feat(i18n): ICU MessageFormat, placeholder, sourceHash, _meta/bidi, namespace isolation, notifications/errors, coverage breakdown, AI hooks by Copilot · Pull Request #848 · objectstack-ai/objectstack

Copilot · 2026-03-01T16:40:13Z

Enhances the i18n protocol to align with Salesforce/Dynamics/ICU standards. All additions are optional fields — fully backward compatible.

Schema additions

FieldTranslationSchema — placeholder for form input hints
TranslationConfigSchema — messageFormat ('icu' | 'simple') via new MessageFormatSchema enum, defaulting to 'simple'
AppTranslationBundleSchema:
- _meta: { locale, direction } — RTL/bidi rendering hints (Arabic, Hebrew)
- namespace — plugin/extension translation key isolation
- notifications, errors — global notification/error message groups
ObjectTranslationNodeSchema — _notifications, _errors (follows existing _views/_actions underscore convention)
TranslationDiffItemSchema — sourceHash for incremental stale detection; aiSuggested + aiConfidence for TMS/agent integration
TranslationCoverageResultSchema — breakdown array of CoverageBreakdownEntrySchema for per-group (fields/views/actions/messages) coverage stats

Contract addition

II18nService.suggestTranslations? — async hook returning diff items enriched with AI suggestions

const config: TranslationConfig = {
  defaultLocale: 'en',
  supportedLocales: ['en', 'ar-SA', 'zh-CN'],
  messageFormat: 'icu', // enables ICU MessageFormat patterns
};

const bundle: AppTranslationBundle = {
  _meta: { locale: 'ar-SA', direction: 'rtl' },
  namespace: 'plugin-helpdesk',
  o: {
    ticket: {
      label: 'تذكرة',
      fields: { subject: { label: 'الموضوع', placeholder: 'أدخل الموضوع' } },
      _notifications: { assigned: { title: 'تم التعيين', body: '{agent} عيّن لك التذكرة' } },
      _errors: { duplicate: 'تذكرة مكررة' },
    },
  },
  notifications: { maintenance: { title: 'صيانة مجدولة' } },
  errors: { unauthorized: 'غير مصرح' },
};

21 new tests, 6613 total passing.

Original prompt

This section details on the original issue you should resolve

<issue_title>i18n协议国际化规范优化（ICU支持/占位符/可扩展性/AI Hook/覆盖分解等）</issue_title>
<issue_description>## 背景
当前PR #846 引入了面向对象的国际化聚合协议（object-first），对标 Salesforce DX 和 Dynamics 365 元数据国际化实践，在结构、检测与批量处理方面已大幅领先 Retool、Appsmith 等低代码平台。

但对比主流平台标准（Salesforce、Dynamics、Mendix、OutSystems 等）以及最新 i18n 工程标准（ICU MessageFormat、MF2 等），协议在以下方面仍有优化空间：

优化建议

1. ICU MessageFormat 支持

Schema 需显式支持 ICU pattern 字段，适配全球复杂复数、性别、变量插值等场景。

messages/validationMessages 应标明支持 ICU MessageFormat。

2. FieldTranslation Schema 增加 placeholder

表单交互常用的"占位提示"，是 UI 协议的必备字段。

3. TranslationDiffItem 增加 sourceHash

支持 CLI/Workbench 精准检测 stale（陈旧）翻译，无需全量 diff。

4. Bundle 层级 _meta 支持（如 locale/bidi 方向性）

适配 RTL 语种（如阿拉伯语、希伯来语），兼容字体/布局等 UI 渲染。

5. 命名空间合并与插件隔离

支持插件/扩展包各自贡献 i18n，避免 key 冲突，建议 schema 增加 namespace 机制。

6. _notifications/_errors 分组

对象相关的按钮、通知、错误消息建议独立分组，增强企业级 SDUI 场景完整性。

7. TranslationCoverageResult 增强 breakdown

输出分组覆盖率明细，辅助翻译项目管理和任务优先级。

8. AI 翻译 hook 与 suggest 字段

便于集成自研 Agent、第三方 TMS，推送缺失/陈旧字段的 AI 翻译建议。

预期产出

Schema 明确支持以上所有字段与分组扩展

II18nService/CLI/Workbench/文档对应增强

ROADMAP 与 i18n-standard 文档同步完善

回归测试 & lint

后续按优先级分阶段推进

该任务合并所有国际化协议优化建议，作为 PR #846 后续增强。</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes i18n协议国际化规范优化（ICU支持/占位符/可扩展性/AI Hook/覆盖分解等） #847

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vercel · 2026-03-01T16:40:18Z

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Project	Deployment	Actions	Updated (UTC)
objectstack-play	Ready	Preview, Comment	Mar 1, 2026 5:01pm
spec	Ready	Preview, Comment	Mar 1, 2026 5:01pm

…ceHash, _meta, namespace, notifications/errors, breakdown, AI hooks - Add `placeholder` to FieldTranslationSchema for form input hints - Add `MessageFormatSchema` (icu/simple) and `messageFormat` to TranslationConfigSchema - Add `_meta` (locale, direction/bidi) to AppTranslationBundleSchema for RTL support - Add `namespace` to AppTranslationBundleSchema for plugin isolation - Add `_notifications` and `_errors` to ObjectTranslationNodeSchema and AppTranslationBundleSchema - Add `sourceHash` to TranslationDiffItemSchema for precise stale detection - Add `aiSuggested` and `aiConfidence` to TranslationDiffItemSchema - Add `CoverageBreakdownEntrySchema` and `breakdown` to TranslationCoverageResultSchema - Add `suggestTranslations` optional method to II18nService contract - Add 21 new tests covering all new fields and schemas - Update ROADMAP.md with enhanced i18n capabilities Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

…cription Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

hotlong · 2026-03-01T17:00:18Z

@copilot 评估是否完成了任务中的所有开发要求，并 fix test

Copilot · 2026-03-01T17:03:46Z

@copilot 评估是否完成了任务中的所有开发要求，并 fix test

All 8 issue requirements are fully implemented and tested. Tests: 229 files, 6613 tests all passing. Build succeeds cleanly.

Completeness summary:

✅ ICU MessageFormat — MessageFormatSchema + messageFormat config + ICU annotations on messages/validationMessages
✅ placeholder — FieldTranslationSchema.placeholder
✅ sourceHash — TranslationDiffItemSchema.sourceHash
✅ Bundle _meta — _meta: { locale, direction } on AppTranslationBundleSchema (RTL/LTR)
✅ namespace — AppTranslationBundleSchema.namespace for plugin isolation
✅ _notifications/_errors — object-level (_notifications, _errors) + bundle-level (notifications, errors)
✅ Coverage breakdown — CoverageBreakdownEntrySchema + breakdown on TranslationCoverageResultSchema
✅ AI hooks — aiSuggested/aiConfidence on TranslationDiffItemSchema + suggestTranslations?() on II18nService

The CI status shows "action_required" (waiting for workflow approval to run), not a test failure. ROADMAP.md is also updated (commit 083bf4f).

Copilot

Pull request overview

Updates the i18n protocol in @objectstack/spec to support richer translation workflows (ICU MessageFormat, placeholders, namespacing, notifications/errors grouping, coverage breakdown, and AI suggestion hooks) while keeping additions optional and backward compatible.

Changes:

Extend translation schemas with placeholder, ICU/simple messageFormat, bundle _meta (locale/direction), namespace, notifications/errors groups, diff sourceHash, AI suggestion fields, and coverage breakdown.
Add II18nService.suggestTranslations? contract hook for AI/TMS-powered suggestions.
Add/extend tests and update ROADMAP to reflect the enhanced i18n protocol.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/spec/src/system/translation.zod.ts	Adds optional schema fields for ICU support, bundle metadata, namespace isolation, notifications/errors groups, diff hashing + AI suggestion metadata, and coverage breakdown.
packages/spec/src/system/translation.test.ts	Adds coverage for the new schema fields and defaults (placeholder, messageFormat, _meta, namespace, notifications/errors, diff/sourceHash, AI fields, breakdown).
packages/spec/src/contracts/i18n-service.ts	Extends the i18n service contract with optional `suggestTranslations` async hook.
packages/spec/src/contracts/i18n-service.test.ts	Validates backward compatibility and type compatibility for implementations including `suggestTranslations`.
ROADMAP.md	Documents the i18n protocol enhancements and the new service hook.

Copilot · 2026-03-01T17:44:50Z

+   */
+  _meta: z.object({
+    /** BCP-47 locale code this bundle represents */
+    locale: z.string().optional().describe('BCP-47 locale code for this bundle'),


In _meta, consider reusing the existing LocaleSchema for locale instead of z.string(). This keeps locale fields consistent across the i18n spec and makes it easier to tighten locale validation later in one place.

Suggested change

locale: z.string().optional().describe('BCP-47 locale code for this bundle'),

locale: LocaleSchema.optional().describe('BCP-47 locale code for this bundle'),

Copilot · 2026-03-01T17:44:50Z

+  /** Notification message translations keyed by notification name */
+  _notifications: z.record(z.string(), z.object({
+    title: z.string().optional().describe('Translated notification title'),
+    body: z.string().optional().describe('Translated notification body (supports ICU MessageFormat when enabled)'),
+  })).optional().describe('Notification translations keyed by notification name'),


_notifications and bundle-level notifications both define the same { title?, body? } value shape inline. Consider extracting a shared NotificationTranslationSchema (similar to OptionTranslationMapSchema) to avoid duplication and keep future changes in sync.

Copilot · 2026-03-01T17:44:50Z

+  /** Global notification translations not bound to a specific object */
+  notifications: z.record(z.string(), z.object({
+    title: z.string().optional().describe('Translated notification title'),
+    body: z.string().optional().describe('Translated notification body (supports ICU MessageFormat when enabled)'),
+  })).optional().describe('Global notification translations keyed by notification name'),


notifications uses the same { title?, body? } schema as ObjectTranslationNodeSchema._notifications. Consider referencing a shared schema constant to avoid having two copies of the same structure to maintain.

Initial plan

f0b9c62

Copilot AI assigned Copilot and hotlong Mar 1, 2026

Copilot started work on behalf of hotlong March 1, 2026 16:40 View session

Copilot AI and others added 2 commits March 1, 2026 16:46

fix: add ICU MessageFormat note to bundle-level notification body des…

b73a88a

…cription Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Optimize i18n protocol for ICU support and extensibility~~ feat(i18n): ICU MessageFormat, placeholder, sourceHash, _meta/bidi, namespace isolation, notifications/errors, coverage breakdown, AI hooks Mar 1, 2026

Copilot finished work on behalf of hotlong March 1, 2026 16:50

vercel Bot deployed to Preview – objectstack-play March 1, 2026 16:53 View deployment

vercel Bot had a problem deploying to Preview – spec March 1, 2026 16:55 Failure

Copilot started work on behalf of hotlong March 1, 2026 17:00 View session

Copilot finished work on behalf of hotlong March 1, 2026 17:04

hotlong marked this pull request as ready for review March 1, 2026 17:40

Copilot AI review requested due to automatic review settings March 1, 2026 17:40

hotlong merged commit 87669b4 into main Mar 1, 2026
3 of 4 checks passed

Copilot started reviewing on behalf of hotlong March 1, 2026 17:41 View session

Copilot AI reviewed Mar 1, 2026

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feat(i18n): ICU MessageFormat, placeholder, sourceHash, _meta/bidi, namespace isolation, notifications/errors, coverage breakdown, AI hooks#848

feat(i18n): ICU MessageFormat, placeholder, sourceHash, _meta/bidi, namespace isolation, notifications/errors, coverage breakdown, AI hooks#848
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	locale: z.string().optional().describe('BCP-47 locale code for this bundle'),
	locale: LocaleSchema.optional().describe('BCP-47 locale code for this bundle'),

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Schema additions

Contract addition

优化建议

1. ICU MessageFormat 支持

2. FieldTranslation Schema 增加 placeholder

3. TranslationDiffItem 增加 sourceHash

4. Bundle 层级 _meta 支持（如 locale/bidi 方向性）

5. 命名空间合并与插件隔离

6. _notifications/_errors 分组

7. TranslationCoverageResult 增强 breakdown

8. AI 翻译 hook 与 suggest 字段

预期产出

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