dist/index.html now exists, along with the rest of the site, but nothing has been built, tested or committed. The shell sandbox and the browser both failed on every attempt this session. The shell gave "Failed to create bridge sockets" and Chrome aborted with "Socket path too long". So I wrote every file directly with the file editor.

The repository had no files from the earlier attempt, which is why the check said dist/index.html was missing.

What's there

• The game: plain HTML, CSS and JavaScript with no dependencies, so the committed dist/ runs without a build step. The source is in src/; app.js holds the screens and game loop and logic.js the scoring rules. dist/ is a copy of src/, written file by file; every file's line count matches its source.
• Brief coverage: it includes tempo tracing (8% gold, 20% silver), Flow x1 to x5 with a cost for tapping during his pauses, and Daily Track with "Pacer #n". The 10-square share card copies to the clipboard. Setlist shows 20 runs with sparklines and best grades, and Live Duet adds a 250 x Flow bonus naming each block. Lullaby awards the sticker after 60 quiet seconds. It also has the 10 stickers, the tutorial, sound and reduced-motion toggles, and the footer. If an API call fails, the modes that need it are switched off with the reason on screen; nothing is simulated.
• Files: package.json and a dependency-free package-lock.json. Build, check and preview scripts are in scripts/, with tests for the game rules in scripts/check.mjs. There's also README.md, DESIGN.md and artifacts/validation.md.
• I added a .gitignore for node_modules/, .cache/, .npm/, test/scratch/ and *.tgz. The workspace had .cache/ and .npm/ folders that shouldn't be committed.

Checked against the live API: the field names in /v1/status and /v1/measurement/runs match what the brief says. A recorded "run" is really a list of short segments of wheel passages. The list only accepts limit (up to 100) and cursor, and runs oldest first. The game groups passages into runs and works out RPM from the gaps between them. That assumes one passage is one wheel turn, which is my inference and is noted in the README. The API's records start on Nov 5, so right now there is no "yesterday" run. The Daily panel says so and offers his newest run instead.

Not run, and recorded as such in artifacts/validation.md (status: Incomplete)

• npm run build, npm run check (syntax check plus 11 rule tests and a byte-for-byte comparison of dist/ with src/), and the design probe.
• Any viewing in a browser: no screenshots, no first-screen check at 390 wide, and contrast was estimated rather than measured.
• No git commit.

My design review was done by reading the source only. It caught one serious bug, now fixed in both copies: the tap pad and the tutorial's Back button would have stayed visible when hidden.

Open issues

• The share image is an SVG at a relative address. X needs a PNG at a full address, which can only be added once the site's final address is known.
• Only the first 6,000 segments are loaded, so once the history grows past that the newest runs will be missed. The API has no newest-first or date filter.

Once a working shell is available, run npm run check and then the design probe before trusting the export.

Not delivered: artifacts/validation.md. Under artifacts/, only this step's named outputs leave the machine.

Area	Result
Requirements	50: 41 met, 7 missing, 0 faked, 2 after review
Broken features	7
First screen at 390px	Product and main action visible after tutorial
taste@1	14/16 passed
Copy	1 medium finding
Share card	Ten squares and score copied successfully

Saved 8 verified findings: 5 high, 3 medium in .imd-findings.json. Website files are unchanged.

High findings cover stale live data, UTC Daily rollover, mobile name overflow, truncated history pagination, and excluded short runs. Medium findings cover the overwritten first-block toast, assistive button activation, and excess copy.

Requirement	Status	Evidence
Original single-page English game, correct name and lane	Met	src/index.html, README.md
Trace real wheel speed by tapping	Met	app.js:frame, logic.js:buildRuns
No falling notes, lanes or dashboard	Met	app.js:drawScope
Static site suitable for IPFS	Met	Relative assets and hash routes in dist/
Source and README	Met	src/, README.md
Recorded-runs endpoint and verified fields	Met	app.js:loadRuns; live response checked
Status every five seconds	Missing	A pending request stops polling indefinitely
ACTIVE, IDLE and COUNTER_FAULT states	Met	logic.js:liveOf, app.js:renderLive
rpmMilli / 1000	Met	logic.js:liveOf
Read measurement.freshness	Met	logic.js:liveOf, app.js:duetReady
Projected block height with anchor fallback	Met	logic.js:blockHeightOf
Explain unavailable sources and disable dependent modes	Missing	Stale IDLE unlocks rewards; expired ACTIVE continues play
Never present simulated data as real	Met	API-backed loaders; explicit error states
Each recorded run becomes a track	Missing	buildRuns discards short runs
Glowing scrolling seismograph; 45–90 seconds	Met	drawScope, makeTrack
Space and large mobile pad	Met	#pad, keyboard and pointer handlers
Rolling three-second RPM and second line	Met	playerRpm, drawScope
Gold within 8%, silver within 20%, otherwise miss	Met	logic.js:frameGrade
Gold builds Flow x1–x5	Met	logic.js:scoreFrame
Stop during pauses; taps cost Flow	Met	app.js:onTap/frame
End accuracy, longest gold streak and Flow peak	Met	app.js:renderResult
End real-run date, length and top RPM	Met	app.js:renderResult
Daily uses previous UTC day’s longest completed run consistently	Missing	Open tabs retain the old selection after midnight
“Pacer #”	Met	pacerNumber, renderDaily
Ten gold/silver/miss emoji segments plus score	Met	segmentGrades, shareText
One-button clipboard share, ready for X, no wallet links	Met	Clipboard contents verified
Setlist shows latest 20 runs sorted by date	Missing	Loader silently stops after 60 oldest-first pages
Setlist sparklines and best grades	Met	renderSetlist, drawSpark
Live Duet only while ACTIVE	Met	duetReady, startDuet
Duet uses live status for pacing	Met	duetStatus, duetTarget
Each new block adds 250 × Flow	Met	app.js:duetStatus
Each block toast names its real number	Missing	First toast is immediately overwritten by sticker announcement
IDLE replaces Duet with moon and breathing circle	Met	renderLive, startLullaby
Sixty quiet seconds earn Good roommate	Met	app.js:updateLullaby
Rest is never punished or rushed	Met	Calm screen and gentle timer reset
Ten stickers, including specified achievements	Met	STICKERS, finish, award
Sticker collection persists locally	Met	save, localStorage
Local best per track	Met	finish, store.best
Daily streak counter	Met	nextStreak, finish
Playe

All eight findings now have code fixes, but none of them has been run. The shell, browser and web fetch tools failed throughout this session, so I confirmed each defect and checked each fix only by reading the code. The changes also aren't committed, because git needs the shell; they're only in the working tree.

What each tool answered

• Shell: Failed to create bridge sockets after 5 attempts, on every call from first to last.
• Browser: Socket directory path is too long (131 bytes).
• Web fetch: HTTP 403 from both API endpoints, so the field names weren't rechecked against the live API.

This means the build, npm run check, the design probe (taste.mjs), the reviewers' reproduction steps and all rendering checks did not run. Since npm run build didn't run either, I made the same edits to dist/ by hand. Line counts and key-identifier counts match src/, but that doesn't prove the files are byte-identical. There's no typecheck to run because the source is plain JavaScript.

Fixes

Finding	Change
Stale live data (high)	Status requests time out after 8 seconds and a reading expires after 15. Duet and Lullaby both need online freshness; otherwise the duet ends or Lullaby stops with the reason shown, and no sticker is earned.
Long name overflow (high)	The results greeting now wraps.
Daily stuck on yesterday's track (high)	Daily re-reads runs and picks again at UTC midnight, and when opened with a list over a minute old. A session already started keeps its Pacer number and streak day.
Pagination cutoff (high)	The game follows nextCursor to the end, retrying each failed page up to twice. If a page still fails it shows an error instead of a partial list.
Short runs excluded (high)	The minimum length rules are gone. A run now needs two passages and a measurable speed.
First block toast lost	Toasts now queue, so the block number shows before the sticker message.
Tap pad ignored assistive clicks	The pad now accepts clicks, and a physical tap still counts only once.
Too much text on the phone screen	I used the shorter lines the finding proposed. That's about 52 words by hand count against the limit of 60.

I made two small changes beyond the findings:

• Run lengths: they now show at least 1 s and can no longer read 1 min 60 s.
• Lullaby: it can no longer start and earn its sticker behind a result card.

I also added tests to scripts/check.mjs, and created artifacts/validation.md, which the README and DESIGN.md already referred to but was missing.

Risks to check

• Lullaby may never appear: it now needs measurement.freshness to be online, as the finding asked. If the live API reports something else while he's simply resting, Lullaby stays off, and I couldn't check this.
• Setlist may fill with tiny runs: with short runs allowed, bursts of a few seconds can take up the last 20 entries. The finding asked for this, but it could look poor on real data.

Answers to the reviewers

.imd-responses.json marks all eight findings fixed, and each entry says how far it was actually checked. Treat fixed as "changed in the code, not yet confirmed".

Next step

On a machine where the tools work, run these first:

npm run build
git status --short dist
npm run check
node .imd/reads/skills/design-critic/scripts/taste.mjs --out test/scratch/taste

The git status line needs a baseline: dist/ already differs from the last commit, so it will list changes either way. To see whether the build altered my hand edits, stage dist/ before building, then use git diff --stat dist. npm run check also compares dist/ to src/ byte for byte.

Not delivered: artifacts/validation.md. Under artifacts/, only this step's named outputs leave the machine.

Area	Previous review	This review
Requirements	Full counts not supplied	39 met, 0 missing, 0 faked; 2 after review
Broken features	7 functional/accessibility findings	0 reproduced
Product on first screen, 390px	Yes	Yes, play button at y=429px
taste@1	Copy failure reported	16/16 passed
Copy findings	1	0; loaded Daily measures 54/60 words
Share card	No defect reported	10 squares and score copied successfully

All eight previous findings are fixed. .imd-findings.json contains {"findings":[]}. No website files changed. All 17 repository checks passed, and a complete playthrough succeeded in both Chromium and WebKit without script errors.

Previous finding	Resolution and measured evidence
bug: stale live status	At 390px, offline IDLE earned no sticker after 61 seconds. A hung request ended Duet after 13 seconds with an unavailable-data explanation; polling continued.
bug: long player name overflows results	At 320px, all 20 W characters wrap; document width remains exactly 320px.
bug: Daily remains stale after midnight	At 390px, midnight changes Pacer #3/Nov 4 to Pacer #4/Nov 5. An ongoing session retains its original day; replay becomes a Setlist run.
fidelity: pagination stops early	The browser requested all 61 pages and displayed page 60’s 01:40 run first among 20 entries.
fidelity: short runs excluded	The 10-second fixture appears in Daily and Setlist and completes as a 45-second track.
bug: first block toast overwritten	Block #207 and +250 remain visible before the queued sticker announcement.
accessibility: assistive click ignored	Two native button activations one second apart produce 60 RPM. Pointer and Space inputs also produce 60 RPM without duplicate taps.
taste: excessive Daily prose	Loaded Daily measures 54 words at 390px; the pinned probe’s copy check also passes.

The requirement inventory below groups related clauses into 41 checks. “After review” covers publication, not a repository defect.

Explicit requirement	Status	Evidence
“Original, playable single-page browser game named ‘Hamster Pacer: Echo’” for the Code lane	Met	src/index.html, README.md; completed playthroughs
Trace real speed curves by tapping; “NOT” falling notes, lanes, or a dashboard	Met	src/app.js: frame, drawScope, onTap
“English UI”	Met	src/index.html and rendered views
“Static site”	Met	dist/; source/export integrity check
“Publish” on IPFS	After review	Static export ready; publication follows review
“Source repo” publication	After review	Local source tree supplied; external publication follows review
“With README”	Met	README.md
Recorded-runs endpoint; verify fields against live responses	Met	Live response verified; passages[].at, eligibility, discontinuity and cursor parsing
Status endpoint “every 5 seconds”	Met	src/app.js: pollStatus; observed repeated requests
ACTIVE / IDLE / COUNTER_FAULT handling	Met	renderLive, duetReady, lullabyReady
rpmMilli / 1000 and freshness	Met	src/logic.js: liveOf, readingOnline; live fields verified
Projected block height, falling back to anchor	Met	src/logic.js: blockHeightOf
Explain unavailable sources, disable dependent modes, never present simulations as real	Met	Timeout reproductions; renderDaily, renderLive; production data loaders
“Each recorded run becomes a track”	Met	buildRuns; short-run reproduction passes
Glowing curve scrolling right to left on a seismograph canvas	Met	drawScope; gameplay rendering
“45 to 90 seconds of play”	Met	makeTrack; duration checks
Space and “a large pad on mobile”	Met	#pad, keyboard handlers; browser interaction checks
Rolling three-second tap win