Animated loader · ling-3.1-flash
Output generated Cost / run $0.0246 Runtime 601.3s
Prompt for this run
Build a looping loading animation using the provided GSAP library. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `gsap.min.js` (global `gsap`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - On a dark background, show a group of rounded geometric shapes that smoothly change scale, position, and corner radius, plus a row of five dots with staggered motion or opacity. - Coordinate both elements using a GSAP timeline with smooth easing. The full sequence lasts 3 to 6 seconds and repeats without an abrupt jump or a growing number of animation instances. - Provide Pause/Resume and Restart controls. Pause freezes the current timeline position; Resume continues from it; Restart returns to the beginning. - Center the composition and keep it visible at the supplied viewport. Use HTML/CSS or inline SVG; no external assets or paid GSAP plugins are available. - Choose the palette and detailed choreography freely. No backend loading operation is required. Verify: Sample the timeline at several moments to inspect shape changes, staggered dot motion, and smooth transitions. Pause and resume to check that animation continues from the paused state, then use Restart and check the starting composition.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
METRICS
Transcript · 103 messages
Build a looping loading animation using the provided GSAP library. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `gsap.min.js` (global `gsap`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - On a dark background, show a group of rounded geometric shapes that smoothly change scale, position, and corner radius, plus a row of five dots with staggered motion or opacity. - Coordinate both elements using a GSAP timeline with smooth easing. The full sequence lasts 3 to 6 seconds and repeats without an abrupt jump or a growing number of animation instances. - Provide Pause/Resume and Restart controls. Pause freezes the current timeline position; Resume continues from it; Restart returns to the beginning. - Center the composition and keep it visible at the supplied viewport. Use HTML/CSS or inline SVG; no external assets or paid GSAP plugins are available. - Choose the palette and detailed choreography freely. No backend loading operation is required. Verify: Sample the timeline at several moments to inspect shape changes, staggered dot motion, and smooth transitions. Pause and resume to check that animation continues from the paused state, then use Restart and check the starting composition.
I'll build the animation and verify it in the browser.
/tmp/job-yc0wpi/index.html (11187 bytes)Successfully wrote to /tmp/job-yc0wpi/index.html
thinking
Need inspect. Potential issue: timeline duration. Shape durations: last starts DURATION/2 + index*.04 = 2.2+.12 and dur 2.2 => end 4.52. Dots last: 2.2+.88=3.08 +2.2=5.28. Thus timeline duration 5.28, within 3-6. Fine. But requirement full sequence 3-6. Yes. However final set clearProps then set values at end, weird. At end, clearProps removes transforms and borderRadius, then set start. This means during last tiny instant? Sets at same end time, no visual abrupt because end positions differ from start, then jump at loop boundary from end to start. Requirement repeats without abrupt jump. This is a jump! They say full sequence repeats without abrupt jump. Need choreography end should equal start, or use yoyo? Current end differs, then at timeline end set start, causing abrupt jump. Need fix. We can design each shape path returns to start at end. Could have three keyframes: start -> mid -> start? But "smoothly change scale, position, corner radius". Yes. Better timeline shape: set start, to mid at 0 dur 2.2, to start at 2.2 dur 2.2. End equals start, seamless. Dots similarly start->peak->start. Great. Remove final sets. Also timeline duration: shapes last end 4.52 due stagger, dots 5.28. Fine. But if shape end start, no jump. Dots end start. At repeat, exact same. Need adjust. Also use timeline.set with function values syntax perhaps okay but unnecessary. Let's edit.
{"edits":[{"newText":" // Shapes travel through a midpoint and return to their exact starting\n // values, so the loop seam is seaCould not find edits[1] in /tmp/job-yc0wpi/index.html. The oldText must match exactly including all whitespace and newlines.
thinking
First edit applied? Tool says could not find edits[1], likely atomic? It may have applied first? Need read relevant.
{"limit":180,"offset":190,"path":"/tmp/job-yc0wpi/index.html"}<p class="subtitle">A seamless GSAP loading loop with motion-matched geometry.</p> <section class="stage" aria-label="Loading animation"> <div class="shape-field"> <div class="shape" id="shape-a"></div> <div class="shape" id="shape-b"></div> <div class="shape" id="shape-c"></div> <div class="shape" id="shape-d"></div> </div> </section> <section class="dots" aria-label="Loading progress dots"> <span class="dot"></span> <span class="dot"></span> <span class="dot"></span> <span class="dot"></span> <span class="dot"></span> </section> <div class="controls"> <button id="pause-btn" type="button">Pause</button> <button id="restart-btn" type="button">Restart</button> </div> <p id="status" class="status">Loading</p> </main> <script src="gsap.min.js"></script> <script> (function () { const pauseBtn = document.getElementById("pause-btn"); const restartBtn = document.getElementById("restart-btn"); const statusEl = document.getElementById("status"); const dots = gsap.utils.toArray(".dot"); const DURATION = 4.4; const DOT_OFFSET = 0.22; const shapeConfig = { a: { element: document.getElementById("shape-a"), start: { x: -140, y: -18, scale: 0.9, radius: "30%" }, mid: { x: 20, y: -54, scale: 1.28, radius: "50%" }, end: { x: 145, y: 18, scale: 0.78, radius: "22%" } }, b: { element: document.getElementById("shape-b"), start: { x: -112, y: 42, scale: 1.16, radius: "50%" }, mid: { x: -8, y: 30, scale: 0.82, radius: "26%" }, end: { x: 118, y: -38, scale: 1.22, radius: "46%" } }, c: { element: document.getElementById("shape-c"), start: { x: -38, y: 58, scale: 0.72, radius: "24%" }, mid: { x: 70, y: 8, scale: 1.18, radius: "50%" }, end: { x: -125, y: -42, scale: 1.02, radius: "34%" } }, d: { element: document.getElementById("shape-d"), start: { x: 62, y: -62, scale: 1.08, radius: "44%" }, mid: { x: -70, y: -12, scale: 0.76, radius: "20%" }, end: { x: 45, y: 58, scale: 1.24, radius: "50%" } } }; const dotColors = ["#22d3ee", "#a78bfa", "#f472b6", "#fbbf24", "#34d399"]; const dotStart = { y: 0, scale: 0.82, opacity: 0.42 }; const dotPeak = { y: -18, scale: 1.45, opacity: 1 }; // Keep the field visually centered despite absolute-positioned shapes. gsap.set(Object.values(shapeConfig).map(item => item.element), { xPercent: -50, yPercent: -50 }); const timeline = gsap.timeline({ paused: false, repeat: -1, repeatDelay: 0, defaults: { ease: "power2.inOut", immediateRender: true } }); // Shapes travel through a midpoint, morphing scale and corner radius. Object.values(shapeConfig).forEach((shape, index) => { const element = shape.element; const { start, mid, end } = shape; timeline.set(element, { x: start.x, y: start.y, scale: start.scale, borderRadius: start.radius, opacity: 1 }, 0); timeline.to(element, { x: mid.x, y: mid.y, scale: mid.scale, borderRadius: mid.radius, duration: DURATION / 2, ease: "power1.inOut" }, index * 0.04); timeline.to(element, { x: end.x, y: end.y, scale: end.scale, borderRadius: end.radius, duration: DURATION / 2, ease: "power1.inOut" }, DURATION / 2 + index * 0.04); }); // Five dots pulse and drift with staggered timing, then return to their // exact initial values so the next repeat is seamless. dots.forEach((dot, index) => { timeline.set(dot, { x: 0, y: dotStart.y, scale: dotStart.scale, opacity: dotStart.opacity, backgroundColor: dotColors[index] }, 0); timeline.to(dot, { y: dotPeak.y, scale: dotPeak.scale, opacity: dotPeak.opacity, duration: DURATION / 2, ease: "sine.inOut" }, index * DOT_OFFSET); timeline.to(dot, { y: dotStart.y, scale: dotStart.scale, opacity: dotStart.opacity, duration: DURATION / 2, ease: "sine.inOut" }, DURATION / 2 + index * DOT_OFFSET); }); // The final shape state is only a midpoint on the loop path; the explicit // set at time zero restores the starting composition without a jump. timeline.set(Object.values(shapeConfig).map(item => item.element), { clearProps: "x,y,scale,borderRadius" }); timeline.set(Object.values(shapeConfig).map(item => item.element), { x: (_, i) => Object.values(shapeConfig)[i].start.x, y: (_, i) => Object.values(shapeConfig)[i].start.y, scale: (_, i) => Object.values(shapeConfig)[i].start.scale, borderRadius: (_, i) => Object.values(shapeConfig)[i].start.radius, opacity: 1 }); timeline.set(dots, { x: 0, y: dotStart.y, scale: dotStart.scale, opacity: dotStart.opacity }); function updateStatus() { if (timeline.paused()) { statusEl.textContent = "Paused"; pauseBtn.textContent = "Resume"; } else { statusEl.textContent = timeline.time() === 0 ? "Loading" : "Loading"; pauseBtn.textContent = "Pause"; } } pauseBtn.addEventListener("click", () => { if (timeline.paused()) { timeline.play(); } else { timeline.pause(); } updateStatus(); }); restartBtn.addEventListener("click", () => { timeline.restart(); updateStatus(); [34 more lines in file. Use offset=370 to continue.]
thinking
First edit failed entirely due second invalid. Need make edits separately carefully. We can rewrite whole file maybe easier. But use edit. First shape block exact. Then remove final block. Also shape config end unused can leave but perhaps remove. Need ensure loop seamless. Let's edit shape block.
{"edits":[{"newText":" // Shapes travel through a midpoint and return to their exact starting\n // values, so the loop seam is seaSuccessfully replaced 1 block(s) in /tmp/job-yc0wpi/index.html.
thinking
Now remove final block exact from read.
{"edits":[{"newText":" updateStatus();","oldText":" // The final shape state is only a midpoint on the loop path; the explicit\n Could not find the exact text in /tmp/job-yc0wpi/index.html. The old text must match exactly including all whitespace and newlines.
thinking
Why? Maybe indentation or comment differs? Read exact around.
{"limit":70,"offset":300,"path":"/tmp/job-yc0wpi/index.html"}}); // Five dots pulse and drift with staggered timing, then return to their // exact initial values so the next repeat is seamless. dots.forEach((dot, index) => { timeline.set(dot, { x: 0, y: dotStart.y, scale: dotStart.scale, opacity: dotStart.opacity, backgroundColor: dotColors[index] }, 0); timeline.to(dot, { y: dotPeak.y, scale: dotPeak.scale, opacity: dotPeak.opacity, duration: DURATION / 2, ease: "sine.inOut" }, index * DOT_OFFSET); timeline.to(dot, { y: dotStart.y, scale: dotStart.scale, opacity: dotStart.opacity, duration: DURATION / 2, ease: "sine.inOut" }, DURATION / 2 + index * DOT_OFFSET); }); // The final shape state is only a midpoint on the loop path; the explicit // set at time zero restores the starting composition without a jump. timeline.set(Object.values(shapeConfig).map(item => item.element), { clearProps: "x,y,scale,borderRadius" }); timeline.set(Object.values(shapeConfig).map(item => item.element), { x: (_, i) => Object.values(shapeConfig)[i].start.x, y: (_, i) => Object.values(shapeConfig)[i].start.y, scale: (_, i) => Object.values(shapeConfig)[i].start.scale, borderRadius: (_, i) => Object.values(shapeConfig)[i].start.radius, opacity: 1 }); timeline.set(dots, { x: 0, y: dotStart.y, scale: dotStart.scale, opacity: dotStart.opacity }); function updateStatus() { if (timeline.paused()) { statusEl.textContent = "Paused"; pauseBtn.textContent = "Resume"; } else { statusEl.textContent = timeline.time() === 0 ? "Loading" : "Loading"; pauseBtn.textContent = "Pause"; } } pauseBtn.addEventListener("click", () => { if (timeline.paused()) { timeline.play(); } else { timeline.pause(); } updateStatus(); }); restartBtn.addEventListener("click", () => { timeline.restart(); [35 more lines in file. Use offset=370 to continue.]
thinking
I omitted "function updateStatus" in oldText? My old ended at updateStatus(); but there is function declaration between final set and call. Right. Need replace from comment through timeline.set dots only, not updateStatus.
{"edits":[{"newText":" function updateStatus() {","oldText":" // The final shape state is only a midpoint on the loop path; the exSuccessfully replaced 1 block(s) in /tmp/job-yc0wpi/index.html.
thinking
Now timeline duration 5.28. Shapes return start. Dots return start. But potential issue with timeline repeat and immediateRender: timeline.set at time 0 with immediateRender true. On repeat, GSAP renders start set. Good. However requirement "smoothly change scale, position, and corner radius" yes. "group of rounded geometric shapes" four divs. "row of five dots with staggered motion or opacity" yes. "Coordinate both elements using GSAP timeline with smooth easing." yes. Need browser inspect. Use browser action maybe screenshot and inspect. First reload.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
No images support. Need inspect DOM/console perhaps action inspect.
{"action":"inspect"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
Need sample via JS? Browser tool only actions, no evaluate. Could use bash with maybe node? But browser state not accessible. Could use browser action key? We can use console? The inspect output only DOM text. We can perhaps add temporary visible debug? Or use window hook and browser URL? No evaluate tool. Maybe browser action "motion" gives frames? Let's see.
{"action":"motion"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
Could use browser action click, key, type. Need verify pause/resume/restart. We can click buttons and observe DOM text status. But not actual animation values. Could perhaps use browser screenshot unsupported images. We can use headless browser via bash? Check environment. Maybe puppeteer installed? We can use node and CDP? The browser tool itself maybe can inspect but no evaluate. Could create temporary code that logs to DOM status samples? But final should not include debug. Could use URL hash? Or use browser action type to execute JS? No. Maybe "key" can type into focused? Not JS console. We can use bash to run a headless browser if available (chromium, puppeteer). Let's inspect files/env.
{"command":"ls -la /tmp/job-yc0wpi && node -e \"try{console.log(require.resolve('puppeteer'))}catch(e){console.log('no puppeteer')}\" && whitotal 96 drwx------ 3 node node 4096 Oct 15 04:11 . drwxrwxrwt 8 root root 4096 Oct 15 04:12 .. drwxr-xr-x 4 node node 4096 Oct 15 04:12 .home -rw-r--r-- 1 node node 72214 Oct 15 04:10 gsap.min.js -rw-r--r-- 1 node node 10468 Oct 15 04:11 index.html no puppeteer
thinking
Could use playwright?
{"command":"node -e \"for (const p of ['playwright','playwright-core','selenium-webdriver','jsdom']) {try{console.log(p,require.resolve(p))}no playwright no playwright-core no selenium-webdriver no jsdom
thinking
Could use browser tool's action click and maybe DOM text. To sample timeline, perhaps expose values in status element temporarily, but final can remove. Or use querySelector via browser action? No. Maybe browser tool supports "type" which types text into focused element, not eval. Could use key combination to open devtools? likely not. We can reason and maybe use static parse. But requirement says verify sample several moments. We can implement a debug overlay that samples timeline and displays values in DOM, then use browser inspect to read. But adding debug to final isn't ideal. Could add temporary query param? Or use status element to show sample when pressing keyboard? We can temporarily modify, inspect, then restore. That's acceptable. Better: use browser action click pause, status text. For actual values, temporarily change updateStatus to include time and shape/dot data. Then inspect at moments? Browser tool reload resets time; cannot wait? Browser actions maybe each call takes time, animation continues. We can use browser action screenshot maybe no image. Could use action "motion" perhaps returns frames but not image due model. Hmm. Could use bash with Node and jsdom not installed. Could install? no network. Maybe gsap can run in Node with fake DOM? We can use npm? no external network. Could use browser's built-in DevTools protocol via CDP if browser process accessible. The browser tool likely launches Chromium. Maybe environment has remote debugging port. Inspect processes.
{"command":"ps aux | grep -E 'chrom|firefox|webkit' | grep -v grep | head -20; env | grep -Ei 'browser|chrome|chromium|playwright|puppeteer|/bin/bash: line 1: ps: command not found PLAYWRIGHT_BROWSERS_PATH=/opt/playwright
thinking
Aha playwright browsers path. Maybe browser binaries there.
{"command":"find /opt/playwright -maxdepth 4 -type f \\( -name 'chrome' -o -name 'chromium' -o -name 'headless_shell' -o -name 'firefox' \\)/opt/playwright/chromium-1234/chrome-linux64/chrome total 24 drwxr-xr-x 6 root root 4096 Oct 9 00:39 . drwxr-xr-x 5 root root 4096 Oct 9 00:40 .. drwxr-xr-x 2 root root 4096 Oct 9 00:39 .links drwxr-xr-x 3 root root 4096 Oct 9 00:39 chromium-1234 drwxr-xr-x 3 root root 4096 Oct 9 00:39 chromium_headless_shell-1234 drwxr-xr-x 2 root root 4096 Oct 9 00:39 ffmpeg-1011
thinking
Great. We can use Chromium via CDP manually or maybe install playwright-core from /app? Search node_modules.
{"command":"find /app/pipeline/node_modules -maxdepth 2 -type d \\( -name 'playwright-core' -o -name 'puppeteer-core' -o -name 'chromium-bid/app/pipeline/node_modules/playwright-core DEPENDENCIES_VALIDATED INSTALLATION_COMPLETE chrome-headless-shell-linux64
thinking
Great! We can write Node script using playwright-core and local chromium. Need launch server maybe file://. Use playwright-core API. Let's create temporary script /tmp/verify.js, not in final. Use chromium executable path. Need perhaps headless. We'll sample timeline at times by evaluating window.__loadingLoop. We can also test pause/resume/restart. Need ensure no growing instances: track number of gsap timelines? Could count global timelines? We can sample timeline time and instances. We can evaluate `gsap.globalTimeline.getChildren().length` maybe includes timeline. But growing instances not expected. We can record `window.__loadingLoop.timeline` identity and children count across loops. We can wait > duration and compare.
Let's write script. Use playwright-core. Need maybe args no-sandbox. Evaluate expressions. Sample at t=0, 1.1, 2.2, 3.3, 4.4, 5.2. Since timeline auto plays and duration 5.28. Use page.evaluate to get sample. But between calls, time advances. We can use timeline.pause and `timeline.time(x)` then sample, then play. That's deterministic. We'll sample at several moments by pausing and setting time. This doesn't alter final behavior. Then test pause/resume from current state: pause at 2.5, record time, wait 500ms, time unchanged; resume, wait 300ms, time > 2.5. Restart: time 0 and starting values. Also check timeline duration and repeat. Check no abrupt jump: compare computed properties at progress just before end and after repeat. Since timeline duration 5.28, at t=5.27 and t=5.29 (next cycle 0.01) values should be close. Use page.evaluate with timeline.time and sample. But if timeline paused, set time. We'll write.
Need know playwright-core API version. Use `require('/app/pipeline/node_modules/playwright-core')`. Launch executable. Let's do./tmp/job-yc0wpi/verify.js (4167 bytes)Successfully wrote to /tmp/job-yc0wpi/verify.js
{"command":"node /tmp/job-yc0wpi/verify.js","timeout":60}duration 5.28 repeat -1 SAMPLE 0.00 { "time": 0, "progress": 0, "paused": true, "shapes": [ { "name": "a", "x": -186, "y": -64, "scale": 0.9, "radius": "30%" }, { "name": "b", "x": -149, "y": 5, "scale": 1.16, "radius": "50%" }, { "name": "c", "x": -70, "y": 26, "scale": 0.72, "radius": "24%" }, { "name": "d", "x": 33, "y": -91, "scale": 1.08, "radius": "44%" } ], "dots": [ { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } SAMPLE 0.80 { "time": 0.8, "progress": 0.15151515151515152, "paused": true, "shapes": [ { "name": "a", "x": -144, "y": -74, "scale": 1, "radius": "35.2893%" }, { "name": "b", "x": -124, "y": 2, "scale": 1.079, "radius": "44.2717%" }, { "name": "c", "x": -47, "y": 15, "scale": 0.819, "radius": "29.5696%" }, { "name": "d", "x": 8, "y": -81, "scale": 1.019, "radius": "39.4142%" } ], "dots": [ { "y": -5, "scale": 1.004, "opacity": 0.5895 }, { "y": -3, "scale": 0.922, "opacity": 0.5139 }, { "y": -1, "scale": 0.861, "opacity": 0.4575 }, { "y": 0, "scale": 0.826, "opacity": 0.4258 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } SAMPLE 2.20 { "time": 2.2, "progress": 0.4166666666666667, "paused": true, "shapes": [ { "name": "a", "x": -186, "y": -64, "scale": 0.9, "radius": "30%" }, { "name": "b", "x": -45, "y": -7, "scale": 0.82, "radius": "26.0159%" }, { "name": "c", "x": 38, "y": -24, "scale": 1.179, "radius": "49.9312%" }, { "name": "d", "x": -98, "y": -41, "scale": 0.762, "radius": "20.1428%" } ], "dots": [ { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": -18, "scale": 1.435, "opacity": 0.9858 }, { "y": -16, "scale": 1.39, "opacity": 0.9446 }, { "y": -14, "scale": 1.32, "opacity": 0.8805 }, { "y": -12, "scale": 1.232, "opacity": 0.7996 } ] } SAMPLE 3.60 { "time": 3.6, "progress": 0.6818181818181818, "paused": true, "shapes": [ { "name": "a", "x": -186, "y": -64, "scale": 0.9, "radius": "30%" }, { "name": "b", "x": -149, "y": 5, "scale": 1.16, "radius": "50%" }, { "name": "c", "x": -70, "y": 26, "scale": 0.72, "radius": "24%" }, { "name": "d", "x": 33, "y": -91, "scale": 1.08, "radius": "44%" } ], "dots": [ { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } SAMPLE 5.10 { "time": 5.1, "progress": 0.9659090909090908, "paused": true, "shapes": [ { "name": "a", "x": -186, "y": -64, "scale": 0.9, "radius": "30%" }, { "name": "b", "x": -149, "y": 5, "scale": 1.16, "radius": "50%" }, { "name": "c", "x": -70, "y": 26, "scale": 0.72, "radius": "24%" }, { "name": "d", "x": 33, "y": -91, "scale": 1.08, "radius": "44%" } ], "dots": [ { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } LOOP SEAM DELTAS { maxShapeDelta: 0, maxDotDelta: 0 } PAUSE/RESUME { pausedTime: 2.5, stillPausedTime: 2.5, resumedTime: 2.829, movedWhilePaused: false, movedAfterResume: true, pausedDotY: 0, resumedDotY: 0 } RESTART { time: 0.135, firstShape: { name: 'a', x: -185, y: -64, scale: 0.903, radius: '30.1506%' }, dots: [ { y: -0, scale: 0.826, opacity: 0.4254 }, { y: 0, scale: 0.82, opacity: 0.42 }, { y: 0, scale: 0.82, opacity: 0.42 }, { y: 0, scale: 0.82, opacity: 0.42 }, { y: 0, scale: 0.82, opacity: 0.42 } ] } Command timed out after 60 seconds
thinking
Verification script timed out at 60 due 11 sec wait maybe browser close? Output stopped before stability, likely command timeout at 60 due maybe browser launch or wait? It says timed out after 60, but output includes restart. Maybe 11 sec should finish. Could be browser close hang. But enough. However I see issue: at t=2.2, shape A already returned to start at 2.24? Actually shape A starts at 0, mid at 0, returns at 2.2, so A is static after 2.2 until loop. Shape B starts at 0.04, returns 2.24, static. C starts .08 returns 2.28, static. D starts .12 returns 2.32, static. Thus after 2.32 until dots finish 5.28, shapes are frozen for ~3 seconds. That's not great loading animation; group shapes only animate first half, dots animate entire. Requirement group shapes smoothly change; could still, but long freeze. Better design timeline where shapes animate across full duration, perhaps stagger and each shape's path spans full duration with offsets. We can set shape start at index*0.35, mid at DURATION/2 + index*0.35, end at DURATION + index*0.35, but then last ends after DURATION, timeline duration DURATION+offset. Still all animate but some static at beginning/end. Or use yoyo with repeat? Could create shape tween from start to mid and back with duration DURATION/2 each, starting at index*0.35, total DURATION+0.9. Timeline ~6.18 >6 if DURATION 4.4. Could set DURATION 3.8 and offsets. Need 3-6. Or use repeat within timeline? Simpler: shape each has two tweens duration 1.8, offset 0.35, total 4.3? Let's calculate: last start 1.05, mid at 2.85, end at 4.65. Dots maybe total 5.28. Timeline 5.28. Shapes animate until 4.65, only 0.63 freeze. Better. But DURATION variable currently 4.4. We can define SHAPE_DURATION=3.6, SHAPE_OFFSET=0.35. Shape last end 3.6+1.05=4.65. Dots total 5.28. Good. At t=0, all start. At t=0.8, A near mid, B etc. At t=2.2, A returned and static, B maybe returning, C/D moving. At t=3.6, D near mid, A/B/C static. At t=5.1 all static. Still some freeze but okay. Could instead use shape repeat with yoyo? Hmm. Maybe better to make shapes continuously orbit using a longer timeline with each shape having start->mid->start over full duration but offset such that last ends at timeline end. Use SHAPE_SPAN = timeline duration 5.28, each shape path duration 4.2, offset i*0.36, last ends 5.28. First shape static after 4.2 for 1.08. Fine. Dots span full. This gives more motion. Let's define TIMELINE_DURATION=5.28, SHAPE_DURATION=4.2, SHAPE_OFFSET=0.36. Each shape set at offset, to mid at offset+duration/2, return at offset+duration. Last offset 1.08 +4.2=5.28. Timeline duration exactly 5.28. Dots: currently first dot starts 0, peak at 1.1, return 2.2; last starts .88, peak 1.98, return 3.08. Then dots static after 3.08 for 2.2 sec. Better make dots span full timeline too: DOT_SPAN = 4.4, DOT_OFFSET=0.22. Last dot start .88, peak .88+2.2=3.08, return 5.28. First dot static after 4.4 for .88. Good. So define DURATION maybe timeline 5.28, SHAPE_DURATION 4.2, SHAPE_OFFSET .36, DOT_DURATION 4.4, DOT_OFFSET .22. Then all elements animate nearly full sequence, no long freeze. Great. Need adjust code. Current shape uses DURATION/2 and index*.04. Dots uses DURATION/2 and DOT_OFFSET. Replace with constants. Also shape config end unused can remove to avoid confusion. Not necessary but clean. Let's edit constants and loops.
{"edits":[{"newText":" const TIMELINE_DURATION = 5.28;\n const SHAPE_DURATION = 4.2;\n const SHAPE_OFFSET = 0.36;\n consSuccessfully replaced 3 block(s) in /tmp/job-yc0wpi/index.html.
thinking
Need remove end from shapeConfig maybe not required. Could leave but confusing. Let's edit each? Could remove end lines with one edit perhaps exact block. Not necessary for behavior. But code quality maybe remove. We can use regex? edit exact. Let's do multi edit for four end lines.
{"edits":[{"newText":" start: { x: -140, y: -18, scale: 0.9, radius: \"30%\" },\n mid: { x: 20, y: -54, scale: 1.28, radiuSuccessfully replaced 4 block(s) in /tmp/job-yc0wpi/index.html.
thinking
Need update verify script times maybe duration 5.28. Samples good. Stability wait maybe reduce to 6 sec to avoid timeout. Also browser close issue maybe add force? Let's edit wait 6000 and maybe browser.close timeout. Also restart sample after 120ms not exactly 0; okay but can set time? Better test restart by click then immediately evaluate time maybe 0 or tiny. We can pause after restart to sample exact start: click restart then evaluate pause and time 0. But that tests restart returns beginning. We'll adjust. Also identity comparison of timeline object in evaluate returns object not comparable? Playwright serializes; identityBefore === identityAfter always false maybe. Better compare a marker: assign `window.__timelineId = tl`? Still object. Could assign `tl.__id = 'loading-loop'`, then evaluate property. Or compare children and existence. We'll edit script. Also maybe command timeout due browser close; set `await browser.close({force:true})` not supported? Playwright Browser.close options? maybe. Use `browser.close()` okay. The timeout perhaps because 11 sec + startup + samples >60? Actually output took maybe 60 due page.waitForTimeout(11000) but should 11. Could be Chromium shutdown slow. We'll reduce.
Need rerun verify with updated times.{"edits":[{"newText":" const identityBefore = await page.evaluate(() => {\n window.__loadingLoop.timeline.__probeId = 'loading-loop';\n Successfully replaced 2 block(s) in /tmp/job-yc0wpi/verify.js.
thinking
Run with timeout maybe 90.
{"command":"node /tmp/job-yc0wpi/verify.js","timeout":90}duration 5.28 repeat -1 SAMPLE 0.00 { "time": 0, "progress": 0, "paused": true, "shapes": [ { "name": "a", "x": -186, "y": -64, "scale": 0.9, "radius": "30%" }, { "name": "b", "x": -149, "y": 5, "scale": 1.16, "radius": "50%" }, { "name": "c", "x": -70, "y": 26, "scale": 0.72, "radius": "24%" }, { "name": "d", "x": 33, "y": -91, "scale": 1.08, "radius": "44%" } ], "dots": [ { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } SAMPLE 0.80 { "time": 0.8, "progress": 0.15151515151515152, "paused": true, "shapes": [ { "name": "a", "x": -140, "y": -74, "scale": 1.01, "radius": "35.805%" }, { "name": "b", "x": -140, "y": 4, "scale": 1.13, "radius": "47.8928%" }, { "name": "c", "x": -70, "y": 26, "scale": 0.721, "radius": "24.0755%" }, { "name": "d", "x": 33, "y": -91, "scale": 1.08, "radius": "44%" } ], "dots": [ { "y": -5, "scale": 1.004, "opacity": 0.5895 }, { "y": -3, "scale": 0.922, "opacity": 0.5139 }, { "y": -1, "scale": 0.861, "opacity": 0.4575 }, { "y": 0, "scale": 0.826, "opacity": 0.4258 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } SAMPLE 2.20 { "time": 2.2, "progress": 0.4166666666666667, "paused": true, "shapes": [ { "name": "a", "x": -186, "y": -64, "scale": 0.9, "radius": "30%" }, { "name": "b", "x": -48, "y": -7, "scale": 0.83, "radius": "26.7358%" }, { "name": "c", "x": 19, "y": -15, "scale": 1.1, "radius": "45.4674%" }, { "name": "d", "x": -42, "y": -63, "scale": 0.899, "radius": "30.4533%" } ], "dots": [ { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": -18, "scale": 1.435, "opacity": 0.9858 }, { "y": -16, "scale": 1.39, "opacity": 0.9446 }, { "y": -14, "scale": 1.32, "opacity": 0.8805 }, { "y": -12, "scale": 1.232, "opacity": 0.7996 } ] } SAMPLE 3.60 { "time": 3.6, "progress": 0.6818181818181818, "paused": true, "shapes": [ { "name": "a", "x": -186, "y": -64, "scale": 0.9, "radius": "30%" }, { "name": "b", "x": -149, "y": 5, "scale": 1.16, "radius": "50%" }, { "name": "c", "x": -70, "y": 26, "scale": 0.72, "radius": "24%" }, { "name": "d", "x": 33, "y": -91, "scale": 1.08, "radius": "44%" } ], "dots": [ { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } SAMPLE 5.10 { "time": 5.1, "progress": 0.9659090909090908, "paused": true, "shapes": [ { "name": "a", "x": -186, "y": -64, "scale": 0.9, "radius": "30%" }, { "name": "b", "x": -149, "y": 5, "scale": 1.16, "radius": "50%" }, { "name": "c", "x": -70, "y": 26, "scale": 0.72, "radius": "24%" }, { "name": "d", "x": 33, "y": -91, "scale": 1.08, "radius": "44%" } ], "dots": [ { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } LOOP SEAM DELTAS { maxShapeDelta: 0, maxDotDelta: 0 } PAUSE/RESUME { pausedTime: 2.5, stillPausedTime: 2.5, resumedTime: 2.858, movedWhilePaused: false, movedAfterResume: true, pausedDotY: 0, resumedDotY: 0 } Command timed out after 90 seconds
thinking
Again timeout before restart output. Why? It seems after pause/resume, something hangs. Maybe page.click('#pause-btn') when timeline paused toggles resume, okay. Then restart maybe page.click hangs? Could be because after resume, timeline loops, but click should work. Yet timeout at 90. Maybe browser tool or playwright process stuck due `page.evaluate(() => window.__loadingLoop.timeline.pause())`? No. Could be Chromium becomes unresponsive due GSAP infinite loop? No.
Wait output ends after PAUSE/RESUME, so next block `page.evaluate(() => { timeline.time(3.7); });` maybe hangs? Why would evaluating timeline.time hang? It shouldn't. Maybe the page's requestAnimationFrame is throttled because headless? But evaluate should still run. Could be GSAP timeline with repeat -1 and `page.evaluate` waiting for something? No.
Maybe the browser tool itself uses same Chromium and our launched browser conflicts? Unlikely.
Could be `page.click('#restart-btn')` hangs because button is outside viewport? It's visible. But maybe after timeline resumes, CSS backdrop-filter causes performance? no.
Let's run a simpler script with logs and timeout per action, maybe use `page.evaluate` with `Promise.race`. Or use CDP directly. But not necessary for final, yet we want verify restart. Could use browser tool click and inspect status. Let's do browser reload, click pause, inspect, click resume, inspect, click restart, inspect. Browser tool can do.{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
Need coordinates. Buttons likely around y 500? We can use browser click with coordinates. Need know layout. 1200x800. Main centered, buttons around y 520 maybe. Could use DOM via browser inspect doesn't give coordinates. We can use action click with x/y approximate. Let's screenshot unsupported images. Maybe use browser action click at 560,540? Let's estimate. Main width min(680), height maybe 470. Centered at 600,400. Content: padding 34, h1 ~30, subtitle ~20, stage 250, dots 34, controls 45, status. Total ~430. Top starts 185. Controls center around 185+34+30+28+250+26+34+30 = 617? Let's calculate: top 185, padding top 34 =>219, h1 30=>249, subtitle margin 6+28=>283, stage 250=>533, margin 26=>559, dots 34=>593, margin 30=>623, controls height 45=>668. So buttons y ~645. Pause button center x maybe 540, restart 660. Let's click 540,645.
{"action":"click","x":540,"y":645}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
DOM still shows Pause and LOADING, maybe click missed or status not updated? It should show Resume/Paused. Maybe coordinates wrong. Let's use browser action key? Could focus button via tab? We can click with x/y maybe actual y different. Need get bounding rect via some way. Could use browser action type? No. Could use `browser` action maybe "inspect" only DOM. Could use CSS to make buttons larger? Or use keyboard navigation: key Tab then Enter. Browser action key maybe sends key. Let's try key Tab maybe focus first button.
{"action":"key","text":"Tab"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
Key action maybe text is key name? It didn't show focus. Try "Enter".
{"action":"key","text":"Enter"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nResume\nRestart\n\nPAUSED","images":"model does not support images"}
thinking
Great! Tab focused first button, Enter toggled pause. Now status Resume/PAUSED. Need resume: Enter again.
{"action":"key","text":"Enter"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
Resume works. Restart: need focus second button. Tab once then Enter.
{"action":"key","text":"Tab"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
{"action":"key","text":"Enter"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
Restart likely worked but status remains Loading. Good.
Need maybe verify starting composition after restart via window hook, but browser inspect doesn't show. Could use temporary DOM output. But our Playwright script already verified samples and pause/resume, but restart hung. We can debug why. Maybe after pause/resume, `page.click('#restart-btn')` hangs because timeline is playing and browser action? Let's run a focused script only restart with logs and timeout. Use Node with `page.evaluate` and maybe `page.click` with timeout 5000. Let's create small script./tmp/job-yc0wpi/restart-test.js (1025 bytes)Successfully wrote to /tmp/job-yc0wpi/restart-test.js
{"command":"node /tmp/job-yc0wpi/restart-test.js","timeout":30}loaded Command timed out after 30 seconds
thinking
It hangs at `page.evaluate(() => window.__loadingLoop.timeline.time(3.7))`? Output loaded then blank. Why? Maybe `timeline.time(3.7)` triggers GSAP render and page becomes unresponsive? That seems odd. Could be because GSAP uses `Date.now()` or rAF and page evaluate blocks? No.
Wait maybe `page.evaluate` with function returning timeline.time(3.7) causes GSAP to render, and because timeline has `immediateRender: true` and infinite repeat, perhaps GSAP enters an infinite loop? But earlier verify script did `setTime` many times successfully. It used `tl.pause(); tl.time(t);`. Here we call `timeline.time(3.7)` while playing. Maybe calling time on a playing timeline triggers a render that schedules rAF; but evaluate should return. Yet maybe GSAP's `time()` with a playing timeline and repeat -1 causes infinite recursion? Unlikely.
Maybe the page's `window.__loadingLoop` getter? No.
Could be the previous browser tool session holds the same user data directory and locks? But loaded. Hmm.
Let's use `page.evaluate(() => { const tl=window.__loadingLoop.timeline; tl.pause(); tl.time(3.7); })` like before.{"edits":[{"newText":" await page.evaluate(() => {\n const tl = window.__loadingLoop.timeline;\n tl.pause();\n tl.time(3.7);\n })Successfully replaced 1 block(s) in /tmp/job-yc0wpi/restart-test.js.
{"command":"node /tmp/job-yc0wpi/restart-test.js","timeout":30}loaded set time 3.7 clicked Command timed out after 30 seconds
thinking
Now hangs after clicked, likely `page.evaluate(() => timeline.pause())` after restart? Why? Maybe restart button click causes timeline.restart, then page evaluate pause hangs due GSAP? Strange. Could be browser page becomes unresponsive because `timeline.restart()` with repeat -1 and immediateRender true triggers an infinite loop? But browser tool restart worked. Maybe Playwright's evaluate hangs because page is busy in rAF? Let's avoid pause after click; just sample after short wait using `page.waitForTimeout`. Earlier full script hung at restart after click before pause. Maybe click itself triggers something that blocks page? But browser tool worked. Could be `timeline.restart()` while timeline is playing and page has `repeat: -1` causes GSAP to schedule many frames, but not block. Maybe the issue is that `page.click` resolves, then `page.evaluate` cannot because the page's JavaScript event loop is blocked by GSAP due to `repeatDelay: 0` and `immediateRender: true`? But animation runs fine in browser tool. Hmm. Let's test with `page.waitForTimeout(100)` then evaluate.
{"edits":[{"newText":" await page.waitForTimeout(100);\n console.log('time after restart', await page.evaluate(() => window.__loadingLoop.Successfully replaced 1 block(s) in /tmp/job-yc0wpi/restart-test.js.
{"command":"node /tmp/job-yc0wpi/restart-test.js","timeout":30}loaded set time 3.7 clicked time after restart 0.121 { "time": 0.121, "progress": 0.022916666666666665, "paused": false, "shapes": [ { "name": "a", "x": -185, "y": -64, "scale": 0.902, "radius": "30.1328%" }, { "name": "b", "x": -149, "y": 5, "scale": 1.16, "radius": "50%" }, { "name": "c", "x": -70, "y": 26, "scale": 0.72, "radius": "24%" }, { "name": "d", "x": 33, "y": -91, "scale": 1.08, "radius": "44%" } ], "dots": [ { "y": 0, "scale": 0.825, "opacity": 0.4243 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 }, { "y": 0, "scale": 0.82, "opacity": 0.42 } ] } closed
thinking
Great. So full verify script hang due pause after restart maybe not needed. We can adjust full script similarly and run maybe stability. But we already have enough. Still, let's verify stability and no growing instances with a simpler script. Also maybe check at several moments while playing (not just paused) to satisfy "sample timeline at several moments". We did paused samples. Could sample during play by waiting and reading time. Let's write concise verify2 with logs, no problematic pause after restart. Use evaluate with pause before setting time. For stability, wait 6 sec. Let's do.
/tmp/job-yc0wpi/verify2.js (3419 bytes)Successfully wrote to /tmp/job-yc0wpi/verify2.js
{"command":"node /tmp/job-yc0wpi/verify2.js","timeout":45}duration 5.28 repeat -1 sample 0 {"shapes":[[-186,-64,0.9,"30%"],[-149,5,1.16,"50%"],[-70,26,0.72,"24%"],[33,-91,1.08,"44%"]],"dots":[[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42]]} sample 1.2 {"shapes":[[-85,-87,1.14,"42.6531%"],[-116,1,1.051,"42.32%"],[-59,21,0.768,"26.7167%"],[32,-91,1.078,"43.8433%"]],"dots":[[-10,1.18,0.7513],[-7,1.081,0.6605],[-5,0.988,0.5747],[-3,0.909,0.502],[-1,0.852,0.4498]]} sample 2.6 {"shapes":[[-186,-64,0.9,"30%"],[-149,5,1.16,"50%"],[36,-23,1.17,"49.4293%"],[-79,-49,0.809,"23.6615%"]],"dots":[[0,0.82,0.42],[0,0.82,0.42],[-18,1.45,0.9995],[-17,1.429,0.9802],[-16,1.379,0.9345]]} sample 4 {"shapes":[[-186,-64,0.9,"30%"],[-149,5,1.16,"50%"],[-70,26,0.72,"24%"],[33,-91,1.08,"44%"]],"dots":[[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42]]} sample 5.2 {"shapes":[[-186,-64,0.9,"30%"],[-149,5,1.16,"50%"],[-70,26,0.72,"24%"],[33,-91,1.08,"44%"]],"dots":[[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42]]} seam deltas { shapes: 0, dots: 0 } pause/resume { t1: 2.4, t2: 2.4, t3: 2.709, frozen: true, resumed: true } restart 0.107 {"firstShape":{"name":"a","x":-185,"y":-64,"scale":0.902,"radius":"30.1038%"},"dots":[{"y":0,"scale":0.824,"opacity":0.4234},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42}]} stability { probe: 'same-instance', childrenBefore: 27, childrenAfter: 27, time: 1.341, paused: false } errors []
thinking
Great. But I notice at sample 2.6, shape A and B already at start and static until loop; shape C and D moving. At sample 4 all static because D ends at 5.28? Wait D starts at 1.08, mid at 3.18, ends 5.28. At 4 should be returning, not start. Why sample 4 shows start? Let's recalc: SHAPE_DURATION=4.2, SHAPE_OFFSET=0.36. D index 3 start time 1.08, first tween duration 2.1 ends 3.18 at mid, second tween ends 5.28 at start. At 4, should be between mid and start, not start. Yet sample 4 shows start. Something wrong: GSAP timeline positioning maybe because `timeline.set` at 0 and `timeline.to` with position `SHAPE_OFFSET * index` but default `immediateRender: true` and overlapping? Let's inspect timeline labels/duration. At t=4, D should moving. Why not? Maybe because `timeline.to` position is interpreted relative to end of previous tween? In GSAP, position parameter can be absolute time or "<" etc. Number is absolute. Should be 1.08. But because timeline has other tweens, maybe position number is absolute. Yes.
Wait sample 2.6: C starts at .72, mid at 2.82, so at 2.6 near mid (36,-23,1.17,49.4) yes. D starts 1.08, mid at 3.18, at 2.6 should be around halfway to mid, maybe (-79,-49) yes. At 4, D should be returning from mid to start, maybe around ( -? ) not start. Yet sample 4 shows start. Could it be that timeline duration is 5.28 but D's second tween ends at 5.28, and at 4 maybe because `power1.inOut` with duration 2.1 from mid to start, position 1.08+2.1=3.18 to 5.28. At 4, progress 0.39, should be significantly moved. Why start? Maybe GSAP's `borderRadius` tween from "50%" to "44%" etc? No.
Let's inspect timeline.getChildren positions and durations. Use page evaluate. Maybe `SHAPE_OFFSET * index` but `index` in `Object.values(shapeConfig).forEach` is 0,1,2,3. yes.
Wait sample 4 after setTime(4) maybe timeline paused at 4, but because `timeline.set(element, {...}, 0)` with `immediateRender: true`, when pausing at 4, the set at time 0 should not apply. Unless `set` with immediateRender true is re-rendered at end? No.
Could there be an issue with GSAP timeline `defaults: { immediateRender: true }` causing `set` at 0 to render every time the playhead passes? No, set renders when playhead is before its end? In GSAP, immediateRender for from tweens etc. For `set`, immediateRender true means it renders immediately when created, but also when playhead moves? It should render at time 0 only.
Let's inspect children./tmp/job-yc0wpi/inspect-timeline.js (761 bytes)Successfully wrote to /tmp/job-yc0wpi/inspect-timeline.js
{"command":"node /tmp/job-yc0wpi/inspect-timeline.js","timeout":30}[ { type: undefined, target: [ 'shape-a' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'shape-a' ], start: 0, duration: 2.1, end: 2.1 }, { type: undefined, target: [ 'shape-b' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'shape-c' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'shape-d' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'dot' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'dot' ], start: 0, duration: 2.2, end: 2.2 }, { type: undefined, target: [ 'dot' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'dot' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'dot' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'dot' ], start: 0, duration: 0, end: 0 }, { type: undefined, target: [ 'dot' ], start: 0.22, duration: 2.2, end: 2.4200000000000004 }, { type: undefined, target: [ 'shape-b' ], start: 0.36, duration: 2.1, end: 2.46 }, { type: undefined, target: [ 'dot' ], start: 0.44, duration: 2.2, end: 2.64 }, { type: undefined, target: [ 'dot' ], start: 0.66, duration: 2.2, end: 2.8600000000000003 }, { type: undefined, target: [ 'shape-c' ], start: 0.72, duration: 2.1, end: 2.8200000000000003 }, { type: undefined, target: [ 'dot' ], start: 0.88, duration: 2.2, end: 3.08 }, { type: undefined, target: [ 'shape-d' ], start: 1.08, duration: 2.1, end: 3.18 }, { type: undefined, target: [ 'shape-a' ], start: 2.1, duration: 2.1, end: 4.2 }, { type: undefined, target: [ 'dot' ], start: 2.2, duration: 2.2, end: 4.4 }, { type: undefined, target: [ 'dot' ], start: 2.42, duration: 2.2, end: 4.62 }, { type: undefined, target: [ 'shape-b' ], start: 2.46, duration: 2.1, end: 4.5600000000000005 }, { type: undefined, target: [ 'dot' ], start: 2.64, duration: 2.2, end: 4.84 }, { type: undefined, target: [ 'shape-c' ], start: 2.82, duration: 2.1, end: 4.92 }, { type: undefined, target: [ 'dot' ], start: 2.86, duration: 2.2, end: 5.0600000000000005 }, { type: undefined, target: [ 'dot' ], start: 3.08, duration: 2.2, end: 5.28 }, { type: undefined, target: [ 'shape-d' ], start: 3.18, duration: 2.1, end: 5.28 } ]
thinking
Timeline correct. Why sample 4 shows start for D? Let's manually compute D at t=4: start time 3.18, duration 2.1, progress (4-3.18)/2.1=0.3905, ease power1.inOut => ~0.36, so x from mid -70 to start 62 => -70 + 132*0.36 = -22.5, y -12 to -62 => -30. Not start. But sample 4 showed 33,-91 start. Maybe because at t=4, shape D's second tween is not active due timeline's total duration? Wait shape D second tween start 3.18, end 5.28. It should. Could the `sample` function's DOMMatrix transform be affected by `xPercent:-50`? It reports transform.e/f including xPercent? At t=0, x=-186 for start x -140 plus xPercent -50 of width 92 => -186. At t=4, if transform is none? It reports start values maybe because `getComputedStyle(el).transform` returns matrix from GSAP. Hmm. Maybe at t=4, GSAP rendered D at start because the second tween's `immediateRender: true` caused it to render start values at time 0 and then when playhead jumps to 4, it renders? No. Let's directly evaluate gsap.getProperty at t=4 for shape-d. Maybe sample uses `getComputedStyle` and GSAP transform but perhaps `timeline.time(4)` while paused doesn't render because timeline was created with `paused:false` and then paused? It should. Let's test with specific times and raw props.
/tmp/job-yc0wpi/raw-test.js (921 bytes)Successfully wrote to /tmp/job-yc0wpi/raw-test.js
{"command":"node /tmp/job-yc0wpi/raw-test.js","timeout":30}{"t":3.2,"x":62,"y":-62,"scale":1.08,"radius":"44%"} {"t":3.6,"x":62,"y":-62,"scale":1.08,"radius":"44%"} {"t":4,"x":62,"y":-62,"scale":1.08,"radius":"44%"} {"t":4.5,"x":62,"y":-62,"scale":1.08,"radius":"44%"} {"t":5,"x":62,"y":-62,"scale":1.08,"radius":"44%"}
thinking
Interesting: shape-d is stuck at start from 3.2 onward. Why? Because the second tween for shape-d starts at 3.18 and its `from` values? Wait it should tween from mid to start. But perhaps because the first tween for shape-d ends at 3.18 and the second tween starts at 3.18, but due `immediateRender: true` default in timeline defaults, the second tween immediately renders its end values at creation time? Actually for `to` tweens, immediateRender defaults false unless in timeline? In GSAP, `immediateRender` defaults true for `from` and `fromTo`, false for `to`. But we set `defaults: { immediateRender: true }` on timeline! That causes every `to` tween to immediately render its *end* values when created, potentially overriding earlier tweens. Yet shapes still animate because later tweens? Let's think. With immediateRender true on all `to` tweens, when timeline is built, each tween renders its end values immediately at time 0. Then as playhead moves, earlier tween renders and overrides. But for a tween starting later, its immediateRender at creation sets end values, then when playhead passes earlier tweens, they override until the later tween starts. At time after later tween ends, maybe it holds end values. For shape-d, second tween end values are start values, so from 3.18 to 5.28 it should tween from mid to start. But why stuck at start from 3.2? Because the first tween for shape-d ends at 3.18 with mid values, then second tween starts at 3.18. At t=3.2, progress small, should be near mid, not start. Unless the second tween's immediateRender at creation set start values and because of some zero duration? No.
Wait maybe `immediateRender: true` on `to` tweens in timeline causes them to render when the playhead is *before* their start time too, i.e., they remain rendered at end values even before start? That would be catastrophic, but earlier tweens override. Let's inspect shape-a at t=1.2: sample showed (-85,-87,1.14,42.65), which is between start and mid, so first tween active. At t=2.6, shape-a at start because its second tween ended at 4.2? Wait shape-a second tween start 2.1 end 4.2, so at 2.6 should be returning from mid to start, not at start. Yet sample 2.6 showed shape-a at start. Similarly shape-b second tween starts 2.46 end 4.56, at 2.6 should be near mid returning, but sample showed start. So all second tweens appear to render their end values immediately and stay there, rather than animating. That means the return tweens are not actually animating; they just jump to end values at their start times. Why? Because `immediateRender: true` in defaults causes `to` tweens to render end values immediately when created, and perhaps when their start time is reached, they render end values and then... but they should still animate. Yet sample at 3.6 for shape-d shows start, not mid-to-start interpolation. Maybe because the first tween's end values are overridden by second tween's immediateRender at creation, and when playhead reaches second tween start, it renders end values and then the tween's progress is 0 but because immediateRender already rendered end values, it doesn't render start values? Hmm, in GSAP, immediateRender for `to` tween means it renders the *starting* values immediately (current state) to memory, not end values. Actually for `to`, immediateRender records starting values, but doesn't change them. So shouldn't.
Let's inspect timeline children's `progress` at t=4 maybe. Use `t.progress()` and `t.vars`. Maybe the second tween's startTime is 3.18 but `duration` 2.1. At t=4 progress should 0.39. Let's evaluate./tmp/job-yc0wpi/progress-test.js (852 bytes)Successfully wrote to /tmp/job-yc0wpi/progress-test.js
{"command":"node /tmp/job-yc0wpi/progress-test.js","timeout":30}TypeError: Converting circular structure to JSON --> starting at object with constructor 'Object' | property '_dp' -> object with constructor 'Object' --- property '_first' closes the circle at JSON.stringify (<anonymous>) at /tmp/job-yc0wpi/progress-test.js:12:20 at runNextTicks (node:internal/process/task_queues:65:5) at process.processImmediate (node:internal/timers:472:9) Command exited with code 1
thinking
Need omit vars.
{"edits":[{"newText":" return tl.getChildren(true, true, true).filter(x => x.targets()[0].id === 'shape-d').map(x => ({ start: x.startTimSuccessfully replaced 1 block(s) in /tmp/job-yc0wpi/progress-test.js.
{"command":"node /tmp/job-yc0wpi/progress-test.js","timeout":30}[ { "start": 0, "duration": 0, "progress": 1, "time": 0 }, { "start": 1.08, "duration": 2.1, "progress": 1, "time": 2.1 }, { "start": 3.18, "duration": 2.1, "progress": 0.39047619047619037, "time": 0.8199999999999998 } ]
thinking
Progress correct. Why rendered values start? Maybe because the second tween's start values are not the mid values but the start values due `immediateRender: true` and overlapping? Let's inspect `t.vars` maybe `to` values. It should to start. The tween from current values at time 3.18 should be mid. But maybe because the first tween's end values are start? Wait first tween for shape-d goes from start to mid. At t=3.18, progress 1, so mid. Then second tween starts at 3.18 and should record start values at that moment. But because `immediateRender: true` on second tween, when created, it immediately renders its end values (start) at time 0, and also records start values as the *current* values at creation time, which are start (since at time 0 the element is at start due set). Thus when the second tween runs at 3.18, it tweens from the recorded start values (start) to end values (start), resulting in no motion. Aha! That's the issue. `immediateRender: true` on `to` tweens records starting values at creation time, not at tween start, when there are delayed tweens. Actually GSAP docs: immediateRender for `to` tweens is generally false; setting true can cause issues with delayed tweens because it renders immediately and records start values. So we should remove `immediateRender: true` from timeline defaults. We don't need it because we have explicit `set` at 0. Let's remove defaults immediateRender. Then delayed `to` tweens will record start values when they first render at their start time, giving correct motion. Great catch. Need edit timeline defaults.
{"edits":[{"newText":" const timeline = gsap.timeline({\n paused: false,\n repeat: -1,\n repeatDelay: 0\n });Successfully replaced 1 block(s) in /tmp/job-yc0wpi/index.html.
thinking
Now rerun raw test and verify2.
{"command":"node /tmp/job-yc0wpi/raw-test.js && node /tmp/job-yc0wpi/verify2.js","timeout":60}{"t":3.2,"x":-69.9761,"y":-12.0091,"scale":0.7601,"radius":"20.0044%"} {"t":3.6,"x":-59.44,"y":-16,"scale":0.7856,"radius":"21.92%"} {"t":4,"x":-29.7475,"y":-27.2472,"scale":0.8576,"radius":"27.3186%"} {"t":4.5,"x":25.5788,"y":-48.2041,"scale":0.9917,"radius":"37.378%"} {"t":5,"x":57.3067,"y":-60.2222,"scale":1.0686,"radius":"43.1467%"} duration 5.28 repeat -1 sample 0 {"shapes":[[-46,-46,1,"0px"],[-37,-37,1,"0px"],[-32,-32,1,"0px"],[-29,-29,1,"0px"]],"dots":[[0,1,1],[0,1,1],[0,1,1],[0,1,1],[0,1,1]]} sample 1.2 {"shapes":[[-85,-87,1.14,"42.6531%"],[-116,1,1.051,"42.32%"],[-59,21,0.768,"26.7167%"],[32,-91,1.078,"43.8433%"]],"dots":[[-10,1.18,0.7513],[-7,1.081,0.6605],[-5,0.988,0.5747],[-3,0.909,0.502],[-1,0.852,0.4498]]} sample 2.6 {"shapes":[[-44,-96,1.237,"47.7324%"],[-46,-7,0.823,"26.2133%"],[36,-23,1.17,"49.4293%"],[-79,-49,0.809,"23.6615%"]],"dots":[[-17,1.4,0.954],[-18,1.44,0.9905],[-18,1.45,0.9995],[-17,1.429,0.9802],[-16,1.379,0.9345]]} sample 4 {"shapes":[[-183,-65,0.907,"30.3628%"],[-134,3,1.112,"46.5867%"],[-29,7,0.897,"33.9802%"],[-59,-56,0.858,"27.3186%"]],"dots":[[-1,0.87,0.466],[-3,0.936,0.5264],[-6,1.021,0.6048],[-8,1.117,0.6934],[-11,1.215,0.7837]]} sample 5.2 {"shapes":[[-186,-64,0.9,"30%"],[-149,5,1.16,"50%"],[-70,26,0.72,"24%"],[33,-91,1.079,"43.9303%"]],"dots":[[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.822,0.4219]]} seam deltas { shapes: 0, dots: 0 } pause/resume { t1: 2.4, t2: 2.4, t3: 2.711, frozen: true, resumed: true } restart 0.114 {"firstShape":{"name":"a","x":-185,"y":-64,"scale":0.902,"radius":"30.1179%"},"dots":[{"y":0,"scale":0.824,"opacity":0.4238},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42}]} stability { probe: 'same-instance', childrenBefore: 27, childrenAfter: 27, time: 1.352, paused: false } errors []
thinking
Now sample 0 shows shapes at -46,-46 scale 1 radius 0px! Why? Because removing immediateRender means the explicit `timeline.set` at 0 with default immediateRender? `set` always immediate? Actually `set` is a tween with duration 0 and immediateRender true by default? It should render at time 0. But sample 0 was taken after `setTime(0)` which pauses and sets time 0. Yet shapes show -46,-46 scale 1 radius 0px, which is the default CSS state (position top/left 0 with xPercent -50, yPercent -50, width 92 => -46). So the `set` at time 0 is not rendering when time is set to 0? Why? Because `set` with position 0 and duration 0 maybe has `immediateRender: true` by default, but when timeline is paused and time set to 0, it should render. Yet it doesn't. Maybe because `set` at time 0 is considered already rendered at creation and when time returns to 0, GSAP doesn't re-render zero-duration tween? Hmm. Earlier with immediateRender true in defaults, sample 0 was correct because all tweens immediateRender. Now without, the set may not re-render after being overridden by later tweens? Let's inspect. At time 0, the set should apply. But perhaps because `set` is a zero-duration tween at time 0 and its `immediateRender` is true, it rendered at creation, but when we paused at time 5.2 then set time 0, GSAP's render at time 0 may not include zero-duration tween because of how it handles exact zero? It should.
We need ensure starting composition at time 0 and after restart. We can use `timeline.set(..., { immediateRender: true }, 0)` explicitly. But `set` already maybe. Let's test adding immediateRender true to set calls. Or use `timeline.call`? Better: use `timeline.set(element, {...}, 0)` and maybe `immediateRender: true` in vars. Let's add. Also for dots. Then sample 0 should correct. The earlier issue with immediateRender on `to` tweens was due delayed start; `set` at 0 is fine. Let's edit set calls to include immediateRender: true. There are two sets (shapes and dots). Could add to each object. Let's do.{"edits":[{"newText":" timeline.set(element, {\n x: start.x,\n y: start.y,\n scale: start.scale,\n Successfully replaced 2 block(s) in /tmp/job-yc0wpi/index.html.
thinking
Rerun verify2.
{"command":"node /tmp/job-yc0wpi/verify2.js","timeout":45}duration 5.28 repeat -1 sample 0 {"shapes":[[-186,-64,0.9,"30%"],[-149,5,1.16,"50%"],[-70,26,0.72,"24%"],[33,-91,1.08,"44%"]],"dots":[[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42]]} sample 1.2 {"shapes":[[-85,-87,1.14,"42.6531%"],[-116,1,1.051,"42.32%"],[-59,21,0.768,"26.7167%"],[32,-91,1.078,"43.8433%"]],"dots":[[-10,1.18,0.7513],[-7,1.081,0.6605],[-5,0.988,0.5747],[-3,0.909,0.502],[-1,0.852,0.4498]]} sample 2.6 {"shapes":[[-44,-96,1.237,"47.7324%"],[-46,-7,0.823,"26.2133%"],[36,-23,1.17,"49.4293%"],[-79,-49,0.809,"23.6615%"]],"dots":[[-17,1.4,0.954],[-18,1.44,0.9905],[-18,1.45,0.9995],[-17,1.429,0.9802],[-16,1.379,0.9345]]} sample 4 {"shapes":[[-183,-65,0.907,"30.3628%"],[-134,3,1.112,"46.5867%"],[-29,7,0.897,"33.9802%"],[-59,-56,0.858,"27.3186%"]],"dots":[[-1,0.87,0.466],[-3,0.936,0.5264],[-6,1.021,0.6048],[-8,1.117,0.6934],[-11,1.215,0.7837]]} sample 5.2 {"shapes":[[-186,-64,0.9,"30%"],[-149,5,1.16,"50%"],[-70,26,0.72,"24%"],[33,-91,1.079,"43.9303%"]],"dots":[[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.82,0.42],[0,0.822,0.4219]]} seam deltas { shapes: 0, dots: 0 } pause/resume { t1: 2.4, t2: 2.4, t3: 2.679, frozen: true, resumed: true } restart 0.11 {"firstShape":{"name":"a","x":-185,"y":-64,"scale":0.902,"radius":"30.1098%"},"dots":[{"y":0,"scale":0.824,"opacity":0.4236},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42},{"y":0,"scale":0.82,"opacity":0.42}]} stability { probe: 'same-instance', childrenBefore: 27, childrenAfter: 27, time: 1.353, paused: false } errors []
thinking
Great. Now all samples show motion. At sample 5.2 shape D radius 43.9303 not exactly 44 due easing near end; seam deltas 0 because comparing 5.27 and 5.29 maybe both essentially start. Good. Need maybe check browser visual. Use browser reload and maybe screenshot unsupported. Could use browser action screenshot maybe returns image model doesn't support. We can at least reload and inspect no console errors.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Preparing your experience\n\nA seamless GSAP loading loop with motion-matched geometry.\n\nPause\nRestart\n\nLOADING","images":"model does not support images"}
thinking
Need maybe remove temporary verify scripts? User only asked index.html. Extra files in cwd might be okay but perhaps should remove verify.js etc to keep only index.html and gsap.min.js. The addendum says end with index.html present; extra files probably okay but better clean temporary scripts. Use bash rm.
{"command":"rm -f /tmp/job-yc0wpi/verify.js /tmp/job-yc0wpi/verify2.js /tmp/job-yc0wpi/restart-test.js /tmp/job-yc0wpi/inspect-timeline.js /total 96 drwx------ 3 node node 4096 Oct 15 04:20 . drwxrwxrwt 17 root root 4096 Oct 15 04:20 .. drwxr-xr-x 6 node node 4096 Oct 15 04:12 .home -rw-r--r-- 1 node node 72214 Oct 15 04:10 gsap.min.js -rw-r--r-- 1 node node 10372 Oct 15 04:20 index.html
thinking
Need final concise report. Mention checked via headless Chromium samples, pause/resume, restart, seam deltas, stability, no console errors. Note visual screenshot not available due image model. Also mention full sequence 5.28s. Ensure no claim unverified. We did not visually inspect screenshot, but DOM/computed styles. Could mention browser tool reload no errors. Final with file path.
Created `/tmp/job-yc0wpi/index.html` with a self-contained GSAP loading loop. **Implementation** - Dark centered composition with four rounded gradient shapes. - Shapes tween position, scale, and `border-radius` through a midpoint and back to their exact starting values. - Five dots pulse with staggered vertical motion, scale, and opacity. - One GSAP timeline, `repeat: -1`, total duration **5.28 seconds**. - Pause/Resume and Restart controls plus a status label. - Local `gsap.min.js` loaded via plain `<script src="gsap.min.js">`; no external assets. **Verified with headless Chromium** - Timeline duration: `5.28s`, repeat: `-1`. - Sampled at 0s, 1.2s, 2.6s, 4s, and 5.2s; shapes showed intermediate positions/scales/radii and dots showed staggered motion. - Loop seam deltas: `0` for both shapes and dots, so repeats are seamless. - Pause froze the timeline at 2.4s; resume advanced it to ~2.68s. - Restart returned to the starting composition and time 0. - After ~6.5 seconds of looping, the same timeline remained active with a constant child count (`27`). - No page errors or console errors. Visual screenshot rendering was not available in this environment.