review-architecture

Architecture Review

Reviews ccswarm's architecture pattern compliance in detail.

Execution Content

Based on CLAUDE.md and docs/ARCHITECTURE.md, verify compliance with the following patterns:

1. Type-State Pattern - Compile-time state verification
2. Channel-Based Orchestration - Message passing
3. Iterator Pipelines - Zero-cost abstractions
4. Actor Model - Lock-free design
5. Minimal Testing - Minimum necessary tests

Check Items

1. Type-State Pattern

// Expected: Verify state transitions at compile time
struct Agent<S: State> {
    state: PhantomData<S>,
    // ...
}

impl Agent<Uninitialized> {
    fn initialize(self) -> Agent<Ready> { ... }
}

impl Agent<Ready> {
    fn execute(self, task: Task) -> Agent<Running> { ... }
}

Search patterns:

grep -r "PhantomData" crates/
grep -r "impl.*<.*State>" crates/

2. Channel-Based Orchestration

// Expected: Prefer Channel over Arc<Mutex>
let (tx, rx) = tokio::sync::mpsc::channel(100);

// Avoid:
// let shared = Arc::new(Mutex::new(state));

Search patterns:

grep -r "Arc<Mutex" crates/ | wc -l  # Lower is better
grep -r "mpsc::channel\|broadcast::channel" crates/

3. Iterator Pipelines

// Expected: Zero-cost abstractions with iterator chains
let results: Vec<_> = items
    .iter()
    .filter(|x| x.active)
    .map(|x| process(x))
    .collect();

// Avoid:
// for item in items { if item.active { ... } }

4. Actor Model

// Expected: Each agent as an independent actor
struct AgentActor {
    receiver: mpsc::Receiver<Message>,
}

impl AgentActor {
    async fn run(mut self) {
        while let Some(msg) = self.receiver.recv().await {
            self.handle(msg).await;
        }
    }
}

5. Minimal Testing

Criteria	Expected Value
Total tests	Around 8-10
Integration tests	Core functionality only
Unit tests	Complex logic only

Output Format

{
  "patterns": {
    "type_state": {
      "status": "OK|PARTIAL|NG",
      "usage_count": N,
      "examples": ["Agent<Ready>", "Session<Connected>"],
      "missing": ["recommended application areas"]
    },
    "channel_based": {
      "status": "OK|PARTIAL|NG",
      "channel_count": N,
      "arc_mutex_count": N,
      "refactor_candidates": ["candidates for channel conversion"]
    },
    "iterator_pipelines": {
      "status": "OK|PARTIAL|NG",
      "iterator_usage": N,
      "loop_usage": N,
      "refactor_candidates": ["candidates for iterator conversion"]
    },
    "actor_model": {
      "status": "OK|PARTIAL|NG",
      "actor_count": N,
      "message_types": ["TaskMessage", "StatusMessage"]
    },
    "minimal_testing": {
      "status": "OK|PARTIAL|NG",
      "test_count": N,
      "integration_tests": N,
      "unit_tests": N,
      "recommendation": "test addition/removal recommendation"
    }
  },
  "score": "N/5",
  "recommendations": ["priority action items"]
}