Checkpoint: File edits

Automatic checkpoint created by Claude Code
- Branch: v3
- Timestamp: 2026-01-14T20:27:38Z
- Changes: 1 file(s)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

v3/@claude-flow/cli/src/ruvector/enhanced-model-router.ts

@@ -167,6 +167,38 @@ const FILE_PATH_PATTERNS: RegExp[] = [
 /**
  * Language detection by extension
  */
+/**
+ * High-complexity keywords that indicate Tier 3 (Opus) routing
+ * These tasks require deep reasoning and architectural understanding
+ */
+const TIER3_KEYWORDS: RegExp[] = [
+  // Architecture & Design
+  /\b(microservices?|architecture|system\s+design|distributed)\b/i,
+  /\b(design|architect|plan)\s+(a|an|the|complex)\b/i,
+
+  // Security
+  /\b(oauth2?|pkce|jwt|rbac|authentication\s+system|security\s+audit)\b/i,
+  /\b(refresh\s+token|token\s+rotation|role-based|permission)\b/i,
+  /\b(encryption|cryptograph|certificate|ssl|tls)\b/i,
+
+  // Distributed Systems
+  /\b(consensus|distributed|byzantine|raft|paxos)\b/i,
+  /\b(replication|sharding|partitioning|eventual\s+consistency)\b/i,
+  /\b(load\s+balanc|fault\s+toleran|high\s+availability)\b/i,
+
+  // Complex Algorithms
+  /\b(algorithm|machine\s+learning|neural|optimization)\b/i,
+  /\b(graph\s+algorithm|tree\s+traversal|dynamic\s+programming)\b/i,
+
+  // Database Design
+  /\b(schema\s+design|database\s+architect|data\s+model)\b/i,
+  /\b(normalization|denormalization|index\s+strateg)\b/i,
+
+  // Performance Critical
+  /\b(performance\s+critical|low\s+latency|high\s+throughput)\b/i,
+  /\b(memory\s+optimi|cache\s+strateg|concurrent)\b/i,
+];
+
 const LANGUAGE_MAP: Record<string, string> = {
   '.js': 'javascript',
   '.jsx': 'javascript',