Inside the Eval Gate: Real-Time AI Action Verification
The Eval Gate: Your AI's Checkpoint
Every action an AI attempts passes through the Eval Gate. This isn't a bottleneck—it's a guarantee. In milliseconds, we determine whether an action should proceed, require approval, or be blocked.
Performance Requirements
Architecture Overview
┌─────────────┐ ┌─────────────┐ ┌─────────────┐
│ AI Agent │────▶│ Eval Gate │────▶│ Execution │
└─────────────┘ └─────────────┘ └─────────────┘
│
┌──────┴──────┐
▼ ▼
┌─────────┐ ┌─────────┐
│ Policy │ │ Audit │
│ Store │ │ Log │
└─────────┘ └─────────┘
Evaluation Pipeline
Stage 1: Request Parsing
Stage 2: Policy Resolution
Stage 3: Rule Evaluation
Stage 4: Decision
Stage 5: Audit
Optimization Techniques
Policy Caching
Hot policies cached in memory with sub-millisecond access.
Rule Indexing
Actions mapped to relevant rules via inverted index.
Parallel Evaluation
Independent rules evaluated concurrently.
Early Exit
DENY rules short-circuit remaining evaluation.
Failure Modes
Monitoring
Key metrics we track: