Migrate project to Claude Code as primary AI coding assistant

Agent-Logs-Url: https://github.com/objectstack-ai/framework/sessions/5c860d51-bea2-48cb-918a-9129f37adb46

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

Author: Claude

.github/copilot-instructions.md

@@ -90,7 +90,7 @@ objectstack-ai/spec/
 │   ├── app-crm/           # Advanced: full CRM with relations
 │   └── plugin-bi/         # Plugin example: BI dashboard
 │
-├── skills/                # 🤖 AI skill definitions (for Copilot/Cursor)
+├── skills/                # 🤖 AI skill definitions (for Claude Code, Copilot, Cursor)
 │   ├── objectstack-schema/
 │   ├── objectstack-query/
 │   ├── objectstack-api/

.github/prompts/OVERVIEW.md

@@ -114,16 +114,22 @@ ObjectStack AI Prompts
 
 ## 🚀 使用方式 (Usage)
 
-### GitHub Copilot 集成
+### AI 编码助手集成
 
-这些提示词会被 GitHub Copilot 自动加载：
+这些提示词兼容多个 AI 编码助手：
+
+- **Claude Code**（推荐）：从代码库上下文自动加载
+- **GitHub Copilot**：在代码库中工作时自动加载
+- **Cursor**：可引用这些提示词获取上下文感知帮助
+
+提示词会根据以下内容自动加载：
 
 ```
 .github/
 └── prompts/
-    ├── data-protocol.prompt.md      ← 编辑数据协议时自动加载
-    ├── ui-protocol.prompt.md        ← 编辑UI协议时自动加载
-    ├── system-protocol.prompt.md    ← 编辑系统协议时自动加载
+    ├── data-protocol.prompt.md      ← 编辑数据协议时加载
+    ├── ui-protocol.prompt.md        ← 编辑UI协议时加载
+    ├── system-protocol.prompt.md    ← 编辑系统协议时加载
     └── ...
 ```
 

.github/prompts/README.md

@@ -142,9 +142,15 @@ These prompts help with specific development tasks:
 
 ## 🎯 How to Use These Prompts
 
-### For GitHub Copilot
+### For AI Coding Assistants
 
-These prompts are automatically loaded by GitHub Copilot when working in the repository. They provide context-aware assistance based on:
+These prompts are compatible with multiple AI coding assistants:
+
+- **Claude Code** (Recommended): Automatically loaded from the repository context
+- **GitHub Copilot**: Automatically loaded when working in the repository
+- **Cursor**: Can reference these prompts for context-aware assistance
+
+They provide context-aware assistance based on:
 - The file you're editing
 - The protocol layer you're working on
 - The task you're performing

CLAUDE.md

@@ -2,7 +2,8 @@
 
 > **Last synced with `.github/copilot-instructions.md`:** 2026-04-16
 >
-> This file is the **Claude Code** equivalent of `.github/copilot-instructions.md` (GitHub Copilot).
+> This file is the **Claude Code** primary instruction file for ObjectStack development.
+> A parallel `.github/copilot-instructions.md` exists for GitHub Copilot compatibility.
 > Keep both files in sync when updating project-wide AI instructions.
 
 ---
@@ -88,7 +89,7 @@ objectstack-ai/framework/
 │   └── server/            # 🚀 Production server (multi-app orchestration)
 │
 ├── examples/              # 📚 Reference implementations
-├── skills/                # 🤖 AI skill definitions (for Copilot/Cursor/Claude)
+├── skills/                # 🤖 AI skill definitions (for Claude Code, Copilot, Cursor)
 └── content/docs/          # 📝 Documentation content
 ```
 
@@ -264,6 +265,54 @@ When editing files matching these patterns, apply the corresponding architectura
 
 ---
 
+## Claude Code Best Practices
+
+This project is optimized for development with **Claude Code** (Anthropic's official AI coding assistant). Follow these practices for the best experience:
+
+### Effective Prompting
+
+1. **Be Specific**: Reference exact file paths and line numbers when discussing code
+2. **Provide Context**: Mention the protocol domain you're working in (Data, UI, System, AI, API)
+3. **Use Domain Skills**: Reference the appropriate skill file when working on specialized tasks
+4. **Sequential Tasks**: Break complex tasks into smaller, testable increments
+
+### Leveraging Claude Code Features
+
+1. **Multi-File Awareness**: Claude Code can read and edit multiple files simultaneously
+2. **Deep Analysis**: Request architectural analysis before making significant changes
+3. **Code Review**: Ask for code review suggestions before committing
+4. **Test-Driven**: Request test generation alongside implementation
+
+### Working with This Repository
+
+1. **Start with Skills**: Consult `skills/objectstack-{domain}/SKILL.md` for domain-specific guidance
+2. **Check Prompts**: Review `.github/prompts/{domain}-protocol.prompt.md` for detailed context
+3. **Follow Conventions**: Always adhere to Prime Directives (Zod-first, naming conventions, etc.)
+4. **Incremental Changes**: Make small, focused changes and test frequently
+
+### Example Prompts
+
+**Data Protocol Work:**
+```
+"I need to add a new field type 'geolocation' to packages/spec/src/data/field-type.zod.ts.
+First, read the existing field types to understand the pattern, then implement following
+the Zod-first approach with proper TSDoc comments."
+```
+
+**Testing:**
+```
+"Review the test coverage for packages/spec/src/ui/view.zod.ts and suggest additional
+edge cases we should test, particularly around view type validation."
+```
+
+**Architecture:**
+```
+"I want to add a new service for caching. Review packages/services/service-cache/ if it exists,
+or suggest the architecture following the kernel-managed service pattern used in other services."
+```
+
+---
+
 ## Post-Task Checklist
 
 After completing any task: