| Architecture Pattern | Error Fallback Route | Max Retry Limit | Token Explosion Risk | Production Resilience |
|---|---|---|---|---|
| Unbounded Loop (Implicit State) | ❌ Missing (Loops to self) | Infinite (Unbounded) | HIGH (Token Exhaustion) | Fragile (0%) |
| Directed Graph (Explicit Map) | ✅ Explicit Branch Edge | Static Conditional | MEDIUM (Bounded Loop) | Resilient (65%) |
| Guarded Harness (Policy Rails) | ✅ Guarded Fallback Node | Dynamic Guard Constraint | LOW (Capped Budget) | Guarded (100%) |
When a tool call or evaluation fails, direct the execution token to a safe recovery path instead of re-entering the naive planning loop.