diff --git a/packages/obsidian/src/library/LibraryController.ts b/packages/obsidian/src/library/LibraryController.ts
index 9162eda..9b01b2f 100644
--- a/packages/obsidian/src/library/LibraryController.ts
+++ b/packages/obsidian/src/library/LibraryController.ts
@@ -4,7 +4,7 @@ import { comicSpec } from 'packages/obsidian/src/library/comic';
 import { gameSpec } from 'packages/obsidian/src/library/game';
 import { libraryFolderResolve, libraryFolderSync, type LibraryEngineDeps, type LibraryReport, type LibraryResolveReport } from 'packages/obsidian/src/library/LibraryEngine';
 import { mangaSpec } from 'packages/obsidian/src/library/manga';
-import type { HttpJsonFn, HttpTextFn, MediaTypeSpec, SpecDeps } from 'packages/obsidian/src/library/types';
+import type { HttpJsonFn, HttpPostJsonFn, HttpTextFn, MediaTypeSpec, SpecDeps } from 'packages/obsidian/src/library/types';
 import type MediaDbPlugin from 'packages/obsidian/src/main';
 import { obsidianFetch } from 'packages/obsidian/src/utils/Utils';
 import { TmdbRateLimitError } from 'packages/obsidian/src/watchlist/SyncEngine';
@@ -91,12 +91,35 @@ export class LibraryController {
 		};
 	}
 
+	// POST-JSON counterpart of makeHttp -- needed for GraphQL APIs (AniList) that require a
+	// POST body instead of query-string params. Same 429/error handling as makeHttp.
+	private makeHttpPostJson(): HttpPostJsonFn {
+		return async (url: string, body: unknown, headers: Record<string, string>): Promise<any> => {
+			const res = await obsidianFetch(
+				new Request(url, {
+					method: 'POST',
+					body: JSON.stringify(body),
+					headers: { 'Content-Type': 'application/json', Accept: 'application/json', ...headers },
+				}),
+			);
+			if (res.status === 429) {
+				const err = new TmdbRateLimitError(`Library API 429 for ${url}`);
+				const ra = Number(res.headers.get('retry-after'));
+				err.retryAfterMs = Number.isFinite(ra) && ra > 0 ? ra * 1000 : 2000;
+				throw err;
+			}
+			if (res.status !== 200) throw new Error(`Library API ${res.status} for ${url}`);
+			return await res.json();
+		};
+	}
+
 	/** dryRun=true routes flip notifications to the log instead of a real Notice -- a dry-run
 	 * preview shouldn't pop user-facing notices for changes that were never actually written. */
 	private makeSpecDeps(dryRun = false): SpecDeps {
 		return {
 			http: this.makeHttp(),
 			httpText: this.makeHttpText(),
+			httpPostJson: this.makeHttpPostJson(),
 			getKey: name => this.getKey(name),
 			log: msg => console.log(`[media-db-library] ${msg}`),
 			notify: msg => {
diff --git a/packages/obsidian/src/library/manga.ts b/packages/obsidian/src/library/manga.ts
index 3e29880..61faddc 100644
--- a/packages/obsidian/src/library/manga.ts
+++ b/packages/obsidian/src/library/manga.ts
@@ -3,9 +3,61 @@ import { parseFeed, latestChapter } from 'packages/obsidian/src/library/rss';
 import { stripQuotes, extractMyNotes, extractCustomSections, type CustomSection } from 'packages/obsidian/src/watchlist/parse';
 import { yamlList, yamlScalar, quotedOrNull } from 'packages/obsidian/src/watchlist/yaml';
 import { deriveReadStatus, deriveRating, parseNumOrNull } from 'packages/obsidian/src/library/convert';
+import { TmdbRateLimitError } from 'packages/obsidian/src/watchlist/SyncEngine';
 
 const JIKAN_BASE = 'https://api.jikan.moe/v4';
 const MANGADEX_BASE = 'https://api.mangadex.org';
+const ANILIST_BASE = 'https://graphql.anilist.co';
+
+// AniList field selection shared by the search + both by-id queries below. `status` comes back
+// as an ALL_CAPS enum (mapped via ANILIST_STATUS_MAP); dates come back as {year,month,day}
+// objects (mapped via aniListDate); description is HTML (mapped via stripAniListHtml).
+const ANILIST_MEDIA_FIELDS = `
+	id
+	idMal
+	title { romaji english }
+	status
+	chapters
+	volumes
+	averageScore
+	genres
+	staff(perPage: 6) {
+		edges { role node { name { full } } }
+	}
+	startDate { year month day }
+	endDate { year month day }
+	description(asHtml: false)
+	coverImage { large }
+	siteUrl
+`;
+
+const ANILIST_SEARCH_QUERY = `query ($q: String) {
+	Page(perPage: 8) {
+		media(search: $q, type: MANGA) {
+			${ANILIST_MEDIA_FIELDS}
+		}
+	}
+}`;
+
+const ANILIST_BY_ID_QUERY = `query ($id: Int) {
+	Media(id: $id, type: MANGA) {
+		${ANILIST_MEDIA_FIELDS}
+	}
+}`;
+
+const ANILIST_BY_IDMAL_QUERY = `query ($id: Int) {
+	Media(idMal: $id, type: MANGA) {
+		${ANILIST_MEDIA_FIELDS}
+	}
+}`;
+
+const ANILIST_STATUS_MAP: Record<string, string> = {
+	RELEASING: 'Publishing',
+	FINISHED: 'Finished',
+	HIATUS: 'On Hiatus',
+	CANCELLED: 'Canceled',
+	NOT_YET_RELEASED: 'Not Yet Published',
+};
 
 export interface MangaRecord {
 	title: string;
@@ -25,6 +77,7 @@ export interface MangaRecord {
 	publishedFrom: string | null;
 	publishedTo: string | null;
 	malId: string;
+	anilistId: string;
 	mangadexId: string;
 	rss: string;
 	poster: string | null;
@@ -82,6 +135,7 @@ export function buildManga(jikan: any, prev: Record<string, string>): MangaRecor
 		publishedFrom: jikan.published?.from ? String(jikan.published.from).slice(0, 10) : null,
 		publishedTo: jikan.published?.to ? String(jikan.published.to).slice(0, 10) : null,
 		malId: jikan.mal_id != null ? String(jikan.mal_id) : '',
+		anilistId: stripQuotes(prev['anilist_id']), // Jikan has no AniList concept -- carried through untouched
 		mangadexId,
 		rss,
 		poster: jikan.images?.jpg?.large_image_url ?? null,
@@ -90,6 +144,118 @@ export function buildManga(jikan: any, prev: Record<string, string>): MangaRecor
 	};
 }
 
+/** AniList `{year,month,day}` date object -> ISO `YYYY-MM-DD`, or null when any part is missing
+ * (AniList leaves in-progress end dates as all-null rather than omitting the object). */
+function aniListDate(d: { year?: number | null; month?: number | null; day?: number | null } | null | undefined): string | null {
+	if (!d || d.year == null || d.month == null || d.day == null) return null;
+	const mm = String(d.month).padStart(2, '0');
+	const dd = String(d.day).padStart(2, '0');
+	return `${d.year}-${mm}-${dd}`;
+}
+
+/** AniList `description(asHtml:false)` still carries a handful of literal tags (`<br>`, `<i>`,
+ * etc.) and HTML entities -- strip both down to plain text for the synopsis field. */
+function stripAniListHtml(html: string | null | undefined): string {
+	if (!html) return '';
+	return html
+		.replace(/<br\s*\/?>/gi, '\n')
+		.replace(/<\/?[^>]+(>|$)/g, '')
+		.replace(/&nbsp;/gi, ' ')
+		.replace(/&amp;/gi, '&')
+		.replace(/&lt;/gi, '<')
+		.replace(/&gt;/gi, '>')
+		.replace(/&quot;/gi, '"')
+		.replace(/&#39;/gi, "'")
+		.trim();
+}
+
+/**
+ * Pure mapper: AniList `Media` payload (the unwrapped `data.Media` object) + prev frontmatter ->
+ * canonical MangaRecord. Mirrors `buildManga`'s user-field preservation contract exactly; only
+ * the upstream field mapping differs. `mal_id` prefers AniList's `idMal` bridge but falls back to
+ * whatever mal_id the note already carried -- AniList entries without a MAL counterpart (e.g.
+ * webtoons) must not clobber a manually-set mal_id.
+ */
+export function buildMangaFromAniList(media: any, prev: Record<string, string>): MangaRecord {
+	const romaji: string = media.title?.romaji ?? '';
+	const english: string = media.title?.english ?? '';
+	const engName = english && english !== romaji ? english : '';
+
+	const { rating, ratingStars } = deriveRating(prev);
+	const readStatus = deriveReadStatus(prev);
+	const lastReadChapter = stripQuotes(prev['last_read_chapter']);
+	const rss = stripNullSentinel(stripQuotes(prev['rss']));
+	const mangadexId = stripQuotes(prev['mangadex_id']);
+
+	const score = typeof media.averageScore === 'number' ? Math.round(media.averageScore) / 10 : null;
+
+	const malId = media.idMal != null ? String(media.idMal) : stripQuotes(prev['mal_id']);
+	const anilistId = media.id != null ? String(media.id) : stripQuotes(prev['anilist_id']);
+
+	const authors: string[] = ((media.staff?.edges ?? []) as any[])
+		.filter(e => typeof e?.role === 'string' && e.role.includes('Story'))
+		.map(e => e?.node?.name?.full)
+		.filter(Boolean);
+
+	return {
+		title: romaji,
+		engName,
+		readStatus,
+		rating,
+		ratingStars,
+		lastReadChapter,
+		latestChapter: parseNumOrNull(prev['latest_chapter']),
+		lastChapterDate: stripNullSentinel(stripQuotes(prev['last_chapter_date'])),
+		chapters: media.chapters ?? null,
+		volumes: media.volumes ?? null,
+		status: ANILIST_STATUS_MAP[media.status as string] ?? '',
+		authors,
+		genre: (media.genres ?? []).filter(Boolean),
+		score,
+		publishedFrom: aniListDate(media.startDate),
+		publishedTo: aniListDate(media.endDate),
+		malId,
+		anilistId,
+		mangadexId,
+		rss,
+		poster: media.coverImage?.large ?? null,
+		// existing url convention = MAL page; only fall back to AniList's own page when the note
+		// (still) has no mal_id at all -- e.g. AniList-only webtoons with no MAL counterpart
+		url: malId ? `https://myanimelist.net/manga/${malId}` : (media.siteUrl ?? ''),
+		synopsis: stripAniListHtml(media.description),
+	};
+}
+
+/** `Media(id|idMal: ...)` fetch -- throws (never returns a partial/null record) on GraphQL
+ * errors or a missing `Media` so callers can uniformly catch-and-fallback to Jikan. */
+async function fetchAniListMedia(deps: SpecDeps, query: string, variables: Record<string, unknown>): Promise<any> {
+	const res = await deps.httpPostJson(ANILIST_BASE, { query, variables }, {});
+	if (res?.errors?.length) throw new Error(`AniList error: ${res.errors[0]?.message ?? 'unknown'}`);
+	const media = res?.data?.Media;
+	if (!media) throw new Error('AniList: media not found');
+	return media;
+}
+
+/** `Page.media` search -- unlike `fetchAniListMedia`, a genuine empty result set is NOT an
+ * error (it's a legitimate "no matches", same as Jikan's search returning `data: []`); only
+ * GraphQL/network failures throw. */
+async function fetchAniListSearch(deps: SpecDeps, q: string): Promise<any[]> {
+	const res = await deps.httpPostJson(ANILIST_BASE, { query: ANILIST_SEARCH_QUERY, variables: { q } }, {});
+	if (res?.errors?.length) throw new Error(`AniList error: ${res.errors[0]?.message ?? 'unknown'}`);
+	return res?.data?.Page?.media ?? [];
+}
+
+function aniListTitles(m: any): string[] {
+	const titles = [m?.title?.romaji, m?.title?.english];
+	return titles.filter(Boolean).map((t: string) => String(t).toLowerCase());
+}
+
+/** Top-candidate identifying info for ambiguous-resolve logging (AniList side). */
+function candidateAniListSummary(m: any): string {
+	const year = m?.startDate?.year ? String(m.startDate.year) : '';
+	return `anilist_id=${m?.id ?? ''} «${m?.title?.romaji ?? ''}»${year ? ` (${year})` : ''}`;
+}
+
 export function renderManga(r: MangaRecord, myNotes: string, customSections: CustomSection[] = []): string {
 	const fm = [
 		'---',
@@ -111,6 +277,7 @@ export function renderManga(r: MangaRecord, myNotes: string, customSections: Cus
 		`published_from: ${r.publishedFrom ? r.publishedFrom : 'null'}`,
 		`published_to: ${r.publishedTo ? r.publishedTo : 'null'}`,
 		`mal_id: ${r.malId}`,
+		`anilist_id: ${r.anilistId}`,
 		`mangadex_id: ${r.mangadexId}`,
 		`rss: ${quotedOrNull(r.rss)}`,
 		`poster: ${quotedOrNull(r.poster)}`,
@@ -234,29 +401,66 @@ export const mangaSpec: MediaTypeSpec = {
 	itemType: 'manga_item',
 	folderSettingKey: 'libraryMangaFolder',
 	enabledSettingKey: 'libraryMangaEnabled',
-	throttleMs: 350,
+	throttleMs: 700, // AniList's keyless rate limit is 90 req/min
 
 	hasId(fm: Record<string, string>): boolean {
-		return !!stripQuotes(fm['mal_id']);
+		return !!stripQuotes(fm['mal_id']) || !!stripQuotes(fm['anilist_id']);
 	},
 
 	isActive(fm: Record<string, string>): boolean {
 		const malId = stripQuotes(fm['mal_id']);
+		const anilistId = stripQuotes(fm['anilist_id']);
 		const status = stripQuotes(fm['status']);
-		if (!malId || !status) return true; // never enriched -> needs first pass
+		if ((!malId && !anilistId) || !status) return true; // never enriched -> needs first pass
 		if (status === 'Publishing' || status === 'On Hiatus') return true;
 		if (stripQuotes(fm['read_status']) === 'Reading') return true;
 		if (stripNullSentinel(stripQuotes(fm['rss']))) return true;
 		return false; // Finished + Read/Unread/Dropped -> static
 	},
 
+	// AniList-primary: search AniList first (Page search, unique-exact vs romaji+english). A
+	// unique hit patches anilist_id (+ mal_id via idMal, when AniList has a MAL bridge for it).
+	// AniList miss/ambiguous/throw all fall back to the existing Jikan title-search resolve.
+	// TmdbRateLimitError is never treated as a fallback trigger -- it propagates so the engine's
+	// withRateLimitRetry wrapper (around the whole resolve() call) retries instead of masking a
+	// transient 429 as an AniList miss.
 	async resolve(ctx: LibraryNoteCtx, deps: SpecDeps): Promise<Record<string, string> | null> {
 		const query = stripQuotes(ctx.frontmatter['title']) || ctx.filename.replace(/\.md$/, '');
 		if (!query) return null;
+
+		let anilistResults: any[] = [];
+		try {
+			anilistResults = await fetchAniListSearch(deps, query);
+		} catch (e) {
+			if (e instanceof TmdbRateLimitError) throw e;
+			deps.log(`manga anilist resolve failed for "${query}": ${String(e)}`);
+			anilistResults = [];
+		}
+
+		const q = query.toLowerCase();
+		const exactAni = anilistResults.filter(m => aniListTitles(m).includes(q));
+		const pickAni = exactAni.length === 1 ? exactAni[0] : exactAni.length === 0 && anilistResults.length === 1 ? anilistResults[0] : null;
+
+		if (pickAni) {
+			const patch: Record<string, string> = { anilist_id: String(pickAni.id) };
+			if (pickAni.idMal != null) patch.mal_id = String(pickAni.idMal);
+			if (!stripQuotes(ctx.frontmatter['mangadex_id'])) {
+				const mangadexId = await resolveMangadexId(query, deps);
+				if (mangadexId) patch.mangadex_id = mangadexId;
+			}
+			return patch;
+		}
+
+		if (anilistResults.length > 1) {
+			deps.log(`ambiguous "${query}": candidates: ${anilistResults.slice(0, 3).map(candidateAniListSummary).join('; ')}`);
+		}
+
+		// Jikan fallback (unchanged behavior)
 		let malId: string | null;
 		try {
 			malId = await resolveMalId(query, deps);
 		} catch (e) {
+			if (e instanceof TmdbRateLimitError) throw e;
 			deps.log(`manga resolve failed for "${query}": ${String(e)}`);
 			return null;
 		}
@@ -271,22 +475,41 @@ export const mangaSpec: MediaTypeSpec = {
 		return patch;
 	},
 
+	// AniList-primary: anilist_id present -> fetch by id; else mal_id -> fetch by idMal bridge.
+	// AniList throwing (network error, GraphQL error, not-found) falls back to the existing Jikan
+	// full-record fetch when a mal_id is available; with no mal_id there's no fallback path, so
+	// the sync is skipped (skippedNoData upstream). TmdbRateLimitError propagates uncaught (same
+	// retry-not-fallback reasoning as resolve() above).
 	async sync(ctx: LibraryNoteCtx, deps: SpecDeps): Promise<{ content: string; flipped: boolean } | null> {
 		const fm = ctx.frontmatter;
 		const malId = stripQuotes(fm['mal_id']);
-		if (!malId) return null; // needs resolve() first
+		const anilistId = stripQuotes(fm['anilist_id']);
+		if (!malId && !anilistId) return null; // needs resolve() first
 
-		let jikanData: any;
+		let record: MangaRecord;
 		try {
-			const res = await deps.http(`${JIKAN_BASE}/manga/${malId}/full`, {});
-			jikanData = res?.data;
+			const media = anilistId
+				? await fetchAniListMedia(deps, ANILIST_BY_ID_QUERY, { id: Number(anilistId) })
+				: await fetchAniListMedia(deps, ANILIST_BY_IDMAL_QUERY, { id: Number(malId) });
+			record = buildMangaFromAniList(media, fm);
 		} catch (e) {
-			deps.log(`manga jikan fetch failed (mal_id ${malId}): ${String(e)}`);
-			return null;
-		}
-		if (!jikanData) return null;
+			if (e instanceof TmdbRateLimitError) throw e;
+			deps.log(`manga anilist fetch failed (${anilistId ? `anilist_id ${anilistId}` : `mal_id ${malId}`}): ${String(e)}`);
+			if (!malId) return null; // no mal_id -> no Jikan fallback possible
+
+			let jikanData: any;
+			try {
+				const res = await deps.http(`${JIKAN_BASE}/manga/${malId}/full`, {});
+				jikanData = res?.data;
+			} catch (e2) {
+				if (e2 instanceof TmdbRateLimitError) throw e2;
+				deps.log(`manga jikan fetch failed (mal_id ${malId}): ${String(e2)}`);
+				return null;
+			}
+			if (!jikanData) return null;
+			record = buildManga(jikanData, fm);
+		}
 
-		const record = buildManga(jikanData, fm);
 		const prevStatus = stripQuotes(fm['status']);
 		const prevLatestChapter = parseNumOrNull(fm['latest_chapter']);
 		const prevLastChapterDate = stripNullSentinel(stripQuotes(fm['last_chapter_date']));
diff --git a/packages/obsidian/src/library/types.ts b/packages/obsidian/src/library/types.ts
index e326e2b..0a60417 100644
--- a/packages/obsidian/src/library/types.ts
+++ b/packages/obsidian/src/library/types.ts
@@ -1,5 +1,6 @@
 export type HttpJsonFn = (url: string, headers: Record<string, string>) => Promise<any>;
 export type HttpTextFn = (url: string, headers: Record<string, string>) => Promise<string>;
+export type HttpPostJsonFn = (url: string, body: unknown, headers: Record<string, string>) => Promise<any>;
 
 export interface LibraryNoteCtx {
 	frontmatter: Record<string, string>;
@@ -22,6 +23,7 @@ export interface MediaTypeSpec {
 export interface SpecDeps {
 	http: HttpJsonFn;
 	httpText: HttpTextFn;
+	httpPostJson: HttpPostJsonFn;
 	getKey(name: 'rawg' | 'comicvine'): string; // '' when unset
 	log(msg: string): void;
 	notify(msg: string): void;
diff --git a/packages/obsidian/src/utils/Utils.ts b/packages/obsidian/src/utils/Utils.ts
index 5e8a804..9a7818a 100644
--- a/packages/obsidian/src/utils/Utils.ts
+++ b/packages/obsidian/src/utils/Utils.ts
@@ -286,10 +286,16 @@ export async function obsidianFetch(input: Request): Promise<Response> {
 		obs_headers[key] = value;
 	});
 
+	// Request bodies (e.g. POST JSON) must reach requestUrl -- read them off the Request once
+	// here. GET/HEAD requests have no body, .text() resolves '' for them, so `body` stays
+	// undefined and existing GET-only call sites are unaffected.
+	const rawBody = await input.text();
+
 	const res = await requestUrl({
 		url: input.url,
 		method: input.method,
 		headers: obs_headers,
+		body: rawBody || undefined,
 		throw: false, // Do not throw on error, handle it manually
 	});
 
diff --git a/tests/fixtures/anilist-manga-csm.json b/tests/fixtures/anilist-manga-csm.json
new file mode 100644
index 0000000..7455d11
--- /dev/null
+++ b/tests/fixtures/anilist-manga-csm.json
@@ -0,0 +1,30 @@
+{
+	"data": {
+		"Media": {
+			"id": 105778,
+			"idMal": 116778,
+			"title": {
+				"romaji": "Chainsaw Man",
+				"english": "Chainsaw Man"
+			},
+			"status": "RELEASING",
+			"chapters": null,
+			"volumes": null,
+			"averageScore": 85,
+			"genres": ["Action", "Comedy", "Horror", "Supernatural"],
+			"staff": {
+				"edges": [
+					{ "role": "Story & Art", "node": { "name": { "full": "Tatsuki Fujimoto" } } },
+					{ "role": "Letterer", "node": { "name": { "full": "Some Letterer" } } }
+				]
+			},
+			"startDate": { "year": 2018, "month": 12, "day": 3 },
+			"endDate": { "year": null, "month": null, "day": null },
+			"description": "Denji has been robbed of a normal life ever since his Chainsaw Devil, Pochita, merged with him.<br><i>Now he hunts devils for a living.</i>",
+			"coverImage": {
+				"large": "https://s4.anilist.co/file/anilistcdn/media/manga/cover/large/bx105778-JCftt5T5vNAY.jpg"
+			},
+			"siteUrl": "https://anilist.co/manga/105778"
+		}
+	}
+}
diff --git a/tests/fixtures/canonical-manga.md b/tests/fixtures/canonical-manga.md
index f892d3d..d7a0950 100644
--- a/tests/fixtures/canonical-manga.md
+++ b/tests/fixtures/canonical-manga.md
@@ -17,6 +17,7 @@ score: 8.7
 published_from: 2018-12-03
 published_to: null
 mal_id: 116778
+anilist_id: 105778
 mangadex_id: abc-123
 rss: "https://example.com/csm-feed.xml"
 poster: "https://cdn.myanimelist.net/images/manga/3/216464l.jpg"
diff --git a/tests/library-book.test.ts b/tests/library-book.test.ts
index 3ab039f..6c3e543 100644
--- a/tests/library-book.test.ts
+++ b/tests/library-book.test.ts
@@ -15,6 +15,7 @@ function makeDeps(overrides: Partial<SpecDeps> = {}): SpecDeps & { notifyCalls:
 	return {
 		http: async () => ({}),
 		httpText: async () => '',
+		httpPostJson: async () => ({}),
 		getKey: () => '',
 		log: (msg: string) => {
 			logCalls.push(msg);
diff --git a/tests/library-comic.test.ts b/tests/library-comic.test.ts
index 2d6e2aa..dd01f60 100644
--- a/tests/library-comic.test.ts
+++ b/tests/library-comic.test.ts
@@ -15,6 +15,7 @@ function makeDeps(overrides: Partial<SpecDeps> = {}): SpecDeps & { notifyCalls:
 	return {
 		http: async () => ({}),
 		httpText: async () => '',
+		httpPostJson: async () => ({}),
 		getKey: () => '',
 		log: (msg: string) => {
 			logCalls.push(msg);
diff --git a/tests/library-controller.test.ts b/tests/library-controller.test.ts
index 7ca14fb..e5bfac1 100644
--- a/tests/library-controller.test.ts
+++ b/tests/library-controller.test.ts
@@ -77,7 +77,7 @@ describe('maybeCatchUp', () => {
 });
 
 function fakeSpecDeps() {
-	return { http: async () => ({}), httpText: async () => '', getKey: () => '', log: () => {}, notify: () => {} };
+	return { http: async () => ({}), httpText: async () => '', httpPostJson: async () => ({}), getKey: () => '', log: () => {}, notify: () => {} };
 }
 
 function deferredDeps(): { deps: LibraryEngineDeps; listNotesCalls: () => number; release: () => void } {
diff --git a/tests/library-engine.test.ts b/tests/library-engine.test.ts
index a1fcd24..d089fe6 100644
--- a/tests/library-engine.test.ts
+++ b/tests/library-engine.test.ts
@@ -75,6 +75,7 @@ function makeDeps(notes: { path: string; content: string }[], specDeps: Partial<
 		specDeps: {
 			http: async () => ({}),
 			httpText: async () => '',
+			httpPostJson: async () => ({}),
 			getKey: () => '',
 			log: () => {},
 			notify: () => {},
diff --git a/tests/library-game.test.ts b/tests/library-game.test.ts
index 32486e8..a37c60b 100644
--- a/tests/library-game.test.ts
+++ b/tests/library-game.test.ts
@@ -15,6 +15,7 @@ function makeDeps(overrides: Partial<SpecDeps> = {}): SpecDeps & { notifyCalls:
 	return {
 		http: async () => ({}),
 		httpText: async () => '',
+		httpPostJson: async () => ({}),
 		getKey: () => '',
 		log: (msg: string) => {
 			logCalls.push(msg);
diff --git a/tests/library-manga.test.ts b/tests/library-manga.test.ts
index 5a9694e..e464f58 100644
--- a/tests/library-manga.test.ts
+++ b/tests/library-manga.test.ts
@@ -1,12 +1,15 @@
 import { describe, expect, test } from 'bun:test';
 import { readFileSync } from 'node:fs';
 import { join } from 'node:path';
-import { buildManga, renderManga, mangaSpec, type MangaRecord } from 'packages/obsidian/src/library/manga';
+import { buildManga, buildMangaFromAniList, renderManga, mangaSpec, type MangaRecord } from 'packages/obsidian/src/library/manga';
 import type { SpecDeps, LibraryNoteCtx } from 'packages/obsidian/src/library/types';
+import { TmdbRateLimitError } from 'packages/obsidian/src/watchlist/SyncEngine';
 import jikanFixture from 'tests/fixtures/jikan-manga-csm.json';
 import mangadexFixture from 'tests/fixtures/mangadex-feed.json';
+import anilistFixture from 'tests/fixtures/anilist-manga-csm.json';
 
 const JIKAN_DATA = jikanFixture.data;
+const ANILIST_MEDIA = anilistFixture.data.Media;
 
 const EMPTY_PREV: Record<string, string> = {};
 
@@ -16,6 +19,7 @@ function makeDeps(overrides: Partial<SpecDeps> = {}): SpecDeps & { notifyCalls:
 	return {
 		http: async () => ({}),
 		httpText: async () => '',
+		httpPostJson: async () => ({}),
 		getKey: () => '',
 		log: (msg: string) => {
 			logCalls.push(msg);
@@ -164,6 +168,7 @@ describe('renderManga golden', () => {
 		publishedFrom: '2018-12-03',
 		publishedTo: null,
 		malId: '116778',
+		anilistId: '105778',
 		mangadexId: 'abc-123',
 		rss: 'https://example.com/csm-feed.xml',
 		poster: 'https://cdn.myanimelist.net/images/manga/3/216464l.jpg',
@@ -684,3 +689,335 @@ describe('mangaSpec.resolve — best-effort MangaDex id resolve (I4)', () => {
 		expect(mangadexCalled).toBe(false);
 	});
 });
+
+describe('buildMangaFromAniList field mapping', () => {
+	const r = buildMangaFromAniList(ANILIST_MEDIA, EMPTY_PREV);
+
+	test('core fields', () => {
+		expect(r.title).toBe('Chainsaw Man');
+		expect(r.anilistId).toBe('105778');
+		expect(r.malId).toBe('116778'); // from idMal bridge
+		expect(r.status).toBe('Publishing'); // RELEASING -> Publishing
+		expect(r.chapters).toBeNull();
+		expect(r.volumes).toBeNull();
+		expect(r.genre).toEqual(['Action', 'Comedy', 'Horror', 'Supernatural']);
+		expect(r.poster).toBe('https://s4.anilist.co/file/anilistcdn/media/manga/cover/large/bx105778-JCftt5T5vNAY.jpg');
+		expect(r.url).toBe('https://myanimelist.net/manga/116778'); // MAL convention, mal_id present
+	});
+
+	test('authors: only staff roles containing "Story" -> excludes Letterer', () => {
+		expect(r.authors).toEqual(['Tatsuki Fujimoto']);
+	});
+
+	test('score: averageScore 85 -> 8.5', () => {
+		expect(r.score).toBe(8.5);
+	});
+	test('averageScore 73 -> 7.3', () => {
+		expect(buildMangaFromAniList({ ...ANILIST_MEDIA, averageScore: 73 }, EMPTY_PREV).score).toBe(7.3);
+	});
+	test('non-number averageScore -> null', () => {
+		expect(buildMangaFromAniList({ ...ANILIST_MEDIA, averageScore: null }, EMPTY_PREV).score).toBeNull();
+	});
+
+	test('dates: startDate full -> ISO padded', () => {
+		expect(r.publishedFrom).toBe('2018-12-03');
+	});
+	test('dates: endDate all-null parts -> null', () => {
+		expect(r.publishedTo).toBeNull();
+	});
+	test('dates: partial date (missing day) -> null, not a malformed ISO string', () => {
+		const media = { ...ANILIST_MEDIA, startDate: { year: 2018, month: 12, day: null } };
+		expect(buildMangaFromAniList(media, EMPTY_PREV).publishedFrom).toBeNull();
+	});
+
+	test('description: <br> -> newline, <i> stripped, trimmed', () => {
+		expect(r.synopsis).toBe('Denji has been robbed of a normal life ever since his Chainsaw Devil, Pochita, merged with him.\nNow he hunts devils for a living.');
+	});
+
+	test('eng_name empty when title.english === title.romaji', () => {
+		expect(r.engName).toBe('');
+	});
+	test('eng_name set when title.english differs from title.romaji', () => {
+		const media = { ...ANILIST_MEDIA, title: { romaji: 'Chainsaw Man', english: 'Chainsaw Man EN Alt' } };
+		expect(buildMangaFromAniList(media, EMPTY_PREV).engName).toBe('Chainsaw Man EN Alt');
+	});
+
+	test('status map: exhaustive', () => {
+		const map: Record<string, string> = {
+			RELEASING: 'Publishing',
+			FINISHED: 'Finished',
+			HIATUS: 'On Hiatus',
+			CANCELLED: 'Canceled',
+			NOT_YET_RELEASED: 'Not Yet Published',
+		};
+		for (const [anilist, expected] of Object.entries(map)) {
+			expect(buildMangaFromAniList({ ...ANILIST_MEDIA, status: anilist }, EMPTY_PREV).status).toBe(expected);
+		}
+	});
+
+	test('idMal null -> mal_id falls back to prev (preserves existing mal_id, does not clobber)', () => {
+		const media = { ...ANILIST_MEDIA, idMal: null };
+		const result = buildMangaFromAniList(media, { mal_id: '999' });
+		expect(result.malId).toBe('999');
+		expect(result.url).toBe('https://myanimelist.net/manga/999');
+	});
+	test('idMal null + no prev mal_id -> mal_id empty, url falls back to AniList siteUrl', () => {
+		const media = { ...ANILIST_MEDIA, idMal: null };
+		const result = buildMangaFromAniList(media, EMPTY_PREV);
+		expect(result.malId).toBe('');
+		expect(result.url).toBe('https://anilist.co/manga/105778');
+	});
+
+	test('user-field preservation: read_status/rating/last_read_chapter/rss/mangadex_id carried from prev (shared with buildManga)', () => {
+		const prev = {
+			read_status: 'Reading',
+			rating: '4',
+			rating_stars: '⭐️⭐️⭐️⭐️',
+			last_read_chapter: '150',
+			rss: 'https://x.y/feed.xml',
+			mangadex_id: 'abc-123',
+			latest_chapter: '213',
+			last_chapter_date: '2026-07-16',
+		};
+		const result = buildMangaFromAniList(ANILIST_MEDIA, prev);
+		expect(result.readStatus).toBe('Reading');
+		expect(result.rating).toBe('4');
+		expect(result.ratingStars).toBe('⭐️⭐️⭐️⭐️');
+		expect(result.lastReadChapter).toBe('150');
+		expect(result.rss).toBe('https://x.y/feed.xml');
+		expect(result.mangadexId).toBe('abc-123');
+		expect(result.latestChapter).toBe(213);
+		expect(result.lastChapterDate).toBe('2026-07-16');
+	});
+});
+
+describe('mangaSpec.hasId / isActive — anilist_id counts as an id too', () => {
+	test('hasId: anilist_id set, no mal_id -> true', () => {
+		expect(mangaSpec.hasId({ anilist_id: '105778' })).toBe(true);
+	});
+	test('isActive: never enriched (neither id) -> active', () => {
+		expect(mangaSpec.isActive({})).toBe(true);
+	});
+	test('isActive: anilist_id only, Publishing -> active', () => {
+		expect(mangaSpec.isActive({ anilist_id: '1', status: 'Publishing', read_status: 'Unread' })).toBe(true);
+	});
+	test('isActive: anilist_id only, Finished + Read -> static', () => {
+		expect(mangaSpec.isActive({ anilist_id: '1', status: 'Finished', read_status: 'Read' })).toBe(false);
+	});
+});
+
+describe('mangaSpec.resolve — AniList primary', () => {
+	function anilistPage(media: any[]) {
+		return { data: { Page: { media } } };
+	}
+
+	test('unique exact romaji match -> patches anilist_id + mal_id (idMal bridge)', async () => {
+		const deps = makeDeps({
+			http: async () => ({ data: [] }), // jikan/mangadex: no exact match -> mangadex_id left unset
+			httpPostJson: async () => anilistPage([{ id: 105778, idMal: 116778, title: { romaji: 'Chainsaw Man', english: 'Chainsaw Man' } }]),
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps);
+		expect(result).toEqual({ mal_id: '116778', anilist_id: '105778' });
+	});
+
+	test('unique exact match via english title only (case-insensitive) -> accepted', async () => {
+		const deps = makeDeps({
+			http: async () => ({ data: [] }),
+			httpPostJson: async () => anilistPage([{ id: 105778, idMal: 116778, title: { romaji: 'チェンソーマン', english: 'Chainsaw Man' } }]),
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps);
+		expect(result).toEqual({ mal_id: '116778', anilist_id: '105778' });
+	});
+
+	test('no exact match, sole AniList result -> accepted (unique-exact fallback rule)', async () => {
+		const deps = makeDeps({
+			http: async () => ({ data: [] }),
+			httpPostJson: async () => anilistPage([{ id: 999, idMal: 888, title: { romaji: 'Some Other Title', english: '' } }]),
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps);
+		expect(result).toEqual({ mal_id: '888', anilist_id: '999' });
+	});
+
+	test('AniList hit, idMal null (no MAL bridge) -> patch has anilist_id only', async () => {
+		const deps = makeDeps({
+			http: async () => ({ data: [] }),
+			httpPostJson: async () => anilistPage([{ id: 105778, idMal: null, title: { romaji: 'Chainsaw Man', english: 'Chainsaw Man' } }]),
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps);
+		expect(result).toEqual({ anilist_id: '105778' });
+	});
+
+	test('AniList ambiguous (multiple, no exact) -> falls back to Jikan search, logs anilist candidates', async () => {
+		const deps = makeDeps({
+			http: async () => ({ data: [{ mal_id: 116778, title: 'Chainsaw Man', title_english: 'Chainsaw Man' }] }),
+			httpPostJson: async () =>
+				anilistPage([
+					{ id: 1, idMal: 1, title: { romaji: 'Foo', english: '' }, startDate: { year: 2020 } },
+					{ id: 2, idMal: 2, title: { romaji: 'Bar', english: '' }, startDate: { year: 2021 } },
+				]),
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps);
+		expect(result).toEqual({ mal_id: '116778' });
+		expect(deps.logCalls.some(m => m.includes('ambiguous') && m.includes('anilist_id=1') && m.includes('Foo') && m.includes('anilist_id=2') && m.includes('Bar'))).toBe(true);
+	});
+
+	test('AniList miss (empty results) -> falls straight to Jikan, no ambiguous log from AniList side', async () => {
+		const deps = makeDeps({
+			http: async () => ({ data: [{ mal_id: 116778, title: 'Chainsaw Man', title_english: 'Chainsaw Man' }] }),
+			httpPostJson: async () => anilistPage([]),
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps);
+		expect(result).toEqual({ mal_id: '116778' });
+		expect(deps.logCalls.some(m => m.includes('anilist_id='))).toBe(false);
+	});
+
+	test('AniList search throws generic error -> log, falls back to Jikan (no overall failure)', async () => {
+		const deps = makeDeps({
+			http: async () => ({ data: [{ mal_id: 116778, title: 'Chainsaw Man', title_english: 'Chainsaw Man' }] }),
+			httpPostJson: async () => {
+				throw new Error('anilist down');
+			},
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps);
+		expect(result).toEqual({ mal_id: '116778' });
+		expect(deps.logCalls.some(m => m.toLowerCase().includes('anilist'))).toBe(true);
+	});
+
+	test('AniList search throws TmdbRateLimitError -> propagates, no Jikan fallback attempted', async () => {
+		let jikanCalled = false;
+		const deps = makeDeps({
+			http: async () => {
+				jikanCalled = true;
+				return { data: [] };
+			},
+			httpPostJson: async () => {
+				throw new TmdbRateLimitError('429');
+			},
+		});
+		await expect(mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps)).rejects.toBeInstanceOf(TmdbRateLimitError);
+		expect(jikanCalled).toBe(false);
+	});
+
+	test('AniList hit, no mangadex_id in fm -> mangadex resolve still attempted (best-effort, unchanged)', async () => {
+		const deps = makeDeps({
+			http: async (url: string) => (url.includes('mangadex.org') ? { data: [{ id: 'a1b2c3d4-uuid', attributes: { title: { en: 'Chainsaw Man' } } }] } : { data: [] }),
+			httpPostJson: async () => anilistPage([{ id: 105778, idMal: 116778, title: { romaji: 'Chainsaw Man', english: 'Chainsaw Man' } }]),
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man' }, ''), deps);
+		expect(result).toEqual({ mal_id: '116778', anilist_id: '105778', mangadex_id: 'a1b2c3d4-uuid' });
+	});
+
+	test('mangadex_id already present -> mangadex search skipped, even on an AniList hit', async () => {
+		let mangadexCalled = false;
+		const deps = makeDeps({
+			http: async (url: string) => {
+				if (url.includes('mangadex.org')) mangadexCalled = true;
+				return { data: [] };
+			},
+			httpPostJson: async () => anilistPage([{ id: 105778, idMal: 116778, title: { romaji: 'Chainsaw Man', english: 'Chainsaw Man' } }]),
+		});
+		const result = await mangaSpec.resolve(ctxFor({ title: 'Chainsaw Man', mangadex_id: 'existing-uuid' }, ''), deps);
+		expect(result).toEqual({ mal_id: '116778', anilist_id: '105778' });
+		expect(mangadexCalled).toBe(false);
+	});
+});
+
+describe('mangaSpec.sync — AniList primary enrich', () => {
+	test('anilist_id present -> fetches Media(id:...), builds AniList record', async () => {
+		let captured: any = null;
+		const deps = makeDeps({
+			httpPostJson: async (url: string, body: unknown) => {
+				captured = body;
+				return anilistFixture;
+			},
+		});
+		const fm = { anilist_id: '105778', read_status: 'Unread' };
+		const result = await mangaSpec.sync(ctxFor(fm), deps);
+		expect(result).not.toBeNull();
+		expect(result!.content).toContain('title: Chainsaw Man');
+		expect(result!.content).toContain('anilist_id: 105778');
+		expect(result!.content).toContain('mal_id: 116778');
+		expect(result!.content).toContain('status: Publishing');
+		expect(result!.content).toContain('score: 8.5');
+		expect((captured as any).query).toContain('Media');
+		expect((captured as any).query).toContain('MANGA');
+		expect((captured as any).variables).toEqual({ id: 105778 });
+	});
+
+	test('mal_id present, no anilist_id -> fetches Media(idMal:...), backfills anilist_id', async () => {
+		let captured: any = null;
+		const deps = makeDeps({
+			httpPostJson: async (url: string, body: unknown) => {
+				captured = body;
+				return anilistFixture;
+			},
+		});
+		const fm = { mal_id: '116778', read_status: 'Unread' };
+		const result = await mangaSpec.sync(ctxFor(fm), deps);
+		expect(result).not.toBeNull();
+		expect((captured as any).query).toContain('idMal');
+		expect((captured as any).variables).toEqual({ id: 116778 });
+		expect(result!.content).toContain('anilist_id: 105778');
+	});
+
+	test('AniList throw (generic error), mal_id present -> Jikan fallback, prior anilist_id preserved verbatim', async () => {
+		const deps = makeDeps({
+			httpPostJson: async () => {
+				throw new Error('anilist down');
+			},
+			http: async () => jikanFixture,
+		});
+		const fm = { anilist_id: '999999', mal_id: '116778', read_status: 'Read', latest_chapter: '213', last_chapter_date: '2026-07-16' };
+		const result = await mangaSpec.sync(ctxFor(fm), deps);
+		expect(result).not.toBeNull();
+		expect(result!.content).toContain('anilist_id: 999999');
+		expect(result!.content).toContain('mal_id: 116778');
+		expect(result!.content).toContain('latest_chapter: 213');
+		expect(deps.logCalls.some(m => m.toLowerCase().includes('anilist'))).toBe(true);
+	});
+
+	test('AniList throw, no mal_id available -> no Jikan fallback possible, returns null', async () => {
+		let jikanCalled = false;
+		const deps = makeDeps({
+			httpPostJson: async () => {
+				throw new Error('anilist deleted entry');
+			},
+			http: async () => {
+				jikanCalled = true;
+				return jikanFixture;
+			},
+		});
+		const result = await mangaSpec.sync(ctxFor({ anilist_id: '105778' }), deps);
+		expect(result).toBeNull();
+		expect(jikanCalled).toBe(false);
+		expect(deps.logCalls.some(m => m.toLowerCase().includes('anilist'))).toBe(true);
+	});
+
+	test('AniList throws TmdbRateLimitError -> propagates uncaught, no Jikan fallback attempted', async () => {
+		let jikanCalled = false;
+		const deps = makeDeps({
+			httpPostJson: async () => {
+				throw new TmdbRateLimitError('429');
+			},
+			http: async () => {
+				jikanCalled = true;
+				return jikanFixture;
+			},
+		});
+		await expect(mangaSpec.sync(ctxFor({ mal_id: '116778' }), deps)).rejects.toBeInstanceOf(TmdbRateLimitError);
+		expect(jikanCalled).toBe(false);
+	});
+
+	test('chapter cascade (rss) still works on top of an AniList-built record', async () => {
+		const deps = makeDeps({
+			httpPostJson: async () => anilistFixture,
+			httpText: async () => RSS_214,
+		});
+		const fm = { anilist_id: '105778', rss: 'https://example.com/csm-feed.xml', read_status: 'Read', latest_chapter: '213', last_chapter_date: '2026-07-16' };
+		const result = await mangaSpec.sync(ctxFor(fm), deps);
+		expect(result!.flipped).toBe(true);
+		expect(result!.content).toContain('latest_chapter: 214');
+		expect(result!.content).toContain('read_status: Unread');
+		expect(deps.notifyCalls).toEqual(['«Chainsaw Man» ch. 214 out']);
+	});
+});