import { chromium } from 'playwright';
import { mkdir, writeFile } from 'node:fs/promises';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { analyzePhoto, visionFailureResponse } from '../src/vision-service.js';
import { loadVisionCorpus } from '../src/vision-corpus.js';
const output = path.resolve(process.argv[2] || 'release-demo.webm');
const version = process.env.TIMMY_RELEASE_VERSION || 'review build';
// The release delta is supplied by the builder so the recording states, on camera, what actually
// changed in this release instead of implying a feature that did not ship.
const releaseDelta = process.env.TIMMY_RELEASE_DEMO_DELTA
|| 'Verified rebuild of the current user-visible feature path — no new feature is claimed.';
const captionsOut = process.env.TIMMY_DEMO_CAPTIONS_OUT || '';
const captionsShown = [];
const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
await mkdir(path.dirname(output), { recursive: true });
// The refusal scene replays committed synthetic corpus cases through the real analysis code path,
// so the recording shows the status and copy the server would actually send rather than copy
// written for the video. No real photo is used anywhere in the corpus.
const corpus = await loadVisionCorpus(fileURLToPath(new URL('../tests/fixtures/vision-corpus/', import.meta.url)));
const corpusCase = id => corpus.cases.find(entry => entry.id === id);
async function corpusAnalyzeResult(entry) {
const fetchImpl = async () => ({ ok: true, json: async () => ({ choices: [{ message: { content: entry.providerContent } }] }) });
try {
const result = await analyzePhoto({
payload: { imageDataUrl: 'data:image/png;base64,YQ==', consent: true },
fetchImpl,
config: { baseUrl: 'http://127.0.0.1:9/v1', apiKey: 'corpus-replay', model: 'corpus-model' },
});
return { status: 200, body: result };
} catch (error) {
const failure = visionFailureResponse(error);
return { status: failure.status, body: failure.body };
}
}
const browser = await chromium.launch({ headless: true });
const context = await browser.newContext({
viewport: { width: 405, height: 720 },
deviceScaleFactor: 1,
serviceWorkers: 'block',
recordVideo: { dir: path.dirname(output), size: { width: 405, height: 720 } },
colorScheme: 'light',
});
const page = await context.newPage();
const errors = [];
page.on('console', message => { if (message.type() === 'error') errors.push(message.text()); });
page.on('pageerror', error => errors.push(error.message));
let visionOffline = false;
// Reachable is not loaded: the worker can answer /v1/models before its pinned model is resident,
// and the recording shows the app withholding AI in exactly that state (issue #15).
let modelLoaded = true;
await page.route('**/api/vision-status', route => route.fulfill({
status: 200,
contentType: 'application/json',
body: JSON.stringify({
enabled: true,
profile: 'selfhost',
processor: 'self-hosted',
model: 'SmolVLM2-2.2B-Instruct',
// The second pass flips the app's own readiness contract so no AI control is offered at all.
providerReady: !visionOffline,
modelSeen: !visionOffline && modelLoaded,
}),
}));
// The happy path keeps one deterministic suggestion. The refusal scene swaps this for a real
// corpus replay, so both the usable and the refused answers come from the same code path.
const suggestionBody = {
status: 'suggestion',
isStool: true,
bristolType: 4,
color: 'brown',
confidence: 0.83,
imageQuality: 'good',
observations: 'Smooth, formed appearance.',
warning: 'Visual suggestion only. Confirm it yourself; this is not a diagnosis.',
};
let analyzeOverride = null;
await page.route('**/api/analyze', route => {
const response = analyzeOverride || { status: 200, body: suggestionBody };
return route.fulfill({ status: response.status, contentType: 'application/json', body: JSON.stringify(response.body) });
});
await page.route('**/api/agent/status', route => route.fulfill({
status: 200,
contentType: 'application/json',
body: JSON.stringify({ enabled: true, configured: true, authenticated: true, mode: 'hermes-agent' }),
}));
let hermesCalls = 0;
await page.route('**/api/agent/chat', route => {
hermesCalls += 1;
return route.fulfill({
status: 200,
contentType: 'application/json',
body: JSON.stringify({ connected: true, reply: 'Your confirmed logs are mostly Type 4. I can explain that pattern, but I cannot diagnose a cause.' }),
});
});
await page.goto('http://127.0.0.1:4173', { waitUntil: 'networkidle' });
await page.evaluate(() => localStorage.clear());
await page.reload({ waitUntil: 'networkidle' });
await page.addStyleTag({ content: `
#demo-caption{position:fixed;left:16px;right:16px;top:14px;z-index:20000;background:rgba(40,33,29,.94);color:#fff;padding:11px 14px;border-radius:14px;font:800 12px/1.25 system-ui;letter-spacing:.02em;text-align:center;box-shadow:0 8px 24px rgba(0,0,0,.2)}
#demo-touch{position:fixed;z-index:20001;width:48px;height:48px;border:4px solid #fff;background:rgba(245,201,91,.55);box-shadow:0 0 0 7px rgba(21,125,120,.28);border-radius:50%;pointer-events:none;transform:translate(-50%,-50%)}
` });
async function caption(text, duration = 1400) {
captionsShown.push(text);
await page.evaluate(text => {
document.querySelector('#demo-caption')?.remove();
const node = document.createElement('div');
node.id = 'demo-caption';
node.textContent = text;
document.body.append(node);
node.animate([{ opacity: 0, transform: 'translateY(-8px)' }, { opacity: 1, transform: 'translateY(0)' }], { duration: 260, fill: 'forwards' });
}, text);
await sleep(duration);
// A caption must not outlive its stated duration. It used to stay on screen until the next one
// replaced it, so a view change left the previous screen's claim hanging over a different screen —
// e.g. a delete-data caption sitting on top of the home view.
await page.evaluate(() => {
const node = document.querySelector('#demo-caption');
if (!node) return;
node.animate([{ opacity: 1 }, { opacity: 0 }], { duration: 180, fill: 'forwards' });
setTimeout(() => node.remove(), 220);
});
await sleep(220);
}
async function tap(selector, after = 650) {
const target = page.locator(selector).first();
await target.scrollIntoViewIfNeeded();
const box = await target.boundingBox();
if (!box) throw new Error(`Missing demo target: ${selector}`);
await page.evaluate(({ x, y }) => {
document.querySelector('#demo-touch')?.remove();
const ring = document.createElement('div');
ring.id = 'demo-touch';
ring.style.left = `${x}px`;
ring.style.top = `${y}px`;
document.body.append(ring);
ring.animate([{ opacity: .2, transform: 'translate(-50%,-50%) scale(.55)' }, { opacity: 1, transform: 'translate(-50%,-50%) scale(1)' }], { duration: 400 });
setTimeout(() => ring.remove(), 550);
}, { x: box.x + box.width / 2, y: box.y + box.height / 2 });
await sleep(220);
await target.click();
await sleep(after);
}
async function indicate(selector) {
const target = page.locator(selector).first();
await target.scrollIntoViewIfNeeded();
const box = await target.boundingBox();
if (!box) throw new Error(`Missing demo target: ${selector}`);
await page.evaluate(({ x, y }) => {
document.querySelector('#demo-touch')?.remove();
const ring = document.createElement('div');
ring.id = 'demo-touch';
ring.style.left = `${x}px`;
ring.style.top = `${y}px`;
document.body.append(ring);
ring.animate([{ opacity: .2, transform: 'translate(-50%,-50%) scale(.55)' }, { opacity: 1, transform: 'translate(-50%,-50%) scale(1)' }], { duration: 400 });
setTimeout(() => ring.remove(), 550);
}, { x: box.x + box.width / 2, y: box.y + box.height / 2 });
await sleep(650);
}
await caption(`TIMMY ${version} • RELEASE DEMO`, 1200);
await caption(`This release: ${releaseDelta}`, 2600);
await caption('Automated checks replay this synthetic path before review', 1200);
await caption('One clear photo action. Manual logging stays one tap away.', 1500);
await tap('[data-scan]', 450);
await page.getByText(/Self-hosted model ready/i).waitFor();
await caption('The pinned bootstrap verifies both model files before starting on private loopback', 1500);
await indicate('label[for="camera-photo"]');
await page.locator('#camera-photo').dispatchEvent('cancel');
await page.getByText(/Camera or photo picker closed/i).waitFor();
await caption('Camera closed cleanly — gallery and manual logging are still available', 1600);
await indicate('label[for="gallery-photo"]');
await page.locator('#gallery-photo').setInputFiles('tests/fixtures/synthetic-type4.jpg');
await caption('Nothing uploads until explicit consent', 1100);
await page.locator('#ai-consent').check();
await tap('#analyze-photo', 450);
await page.getByText(/83% confidence/i).waitFor();
await caption('AI may suggest visible form, broad color, and image quality — never symptoms or diagnosis', 1700);
await indicate('.scan-result[data-provenance="pending"]');
await caption('The suggestion stays provisional — nothing is applied or saved until you confirm it', 1700);
await tap('#use-suggestion', 450);
await page.locator('.ai-provenance[data-provenance="confirmed"]').waitFor();
await caption('Confirming is explicit, and every suggested value is still yours to overrule', 1600);
await tap('[data-type="2"]', 500);
await page.locator('[data-provenance="corrected"]').waitFor();
await caption('Change a suggested value and Timmy clears the AI-confirmed state', 1700);
await indicate('.ai-provenance[data-provenance="corrected"] .provenance-note');
await tap('#next', 450);
await page.getByText(/You changed it to Type 2/).waitFor();
await caption('Only visible form and color were ever suggested — urgency, discomfort, and symptoms stay yours', 1900);
await tap('#next', 450);
await page.locator('[data-followup-block]').waitFor();
await caption('Type 2 is hard or lumpy, so Timmy asks about soreness, hydration, blood, and black-or-tarry — never guessed from the photo', 2600);
await page.locator('[data-question="bloodVisible"]').scrollIntoViewIfNeeded();
await indicate('[data-question="bloodVisible"]');
await tap('[data-followup="bloodVisible"][data-answer="no"]', 400);
await caption('Every answer is yours to give, and a skipped question stays unanswered', 1900);
await tap('[data-followup="soreness"][data-answer="yes"]', 350);
await tap('[data-followup="dehydration"][data-answer="yes"]', 350);
await page.locator('#followup-guidance').waitFor();
await caption('Mild report: steady water, no straining, gentle care — general self-care, not a diagnosis', 2600);
await indicate('#followup-guidance');
await caption('And it never claims the photo ruled out bleeding', 1900);
await tap('[data-followup="tarryBlack"][data-answer="yes"]', 600);
await page.locator('#urgent-box .alert').waitFor();
await caption('Say it was truly black and tarry and the same deterministic red-flag path fires instead', 2600);
await tap('[data-followup="tarryBlack"][data-answer="no"]', 500);
await page.locator('#urgent-box .alert').waitFor({ state: 'detached' });
await caption('Dark brown is not silently escalated, and the flag clears the moment the answer changes', 2200);
await tap('#close-sheet', 450);
await caption('Closing the log keeps the draft in this session instead of throwing it away', 1600);
await caption('Now the same photo flow while the vision worker is offline', 1500);
visionOffline = true;
await tap('[data-scan]', 550);
await page.getByText(/Vision worker offline/i).waitFor();
await caption('Vision worker offline — the AI and consent steps disappear instead of failing after upload', 1900);
await indicate('label[for="gallery-photo"]');
await page.locator('#gallery-photo').setInputFiles('tests/fixtures/synthetic-type4.jpg');
await page.getByText(/Ready for your review/i).waitFor();
await caption('No consent prompt and no upload when analysis cannot run', 1600);
await tap('#manual-from-scan', 500);
const keptDraft = await page.locator('.draft-resume').innerText({ timeout: 5000 });
if (!/Type 2/.test(keptDraft)) throw new Error('The retained draft must show the value the user corrected to');
await caption('One tap still reaches manual Bristol entry, and the draft keeps your corrected value', 1800);
await tap('#discard-draft', 500);
await caption('Start over clears the kept draft — nothing lingers silently', 1500);
await tap('#close-sheet', 450);
// Post-load readiness pass (issue #15): the worker answers, but its pinned model is not resident
// yet. The app must withhold AI instead of offering a control that fails after the upload. Every
// claim below is asserted in the browser, so the recording cannot show a state the app does not have.
modelLoaded = false;
visionOffline = false;
await caption('Now the same worker while its pinned model is still loading', 1700);
await tap('[data-scan]', 550);
await page.getByText(/model is not loaded yet/i).first().waitFor();
if (await page.getByText(/Self-hosted model ready/i).count() !== 0) {
throw new Error('A reachable worker without its loaded model must never be reported ready');
}
const loadingAmber = await page.locator('.model-status.loading').first().evaluate(el => getComputedStyle(el).backgroundColor);
if (loadingAmber !== 'rgb(253, 243, 216)') throw new Error('The not-loaded state must be visually distinct from ready and offline');
await page.locator('#gallery-photo').setInputFiles('tests/fixtures/synthetic-type4.jpg');
await page.getByText(/Ready for your review/i).waitFor();
if (await page.locator('#analyze-photo').count() !== 0) throw new Error('No AI control may exist before the model is loaded');
if (await page.locator('.consent-card').count() !== 0) throw new Error('No consent may be requested before the model is loaded');
await caption('Reachable is not loaded: no AI control, no consent, and no upload until the pinned model is resident', 2900);
await tap('#manual-from-scan', 500);
await page.getByText('Pick the closest form').waitFor();
await caption('One tap still reaches manual Bristol entry while the model finishes loading', 2000);
await tap('#close-sheet', 450);
modelLoaded = true;
await caption('Once the pinned model is loaded, the same screen offers the AI analysis again', 2200);
await tap('[data-scan]', 550);
await page.getByText(/Self-hosted model ready/i).waitFor();
await page.locator('#gallery-photo').setInputFiles('tests/fixtures/synthetic-type4.jpg');
await page.getByText(/Ready for your review/i).waitFor();
if (await page.locator('.consent-card').isVisible() !== true) throw new Error('The AI path must return once the model is loaded');
if (await page.locator('#analyze-photo').count() !== 1) throw new Error('The analyze control must return once the model is loaded');
await tap('#close-sheet', 450);
// Corpus refusal pass (issue #18): the same photo flow, fed the answers Timmy has to refuse.
visionOffline = false;
await caption('The corpus also replays the answers Timmy has to refuse', 1700);
analyzeOverride = await corpusAnalyzeResult(corpusCase('non-stool-scene'));
await tap('[data-scan]', 500);
await page.getByText(/Self-hosted model ready/i).waitFor();
await page.locator('#gallery-photo').setInputFiles('tests/fixtures/vision-corpus/non-stool-scene.png');
await page.locator('#ai-consent').check();
await tap('#analyze-photo', 600);
await page.getByText(/No confident match/i).waitFor();
await caption('A non-stool photo gets a refusal, never a guess — manual entry stays one tap away', 2600);
await indicate('.scan-result');
analyzeOverride = await corpusAnalyzeResult(corpusCase('glare-overexposed'));
await tap('#retake-photo', 400);
await page.locator('#gallery-photo').setInputFiles('tests/fixtures/vision-corpus/glare-overexposed.png');
await page.locator('#ai-consent').check();
await tap('#analyze-photo', 600);
await page.getByText(/does not show a form Timmy can read safely/i).waitFor();
await caption('Unreadable visual fields abstain as well: a valid reply with nothing to prefill is not an error', 2700);
await indicate('.scan-result');
analyzeOverride = await corpusAnalyzeResult(corpusCase('out-of-range-fields'));
await tap('#retake-photo', 400);
await page.locator('#gallery-photo').setInputFiles('tests/fixtures/vision-corpus/out-of-range-fields.png');
await page.locator('#ai-consent').check();
await tap('#analyze-photo', 600);
await page.getByText(/couldn’t analyze that safely/i).waitFor();
await caption('An out-of-range answer fails closed: nothing is applied and no provider detail reaches you', 2700);
await indicate('.scan-result');
// Issue #73's escape class: one field blank, the other filled in and impossible. The old blank-first
// ordering abstained here, which told the user the photo was unreadable while the model had returned a
// value Timmy must never apply. The scene is asserted in the browser, not just captioned.
analyzeOverride = await corpusAnalyzeResult(corpusCase('blank-plus-out-of-range'));
await tap('#retake-photo', 400);
await page.locator('#gallery-photo').setInputFiles('tests/fixtures/vision-corpus/blank-plus-out-of-range.png');
await page.locator('#ai-consent').check();
await tap('#analyze-photo', 600);
await page.getByText(/couldn’t analyze that safely/i).waitFor();
if (await page.getByText(/No confident match/i).count() !== 0) {
throw new Error('A filled-in out-of-range field must not be shown as an unreadable-photo abstention');
}
await caption('A filled-in field that is out of range still fails closed, even when the other field came back blank', 2900);
await indicate('.scan-result');
await caption('You are no longer told the photo was unreadable when the model returned an impossible value', 2400);
await indicate('.scan-result');
await caption('Every refusal replays a committed synthetic fixture — there are no real photos in the corpus', 2500);
analyzeOverride = null;
await tap('#close-sheet', 450);
// Explainable pattern summary (issue #34). The recording seeds fictional multi-day sample logs into
// the app's own local ledger contract, then follows one summary line to the exact records behind it.
// Every claim below is checked in the browser, and no real health data is involved anywhere.
const seedSyntheticLedger = async entries => {
const key = await page.evaluate(() => `timmy:${document.querySelector('meta[name="timmy-base-path"]')?.content || '/'}:ledger-v1`);
await page.evaluate(({ storeKey, list }) => localStorage.setItem(storeKey, JSON.stringify(list)), { storeKey: key, list: entries });
await page.reload({ waitUntil: 'networkidle' });
};
const sampleDay = (id, daysAgo, bristolType) => ({
id,
occurredAt: new Date(Date.now() - daysAgo * 86400000).toISOString(),
bristolType,
color: 'brown',
urgency: 1,
discomfort: 1,
note: '',
photoDataUrl: '',
symptoms: {},
});
await caption('The journal explains its own pattern lines instead of just asserting a trend', 2200);
await seedSyntheticLedger([
sampleDay('demo-firm', 2, 2),
sampleDay('demo-typical-1', 5, 3),
sampleDay('demo-typical-2', 9, 4),
sampleDay('demo-typical-3', 12, 4),
sampleDay('demo-old', 40, 6),
]);
await caption("Fictional sample logs are seeded into this browser's own storage — no real health data appears here", 2600);
await page.locator('[data-pattern-summary]').waitFor();
await indicate('[data-pattern-summary]');
await caption('The summary says which confirmed logs it read, and a citation opens exactly those records', 2400);
await indicate('[data-statement="typical"]');
await tap('[data-statement-link="typical"]', 650);
const citedRecords = await page.locator('[data-summary-record]').evaluateAll(nodes => nodes.map(node => node.getAttribute('data-entry-id')).sort());
if (JSON.stringify(citedRecords) !== JSON.stringify(['demo-typical-1', 'demo-typical-2', 'demo-typical-3'])) {
throw new Error('A summary citation must list exactly the records it cites');
}
await caption('Every pattern line names the confirmed logs behind it, and following one shows exactly those records', 2900);
await indicate('[data-summary-records]');
await tap('#pattern-records-close', 450);
await seedSyntheticLedger([sampleDay('demo-sparse-1', 1, 4), sampleDay('demo-sparse-2', 4, 6)]);
await page.locator('[data-summary-insufficient]').waitFor();
await indicate('[data-summary-insufficient]');
await caption('Two logs is not a pattern: the summary refuses to describe a trend it cannot support', 2900);
// Restore the empty ledger the earlier scenes started from, so the rest of the recording is unchanged.
await page.evaluate(() => localStorage.clear());
await page.reload({ waitUntil: 'networkidle' });
await caption('The threat model documents this surface, so the recording shows it live rather than describing it', 2200);
await tap('[data-view="calendar"]', 550);
await page.getByText(/Your private journal/i).waitFor();
await tap('[data-view="privacy"]', 550);
await page.getByText(/Your poop\. Your phone\./i).waitFor();
await caption('Every byte-bearing control the model names, in the running app: local ledger, consent-gated upload, portable export, full deletion', 2800);
await indicate('#export');
await caption('Export writes a plain JSON file you hold — the model records it as a data-lifetime boundary, not a server sync', 2600);
await indicate('#delete-all');
await caption('Delete all local data clears the ledger in this browser; there is no server copy of it to keep', 2600);
await tap('[data-view="home"]', 500);
await tap('[data-view="timmy"]', 550);
await page.getByText(/Hermes Agent connected/i).waitFor();
await caption('Hermes Agent connected — free-text, contextual, and server-side', 1400);
await page.locator('#chat-message').fill('What pattern do you see?');
await tap('#send-chat', 500);
await page.getByText(/mostly Type 4/i).waitFor();
await caption('Hermes keeps credentials, tools, and session continuity server-side. Photos stay out of chat.', 1600);
await page.locator('#chat-message').fill('I barfed');
await tap('#send-chat', 450);
await page.getByText(/Pause and get medical help/i).waitFor();
if (hermesCalls !== 1) throw new Error('Urgent chat must be intercepted before Hermes');
await caption('Urgent language is intercepted deterministically before Hermes', 1800);
// Issue #21 — the escalation has to fire for the phrasing people actually use, not only for the one
// word the previous scene typed. Each line below is asserted in the browser: exactly one new Timmy
// bubble, carrying the app's own fixed copy, with hermesCalls unmoved.
const escalationBubbles = () => page.locator('.bubble.timmy', { hasText: 'Pause and get medical help' }).count();
const expectEscalation = async (text, label) => {
const before = await escalationBubbles();
await page.locator('#chat-message').fill(text);
await tap('#send-chat', 450);
const bubble = page.locator('.bubble.timmy', { hasText: 'Pause and get medical help' }).last();
await bubble.waitFor();
if (await escalationBubbles() !== before + 1) throw new Error(`${label}: expected exactly one escalation bubble`);
if (!/^Pause and get medical help\. These reported symptoms can need prompt medical care\./.test(await bubble.innerText())) {
throw new Error(`${label}: the escalation copy must be the app's own fixed string`);
}
if (hermesCalls !== 1) throw new Error(`${label}: an escalated turn must not reach Hermes`);
};
await expectEscalation('There is blood when I wipe', 'bleeding reported as wiping');
await caption('Bleeding reported as wiping still escalates, in the app’s own fixed words', 2600);
await expectEscalation('I have tarry stools', 'tarry stool');
await caption('Tarry and black stool wording escalates too: one red flag, one unchanging message', 2600);
// The same detector runs over the confirmed ledger, so a symptom already written down as a note
// escalates even when the question itself is innocuous. The seeded entry is fictional and stays in
// this browser, exactly like the summary scene above.
await page.evaluate(() => localStorage.clear());
await seedSyntheticLedger([{ ...sampleDay('demo-tarry-note', 1, 4), note: 'stool was tarry yesterday' }]);
await tap('[data-view="timmy"]', 550);
const ledgerEscalations = await escalationBubbles();
await page.locator('#chat-message').fill('What do my recent logs show?');
await tap('#send-chat', 450);
await page.locator('.bubble.timmy', { hasText: 'Pause and get medical help' }).last().waitFor();
if (await escalationBubbles() !== ledgerEscalations + 1) throw new Error('a tarry note in the journal must escalate the next answer');
if (hermesCalls !== 1) throw new Error('a ledger red flag must be intercepted before Hermes');
await caption('A tarry note already saved in the journal escalates the same way, before any provider call', 2800);
await page.evaluate(() => localStorage.clear());
await page.reload({ waitUntil: 'networkidle' });
await tap('[data-view="timmy"]', 500);
await sleep(400);
await page.evaluate(() => {
document.querySelector('#demo-caption')?.remove();
const outro = document.createElement('div');
outro.id = 'release-outro';
outro.innerHTML = '
SLEEK. SIMPLE.
HERMES-POWERED.User-confirmed guidance — never a diagnosis.';
Object.assign(outro.style, { position:'fixed', inset:'0', zIndex:'30000', background:'linear-gradient(145deg,#f7f3ea,#f5c95b)', display:'flex', flexDirection:'column', alignItems:'center', justifyContent:'center', textAlign:'center', color:'#28211d', fontFamily:'system-ui', opacity:'0' });
outro.querySelector('img').style.cssText = 'width:150px;height:150px;filter:drop-shadow(0 14px 16px rgba(63,37,30,.18))';
outro.querySelector('strong').style.cssText = 'font-size:31px;line-height:1.05;margin:18px 0 12px;letter-spacing:-.04em';
outro.querySelector('span').style.cssText = 'font-size:13px;font-weight:800;color:#176957';
document.body.append(outro);
outro.animate([{opacity:0},{opacity:1}], {duration:500,fill:'forwards'});
});
await sleep(2200);
// The refusal pass deliberately produces two fail-closed 503s (an out-of-range reply, and one blank field
// beside an out-of-range one), which the browser logs as failed resources. Requiring exactly those two
// keeps the scene honest: if the boundary stops refusing, this fails instead of quietly recording a happy
// path, and a dropped scene is caught rather than silently shrinking the evidence.
const expectedFailClosed = errors.filter(message => /Failed to load resource: the server responded with a status of 503 \(Service Unavailable\)/.test(message));
if (expectedFailClosed.length !== 2 || errors.length !== expectedFailClosed.length) {
throw new Error(`Browser errors: ${errors.join(' | ') || 'unexpected error count'}`);
}
// Machine-readable receipt of exactly what was rendered on camera, so the release gate can prove
// the recorded delta statement reached the screen instead of trusting the script source.
if (captionsOut) {
await writeFile(captionsOut, JSON.stringify({ version, releaseDelta, captions: captionsShown }, null, 2) + '\n', 'utf8');
}
const recording = page.video();
await page.close();
await recording.saveAs(output);
await context.close();
await browser.close();
console.log(output);