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openspec/archive/2026-04-19-enterprise-sitemap/tasks.md

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+# Tasks: enterprise-sitemap
+
+## 1. Scaffold
+
+- [x] 1.1 `universal/platform/sitemap/`; 100/100/100/100; guard tests; CLAUDE/README/FOLDERS.
+
+## 2. Errors + schemas
+
+- [x] 2.1 `src/error-codes.ts`, `src/errors/sitemap-errors.ts` + helper factories.
+- [x] 2.2 Zod schemas for `SitemapUrl`, `SitemapImage`, `SitemapVideo`, `SitemapNews`, `SitemapOptions`, `SitemapIndex`.
+
+## 3. Generator
+
+- [x] 3.1 `src/generator/sitemap-generator.ts` — `SitemapGenerator`.
+- [x] 3.2 50 k-URL size limit enforcement.
+
+## 4. Index generator
+
+- [x] 4.1 `src/index-generator/sitemap-index.ts`.
+
+## 5. Extensions
+
+- [x] 5.1 `src/extensions/image-sitemap.ts`.
+- [x] 5.2 `src/extensions/video-sitemap.ts`.
+- [x] 5.3 News extension.
+
+## 6. Incremental builder
+
+- [x] 6.1 `src/incremental/incremental-builder.ts` — `computeUrlHash`, `IncrementalBuilder`.
+
+## 7. Compression
+
+- [x] 7.1 `src/compression/sitemap-compressor.ts` — gzip via `fflate`.
+
+## 8. Docs / barrel / subpath exports / README
+
+## 9. Benchmarks
+
+- [x] 9.1 Generate 50 k URLs + gzip round-trip.
+
+## 10. Ship gate
+
+- [x] 10.1 Verification sequence; fold + archive.