nities = leiden_partition(ast_nodes, resolution=1.0) edges = extract_dependency_edges(ast_nodes) graph_db.upsert_nodes(communities) graph_db.upsert_edges(edges) return graph_db.serialize_for_llm()

### 2. Cost-Optimized Multi-Agent Routing
A lightweight classifier routes incoming queries based on complexity, determinism, and token budget. Simple tasks (boilerplate, data lookup, regex generation) are offloaded to a $0.02/call model, while complex reasoning, architecture decisions, and creative problem-solving are reserved for Claude Pro. This prevents rate-limit exhaustion and optimizes token economics.

**Architecture Decision**: Implement a token bucket rate limiter with exponential backoff. Use a lightweight embedding classifier (e.g., `text-embedding-3-small`) to score query complexity before routing.

```yaml
# routing_config.yaml
models:
  coworker:
    endpoint: "https://api.coworker.ai/v1/chat"
    cost_per_call: 0.02
    max_tokens: 4096
    use_cases: ["boilerplate", "data_lookup", "regex", "formatting"]
  claude_pro:
    endpoint: "https://api.anthropic.com/v1/messages"
    cost_per_call: 15.00
    max_tokens: 100000
    use_cases: ["architecture", "debugging", "creative_reasoning", "refactoring"]
router:
  complexity_threshold: 0.75
  fallback: "claude_pro"
  rate_limit: "token_bucket"

3. Real-Time Generative Gaming (Gemini 3 + ThreeJS/Colyseus)

The Spellwright demo demonstrates a prompt-to-physics pipeline where Gemini 3 interprets natural language spell descriptions, generates corresponding ThreeJS geometry/physics parameters, and synchronizes state via Colyseus. The system uses async streaming to prevent game loop blocking, with a deterministic physics engine validating AI-generated parameters before client-side rendering.

Architecture Decision: Decouple AI inference from the render loop. Use a state reconciliation layer to validate Gemini 3 outputs against physics constraints, preventing exploit vectors. VoIP is handled via WebRTC data channels alongside Colyseus state sync.

// Core generative spell pipeline
async function generateSpell(prompt: string, sessionId: string) {
  const response = await gemini3.stream({
    model: "gemini-3-multimodal",
    prompt: `Generate ThreeJS physics parameters for: ${prompt}`,
    temperature: 0.7,
    max_tokens: 512
  });

  const params = await response.json();
  const validated = physicsEngine.validate(params); // Sandbox validation
  
  colyseusRoom.broadcast("spell_cast", {
    sessionId,
    params: validated,
    timestamp: performance.now()
  });
  
  return validated;
}

Pitfall Guide

1. Stale Knowledge Graphs: Failing to implement incremental diffing causes context drift as codebases evolve. Always version-control graph snapshots and trigger updates on commit hooks or IDE save events.
2. Blind Task Routing: Poor classification logic routes complex architectural queries to cheap models, causing hallucinations. Implement embedding-based complexity scoring with explicit fallback to high-tier models when confidence drops below threshold.
3. Context Window Fragmentation: Injecting raw graph data without chunking or summarization exceeds token limits. Apply hierarchical summarization and prioritize high-centrality nodes during prompt construction.
4. Latency in Generative Pipelines: Synchronous API calls block the main render thread, causing frame drops. Use async streaming, predictive caching, and client-side interpolation to mask inference latency.
5. Security & Prompt Injection: Open generative interfaces allow malicious inputs to manipulate physics or network state. Enforce strict schema validation, sandbox AI outputs, and implement server-side authority for critical game logic.
6. Rate Limiting Mismanagement: Not implementing token bucket algorithms or exponential backoff leads to workflow interruptions during peak usage. Configure adaptive throttling and queue management to maintain throughput stability.

Deliverables

• Blueprint: Complete architecture diagrams for /graphify integration, multi-agent routing topology, and Gemini 3 generative gaming pipeline. Includes database schemas for knowledge graph storage, Colyseus state synchronization contracts, and WebRTC VoIP configuration templates.
• Checklist: Step-by-step deployment guide covering AST parser setup, Leiden community detection tuning, routing classifier training, API key rotation, rate limiter configuration, physics validation sandboxing, and production monitoring metrics (latency p95, token cost per session, graph update frequency).