Files
gacha-event-tracker/docs/SOURCES.md
T
Lucas WintherandClaude Opus 5 a36fa15c31 docs: narrow the unzoned-clock rule to the case it actually governs
As written, the Blue Archive rule said a wall clock with no stated zone is
unparseable and that rounding it to a day "does not save it". Taken literally
that condemns every Game8 date in this repository — those state no zone either,
and are published at day precision without anyone minding.

What those Blue Archive tables actually were is narrower and worse: three of the
five did not say which server they described. A clock whose server is unknown
cannot even be labelled with a day, because you do not know whose day it is.
That is the case the rule governs, and it now says so.

Converting an unzoned clock by picking an offset stays forbidden, which is the
part that protects event IDs: the offset moves the day, and the start's day is
half of every ID.

Recorded because the rule and the Infinity Nikki source contradicted each other,
and AGENTS.md says that disagreement is a bug to fix rather than reconcile in
your head.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-08-19 04:23:35 +02:00

31 KiB
Raw Blame History

SOURCES.md — event sources for the games still missing

A source assessment for the games named in docs/FEEDBACK.md § P1 that still have no adapter, plus § 12, a sweep of thirteen Game8 hubs asked for separately on 2026-08-19. Written 2026-08-18. Acted on 2026-08-19: four of the games below were built, one turned out to be blocked rather than merely awkward, and the rest were declined. Each section keeps its original reconnaissance and carries its outcome at the top, because the reasoning is what stops the next pass re-deriving it.

What changed on 2026-08-19, in one paragraph. Built: Girls' Frontline 2 (iopwiki, new parser), Stella Sora (stellasorawiki, new parser), Chaos Zero Nightmare (game8, no parser work) and Umamusume (game8, after widening its section and column vocabulary). Built on 2026-08-19 after the permission was read in a browser: Nikke, whose robots.txt turned out to be the standard Fandom file. Declined: Punishing: Gray Raven, Guardian Tales, Azur Lane and Aether Gazer, all as proposed. One thing not on the original list also came out of the pass: the Infinity Nikki source is stale and has no reachable replacement — see § 11. Later the same day a second, unrelated request added § 12: thirteen Game8 hubs checked for a schedule page, of which MementoMori needs no parser work at all and Fire Emblem Heroes has the best data in that sweep behind a shape the parser does not read. The other eleven are declines.

Verdicts here are proposals. Once one is acted on — built or declined — the decision belongs in AGENTS.md § Scraping conduct, whose table exists so a source is not re-litigated every pass and which .github/ISSUE_TEMPLATE/feature_request.yml points readers at. This file is the working, not the ruling.

Method

Every page below was fetched from this machine with the refresh runner's own User-Agent (gacha-event-tracker/1.0 (+https://github.com/StereotypicalCat/gacha-event-tracker)), one or two requests per host, robots.txt first. No browser-shaped headers, no proxy, no JS execution — anything that only answers a browser is treated as closed, per the uma.moe precedent. Where an existing parser could plausibly read a page, it was run against the fetched bytes offline (src/ingest/parsers/index.ts) rather than guessed at.

Two things this method cannot tell you, and both matter:

  • Whether a host answers the GitHub Actions runner. game8.co does not (AGENTS.md § Scraping conduct). The only hard evidence we hold is what CI has actually committed: git log on snapshots/ shows github-actions[bot] landing arknights.wiki.gg, endfield.wiki.gg and bluearchive.wiki (Miraheze). Fandom sources have never refreshed in CI, because robots.txt itself is challenged from a datacentre address and the gate fails closed — and as of 2026-08-19 that challenge covers every Fandom wiki from any address tried here, not just CI's. Of the 2026-08-19 additions, Stella Sora is Miraheze and so is the one likely to refresh in CI; IOP Wiki is permissive but unproven; Chaos Zero Nightmare and Umamusume are game8 and therefore blind in CI by construction.
  • Whether a page will still look like this in six weeks. Each recommendation below names the assertion canParse should make, so a redesign fails the source loudly instead of emptying a lane.

Where P1 stands

Game Status
Arknights, Reverse: 1999, Blue Archive, Persona 5X Built (2026-08-17/18)
Girls' Frontline 2, Stella Sora, Chaos Zero Nightmare, Umamusume Built (2026-08-19)
Nikke Built (2026-08-19), once the robots.txt was read in a browser — see § 3
Azur Lane Declined on conduct (azurlane.koumakan.jp ai-input=no), and both Fandom alternatives are dead archives
Punishing: Gray Raven, Guardian Tales, Aether Gazer Declined — see §§ 6, 7, 9
Infinity Nikki Rebuilt (2026-08-19) on infinity-nikki.fandom.com at day precision, replacing a Game8 page stale since August 2025 — see § 11
Silver Palace Unreleased

Summary of findings

Game Best source found Parser Refreshes in CI? Verdict
Girls' Frontline 2 iopwiki.com/wiki/GFL2_Events new (iopwiki) likely (permissive robots, unproven) BUILT 2026-08-19 — best data quality of anything here
Stella Sora stellasora.miraheze.org/wiki/Main_Page new (stellasorawiki) yes (Miraheze proven) BUILT 2026-08-19 — banners only, from the main page
Nikke nikke-…-international.fandom.com/api.php?…page=Event fandom, third template no — Fandom robots fails closed BUILT 2026-08-19 — story events and dated pickup banners, with an evidenced reset clock
Chaos Zero Nightmare game8.co/games/Chaos-Zero-Nightmare/archives/559899 existing game8 no — game8 202s the runner BUILT 2026-08-19 — no parser work, fixture-only lane
Umamusume game8.co/games/Umamusume-Pretty-Derby/archives/536311 game8 + section and column vocabulary no BUILT 2026-08-19 — cost more than "two header words"; see § 5
Punishing: Gray Raven grayravens.com/wiki/Events Decline for now — one dated string on the whole page
Guardian Tales guardian-tales.fandom.com/wiki/Events Decline — wiki stopped dating events in 2025
Azur Lane none Still declined — the Fandom alternatives are 2021 archives
Aether Gazer Do not build. The game is shutting down.
Silver Palace Unreleased; beta only

1. Girls' Frontline 2: Exilium — BUILT 2026-08-19

Source: https://iopwiki.com/wiki/GFL2_Events (IOP Wiki, the Girls' Frontline universe wiki)

Conduct. robots.txt is two lines — User-agent: * / Crawl-Delay: 20 — with no Disallow anywhere and no named-agent block. No Content-Signal header. Our 6-hour floor is three orders of magnitude inside a 20s crawl delay. The response carries Last-Modified, so If-Modified-Since will do real work here.

Shape. An <h3> per event, each followed by <table class="gf-table event-period">. All 46 of those tables share one header row, exactly:

Title | Period (start/end) | Server | Type | Comment

Cells look like this, and this is the best date material in the project after wiki.gg:

Amidst Wings of Gray | 2025-01-16 17:00 - 2025-02-06 02:59 (UTC) | EN | Character Event | …

Explicit UTC, exact precision on both boundaries, no timezone inference anywhere. Each period cell also carries an ICS widget with icsStart / icsEnd in YYYYMMDDTHHMMSS — a second, independently generated copy of the same instants, useful for cross-checking a parser rather than as the primary read.

Coverage. 145 rows, of which 51 are Server: EN. A naive regex parsed every EN period cell — zero unparsed, which is the count check AGENTS.md § Silent drops asks for. Latest EN rows:

Event Start End
Dawnforger — Part 2 2026-07-16 13:00 2026-08-05 22:59
Unto the Radiance 2026-07-16 13:00 2026-08-05 22:59
Moonshroud Requiem 2026-08-06 13:00 2026-08-26 22:59 (live today)

Hazards, and what to do about them.

  • CN and JP rows sit in the same tables as EN. This is the akwiki CN-column problem verbatim: the Chinese schedule runs a year ahead and a CN date on a Global calendar is a confidently wrong date. The Server column decides — publish EN, skip everything else. Servers seen on the page: CN, EN, JP.
  • Betas is a section, not an event type. The page's <h2>s are Main Events, Minor Events, Betas, References. Closed beta rows are dated and would parse cleanly into a calendar of things nobody can do. Fence on the heading.
  • Titles are localised per row. The Title cell on a CN row is Chinese; on the EN row it is the English name. Because we only take EN rows this resolves itself, but a parser that took the section heading as the title would inherit the CN/EN slash pair (Exotic Cadence/Amidst Wings of Gray). Take the title from the EN row's own cell.
  • canParse should assert the header rowTitle + Period (start/end) + Server — so a template change fails the source rather than emptying the lane.

Work: new parser module src/ingest/parsers/iopwiki.ts, a gfl2 GameId, a GAMES entry, one SOURCES entry, a fixture and a test. Type maps onto our EventType reasonably — Character Event → banner, Combat Event / Special Event / Main Story Event → event, Popularity Contest → other.


2. Stella Sora — BUILT 2026-08-19, from the main page and not the banner list

Source: https://stellasora.miraheze.org/ — a Miraheze wiki, so the same call as Blue Archive and hololive Dreams: /wiki/ is the surface * is allowed, /w/ and /*?action= are disallowed. CC BY-SA 4.0, no Content-Signal, no Crawl-delay for us. Miraheze is the one host family we have proof answers the CI runner.

Three pages, and the difference between them is the whole finding:

  • /wiki/Events — a list of event names with no dates at all. Useless on its own.
  • /wiki/Banner_List — two clean tables, Image | Name | Start | End, with full wall clocks: 2026-08-18 03:00:002026-09-08 02:59:00. 28 and 29 rows, current. But the page states no timezone anywhere — no UTC, no offset, nothing. This is the bluearchive.wiki hazard exactly (AGENTS.md § Blue Archive, third bullet): reading a bare wall clock as UTC invents the fact that matters, and rounding to a day does not save it because the start's day is half an event ID.
  • /wiki/Main_Page — a Current Banners module that emits the same instants as real <time datetime="2026-08-03T21:00-07:00"> elements. Zone stated, machine-readable, exact precision.

The two agree: 2026-08-03T21:00-07:00 is 2026-08-04T04:00Z, and Banner_List prints exactly 2026-08-04 04:00:00 for that banner. That is strong evidence the list is UTC — and it is still an inference, not a statement, so the honest source is the main page module, at the cost of covering only the four live banners instead of the full history.

Caveats. Banners only; the wiki dates no story events. Sourcing a wiki's main page is more fragile than sourcing an article, so canParse should assert the stellasora-home-current__banners container and the presence of <time datetime> children, and fail loudly if either goes. Note also that some banner names link to red links (/wiki/A_Breezy_Romance/2026-08-03?action=edit&redlink=1) — a ?action= URL this wiki's robots.txt disallows, so the same rule holodori.ts follows applies: refuse a href with a query and fall back to the page URL.

Worth asking: if the wiki's editors state the zone on Banner_List, that page becomes the better source immediately — full coverage, no template dependency.


3. Nikke — BUILT 2026-08-19

Outcome: built. The precondition this section set — read the wiki's robots.txt in a browser — was met on 2026-08-19, and it is the standard Fandom file: no Disallow: / for *, /api.php?action= explicitly allowed, and only Special:, User:, User_talk:, Template:, Template_talk:, Help: and UserProfile: refused. The AI crawlers it names (GPTBot, CCBot, OAI-SearchBot, ImagesiftBot) are not us. Recorded in AGENTS.md § Fandom.

Three notes for whoever touches it next, all of them corrections or additions to what follows:

  • The 403 is on robots.txt only. api.php?action=parse answers our own User-Agent with a 200 from a datacentre address; it is the robots file that is challenged. So the adapter could be written and fixture-backed from here, and what it cannot do is pass the gate at refresh time.
  • The zone is in the column header, not the cellStart(UTC+9) / End(UTC+9). That makes the header load-bearing: a table that stops naming its zone is refused rather than read as UTC.
  • Story-event starts carry no clock, only their ends do. The start keeps the day the page printed rather than being shifted nine hours into the previous one, which is the FGO rule applied to the opposite gap. Pickup banners carry a clock on both sides and convert fully.

The resetOffsets / resetHourLocal win this section predicted was real and shipped with the game: UTC+9 for every region, rolling at 05:00.

4. Chaos Zero Nightmare — BUILT 2026-08-19; the cheapest adapter available, and a ninth blind source

Source: https://game8.co/games/Chaos-Zero-Nightmare/archives/559899 ("List of All Events")

Among the games still missing, only Umamusume and CZN have a Game8 wiki hub at all — probes of game8.co/games/{Goddess-of-Victory-Nikke, Nikke, Girls-Frontline-2-Exilium, Punishing-Gray-Raven, Azur-Lane, Guardian-Tales, Stella-Sora, Aether-Gazer} all returned 404. Those games exist on Game8 only as news article hubs, which are not schedules.

The existing parser already reads it. Run offline against the fetched bytes:

parser game8 canParse: true
events: 4
 - Following the Fox's Footsteps      2026-05-27 → 2026-06-17  (day/day)
 - Beach Cafe Festival                2026-07-29 → 2026-09-30  (day/day)
 - Chasing the Remanants of Light     2026-07-29 → 2026-09-08  (day/day)
 - Virtual Tactical Simulation Hilde  2026-07-29 → 2026-08-19  (day/day)

The page lists six current events; the two the parser skips (Full-Scale Offensive Season 3, Virtual Tactical Simulation - Yuki) both print Start Date: -. No start means no event ID, so skipping them is the rule working, not a silent drop. Page last updated 2026-08-11.

So this is a SOURCES entry, a czn GameId, a fixture and a test — no parser work at all.

The cost is honest and should be stated in the commit: it becomes the ninth game8 source, and game8 returns 202 with a bot-management body to the Actions runner, so this lane will be built from a checked-in fixture in CI from day one and will go stale within a patch cycle unless the user runs bun run refresh themselves. freshness() will say so in the footer, which is what that disclosure is for — but adding a game that can only ever be as fresh as someone's last manual run is a decision, not a detail. It also worsens the per-host arithmetic in § Scraping conduct: nine game8 pages per cycle to one host.

Alternatives checked and worse: gamewith.net/chaoszeronightmare/71099 has the right table shape but is stale (its "latest events" are AprilMay 2026); czn.gg is a WordPress site whose /category/current-events/ is a blog feed, not a schedule, and whose robots.txt disallows anthropic-ai and Claude-Web by name (not us, but a signal about the site's posture).


5. Umamusume — built, and the estimate below was wrong

Outcome (2026-08-19): BUILT, off the stable List of All Banners page as recommended. Two corrections to what follows, both worth having before the next Game8 page is assessed:

  • "A few characters" was wrong. Teaching COL_TITLE the word Banner and COL_RANGE the word Availability gets you zero events. The page's schedule sits under List of All BannersAll Current Banners, which the section vocabulary did not match either, and its back catalogue sits under Previous Banners, which previous events does not match — so without that exclusion the finished rows would have gone straight onto the calendar. Beyond that, the current-banners table lays the Standard and Paid schedules side by side inside one <table> under a spanning label row, and that row is plausible enough to resolve both columns at indices no data row has. readColumnTable now decides the header by what it produces, trying row 1 only when row 0 produced nothing.
  • The blast radius was measurable, and it was zero. The worry below — that widening a parser eight sources share starts matching tables it currently ignores — is right in principle and was settled by measurement rather than by regenerating .expected.json until the tests agreed: every pinned fixture and every live snapshot was parsed before and after, and no existing source's output changed by a single event. Do that diff on any future change to game8.ts; it costs one script and it is the only thing that distinguishes a safe widening from a silent one.

uma.moe stays declined; nothing about the Turnstile gate has changed. Two other surfaces exist.

gametora.com (/umamusume/events/story-events) — cleared in AGENTS.md already. The page embeds __NEXT_DATA__ with a clean per-server dataset:

{"id":1018,"url_name":"story-event-18","name_en":"Days Flying By","start_en":1787090400, }

53 events, start_en epoch seconds, current through 2026-08-18 (today's event). Deterministic, no HTML parsing at all. But there is no end timestamp in the payload — every event would land endsAt: null, endPrecision: "unknown". That is a correct value, not a wrong one, but a lane of start-only events answers none of the questions this app exists for.

game8.co/games/Umamusume-Pretty-Derby/archives/536311 ("List of All Banners") is a stable URL — unlike the monthly August 2026 Release Schedule pages (613161), whose URL changes every month and which a static SOURCES registry cannot follow. It carries:

Banner | Rating | Availability
Seeking the Pearl (Rocket☆Star) | ★★★★☆ | 8/12/2026 - 8/21/2026

Our game8 parser returns 0 events from it, and the reason is narrow: COL_TITLE is /^(.*\b)?events?$/i so Banner misses, and COL_RANGE knows availability period but not bare Availability or Availability (UTC). Teaching it those two words is a few characters — but game8.ts serves eight live sources, so widening its column vocabulary can start matching tables on Genshin, HSR, ZZZ, WuWa, NTE, Nikki, P5X and Endfield that it currently ignores. If it is done, it is its own commit, with every existing .expected.json regenerated and re-verified against the live pages, not just regenerated to make the tests agree with the new behaviour.

Add the game8 CI blindness on top and this is a "yes, but not next" — worth doing after GFL2 and Stella Sora, and worth doing as two commits (parser vocabulary, then the source).


6. Punishing: Gray Raven — decline for now

grayravens.com is a Miraheze wiki and the community's officially supported fansite; conduct is fine (/wiki/ allowed, /w/ and ?action= disallowed, Crawl-delay only for named bots). The data is the problem.

/wiki/Events is a single patch guide — "Ongoing Events" is one version's content, written as prose. Stripped of markup, the entire 626 KB page contains exactly one date range:

Duration: July 17th to August 18th 2026.

Ordinal day, year on the second boundary only, one event per six-week patch. /wiki/PGR_Roadmap adds a Patch | Est. Release | … table — an estimate, and a start with no end. The Fandom wiki is worse: Events does not exist, Upcoming Content is 2025-era and says its dates are "ESTIMATED", and the search API returns nothing for intitle:Event.

An adapter here would publish one guessed-ish event per patch. Decline, and recheck if grayravens ever puts the schedule in a table.


7. Guardian Tales — decline

guardian-tales.fandom.com/wiki/Events fetches and parses fine. It contains no 2026 date at all — the newest dated entry across Events and Guardian_Tales/Version_history is 2025, and the wiki's own front page advertises 8 active users. This is the bluearchive.fandom.com failure in AGENTS.md § Scraping conduct: a source that parses cleanly to nothing live, which would put an empty lane on the calendar and report a broken source forever.

The official site (guardiantales.com) serves no robots.txt (404, so no restriction) but is a Next.js SPA carrying <meta name="robots" content="noindex"> with no schedule surface in the HTML.


8. Azur Lane — still no source

The two Fandom wikis the community points at as alternatives to the declined azurlane.koumakan.jp are both dead:

  • blhx.fandom.com ("the authoritative database on Azur Lane's EN server"). robots.txt served 200 and allows /api.php?action=, so conduct is clear — but Event_Calendar and Event_Information both stop in 2021. The newest event on the calendar is "Ying Swei's Spring Travels, Feb 04 2021".
  • azurlane-archive.fandom.com/wiki/Events has Current Events / Upcoming Events / Previous Events headings with nothing under any of them.

The live schedule is on koumakan, which said ai-input=no. Nothing found here changes that verdict — worth a row in AGENTS.md recording that the Fandom alternatives were checked and are archives, so the next person does not check them again.


9. Aether Gazer — do not build; the game is ending

Game8, published 2026-07-09, reporting the developer's own Bilibili statement:

Aether Gazer developer YongShi shared an official statement on Bilibili confirming that the game will receive no further content updates once Version 5.2 rolls out on July 23, 2026.

with a dated wind-down: refunds for unused Transfer Flowers 6 Aug 6 Sep 2026, a final "With You" update 17 Sep 2026, and store listings and download access removed 17 Oct 2026. Global keeps updating only until it catches up with CN.

The wiki matches. aethergazer.miraheze.org/wiki/Event_Guide_List is an image gallery of guide links with no dates on it at all — the unsupportable image-grid shape — the site was last edited 12 July 2026, and its main page carries a note from the owner about the wiki's uncertain future.

A lane that will be empty by winter, built on a wiki that does not publish dates. Skip it, and record why so the request does not come back.


10. Silver Palace — unchanged

Still unreleased. The Dichotomy Beta ran 23 July 13 August 2026; no launch date announced; projections point at late 2026 / early 2027. Nothing to scrape, as docs/FEEDBACK.md already says.


11. Infinity Nikki — BUILT 2026-08-19, at day precision, replacing a stale source

Outcome: option (b), chosen by the repository owner. The lane now reads infinity-nikki.fandom.com and the Game8 entry has been removed from SOURCES — a source whose every row is wrong is not a second opinion. Seven current 2026 events replace five year-old ones that had endsAt: null and rendered as live indefinitely. The Game8 fixture stays in fixtures/nikki/ as the only regression test for that parser's labelled Start: … End: Permanent shape, driven through the parser directly now that no adapter routes it.

The clock is read and discarded; the printed date is published at day precision. That invents nothing and treats these cells exactly as every Game8 date already is. The Blue Archive rule in AGENTS.md has been narrowed to match, because as written it forbade this: it now governs a clock whose server is unknown — which is what those Blue Archive tables actually were, three of five not saying which server they described — rather than any clock without a stated zone. What remains forbidden is converting an unzoned clock by picking an offset, since the offset moves the day and the start's day is half an event ID.

This game already had an adapter, which is why it was not assessed on 2026-08-18. It should have been. game8.co/games/Infinity-Nikki/archives/487445 fetched, parsed, and passed every test — and the page itself said Last updated on: August 31, 2025, with zero occurrences of the string 2026. That is the lesson worth keeping from this section: a stale page is not a broken one, so nothing in the pipeline flags it. Check when a page was last updated, not only whether it parses.

The replacement. infinitynikki.fandom.com 301s to infinity-nikki.fandom.com, whose robots.txt was read in a browser and is the standard Fandom file — same permission as Nikke (§ 3). The wiki is maintained: pages edited as recently as 2026-08-17, and its Event page mentions 2026 seven hundred and thirty-one times.

Current Events / Upcoming Events / Permanent Events / Past Events   (h2 headings)
<table class="article-table">  Event | Duration | Description | Type
   Deep Breakthrough    July 20, 2026 04:00  August 10, 2026 03:49   ...   Double Rewards

The missing fact was the timezone. The Duration column names no zone. What the page does say, elsewhere and in prose: version launches dated (UTC-7); Rewards reset daily at 04:00 (Server Time); and durations running 04:00 → 03:59, which only lands on a reset boundary if the column is server-local. Strong circumstantial evidence for UTC-7, and still circumstantial — which is why the clock is dropped rather than converted.

Two shapes the parser handles, both of which would otherwise lose or corrupt a row:

  • Titles come from a link's title attribute, so they need entity-decoding by hand — an attribute never passes through text(), and Alison&#39;s Travel Shop would otherwise become the slug alison-39-s-travel-shop, which is a localStorage key. The ingest sanitiser catches exactly this, and a parser that needs repairing on its own fixture has a bug.
  • Recurring events live on dated subpages, so a title arrives as Deep Breakthrough/2026-07-20 or, behind a red link, as the file name Alison's Travel Shop 2026-08-06.png. That date names the run rather than the event and is stripped; the start date already keys the runs apart.

Asking the wiki's editors to state the zone on the Duration column would upgrade this source to exact instants, and remains the cheapest improvement available to it.

What every one of these costs, beyond the source

Adding a game is never only a SOURCES entry:

  • a GameId in src/shared/schema.ts — an enum value that becomes the first segment of every completion key for that game, forever;
  • a GAMES entry in src/shared/games.ts (name, short, hue, studio, dailyTasks), plus resetOffsets / resetHourLocal only where the source states the clock — Nikke's is evidenced, Stella Sora's is not stated on the page we would read;
  • a fixture in fixtures/<game>/ and a test asserting parsed output, one commit per game (docs/FEEDBACK.md P1 step 4);
  • the lane arriving switched off for existing readers via adoptNewLanes, which is automatic but worth remembering when checking the app after a build.

Steps 1 through 5 were done on 2026-08-19, and step 6's declines are now written into AGENTS.md § Scraping conduct. What is left is one decision and two builds:

Nothing is queued. Every game assessed in this file is now built or declined with its reasoning recorded, and the two decisions this pass raised — Nikke's permission and Infinity Nikki's timezone — have both been made. 2. MementoMori (§ 12a) — the cheapest adapter available today: a GameId, a GAMES entry, one SOURCES entry, a fixture and a test, with no parser change. Seven events parse out of a seven-row table and six of them are live. 3. Fire Emblem Heroes (§ 12b) — better data and a real cost: a ninth Game8 column shape, a single-date MM/DD/YYYY reader, and a decision about the 180-day rule, which one legitimate seven-month banner breaks. Two commits, parser then source, with the vocabulary widening diffed across every fixture and snapshot as Umamusume's was.

Below that, in descending order of value: re-check grayravens.com if it ever puts its schedule in a table, and re-check Azur Lane if koumakan ever drops ai-input=no. Neither is worth a pass until something changes upstream.

Appendix — reproducing the checks

UA='gacha-event-tracker/1.0 (+https://github.com/StereotypicalCat/gacha-event-tracker)'

# conduct
curl -sS -A "$UA" https://iopwiki.com/robots.txt
curl -sS -A "$UA" -D - -o /dev/null https://stellasora.miraheze.org/wiki/Main_Page   # Content-Signal?

# the pages
curl -sS -A "$UA" https://iopwiki.com/wiki/GFL2_Events                > gfl2.html
curl -sS -A "$UA" https://stellasora.miraheze.org/wiki/Main_Page      > stellasora.html
curl -sS -A "$UA" 'https://nikke-goddess-of-victory-international.fandom.com/api.php?action=parse&page=Event&prop=text&formatversion=2&format=json' > nikke.json
curl -sS -A "$UA" https://game8.co/games/Chaos-Zero-Nightmare/archives/559899 > czn.html

# the § 12 sweep: hubs first, then the schedule page each one turned out to have.
# `--rate 30/m` keeps one request every 2s to a single host, per AGENTS.md § Scraping conduct.
for g in Black-Beacon Brawl-Stars Destiny-Rising Diablo-Immortal Epic-Seven \
         fire-emblem-heroes Fire-Emblem-Shadows gundam-uce MementoMori \
         Mongil-Star-Dive Pokemon-Champions Pokemon-UNITE Tower-of-Fantasy; do
  args+=(-o "hub-$g.html" "https://game8.co/games/$g")
done
curl -sS --rate 30/m -A "$UA" --compressed -w '%{http_code} %{url_effective}\n' "${args[@]}"

# how stale is it? — the first question, and the cheapest
grep -o 'Last updated on:[^<]*' mmori.html

# does an existing parser read it? (offline, once a source id exists)
bun run parse czn-game8-events czn.html --json

Facts stated above that a future reader may want to re-check, with how they were established:

Claim How it was checked
game8 has no wiki hub for Nikke, GFL2, PGR, Azur Lane, Guardian Tales, Stella Sora, Aether Gazer HEAD https://game8.co/games/<Name> → 404 for each, 200 for Umamusume-Pretty-Derby and Chaos-Zero-Nightmare
The game8 parser already reads the CZN page ran game8Parser.parse against the fetched bytes: 4 events, 2 correctly skipped for a missing start
fandom.ts, akwiki, wikigg, bawiki, holodori cannot read the new pages canParse returned false for every combination tried
CI can fetch wiki.gg and Miraheze git log --name-only -- snapshots/github-actions[bot] commits carry arknights-akwiki, endfield-wikigg, ba-bawiki
A Fandom robots.txt 403 means the source is skipped, not failed src/ingest/robots.ts RobotsCache.loadstatus >= 400 other than 404/410 → usable: false
All thirteen § 12 hubs exist GET https://game8.co/games/<Name>200 for every one
The game8 parser already reads the MementoMori events page ran game8Parser.parse against the fetched bytes: 7 events from the 7 data rows of Current Events | Duration
The FEH page is unreadable by shape, not by two header words columnLayout finds no range column at all — Availability is a start and End is its own column, and readStartEndTable wants the rowspan Start/End pair
Game8's structural check rejects the Pokémon UNITE page game8Parser.canParsefalse; the page has 25 a-table matches and zero a-header--3
A hub's nav is not an index of its pages the UNITE, Champions, Gundam and Black Beacon schedule pages exist and are linked from none of the hub navigation scanned; found by web search