diff --git a/spec/llm_radar_trust_tiers_v1.yaml b/spec/llm_radar_trust_tiers_v1.yaml
new file mode 100644
index 0000000..dd01a96
--- /dev/null
+++ b/spec/llm_radar_trust_tiers_v1.yaml
@@ -0,0 +1,159 @@
+meta:
+  title: LLM Radar Trust Tier System
+  version: 2026-06-23
+  role: canonical
+  has_code_implementation: true
+  code_path: tools/build_final_context_for_llm_v5.py
+  purpose: "LLM의 개념 혼동 감소를 위한 신뢰도 기반 문서 로딩 시스템"
+
+trust_tier_system:
+  canonical:
+    name: "Canonical Reference"
+    trust_level: 100
+    usage: "LLM의 단일 source of truth"
+    examples:
+      - spec/12_field_dictionary.yaml
+      - spec/14_raw_workbook_mapping.yaml
+      - spec/11_market_regime.yaml
+    characteristics:
+      - "정의가 명확하고 변경 불가"
+      - "다른 모든 문서가 참조"
+      - "테스트로 검증됨"
+    loading_priority: 1
+
+  adapter:
+    name: "Adapter (Bridging)"
+    trust_level: 80
+    usage: "Canonical과 Reference 간 변환/매핑"
+    examples:
+      - spec/09_decision_flow.yaml
+      - spec/14_raw_workbook_mapping.yaml
+      - tools/build_formula_registry_sync_v1.py
+    characteristics:
+      - "1:1 매핑 관계 명확"
+      - "변환 규칙 문서화됨"
+      - "양쪽 참조 검증됨"
+    loading_priority: 2
+
+  reference:
+    name: "Reference (Context)"
+    trust_level: 60
+    usage: "배경 지식 및 해석 가이드"
+    examples:
+      - docs/WBS_9_1_F14_MIGRATION_COMPLETE_2026_06_22.md
+      - docs/WBS_9_4_INCIDENT_RESPONSE_PLAYBOOK_2026_06_22.md
+      - docs/ROADMAP_WBS.md
+    characteristics:
+      - "해석의 여지가 있을 수 있음"
+      - "최신 상태를 반영할 수 있음"
+      - "보조 정보 역할"
+    loading_priority: 3
+
+  deprecated:
+    name: "Deprecated (Legacy)"
+    trust_level: 0
+    usage: "사용 금지"
+    examples:
+      - "old_formula_v1.yaml"
+      - "retired_decision_tree_v2.yaml"
+    characteristics:
+      - "더 이상 유효하지 않음"
+      - "참조 시 경고 발생"
+      - "문서에는 보존하되 로딩 제외"
+    loading_priority: 0
+
+document_classification:
+  core_logic:
+    tier: canonical
+    documents:
+      - spec/12_field_dictionary.yaml
+      - spec/14_raw_workbook_mapping.yaml
+      - spec/11_market_regime.yaml
+      - spec/09_decision_flow.yaml
+
+  formula_mapping:
+    tier: adapter
+    documents:
+      - spec/13_formula_registry.yaml
+      - tools/build_formula_registry_sync_v1.py
+
+  implementation_guide:
+    tier: reference
+    documents:
+      - docs/WBS_9_1_F14_MIGRATION_COMPLETE_2026_06_22.md
+      - docs/WBS_9_4_INCIDENT_RESPONSE_PLAYBOOK_2026_06_22.md
+      - prompts/engine_audit_master_prompt_v3.md
+
+loading_strategy:
+  phase_1_canonical:
+    name: "Phase 1: Load Canonical References"
+    trust_threshold: 100
+    action: "Always load"
+    conflict_resolution: "Canonical wins"
+    example_documents: ["field_dictionary.yaml", "market_regime.yaml"]
+
+  phase_2_adapter:
+    name: "Phase 2: Load Adapter Bridges"
+    trust_threshold: 80
+    action: "Load if not contradicting canonical"
+    conflict_resolution: "Check 1:1 mapping validity"
+    example_documents: ["decision_flow.yaml", "formula_registry_sync"]
+
+  phase_3_reference:
+    name: "Phase 3: Load Reference Context"
+    trust_threshold: 60
+    action: "Load as secondary context"
+    conflict_resolution: "Reference yields to canonical/adapter"
+    example_documents: ["migration_reports", "playbooks"]
+
+  phase_4_search:
+    name: "Phase 4: Search-Based Context"
+    trust_threshold: 50
+    action: "Retrieve relevant docs by keyword"
+    conflict_resolution: "Higher tier overrides lower"
+    example_documents: ["any matching documents"]
+
+  phase_5_fallback:
+    name: "Phase 5: LLM Knowledge Fallback"
+    trust_threshold: 0
+    action: "Use LLM's training data only"
+    conflict_resolution: "Only if no explicit docs found"
+    example_documents: ["none - LLM internal only"]
+
+conflict_resolution_hierarchy:
+  1: "Canonical (100) - always wins"
+  2: "Adapter (80) - if not contradicted by canonical"
+  3: "Reference (60) - if consistent with canonical + adapter"
+  4: "Search results (50) - ranked by relevance + trust tier"
+  5: "LLM knowledge (0) - fallback only"
+
+probability_weighting:
+  canonical_selection: 0.95
+  adapter_selection: 0.80
+  reference_selection: 0.60
+  search_selection: 0.50
+  fallback_selection: 0.05
+  note: "선택 확률은 LLM confidence 보정에 사용"
+
+error_detection:
+  tier_mismatch:
+    description: "Canonical과 Reference가 모순될 때"
+    action: "Canonical 선택, Reference 무시, 경고 로그"
+
+  missing_tier:
+    description: "Adapter tier 문서 부재"
+    action: "Canonical 직접 사용, 변환 생략"
+
+  deprecated_reference:
+    description: "Deprecated 문서가 로드되려 할 때"
+    action: "로드 거부, canonical 대체 제시"
+
+success_metrics:
+  baseline_error_rate: "100%"
+  target_error_rate: "50%"
+  target_date: "2026-08-15"
+  measurement_method: "LLM 출력 검증 (개념 혼동 횟수)"
+
+  phase_1_target: "20% 감소 (Phase 1 trust tier 적용)"
+  phase_2_target: "35% 감소 (Phase 2 load order 적용)"
+  phase_3_target: "50% 감소 (Phase 3-5 통합)"
diff --git a/tools/llm_radar_phase1_phase2_v1.py b/tools/llm_radar_phase1_phase2_v1.py
new file mode 100644
index 0000000..22356fc
--- /dev/null
+++ b/tools/llm_radar_phase1_phase2_v1.py
@@ -0,0 +1,326 @@
+#!/usr/bin/env python3
+"""
+WBS-9.6 Phase 1 & 2: LLM Radar Trust Tier + Loading Order
+
+Phase 1: Trust 라벨 시스템 정의
+Phase 2: 5-tier 로딩 순서 구현
+"""
+
+import yaml
+import json
+from pathlib import Path
+from typing import Dict, List, Tuple
+from datetime import datetime
+import sys
+
+class LLMRadarPhase12:
+    """LLM Radar Trust Tier System (Phase 1 & 2)"""
+
+    def __init__(self):
+        self.trust_tier_spec = Path("spec/llm_radar_trust_tiers_v1.yaml")
+        self.context_cache = {}
+        self.load_order_sequence = []
+        self.results = {
+            "timestamp": datetime.now().isoformat(),
+            "phase_1": {},
+            "phase_2": {},
+            "summary": {}
+        }
+
+    def load_trust_tier_spec(self) -> Dict:
+        """Trust tier 스펙 로드"""
+        if not self.trust_tier_spec.exists():
+            print(f"[ERROR] Trust tier spec not found: {self.trust_tier_spec}")
+            return {}
+
+        with open(self.trust_tier_spec, encoding='utf-8') as f:
+            spec = yaml.safe_load(f)
+
+        return spec
+
+    def phase_1_build_trust_labels(self) -> Dict:
+        """Phase 1: 모든 문서에 trust 라벨 지정"""
+        spec = self.load_trust_tier_spec()
+
+        if not spec:
+            return {"status": "FAILED", "error": "Spec not loaded"}
+
+        # Trust tier 정보 추출
+        trust_tiers = spec.get("trust_tier_system", {})
+        doc_classification = spec.get("document_classification", {})
+
+        trust_labels = {}
+
+        # 각 분류에서 문서 추출
+        for category, config in doc_classification.items():
+            tier = config.get("tier")
+            documents = config.get("documents", [])
+
+            if tier not in trust_tiers:
+                print(f"[WARNING] Unknown tier: {tier} for category {category}")
+                continue
+
+            tier_info = trust_tiers[tier]
+            trust_level = tier_info.get("trust_level", 0)
+
+            for doc in documents:
+                trust_labels[doc] = {
+                    "tier": tier,
+                    "trust_level": trust_level,
+                    "category": category,
+                    "priority": tier_info.get("loading_priority", 0)
+                }
+
+        self.results["phase_1"]["total_documents"] = len(trust_labels)
+        self.results["phase_1"]["tier_distribution"] = self._count_by_tier(trust_labels)
+        self.results["phase_1"]["trust_labels"] = trust_labels
+
+        print(f"[Phase 1] Trust labels created for {len(trust_labels)} documents")
+        return {
+            "status": "SUCCESS",
+            "documents_labeled": len(trust_labels),
+            "tiers": list(set(label["tier"] for label in trust_labels.values()))
+        }
+
+    def _count_by_tier(self, labels: Dict) -> Dict:
+        """Tier별 문서 개수 계산"""
+        counts = {}
+        for label in labels.values():
+            tier = label["tier"]
+            counts[tier] = counts.get(tier, 0) + 1
+        return counts
+
+    def phase_2_build_loading_order(self) -> Dict:
+        """Phase 2: 5-tier 로딩 순서 정의"""
+        spec = self.load_trust_tier_spec()
+
+        if not spec:
+            return {"status": "FAILED", "error": "Spec not loaded"}
+
+        loading_strategy = spec.get("loading_strategy", {})
+        trust_tiers = spec.get("trust_tier_system", {})
+
+        # 로딩 순서 정의
+        load_sequence = []
+
+        # Phase 1: Canonical (trust_level=100)
+        canonical_docs = [
+            "spec/12_field_dictionary.yaml",
+            "spec/14_raw_workbook_mapping.yaml",
+            "spec/11_market_regime.yaml"
+        ]
+        load_sequence.append({
+            "phase": 1,
+            "name": "Canonical References",
+            "tier": "canonical",
+            "trust_threshold": 100,
+            "documents": canonical_docs,
+            "action": "Always load"
+        })
+
+        # Phase 2: Adapter (trust_level=80)
+        adapter_docs = [
+            "spec/09_decision_flow.yaml",
+            "spec/13_formula_registry.yaml"
+        ]
+        load_sequence.append({
+            "phase": 2,
+            "name": "Adapter Bridges",
+            "tier": "adapter",
+            "trust_threshold": 80,
+            "documents": adapter_docs,
+            "action": "Load if no conflict with canonical"
+        })
+
+        # Phase 3: Reference (trust_level=60)
+        reference_docs = [
+            "docs/WBS_9_1_F14_MIGRATION_COMPLETE_2026_06_22.md",
+            "docs/WBS_9_4_INCIDENT_RESPONSE_PLAYBOOK_2026_06_22.md"
+        ]
+        load_sequence.append({
+            "phase": 3,
+            "name": "Reference Context",
+            "tier": "reference",
+            "trust_threshold": 60,
+            "documents": reference_docs,
+            "action": "Load as secondary context"
+        })
+
+        # Phase 4: Search-Based
+        load_sequence.append({
+            "phase": 4,
+            "name": "Search-Based Context",
+            "tier": "search",
+            "trust_threshold": 50,
+            "documents": [],  # Dynamic - determined by query
+            "action": "Retrieve by relevance + tier"
+        })
+
+        # Phase 5: Fallback
+        load_sequence.append({
+            "phase": 5,
+            "name": "LLM Knowledge Fallback",
+            "tier": "fallback",
+            "trust_threshold": 0,
+            "documents": [],  # LLM internal
+            "action": "Use LLM training data only"
+        })
+
+        self.load_order_sequence = load_sequence
+        self.results["phase_2"]["loading_phases"] = load_sequence
+        self.results["phase_2"]["total_phases"] = len(load_sequence)
+
+        print(f"[Phase 2] Loading order defined for {len(load_sequence)} phases")
+        return {
+            "status": "SUCCESS",
+            "phases": len(load_sequence),
+            "total_documents_to_load": sum(len(p.get("documents", [])) for p in load_sequence)
+        }
+
+    def generate_llm_context_builder_pseudo_code(self) -> str:
+        """LLM context builder를 위한 의사 코드 생성"""
+        pseudo_code = """
+// LLM Radar Phase 1 & 2 Context Builder
+function buildContextWithTrustTiers(query, userContext) {
+    context = []
+    loadedDocs = set()
+
+    // Phase 1: Load Canonical (100% trust)
+    for (doc in canonicalDocuments) {
+        if (doc.exists()) {
+            content = loadDocument(doc)
+            context.append({
+                tier: "canonical",
+                trust_level: 100,
+                content: content,
+                loaded_at: phase_1
+            })
+            loadedDocs.add(doc)
+        }
+    }
+
+    // Phase 2: Load Adapter (80% trust)
+    for (doc in adapterDocuments) {
+        if (doc.exists() && doc not in loadedDocs) {
+            content = loadDocument(doc)
+            if (!conflictsWithCanonical(content, context)) {
+                context.append({
+                    tier: "adapter",
+                    trust_level: 80,
+                    content: content,
+                    loaded_at: phase_2
+                })
+                loadedDocs.add(doc)
+            }
+        }
+    }
+
+    // Phase 3: Load Reference (60% trust)
+    for (doc in referenceDocuments) {
+        if (doc.exists() && doc not in loadedDocs) {
+            content = loadDocument(doc)
+            context.append({
+                tier: "reference",
+                trust_level: 60,
+                content: content,
+                loaded_at: phase_3
+            })
+            loadedDocs.add(doc)
+        }
+    }
+
+    // Phase 4: Search-Based (50% trust)
+    relevantDocs = searchDocuments(query, threshold=50)
+    for (doc in relevantDocs) {
+        if (doc not in loadedDocs) {
+            content = loadDocument(doc)
+            context.append({
+                tier: "search",
+                trust_level: 50,
+                content: content,
+                relevance_score: doc.score,
+                loaded_at: phase_4
+            })
+            loadedDocs.add(doc)
+        }
+    }
+
+    // Phase 5: Fallback (0% trust - use LLM knowledge)
+    if (context.isEmpty()) {
+        context.append({
+            tier: "fallback",
+            trust_level: 0,
+            source: "llm_training_data",
+            loaded_at: phase_5
+        })
+    }
+
+    return context
+}
+
+// Conflict detection
+function conflictsWithCanonical(adapterDoc, canonicalContext) {
+    for (canonical in canonicalContext) {
+        if (contradicts(adapterDoc, canonical)) {
+            logWarning("Adapter contradicts canonical")
+            return true
+        }
+    }
+    return false
+}
+"""
+        return pseudo_code
+
+    def generate_report(self) -> Dict:
+        """전체 리포트 생성"""
+        print("\n" + "="*80)
+        print("WBS-9.6 Phase 1 & 2: LLM Radar Trust Tier System")
+        print("="*80)
+
+        # Phase 1
+        phase1_result = self.phase_1_build_trust_labels()
+        print(f"\n[Phase 1 Result] {phase1_result}")
+
+        # Phase 2
+        phase2_result = self.phase_2_build_loading_order()
+        print(f"[Phase 2 Result] {phase2_result}")
+
+        # Summary
+        self.results["summary"] = {
+            "phase_1_status": phase1_result.get("status"),
+            "phase_2_status": phase2_result.get("status"),
+            "total_trust_labels": self.results["phase_1"].get("total_documents", 0),
+            "loading_phases_defined": self.results["phase_2"].get("total_phases", 0),
+            "next_phase": "Phase 3: Dependency Graph",
+            "target_completion": "2026-08-15",
+            "error_rate_target": "50% reduction from baseline"
+        }
+
+        print("\n[Summary]")
+        print(f"  Phase 1 (Trust Labels): {self.results['phase_1'].get('total_documents', 0)} docs labeled")
+        print(f"  Phase 2 (Load Order): {self.results['phase_2'].get('total_phases', 0)} phases defined")
+        print(f"  Tiers: {', '.join(self.results['phase_1'].get('tier_distribution', {}).keys())}")
+
+        return self.results
+
+    def save_report(self, output_file: str = None) -> None:
+        """리포트 저장"""
+        if not output_file:
+            output_file = f"Temp/llm_radar_phase12_{datetime.now().strftime('%Y%m%d_%H%M%S')}.json"
+
+        Path(output_file).parent.mkdir(parents=True, exist_ok=True)
+        with open(output_file, 'w', encoding='utf-8') as f:
+            json.dump(self.results, f, indent=2, ensure_ascii=False)
+
+        print(f"\n[Save] Report saved: {output_file}")
+
+if __name__ == "__main__":
+    radar = LLMRadarPhase12()
+    radar.generate_report()
+    radar.save_report()
+
+    # 의사 코드 출력
+    print("\n" + "="*80)
+    print("Pseudo Code: LLM Context Builder with Trust Tiers")
+    print("="*80)
+    print(radar.generate_llm_context_builder_pseudo_code())