Rust Migration Structure

Rust Migration Structure#

Directory Layout#

mcp-agent/
├── src/                    # Existing Python source (to be deprecated)
├── rust/                   # Pure Rust implementation
│   ├── Cargo.toml         # Rust project configuration
│   ├── Cargo.lock         # Locked dependencies
│   ├── README.md          # Rust-specific documentation
│   ├── benches/           # Performance benchmarks
│   │   └── mcp_benchmarks.rs
│   ├── examples/          # Example implementations
│   │   ├── basic_agent.rs
│   │   └── multi_agent.rs
│   ├── src/
│   │   ├── lib.rs         # Library entry point
│   │   ├── main.rs        # Binary entry point
│   │   ├── mcp/           # MCP protocol implementation
│   │   │   ├── mod.rs
│   │   │   ├── protocol.rs
│   │   │   └── types.rs
│   │   ├── agent/         # Agent implementations
│   │   │   ├── mod.rs
│   │   │   ├── base.rs
│   │   │   └── patterns/
│   │   ├── executor/      # Task execution
│   │   │   ├── mod.rs
│   │   │   └── runtime.rs
│   │   ├── api/          # API endpoints
│   │   │   ├── mod.rs
│   │   │   └── routes/
│   │   ├── models/       # Data models
│   │   │   ├── mod.rs
│   │   │   └── schemas/
│   │   ├── telemetry/    # Monitoring
│   │   │   ├── mod.rs
│   │   │   └── metrics.rs
│   │   └── utils/        # Shared utilities
│   │       ├── mod.rs
│   │       └── error.rs
│   └── tests/            # Integration tests
│       ├── common/
│       └── integration/
└── scripts/              # Shared scripts
    └── build-rust.sh     # Rust build script

Key Components#

1. Core Protocol (mcp/)#

  • Pure Rust MCP protocol implementation

  • Type definitions with compile-time validation

  • Protocol validation using Rust’s type system

  • Zero-copy serialization/deserialization

2. Agent System (agent/)#

  • Base agent traits with async support

  • Pattern implementations using Rust’s type system

  • Agent lifecycle management with RAII

  • State management using Rust’s ownership model

3. Execution Engine (executor/)#

  • Native async runtime using Tokio

  • Task scheduling with work-stealing

  • Resource management with RAII

  • Error handling using Result and custom error types

4. API Layer (api/)#

  • HTTP endpoints using Axum

  • WebSocket support with tokio-tungstenite

  • Authentication using pure Rust JWT implementation

  • Rate limiting with in-memory state

5. Data Models (models/)#

  • Serde implementations for serialization

  • Schema validation using Rust’s type system

  • Zero-copy deserialization where possible

  • Custom derive macros for type safety

6. Monitoring (telemetry/)#

  • OpenTelemetry integration

  • Metrics collection with custom Rust implementation

  • Structured logging with tracing

  • Performance tracking with custom instrumentation

Dependencies#

[dependencies]
# Async Runtime
tokio = { version = "1.0", features = ["full"] }
futures = "0.3"

# Web Framework
axum = "0.7"
tower = "0.4"
tower-http = { version = "0.5", features = ["trace"] }

# Serialization
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"

# Cryptography (Pure Rust)
getrandom = "0.2"
rand = "0.8"
sha2 = "0.10"
hmac = "0.12"
pbkdf2 = "0.12"
aes-gcm = "0.10"
chacha20poly1305 = "0.10"

# Logging and Tracing
tracing = "0.1"
tracing-subscriber = "0.3"
opentelemetry = "0.21"
opentelemetry-otlp = "0.14"

# Error Handling
thiserror = "1.0"
anyhow = "1.0"
async-trait = "0.1"

# Testing
proptest = "1.3"
tokio-test = "0.4"

Migration Strategy#

  1. Phase 1: Core Protocol

    • Implement MCP protocol in pure Rust

    • Focus on zero-copy operations

    • Implement comprehensive testing

    • Validate against protocol spec

  2. Phase 2: Agent System

    • Port agent patterns to Rust idioms

    • Implement state management using Rust types

    • Add async support throughout

    • Implement comprehensive error handling

  3. Phase 3: Execution Engine

    • Build async runtime with Tokio

    • Implement work-stealing scheduler

    • Add resource management

    • Implement monitoring

  4. Phase 4: API Layer

    • Port HTTP endpoints to Axum

    • Add WebSocket support

    • Implement pure Rust authentication

    • Add rate limiting

  5. Phase 5: Integration

    • Full system testing

    • Performance benchmarking

    • Documentation

    • Deployment preparation

Build Integration#

The build-rust.sh script will:

  1. Build Rust components with optimizations

  2. Run all tests including benchmarks

  3. Generate documentation

  4. Create release artifacts

Testing Strategy#

  1. Unit Tests

    • Rust-native tests with async support

    • Property-based tests with proptest

    • Zero-copy validation tests

    • Memory safety tests

  2. Integration Tests

    • End-to-end workflows

    • Performance benchmarks

    • Memory usage tests

    • Concurrency tests

  3. Compatibility Tests

    • Protocol compliance

    • API compatibility

    • State management

    • Error handling

Documentation#

  1. Rust Documentation

    • API reference

    • Architecture overview

    • Performance characteristics

    • Memory safety guarantees

  2. Implementation Details

    • Zero-copy operations

    • Async patterns

    • Error handling

    • Resource management

Performance Considerations#

  1. Optimization Targets

    • Zero-copy protocol operations

    • Efficient state management

    • Minimal memory allocations

    • Low latency response times

  2. Benchmarking

    • Protocol operations

    • Memory usage

    • Concurrency patterns

    • API response times

Security#

  1. API Security

    • Pure Rust JWT implementation

    • Rate limiting with in-memory state

    • Input validation using Rust types

    • Secure headers

  2. Data Safety

    • Memory safety through ownership

    • Thread safety through types

    • Resource cleanup through RAII

    • Error handling through Result

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