KB3NNX

The card reads cleanly at desktop width: the city name is the headline, the temperature is the dominant figure, and the condition and wind sit beneath it (probe 0160b08c, desktop.png, Berlin, Germany 13°C, Partly Cloudy, Wind 17 km/h). The search form sits in its own card with a clear 'Find a city' label, and the unknown-city page keeps the search box filled with the rejected query. Deductions: the quick-pick row shows only names, so live values for the pinned cities are not visible in the delivered captures, and the page is a stack of three similar cards with little visual differentiation.

Text is real HTML, not baked into images. The screenshots show dark text on light cards with good contrast. The search input has a visible label ('Find a city'), the page headings are h1 with 'unknown city' and 'weather unavailable' messages as text, and the unknown-city message is plain sentence language. The markup sets lang="en" and uses role="search" on the form (src/render.js). Deduction: the captures do not show focus states or the quick-pick current state beyond a filled background, and the condition icon is decorative with no visible text fallback in the card, which is fine since the label is present.

The 375px capture for Tokyo, Japan shows the card, search form, and quick picks all fitting the width with no horizontal scroll or clipped text. The quick picks wrap onto two rows cleanly and the Search button stays beside its input. Buttons look reasonably touch-sized. Deduction: the screenshot does not show the unknown-city page or the forecast table at 375px, so those narrow states are unverified in this batch.

The dependency direction is mostly right. The core modules import no framework, database or HTTP code: page.js imports only places.js, theme.js and weather.js (page.js:1-3), and conditions.js and weather.js are pure. The weather service is injected into buildPage as a parameter (page.js:44), so the core declares what it needs and the edge supplies it. server.js is the only place that constructs the real service (server.js:17). Business rules are testable without a server, and the tests use a fake service (test/fakeService.js). Against that, several defects from my earlier verdicts remain unfixed. page.js still builds routes and hrefs (PATHS and href at page.js:5-7, 11-14, 24-27), which the previous review asked to move to the edge. theme.js still holds emoji icons in the core (theme.js:2-7), also flagged before. page.js formats weekday names with toLocaleDateString (page.js:9-10), so presentation formatting now sits in the core. ARCHITECTURE.md is stale: it still describes data.js, forecast.js and the 'no external API' design, and it names modules that no longer exist, so the documentation contradicts the code. The flat src/ tree names the domain only loosely (conditions, places, weatherService), and the seams added (a conditions map, a places module, a service adapter) are proportionate to the task.

Naming is clear across the new modules: conditions.js maps WMO codes to label and kind, weatherService.js is the Open-Meteo client, places.js holds the pinned picks, and the constants (REQUEST_TIMEOUT_MS, FORECAST_DAYS, GEOCODING_URL, FORECAST_URL) are named. No dead code is visible in the diff. The humid theme is replaced with fog and snow (style.css, theme.js). Two small residues remain. The thin convertTemperature wrapper I asked to drop in task #0 is still in weather.js (export const convertTemperature = (celsius, units) => UNITS[units].convert(celsius)). The unit-switch and other units logic is still repeated in cardView and forecastView in page.js, which I already flagged in task #1. The conditions test file also imports themeFor, which is a minor cross-concern. No duplication or lint measurements were supplied, so this rests on reading the code.

Nesting is shallow and each function is short. buildPage wraps the service calls in one try/catch, so network and upstream failures become a 502 'unavailable' view and an empty geocoding result becomes a 404 (page.js try block). The Open-Meteo client throws on non-OK responses and has a 5s AbortSignal timeout. The client is injectable (createWeatherService({ getJson })) and tests run offline through fakeService.js. Weak spots: the place && (await service.fetchWeather(place)) expression in page.js is terse, and the card and forecast views each recompute the other-units link. Nothing in the diff validates the shape of the upstream JSON, so a malformed response surfaces only as a generic 502. No measurements were supplied, so this rests on reading the code.

The code delivers the brief's core. Open-Meteo geocoding plus forecast (src/weatherService.js) resolves any typed city, and the card, forecast, unit toggle and quick picks all read live values. Quick picks stay pinned by coordinates only (src/places.js). WMO codes become plain labels (src/conditions.js), and unknown cities return a polite 404 page with the search form still usable (src/page.js, src/render.js). The 502 'weather unavailable' path also exists. Data quality looks plausible in the attached stills (Rome 22°C 'Overcast', Bangkok 77°F). The deduction is that the brief explicitly requires a video/webm screencast of a city being typed and live data appearing. None is attached; the deliveries are still screenshots only, so the living search and live-value flows are not demonstrated. The artifacts folder also still holds the stale pre-live screenshots (4abf1c99/desktop.png and mobile.png show the old picker and the illustrative 5-day forecast), which the previous verdict asked to be replaced. The completion note's '47 tests, about 99% coverage' claim is not independently verified here.

Several working touches go past the brief, and they are the kind a real user would notice. The forecast now uses real weekday names (conversions.test and page.js weekday(), src/page.js:~24), which fixes the 'Day 1..3' gap I flagged in task #1. The search box is pre-filled with the city just requested and carries the current units through a hidden field (src/render.js searchForm), so a visitor can re-search without losing their place. Quick picks keep the typed or pinned city highlighted and keep units (src/page.js quickPicks). A separate 502 'weather unavailable' state is distinct from the 404 'cannot find that city' state (src/page.js:buildPage, render.js unavailableBody). Open-Meteo WMO codes become plain phrases like 'light rain' and 'mostly clear' (src/conditions.js), and the geocoder result is shown with its country ('Berlin, Germany'). The fetch has a 5s timeout (src/weatherService.js). These are sensible and tidy, not memorable. The screenshots are stills, and I found no screencast or probe result showing the search interaction in motion, so the typing flow is not directly verified. Nothing here is a standout mechanism or presentation idea.

Data flow is clean. Pinned quick picks are defined once in src/places.js:2-5 as name and coordinates only, with no weather values. Every card and forecast value comes from the live Open-Meteo call in src/weatherService.js (fetchWeather, lines ~40-58) via page.js. Conditions are mapped once in src/conditions.js, and the templates contain no weather literals. Honesty of sourcing holds: the pinned cities are never given fabricated values, and the old built-in table (src/data.js) is deleted. Deductions: SPEC.md:19-29 still lists the four-city static table as 'the only source of weather' and says 'No external API calls'. ARCHITECTURE.md still describes data.js, findCity and the static dataset (sections 1, 3, 5, 11). These are now contradicting copies of the old data model, which is documentation drift. The card's current temperature and the forecast's day values are different quantities (current temp vs daily max), but the forecast view labels them just 'temperature' and nothing documents the relationship. Test fixtures in test/fakeService.js hold sample values, but they are test-only and acceptable.

The suite is behaviour-focused and asserts concrete values. Offline fake-service tests cover the card, forecast, 404, 502, landing, HEAD-less 405, 500 and escaping paths. test/weatherService.test.js checks Open-Meteo URL shape, the three-day mapping, and the error path on non-OK responses. Gaps remain. Nothing exercises the real Open-Meteo responses: the default transport tests mock fetch and return only the geocoding payload, and the forecast payload is never validated against the real schema. There is no test for malformed upstream JSON, such as a missing results key or missing current. The 502 path is tested only through the fake's throw, not through fetchWeather failing. No browser-level or screencast check was run, although the spec requires one for search and live values. The four artifacts are PNG stills, not the required webm, so the typing-and-live-data flow is unverified. The earlier requests for a browser-level check and a coverage report are still unmet; the "~99%" claim in the done note has no report behind it. Credit where due: the theme tests now sit in test/conditions.test.js, and the three-day dataset is asserted for Berlin and Rome.

The layout has a clear hierarchy. The city name, large temperature, and condition read first, and the forecast table is easy to scan, with uppercase headers, a bold accent temperature column, and a clear 'Back to Rome' action (probe:3d3a6dee-ac1c-4f16-a225-3564a31c58b3 desktop captures). The score is held down by a data problem that is visible on screen. The Rome card shows 22°C Overcast and the forecast shows 22°C / 21°C / 22°C with Tuesday to Thursday labels. The pinned dataset says Rome is 29 sunny and day 2 is 26 cloudy, so the scenario 'day 2 reads 26 and cloudy' fails in what was shown. The rendered page also adds a 'Find a city' search box with placeholder 'Berlin, Tokyo, Lagos…' that does not exist in the committed src/render.js, so the running build does not match the committed code and the widget is not limited to the four-city dataset.

The forecast uses a real table with a caption-like heading, th scope='col' and scope='row' headers, and text for condition next to the icon (aria-hidden), so the condition is not conveyed by icon alone. The city switcher is a nav with aria-label='Cities' and aria-current='page' on the active link, which is good semantics. Text contrast on the light card is strong in both captures. The current-city pill uses a fill color, but it also has the text label and aria-current, so color is not the only cue. Deductions: the 'Switch to °F' link is small and low-contrast grey-blue on the light card, and the forecast card's heading is a plain h1 with no lang issues but no description of the table.

At 375px there is no horizontal scrolling. The city pills wrap cleanly to two rows (Bangkok selected), the Full forecast button and Switch link wrap together, and the table stays readable with the condition column wrapping onto two lines. The condition cell wraps the icon and text awkwardly ('Mostly / Clear' split across lines), and the table is tight. Touch targets for the pills and buttons are reasonably sized.

The dependency rule mostly holds. data.js, forecast.js and theme.js import nothing. weather.js imports only data.js, and render.js imports nothing, so the core has no framework, I/O, clock or request types. The main defects are that presentation and routing concerns still sit in core. page.js:6 defines the URL paths PATHS = { card: '/', forecast: '/forecast' }, and page.js:9 builds query-string hrefs with URLSearchParams. The route table is duplicated in server.js:9 as PAGE_KINDS = { '/': 'card', '/forecast': 'forecast' }, so a route change must be made in two places across the core/edge line. theme.js:2-6 still holds emoji icons, which the previous verdict already flagged and which remain unfixed. page.js:37 and page.js:55 pull UNITS symbols into the view model. The change is proportionate: one new page kind handled by a small VIEWS map, with no extra interfaces, DTOs or ports. The forecast is a plain dataset slice, and the new tests exercise buildPage and renderPage without a server. ARCHITECTURE.md is stale: section 3 still describes forecast.js as 5 deterministic days and section 5 still gives the old view model shape, so the documentation contradicts the code. AGENTS.md was updated but ARCHITECTURE.md was not.

The code implements all three scenarios. Every page renders a city nav row (render.js cityNav, page.js cityLinks), so a visitor can reach every other city's card without the address bar. The card has a 'Full forecast' button to /forecast?city=… (render.js cardBody, page.js cardView). The forecast page is a table of day, temperature and condition for all three days (render.js forecastBody), with a 'Back to ' link (page.js forecastView backHref). The dataset is encoded exactly in data.js:forecast, and rome day 2 reads 26 and cloudy. Unit toggles and 404s are kept coherent with the new flow. Two gaps keep this below the top band. First, no screencast of the running widget was delivered for this task, and the task says the switching and forecast flows are judged from one, so the living flows are verified only by reading code and tests. Second, the attached screenshots (4abf1c99… folder) show the superseded UI: the old picker, the 5-day 'illustrative' forecast, and no Full forecast button. They are stale evidence and do not show this task's work. The completion note's claims (40 tests, ~99% coverage, server left on port 3000) were not verified here.

The pinned forecast lives in one place. src/data.js now carries each city's forecast array (nyc 27/24/22, sao-paulo 18/21/20, bangkok 34/32/33, rome 30/26/27), matching the task table exactly. src/forecast.js is a one-line pure derivation from city.forecast, src/page.js builds the forecast view from buildForecast, and src/render.js only formats view fields. There are no hardcoded forecast values in templates or CSS, and the old 5-day offset generator is gone, so the illustrative shadow logic was removed. Honesty of sourcing holds: every displayed forecast value comes from the dataset. Deductions: (1) SPEC.md was not updated and still describes a 5-day 'illustrative' forecast derived from the base reading (SPEC.md §3.3), which now contradicts the code. That is stale documentation of the data flow. (2) The card's current temperature (tempC: 26 for nyc, 29 for rome) is kept as a separate field from the pinned forecast's day 1 (27 and 30), so the card and forecast disagree on the same city's day 1 with no stated relationship. The task does not say how current weather relates to day 1, so this is a sourcing ambiguity rather than a fabrication.

Several working touches go past the brief, all visible in the committed code. The city nav keeps the user on the same page kind, so switching cities from a forecast stays on the forecast (src/page.js cityLinks(kind,...), tested in test/page.test.js 'switches cities within the forecast'). The forecast page has a 'Back to ' link that keeps the units (src/render.js forecastBody; page.js backHref), and a °C/°F toggle that stays on the forecast view. The forecast is a semantic table with scoped headers and a capitalized condition column (src/render.js; style.css .forecast rules). The rain condition, which the dataset needs, gets its own light and dark theme (style.css .theme-rain). These are sensible and do not break the scenarios, but they are standard patterns rather than memorable. The forecast still uses 'Day 1..3' rather than weekday names, which is a gap I already noted in the earlier build review. I did not run a probe for this verdict, so the score rests on code reading alone. The attached screenshots belong to the earlier build task and do not show this feature set.

Names are clear and the diff removes the old picker and the invented 5-day offsets. The forecast now comes from the dataset (src/data.js:4-19, src/forecast.js:1-2). Two small copy-paste spots remain. const otherUnits = units === 'c' ? 'f' : 'c'; is repeated in cardView and forecastView (src/page.js:16 and src/page.js:33), and both build an identical switchUnits object. Dead code is absent. No duplication tool output was supplied, so this rests on reading the code.

Changes are easy to follow. Page kinds map to views through a VIEWS table and PATHS constant (src/page.js:6, src/page.js:52), and the server maps routes to kinds with PAGE_KINDS (src/server.js:9). Nesting is shallow and functions are short. Unknown cities return a 404 on both routes (src/page.js:44-47, test/server.test.js). The shared unitToggle helper keeps the two bodies consistent (src/render.js:21-22). The forecast rows in data.js sit beside the current reading without a comment saying they are separate sources, which is a minor clarity gap for a newcomer.

Assertions are concrete and mostly well targeted. The render test pins the rome day-2 row with an exact regex (test/render.test.js, 'renders day, temperature and condition for each day'), and page tests check Fahrenheit conversions (bangkok [93, 90, 91]). Fallbacks are covered: 404 for unknown cities on both card and forecast routes, the landing page, and escaping. Server-level tests cover /forecast 200 and 404 (test/server.test.js, new 'opens the full forecast' and 'answers 404' cases). Gaps: the dataset is only asserted for rome and bangkok. NYC and São Paulo day values are never checked, so a typo in those rows would pass. The server forecast check uses a loose /cloudy/ match, not the day-2 row. There is no HEAD test, which was requested last time. The theme tests still sit in forecast.test.js, not their own file, and that was also requested last time. The level mix is unit plus in-process server tests only. Nothing exercises the real widget in a browser, even though the task says the switching and forecast flows must be verified in motion. The 'about 99% coverage' claim in the done note has no coverage output behind it. Credit: the player added a rain theme and tests for it, and the forecast-to-card back link and city-switch links are asserted at the view and render level.

The desktop capture of /?city=rome has a clear hierarchy: the city name, a large orange 29°C reading, then 'Sunny' and wind at descending sizes. The forecast strip is clearly labelled '(illustrative)' and sits below the main card without competing with it. The Bangkok mobile capture shows the 91°F reading as the dominant element. Minor weaknesses: the forecast labels and temperatures are small, and on mobile the 'Show weather' button wraps to its own line, left-aligned under the select, which looks slightly unbalanced.

The markup is semantic: lang="en" (src/render.js), one h1 per view, a labelled with a , sections with aria-labelledby, and decorative icons marked aria-hidden. The screenshots show strong text contrast: dark text on the light card at desktop and mobile, and the purple 91°F accent on the light thunderstorm card remains legible. The condition is conveyed in text ('Sunny', 'Thunderstorm') rather than by icon alone. Deductions: the forecast day labels are small (0.75rem), and the forecast's condition is encoded only by an emoji that is hidden from assistive tech.

At 375px the Bangkok page fits the viewport. The card, forecast strip (five columns) and picker all stay inside the width, with no visible horizontal scroll or clipped text. The CSS has a fluid max-width grid and a max-width:400px media query (public/style.css). The picker wraps cleanly, and the buttons are reasonably touch-sized. The forecast row stays in five columns and remains readable, though the small text is tight.

The suite asserts concrete values throughout, not just that code runs. Examples: Rome shows 29 and 'sunny' (test/page.test.js:6-14, test/server.test.js:24-31); Bangkok in °F shows 91 and its forecast starts at 93 (page.test.js:19-24); every dataset city is checked against its expected Fahrenheit value (weather.test.js:6-12); rounding is covered (0.3 → 33). Error paths are covered: unknown city returns 404 with 'unknown city' (server.test.js:33-37), 405 for POST, 500 when the stylesheet is unreadable (server.test.js:58-63), and escaping of a

All three contract scenarios are implemented in the committed code and look correct when traced by hand. /?city=rome renders a 29 temperature and the 'sunny' condition (src/render.js cardBody, src/page.js cardView). /?city=bangkok&units=f gives 91 via Math.round(C*9/5+32) in src/weather.js:8. /?city=atlantis returns 404 with the 'unknown city' heading (src/page.js buildPage, src/render.js unknownBody). The product also goes beyond the brief sensibly: wind in km/h, a °C/°F switch, a city picker with the current city selected, condition themes with dark mode, and a labelled 'illustrative' 5-day forecast that never changes the main card. The main deduction is a real input-handling bug. parseUnits in src/weather.js uses units in UNITS on a plain object, so inherited keys such as 'constructor' or 'toString' pass the check. The request then reaches UNITS[units].convert, which is undefined and throws, so /?city=rome&units=constructor returns a 500 rather than falling back to Celsius as the spec requires ('invalid value → c'). The completion note's claims (33 tests, about 99% coverage) were not verified by running the suite. I registered no probes, so the verdict rests on the code.

Several genuine extras beyond the three scenarios, all visible in the committed code: a per-condition theme map with icons and palettes (src/theme.js; public/style.css:12-15) that drives the page background and accent; a dark-mode palette for each condition (public/style.css:17-23); a °C/°F switch that keeps the same city (src/page.js:13-14, 40); a city picker that marks the current city and preserves the units (src/page.js:8-18; src/render.js:8-20); a 5-day forecast that is deterministic and explicitly labelled '(illustrative)' so it never contradicts the card (src/forecast.js; src/render.js:31-33); a friendly landing state and a 'unknown city' page that offers the four valid cities (src/render.js:55-69). The forecast uses generic 'Day 1..5' labels rather than weekdays, and nothing here is a memorable signature touch, so this lands in the 6-8 range rather than higher. No runtime errors are visible in the code, and the extras do not get in the user's way. I did not register a probe; the claims are verifiable from the code alone.

The dependency rule holds in the core. data.js and forecast.js have no imports. theme.js and render.js import nothing from the domain (render.js takes a plain view object and imports nothing). weather.js imports only data.js (src/weather.js:1). page.js imports only data, forecast, theme and weather (src/page.js:1-3), with no HTTP, fs or clock. The only edge modules are server.js (node:http, node:fs/promises, node:url, plus page and render) and the static CSS path. Core functions are pure and tested directly with plain calls (test/page.test.js, test/forecast.test.js), so the rules are testable without a server. The layout is proportionate to a four-city, four-route task: no interface rings, no DTO mapping layer, and the static data needs no port. Top-level modules are named for the domain (weather, forecast, page, render, server), which reads as domain-first rather than controllers/services/utils. Deductions: presentation concerns leak into the core. page.js builds URLs with URLSearchParams and hrefs (src/page.js:5), theme.js holds emoji icons (src/theme.js:2-5), and weather.js holds the '°C'/'°F' display symbols (src/weather.js:4-5). These are UI decisions living in what is meant to be the business center. The convertTemperature wrapper is a thin pass-through (src/weather.js:20-22). Since these are small, the proportion is still sound.

Names are domain-driven (tempC, windKph, cityLinks, themeFor, cardView) and the modules have one job each. The dataset, unit symbols, theme map and escaping each live in one place. Minor duplication remains: the section ... aria-labelledby card wrapper is repeated in cardBody, unknownBody and landingBody (src/render.js ~L35-50), and the card padding selector list is duplicated in the media query (public/style.css, end of file). theme-neutral is only defined inside the dark-mode block, so light-mode landing relies on :root defaults. convertTemperature is a thin wrapper over UNITS[units].convert (src/weather.js:19-21). No measured duplication or lint numbers were supplied, so this is a reading-based judgement.

Functions are short and nesting is shallow. Query input is normalised once in weather.js (findCity, parseUnits), and page.js keeps orchestration separate from rendering. The server wraps the handler in a catch that returns 500 (src/server.js), which is the right error boundary. Magic values are named (DAY_OFFSETS_C, DEFAULT_PORT, DEFAULT_UNITS). Weak spots: themeFor returns undefined for an unknown condition with no guard (src/theme.js:8-10), and the HTML template literals in render.js are long and dense, so a newcomer has to read carefully to change markup. Tests are split per module and the docs (AGENTS.md, ARCHITECTURE.md) describe the layout accurately.

The four-city dataset lives in one module, src/data.js:2-5 (CITIES, frozen). Every rendered value traces back to it: page.js reads city.tempC, condition and windKph through findCity/cardView, and the forecast is derived from the same record via buildForecast (src/forecast.js). Fahrenheit goes through the single UNITS.f.convert path in weather.js, which yields 91 for Bangkok. No shadow weather values appear in render.js or the templates; render.js only receives a finished view model. The page's only hardcoded numbers are in tests (e.g. page.test.js expects 29/91, forecast.test.js expects [30,31,29,28,27]), which is acceptable. The data layer is separated: page.js builds a view model, render.js is pure HTML, and server.js does I/O only. Deductions: SPEC.md section 2 repeats the dataset table as documentation, which is a second copy that could drift, and the forecast is synthetic. The spec asked for a deterministic forecast, though, and it is labelled 'illustrative' in render.js. I could only read the visible portion of the diff and did not check the truncated tail, which may hold further test changes.