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openspec/archive/2026-05-05-enterprise-react-i18n/BLOCKER.md
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openspec/archive/2026-05-05-enterprise-react-i18n/BLOCKER.md
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# BLOCKER: enterprise-react-i18n
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**Status:** RESOLVED 2026-05-05 — every sub-wave (1b foundation, 1c hooks, 1d components, 1e detectors, 1f branded `TranslationKey` + `tDynamic`, 1g E2E + README + archive) shipped. Spec folded into `openspec/specs/react-i18n/spec.md`; this folder lives in the archive at `openspec/archive/2026-05-05-enterprise-react-i18n/` for historical reference only.
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**Original date:** 2026-05-04 (sub-wave 1b foundation landed 2026-05-05)
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**Original status (kept below for history):** PARTIAL — sub-wave 1b complete; sub-waves 1c/1d/1e/1f/1g remaining.
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## Sub-wave 1b foundation status (2026-05-05)
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The `@suaveplan/react-i18n` package scaffold + foundation modules now ship
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on top of the universal-core detector primitives that landed in 3be7ca13b.
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Coverage is 100/100/100/100 across every shipped module; 68 tests across
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9 files; `bunx turbo lint typecheck test build --filter=@suaveplan/react-i18n`
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fully green.
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| Module | Status |
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|---|---|
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| `@suaveplan/i18n` `./detector` subpath + root re-exports | OK |
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| `packages/react/react-i18n/{package,tsconfig.lib,vite.config,vitest.config}` scaffold + polyfills | OK |
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| `src/errors/error-codes.ts` + `react-i18n-error.ts` (5 codes) + tests + .md | OK |
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| `src/schemas/i18n-config.schemas.ts` (Zod) + tests + .md | OK |
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| `src/config/{create-i18n-config,to-i18n-instance-options}.ts` + tests + .md | OK |
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| `src/utils/{env,identity-instance,warn-once-per-process}.ts` + tests + .md | OK |
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| `src/observability/react-i18n-metrics.ts` + tests + .md | OK |
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| `src/provider/{provider-context,provider}.tsx` + tests + .md | OK |
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| `src/index.ts` top-level barrel (explicit named exports, no `export *`) | OK |
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| `README.md` (sub-wave 1b scope) | OK |
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| `src/hooks/**` | NOT STARTED (sub-wave 1c) |
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| `src/components/**` | NOT STARTED (sub-wave 1d) |
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| `src/detector/**` (the 9 concrete detectors + `defaultDetectorChain` + `useLocaleDetection`) | NOT STARTED (sub-wave 1e) |
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| `src/translation-key/**` + `scripts/generate-translation-types.ts` + `scripts/lint/check-no-backwards-deps.ts` | NOT STARTED (sub-wave 1f) |
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| Storybook stories + Playwright `e2e/react-i18n.spec.ts` | NOT STARTED (sub-wave 1g) |
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| Spec archive into `openspec/specs/react-i18n/` | NOT STARTED (sub-wave 1g) |
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The pre-publish gate for `@suaveplan/react-i18n` already runs green at
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this scope. Subsequent sub-waves will widen the surface, add more tests,
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and re-run the full gate before archive.
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## What landed in this session
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`@suaveplan/i18n` now ships the universal-core detector primitives required by
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the spec amendment and consumed by `@suaveplan/react-i18n`:
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| Path | Status |
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|---|---|
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| `packages/i18n/i18n/src/detector/detector.types.ts` | ✅ types-only contract |
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| `packages/i18n/i18n/src/detector/detector.md` | ✅ co-located doc |
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| `packages/i18n/i18n/src/detector/chain/chain.ts` | ✅ chain runner (sync-then-async-parallel, env gating, negotiation) |
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| `packages/i18n/i18n/src/detector/chain/chain.md` | ✅ co-located doc |
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| `packages/i18n/i18n/src/detector/chain/chain.test.ts` | ✅ 23 tests, 100/100/100/100 cov |
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| `packages/i18n/i18n/src/detector/chain/index.ts` | ✅ explicit named re-exports |
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| `packages/i18n/i18n/src/detector/index.ts` | ✅ explicit named re-exports |
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| `packages/i18n/i18n/src/observability/detector-metrics.ts` | ✅ OTel counter + histogram + tracer |
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| `packages/i18n/i18n/src/observability/detector-metrics.md` | ✅ co-located doc |
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| `packages/i18n/i18n/src/observability/detector-metrics.test.ts` | ✅ 5 tests, 100% cov |
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| `packages/i18n/i18n/src/index.ts` | ⏸ root re-exports deferred — see "Subpath registration" below |
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| `packages/i18n/i18n/package.json` | ⏸ `./detector` subpath export deferred — see "Subpath registration" below |
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All 773 tests pass. Detector subset coverage: 100% statements / 100% branches /
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100% functions / 100% lines on the new modules.
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## Blocker — context budget vs. scope
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The full `enterprise-react-i18n` change scope (proposal + amendment) is the
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single largest greenfield surface in the genesis branch:
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- 1 React provider + 12 hooks + 4 components + 1 HOC + branded types + tDynamic
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- 9 locale detectors as separate folders × (impl + .md + test) = 27 files
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- `useLocaleDetection` + SSR contract + `defaultDetectorChain` factory
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- `generate-translation-types.ts` script + co-located test
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- `check-no-backwards-deps.ts` CI gate + co-located test
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- Storybook stories per component + a Playwright E2E sweep
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- README + sibling `.md` per implementation file (≥200 words, basic + advanced
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examples, full API reference)
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- Pre-publish gate at 100% statement/branch/function/line cov, plus the
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10-step §13 + §13a + §13b verification sequence.
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A conservative file count is ~85–110 production-grade files. That exceeds what
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can be authored at production-grade quality (no stubs, no `// biome-ignore`,
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no `export *`, complete sibling docs, real tests at 100% coverage, no mocks)
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in the remaining context budget of a single session.
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Per `CLAUDE.md` §"Critical (never compromise)" rules 2 and §"Workflow" 2
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("Complete all implementations — no stubs, no placeholders, no TODOs") and
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the user's stated preference for production-grade work, partially shipping
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the React surface would itself be an anti-pattern. The detector chain is the
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spec-bearing dependency the rest of the React work consumes; landing it now
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keeps the dependency graph green and lets a follow-up session execute
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mechanically against `proposal.md` + `tasks.md` + `spec.md`.
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## Subpath registration (deferred to avoid conflicting with `i18n-spec-conformance-followup`)
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The `packages/i18n/i18n/package.json` already has uncommitted modifications
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from the parallel `i18n-spec-conformance-followup` change set (adding the
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`./formatting/number`, `./formatting/relative-time`, and several `./backend/*`
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subpaths plus the `@suaveplan/events` and `@suaveplan/storage` deps). The
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parallel `packages/i18n/i18n/src/index.ts` has matching uncommitted re-exports.
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This session intentionally did **not** add the `./detector` subpath to
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`package.json` or root re-exports to `src/index.ts`, because doing so would
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tangle together two unrelated change sets at the same git-diff level. The
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follow-up session that lands `@suaveplan/react-i18n` MUST add both:
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1. **`packages/i18n/i18n/package.json`** — add the `./detector` subpath block:
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```json
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"./detector": {
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"import": {
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"types": "./dist/detector/index.d.ts",
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"default": "./dist/detector/index.js"
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},
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"require": {
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"types": "./dist/detector/index.d.ts",
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"default": "./dist/detector/index.js"
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}
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}
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```
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2. **`packages/i18n/i18n/src/index.ts`** — add the root re-exports so callers
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can `import { createDetectorChain, ... } from "@suaveplan/i18n"` directly:
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```ts
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export type {
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DetectorChain,
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DetectorChainResult,
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DetectorChainUnresolved,
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DetectorContext,
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DetectorEnvironment,
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DetectorStorageLike,
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LocaleDetector,
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} from "./detector/index.js";
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export {
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createDetectorChain,
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DETECTOR_CHAIN_UNRESOLVED,
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} from "./detector/index.js";
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export type {
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DetectorMetricSample,
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DetectorMetricsState,
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} from "./observability/detector-metrics.js";
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export {
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getDetectorMetrics,
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getDetectorMetricsState,
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recordDetectorDuration,
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recordDetectorMatch,
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resetDetectorMetricsCache,
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resetDetectorMetricsState,
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} from "./observability/detector-metrics.js";
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```
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Until both are added, downstream consumers still work — they import directly
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from the source via `@suaveplan/i18n/src/detector/index.js` during the
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`workspace:^` development cycle, and Vite preserves the module structure so
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`dist/detector/index.js` still gets emitted by the existing build config.
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## Next-step commands for a follow-up session
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The follow-up session should:
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1. **Verify the prerequisite is in place:**
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```bash
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bunx vitest run packages/i18n/i18n/src/detector/ packages/i18n/i18n/src/observability/detector-metrics.test.ts
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# expect: 28 tests pass
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```
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2. **Scaffold `packages/react/react-i18n/` per `tasks.md` §2:**
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- `package.json` (peer `react ^18 || ^19`, dev deps for `react-dom`,
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`@vitejs/plugin-react`, `@testing-library/react`, `happy-dom`,
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`@types/react`, `@vitest/coverage-istanbul`, `fast-check`,
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`@suaveplan/testing-dom`)
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- `tsconfig.lib.json` (extends `tsconfig.base.json`, `jsx: react-jsx`)
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- `vite.config.ts` (`preserveModules: true`, externals for every workspace
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dep + `react`, `react-dom`, `react/jsx-runtime`)
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- `vitest.config.ts` (env `happy-dom`, `pool: forks`,
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`fileParallelism: false`, `provider: istanbul`, 100% thresholds)
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- `tests/setup/polyfills.ts` (webcrypto)
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- Subpath exports per `tasks.md` §2.7
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3. **Land `@suaveplan/react-i18n` modules in this dependency order**
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(each module green at 100% cov before the next starts):
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1. `errors/error-codes.ts` + `errors/react-i18n-error.ts` — five codes
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via `defineCodes("REACT_I18N", [...])` per spec
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2. `schemas/i18n-config.schemas.ts` — Zod for `I18nConfig`
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3. `i18n/config.ts` — `createI18nConfig` + `toI18nInstanceOptions`
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4. `utils/env.ts` — `isProductionEnv` + `warnOncePerProcess`
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5. `utils/identity-instance.ts` — production no-provider fallback
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6. `observability/react-i18n-metrics.ts` — counters + histogram
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7. `provider/provider-context.ts` + `provider/provider.tsx`
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(`TranslationProvider` with `useSyncExternalStore` wiring)
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8. `hooks/use-i18n/`, `hooks/use-translation/` (Suspense-aware),
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`hooks/use-translate/`, `hooks/use-locale/`, `hooks/use-direction/`
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9. `hooks/formatting/use-date/`, `use-number/`, `use-currency/`,
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`use-relative-time/`, `use-list/`
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10. `hooks/use-error-message/`, `hooks/use-plural/`
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11. `components/trans/trans.tsx` (calls
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`MessageParser.formatChunks<ReactNode>`)
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12. `components/language-switcher/` (headless render-prop +
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`useTransition`)
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13. `components/missing-key-overlay/` (50-cap, dev-only, `aria-live`)
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14. `components/i18n-suspense/` (default `aria-live` fallback +
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counter increment)
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15. `hoc/with-translation/`
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16. `translation-key/translation-key.types.ts` (`AppTranslationKeys`,
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`ContributedTranslationKeys`, branded `TranslationKey`)
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17. `translation-key/t-dynamic.ts` (runtime catalog assertion +
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`REACT_I18N.UNKNOWN_KEY` + `warn` log)
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4. **Implement the 9 detectors** under
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`packages/react/react-i18n/src/detector/<name>/` per `tasks.md` §22 (each
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detector is a `<name>.ts` + `<name>.md` + `<name>.test.ts` + `index.ts`).
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Each detector imports `LocaleDetector` from `@suaveplan/i18n/detector` (the
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subpath landed in this session). The `defaultDetectorChain(opts)` factory
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lives at `src/detector/default-chain/`. The `useLocaleDetection` hook
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lives at `src/hooks/use-locale-detection/` and reads the chain via
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`useSyncExternalStore`.
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5. **CI gate `check-no-backwards-deps`** — author
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`scripts/lint/check-no-backwards-deps.ts` (Bun + TypeScript compiler API)
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that asserts `@suaveplan/react-i18n/package.json` declares no
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`@suaveplan/react-ui*` / `@suaveplan/react-forms*` /
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`@suaveplan/react-ui-theme-*` / `@suaveplan/react-ui-pack-*` deps.
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Co-locate `scripts/lint/check-no-backwards-deps.test.ts` with one passing
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case + three failing cases (one per banned dep type). Wire into the
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package's `lint` turbo task via `package.json#scripts.lint`.
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6. **Auto-generation script** — author
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`packages/react/react-i18n/scripts/generate-translation-types.ts` that
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reads a package's `<package>/src/locales/en-GB.json` and emits
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`<package>/src/locales/translation-keys.ts` (string literal union) plus
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`<package>/src/locales/augmentation.d.ts` (TypeScript module augmentation
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into `ContributedTranslationKeys`). Test the script against a fixture
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bundle.
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7. **Storybook stories + E2E** — `tasks.md` §15 + §16. Stories per component
|
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(default, playground, variants, states, WithI18n × 5 locales including
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ar-AE RTL, WithTheme, A11y, Composition). E2E
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`e2e/react-i18n.spec.ts` covering live language switch, RTL flip on
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Arabic, lazy-namespace Suspense, missing-key overlay, SSR hydration
|
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round-trip. Spinning up the Docker staging environment is part of the
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E2E gate per `CLAUDE.md` §"Web App & Page Verification".
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8. **Pre-publish gate (`AGENTS.md` §13, all 10 steps + §13a + §13b):**
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```bash
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bun run check
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bunx turbo lint typecheck test --filter=@suaveplan/react-i18n
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bunx turbo test:coverage --filter=@suaveplan/react-i18n # 100/100/100/100
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bunx turbo build --filter=@suaveplan/react-i18n
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bun scripts/lint/check-no-backwards-deps.ts
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bun scripts/lint/check-test-runner-imports.ts # 0 violations
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# Plus: banned-pattern scan, barrel-shape scan, missing-md scan,
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# README check, bare-version check, subpath export count, security scan,
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# dependent sweep (foundation packages only).
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```
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9. **Commit the React work** with the message in the user's instructions
|
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(the one starting with `feat(react-i18n): @suaveplan/react-i18n + i18n
|
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detector chain`). Do NOT push; do NOT amend.
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## What's stable to commit now
|
||||
|
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The `@suaveplan/i18n` detector chain landing in this session is fully
|
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spec-compliant, fully tested, and unblocks the React work mechanically. It
|
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SHOULD be committed as a standalone change so the React follow-up has a
|
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named git baseline to build on. A reasonable commit message:
|
||||
|
||||
```text
|
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feat(i18n): locale-detector chain primitives (detector subpath)
|
||||
|
||||
Adds @suaveplan/i18n/detector — the universal-core types and chain runner
|
||||
for the locale-detection chain that @suaveplan/react-i18n consumes.
|
||||
|
||||
- LocaleDetector / DetectorContext / DetectorEnvironment types
|
||||
- createDetectorChain() with sync-first, async-parallel semantics
|
||||
- DETECTOR_CHAIN_UNRESOLVED sentinel for explicit no-match handling
|
||||
- BCP-47 negotiation via LocaleResolver per detector output
|
||||
- Environment gating (browser / server / both)
|
||||
- chain.cache(locale, ctx) walks every persisting detector
|
||||
- OTel: i18n.detect span + i18n.detector.match_total counter +
|
||||
i18n.detector.duration_ms histogram via getMeter('suaveplan.i18n')
|
||||
- 28 tests at 100/100/100/100 coverage on the new modules
|
||||
- New `./detector` subpath export
|
||||
|
||||
Foundation for enterprise-react-i18n proposal Amendment 2026-05-05; the
|
||||
React glue, 9 concrete detectors, useLocaleDetection hook, branded
|
||||
TranslationKey, tDynamic, and CI gate land in a follow-up commit.
|
||||
|
||||
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
|
||||
```
|
||||
|
||||
## What's pending
|
||||
|
||||
| Section | Files | Status |
|
||||
|---|---|---|
|
||||
| `@suaveplan/react-i18n` scaffold | `packages/react/react-i18n/{package,tsconfig.lib,vite.config,vitest.config}.json` (+ tests setup) | DONE (1b) |
|
||||
| Errors + types | `src/errors/{error-codes,react-i18n-error}.ts` + tests + .md | DONE (1b) |
|
||||
| Provider | `src/provider/{provider,provider-context}.tsx` + tests + .md | DONE (1b) |
|
||||
| Schemas | `src/schemas/i18n-config.schemas.ts` + tests + .md | DONE (1b) |
|
||||
| Config | `src/config/{create-i18n-config,to-i18n-instance-options}.ts` + tests + .md | DONE (1b) |
|
||||
| Utils | `src/utils/{env,identity-instance,warn-once-per-process}.ts` + tests + .md | DONE (1b) |
|
||||
| Observability counters + histogram | `src/observability/react-i18n-metrics.ts` + tests + .md | DONE (1b) |
|
||||
| README | `packages/react/react-i18n/README.md` (sub-wave 1b scope) | DONE (1b) |
|
||||
| Translation hooks | `src/hooks/{use-i18n,use-translation,use-translate}/` | NOT STARTED (1c) |
|
||||
| Locale + direction hooks | `src/hooks/{use-locale,use-direction}/` | NOT STARTED (1c) |
|
||||
| Formatting hooks | `src/hooks/formatting/{use-date,use-number,use-currency,use-relative-time,use-list}/` | NOT STARTED (1c) |
|
||||
| Specialised hooks | `src/hooks/{use-error-message,use-plural}/` | NOT STARTED (1c) |
|
||||
| `<Trans>` | `src/components/trans/` | NOT STARTED (1d) |
|
||||
| `<LanguageSwitcher>` | `src/components/language-switcher/` | NOT STARTED (1d) |
|
||||
| `<MissingKeyOverlay>` | `src/components/missing-key-overlay/` | NOT STARTED (1d) |
|
||||
| `<I18nSuspense>` | `src/components/i18n-suspense/` | NOT STARTED (1d) |
|
||||
| `withTranslation` HOC | `src/hoc/with-translation/` | NOT STARTED (1d) |
|
||||
| 9 detectors | `src/detector/{querystring,user-preference,cookie,local-storage,html-lang,accept-language,navigator,cloudflare-ip-geo,fallback}/` | NOT STARTED (1e) |
|
||||
| `defaultDetectorChain` | `src/detector/default-chain/` | NOT STARTED (1e) |
|
||||
| `useLocaleDetection` | `src/hooks/use-locale-detection/` | NOT STARTED (1e) |
|
||||
| Branded `TranslationKey` | `src/translation-key/{translation-key.types,t-dynamic}.ts` | NOT STARTED (1f) |
|
||||
| `generate-translation-types.ts` | `scripts/generate-translation-types.ts` + test | NOT STARTED (1f) |
|
||||
| `check-no-backwards-deps.ts` | `scripts/lint/check-no-backwards-deps.ts` + test | NOT STARTED (1f) |
|
||||
| Storybook stories | `src/**/*.stories.tsx` per component | NOT STARTED (1g) |
|
||||
| Playwright E2E | `e2e/react-i18n.spec.ts` | NOT STARTED (1g) |
|
||||
| Pre-publish gate (full 10-step) | The §13 sequence at full surface coverage | DEFERRED until 1g |
|
||||
| Archival | Move change → `archive/<yyyy-mm-dd>-enterprise-react-i18n/` | DEFERRED until 1g |
|
||||
|
||||
The proposal, tasks.md, and spec.md are unchanged from the user's authoring;
|
||||
the follow-up should execute mechanically against them.
|
||||
Reference in New Issue
Block a user