diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index be77ac8..3b9b017 120000
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -1 +1,115 @@
-../AGENTS.md
\ No newline at end of file
+# GitHub Copilot Instructions for g0v0-server
+
+This is an osu! API simulation server built with FastAPI, supporting osu! API v1/v2 and osu!lazer client functionality.
+
+## Architecture Overview
+
+**Entry Point:** `main.py` orchestrates startup/shutdown with complex lifespan management including fetchers, GeoIP, schedulers, cache systems, Redis messaging, and achievement loading.
+
+**Router Organization:**
+- `app/router/v1/` - osu! API v1 endpoints (must match [official v1 spec](https://github.com/ppy/osu-api/wiki))
+- `app/router/v2/` - osu! API v2 endpoints (must match [official v2 OpenAPI spec](https://osu.ppy.sh/docs/openapi.yaml))
+- `app/router/private/` - Custom/internal endpoints not in official APIs
+- `app/router/auth.py` - OAuth 2.0 authentication flows
+- `app/router/notification/` - Chat and notification systems
+
+**Data Layer:**
+- SQLModel ORM with async MySQL (`app/models/`, `app/database/`)
+- Redis for caching, sessions, and messaging (`app/service/*_cache_service.py`)
+- Alembic migrations in `migrations/`
+
+**Background Systems:**
+- `app/scheduler/` - Background job schedulers (cache refresh, cleanup, rankings)
+- `app/service/` - Business logic services (user ranking, email queue, asset proxy)
+- Native Rust module `packages/msgpack_lazer_api/` for fast MessagePack serialization
+
+## Development Workflows
+
+**Environment Setup:**
+```bash
+uv sync                           # Install dependencies
+pre-commit install               # Setup git hooks
+maturin develop -R               # Build native Rust module (when changed)
+```
+
+**Database Operations:**
+```bash
+alembic revision --autogenerate -m "feat(db): description"  # Create migration
+alembic upgrade head                                        # Apply migrations
+```
+
+**Development Server:**
+```bash
+uvicorn main:app --reload --host 0.0.0.0 --port 8000
+```
+
+**Code Quality:**
+```bash
+pre-commit run --all-files       # Run all checks
+pyright                         # Type checking
+ruff .                          # Linting and formatting
+```
+
+## Key Patterns & Conventions
+
+**Route Handlers:**
+- Always async with dependency injection for DB/Redis
+- Keep handlers thin - business logic goes in `app/service/`
+- Use `UserCacheService` for user data caching patterns
+- Background tasks for async cache updates: `bg_tasks.add_task()`
+
+**Database Access:**
+```python
+# Inject database session
+async def endpoint(session: AsyncSession = Depends(get_session)):
+    # Use select() with specific columns for performance
+    stmt = select(User.id, User.username).where(User.active == True)
+    # Use exists() for existence checks
+    exists_stmt = select(exists().where(User.id == user_id))
+```
+
+**Caching Patterns:**
+```python
+# Redis key naming: "user:{id}:profile", "beatmap:{id}:data"
+# Use UserCacheService.get_user_resp() for cached user responses
+# MessagePack serialization via native module for compact storage
+```
+
+**Error Handling:**
+- `HTTPException` for client errors with proper status codes
+- Structured logging with loguru for server-side issues
+- Sentry integration for production error tracking
+
+**Authentication:**
+- OAuth 2.0 with multiple flows (password, authorization_code, client_credentials)
+- v1 API uses API key in query parameter `k`
+- JWT tokens with configurable expiration
+
+## Critical Integration Points
+
+**Asset Proxy System:** Routes osu! asset URLs (avatars, beatmap covers) through custom domain - see `app/service/asset_proxy_*.py`
+
+**Game Mode Support:** Multi-mode with RX/AP variants - mode handling in `app/models/score.py`
+
+**Rate Limiting:** FastAPI-limiter with Redis backend - different limits for download vs general APIs
+
+**Native Module:** Rust MessagePack encoder/decoder in `packages/msgpack_lazer_api/` - rebuild with `maturin develop -R` after changes
+
+**Background Schedulers:** Multiple concurrent schedulers for rankings, cache warming, database cleanup - managed in lifespan handlers
+
+## API Compliance Rules
+
+- **v1/v2 endpoints MUST match official osu! API specifications exactly**
+- Custom endpoints go in `app/router/private/` only
+- Maintain response schema compatibility - breaking changes require migration plan
+- Use existing `*Resp` models for consistent response formats
+
+## Configuration
+
+Environment-driven via Pydantic Settings in `app/config.py`:
+- Database: MySQL with async aiomysql driver
+- Cache: Redis for sessions, rate limiting, messaging
+- Storage: Local, S3, or Cloudflare R2 backends
+- Optional: Sentry, New Relic, email SMTP
+
+See project wiki for complete `.env` configuration guide.
\ No newline at end of file
diff --git a/app/router/v2/user.py b/app/router/v2/user.py
index 463a8be..0388719 100644
--- a/app/router/v2/user.py
+++ b/app/router/v2/user.py
@@ -404,3 +404,25 @@ async def get_user_scores(
     )
 
     return score_responses
+
+
+@router.get(
+    "/users/{user_id}/kudosu",
+    response_model=list,
+    name="获取用户 kudosu 记录",
+    description="获取指定用户的 kudosu 记录。TODO: 可能会实现",
+    tags=["用户"],
+)
+async def get_user_kudosu(
+    user_id: int = Path(description="用户 ID"),
+    offset: int = Query(default=0, description="偏移量"),
+    limit: int = Query(default=6, description="返回记录数量限制"),
+):
+    """
+    获取用户的 kudosu 记录
+
+    TODO: 可能会实现
+    目前返回空数组作为占位符
+    """
+    # TODO: 实现 kudosu 记录获取逻辑
+    return []