0.89vr25 0.25^r20 0.76vr20 0.21^r20] t= 50 free=4 [0.60^r36 0.40^r23 0.45vr16 0.86vr15] t= 60 free=5 [0.91vr31 0.79^r33 0.33^r22 0.74vr7 0.64^r16] t= 70 free=6 [0.73vr34 0.52^r35 0.86vr15 0.76^r9 0.11^r15 0.45^r11] t= 80 free=7 [0.48vr42 0.65^r28 0.23vr16 0.28^r21 0.48^r5 0.61vr17 0.29vr15] t= 90 free=5 [0.10vr27 0.91vr28 0.37vr19 0.01^r5 0.39vr15] t=100 free=4 [0.49vr32 0.51^r6 0.10^r5 0.43vr11] t=110 free=5 [0.04^r16 0.41vr23 0.38^r14 0.16^r17 0.22^r13] avgFree=4.6 tinyFrames=6180 vmax=2011 heightHist(bottom->top)=8,10,10,13,16,12,11,10,6,5 120s: merges=53 splits=35 spawns=21 maxFree=8 hRange=0.01..0.94 nan=false volDrift=-0.0 == seed 7 on: after preroll free=3 blobs=8 vol=11000 spawns=15 merges=14 splits=4 t= 0 free=3 [0.07^r8 0.48^r21 0.22^r2] t= 10 free=4 [0.95vr21 0.39^r22 0.23^r20 0.10^r11] t= 20 free=6 [0.86^r25 0.72^r22 0.41^r9 0.17^r4 0.64vr3 0.64^r14] t= 30 free=4 [0.59vr30 0.76vr21 0.78vr5 0.13^r3] t= 40 free=4 [0.36vr38 0.24vr3 0.59vr15 0.39^r11] t= 50 free=3 [0.44^r30 0.28^r24 0.18^r18] t= 60 free=4 [0.92^r30 0.79^r31 0.45^r21 0.23^r21] t= 70 free=6 [0.77^r41 0.75^r6 0.89vr29 0.91^r5 0.10^r12 0.70^r11] t= 80 free=5 [0.88vr32 0.65vr29 0.47vr16 0.64^r23 0.84vr10] t= 90 free=5 [0.46vr4 0.55vr42 0.18vr15 0.65vr14 0.30vr15] t=100 free=3 [0.01^r4 0.20vr26 0.25^r9] t=110 free=5 [0.54^r27 0.15^r4 0.24^r15 0.11^r14 0.38^r15] avgFree=4.4 tinyFrames=6297 vmax=1866 heightHist(bottom->top)=7,12,9,10,9,11,13,12,11,6 120s: merges=43 splits=31 spawns=22 maxFree=8 hRange=0.01..0.96 nan=false volDrift=-0.0 off t=0 heat=1.00 free=3 light=0.97 0.64/T1.00 0.78/T1.00 0.31/T1.00 off t=10 heat=0.29 free=2 light=0.00 0.82/T0.57 0.77/T0.02 off t=20 heat=0.08 free=1 light=0.00 0.63/T0.17 off t=30 heat=0.02 free=1 light=0.00 0.10/T0.05 off t=40 heat=0.01 free=0 light=0.00 off t=50 heat=0.00 free=0 light=0.00 after 60s off: free= 0 heat 0.0006 on again: first spawn after 7.6 s; free after 40s = 6 zsh:1: operation not permitted: [redacted:local-path] [tool Grep] { "pattern": "https?:|//[a-z0-9.-]+\\.[a-z]{2,}|@import|url\\(| 409: 410: 411: 412: 414: 415: 417: 418: [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] The only `url(` matches are internal SVG gradient refs, and there's no http, fetch, links, images, or src= — so the file makes no external requests. Now I'll check my scratch directory contents before cleaning it up. [tool Bash] { "command": "ls -la .scratch .scratch/home .scratch/tmp .scratch/prof 2>&1 | head -40", "description": "List scratch directory contents before removal" } [tool error] Exit code 1 .scratch: total 3544 drwxr-xr-x@ 15 [redacted:username] wheel 480 Oct 28 08:22 . drwx------@ 5 [redacted:username] wheel 160 Oct 28 08:22 .. -rw-r--r--@ 1 [redacted:username] wheel 868 Oct 28 08:20 check.js -rw-r--r--@ 1 [redacted:username] wheel 693 Oct 28 08:21 dbg.js -rw-r--r--@ 1 [redacted:username] wheel 357 Oct 28 08:21 frag.js -rw-r--r--@ 1 [redacted:username] wheel 8155 Oct 28 08:22 front.svg drwxr-xr-x@ 2 [redacted:username] wheel 64 Oct 28 08:16 home drwx------@ 2 [redacted:username] wheel 64 Oct 28 08:16 prof -rw-r--r--@ 1 [redacted:username] wheel 3647 Oct 28 08:20 render.js -rw-r--r--@ 1 [redacted:username] wheel 407978 Oct 28 08:18 sheet.png -rw-r--r--@ 1 [redacted:username] wheel 474300 Oct 28 08:20 sheet2.png -rw-r--r--@ 1 [redacted:username] wheel 451843 Oct 28 08:22 sheet3.png -rw-r--r--@ 1 [redacted:username] wheel 445870 Oct 28 08:22 sheet4.png -rw-r--r--@ 1 [redacted:username] wheel 2805 Oct 28 08:14 simtest.js drwxr-xr-x@ 2 [redacted:username] wheel 64 Oct 28 08:16 tmp .scratch/home: total 0 drwxr-xr-x@ 2 [redacted:username] wheel 64 Oct 28 08:16 . drwxr-xr-x@ 15 [redacted:username] wheel 480 Oct 28 08:22 .. .scratch/prof: total 0 drwx------@ 2 [redacted:username] wheel 64 Oct 28 08:16 . drwxr-xr-x@ 15 [redacted:username] wheel 480 Oct 28 08:22 .. .scratch/tmp: total 0 drwxr-xr-x@ 2 [redacted:username] wheel 64 Oct 28 08:16 . drwxr-xr-x@ 15 [redacted:username] wheel 480 Oct 28 08:22 .. zsh:1: operation not permitted: [redacted:local-path] [system] status [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [system] thinking_tokens [thinking] I'll delete this since it only contains files I created—test scripts, contact sheets, the extracted SVG, and empty Chrome-attempt folders—leaving just `index.html` behind. [tool Bash] { "command": "rm -r .scratch && ls -la", "description": "Remove scratch directory I created" } [tool error] Exit code 1 total 64 drwx------@ 4 [redacted:username] wheel 128 Oct 28 08:22 . drwx------@ 6 [redacted:username] wheel 192 Oct 28 08:21 .. drwxr-xr-x@ 3 [redacted:username] wheel 96 Oct 28 08:07 .claude -rw-r--r--@ 1 [redacted:username] wheel 30863 Oct 28 08:22 index.html zsh:1: operation not permitted: [redacted:local-path] [system] status [assistant] I built `index.html`, a single 31 KB file, but I couldn't open it in a browser here, so I never saw the full page or measured the frame rate. Headless Chrome wouldn't start in this sandbox. It needs my real Chrome profile and the real user temp folder, and I didn't try to get around that. I checked the parts I could in Node: - **Simulation:** I ran 4-minute simulations on several seeds. Volume is conserved, nothing goes NaN, and blobs travel the full height of the glass. - **Lamp off and on:** with the lamp off, all the wax is back in the pool in about 20 seconds. Switching on again, the first blob lifts off after about 8 seconds. - **Wax rendering:** the page's fallback renderer produced images of the wax from the real simulation. They show egg-shaped rising blobs, necks as blobs merge, a lumpy pool, and a dark cold state. - **Page code:** the page script passes a syntax check and the generated SVG is well-formed. There are no external requests of any kind. I couldn't run these: - **The WebGL shader on a real GPU.** I read the generated GLSL line by line, and if it fails to compile the page switches to the CPU renderer. - **The glass, cap, base, desk and glow layout, and the switch.** I haven't seen any of these rendered. - **Frame rate.** The wax is drawn by a small fragment shader and the physics is a few dozen balls, so I expect 60 fps, but that is an expectation, not a measurement. If a device falls below about 46 fps, the page lowers the wax resolution on its own. ## How it works - **Scene:** a chrome-and-glass lamp stands on a wood desk. It's built from inline SVG, CSS and one canvas for the wax, scaled to fit the screen height. It handles phone portrait and landscape, notches and `dvh` units. - **Rising and sinking:** each blob has a temperature. It heats just above the pool, cools under the cap, and rises or sinks by buoyancy. Bigger blobs hold their heat longer. - **Merge and split:** touching blobs pour into each other, with the smaller one flowing into the larger. Oversized or random blobs bud off a child that stretches away and pinches off. The pool is a row of anchored balls, so blobs ooze out of it and sink back in. - **Switch:** it's a real `