diff --git a/250814_rb8001_통합_트러블슈팅.md b/250814_rb8001_통합_트러블슈팅.md
index 73102ea..e46186e 100644
--- a/250814_rb8001_통합_트러블슈팅.md
+++ b/250814_rb8001_통합_트러블슈팅.md
@@ -195,7 +195,7 @@ sshpass -p "19800508" ssh -o StrictHostKeyChecking=no -f -N \
 **최종 설정**:
 ```bash
 # .env
-DATABASE_URL=postgresql://robeings:robeings@localhost:5433/auth_db
+DATABASE_URL=postgresql://robeings:robeings@localhost:5433/main_db
 PORT=8507
 ```
 
@@ -310,7 +310,7 @@ curl http://localhost:8507/health
 ps aux | grep "5433:localhost:5432"
 
 # PostgreSQL 접속 테스트
-PGPASSWORD=19800508 psql -h localhost -p 5433 -U admin -d auth_db
+PGPASSWORD=19800508 psql -h localhost -p 5433 -U admin -d main_db
 ```
 
 ---
diff --git a/250817_email_skill_integration_status.md b/250817_email_skill_integration_status.md
index f1457f1..6c857b0 100644
--- a/250817_email_skill_integration_status.md
+++ b/250817_email_skill_integration_status.md
@@ -212,7 +212,7 @@ async def compose_email(request):
 Host: 124.55.18.179
 Port: 51123
 User: heejae
-Database: auth_db
+Database: main_db
 PostgreSQL User: robeings/robeings
 ```
 
diff --git a/250818_gmail_tokens_database_setup.md b/250818_gmail_tokens_database_setup.md
index f8a1e41..610bd10 100644
--- a/250818_gmail_tokens_database_setup.md
+++ b/250818_gmail_tokens_database_setup.md
@@ -11,7 +11,7 @@
 ```bash
 Host: localhost
 Port: 5432
-Database: auth_db
+Database: main_db
 User: robeings
 Password: robeings
 ```
@@ -194,7 +194,7 @@ from psycopg2.extras import RealDictCursor
 # 연결
 conn = psycopg2.connect(
     host="localhost",
-    database="auth_db",
+    database="main_db",
     user="robeings",
     password="robeings"
 )
diff --git a/300_architecture/database/README.md b/300_architecture/database/README.md
index a569208..1a96c82 100644
--- a/300_architecture/database/README.md
+++ b/300_architecture/database/README.md
@@ -22,7 +22,7 @@
 ## 데이터베이스 정보
 - **Host**: 192.168.219.45 (51123 서버)
 - **Port**: 5432
-- **Database**: auth_db
+- **Database**: main_db
 - **User**: robeings
 - **Password**: robeings
 
diff --git a/300_architecture/database/tables.md b/300_architecture/database/tables.md
index 44903e2..3aa6fbc 100644
--- a/300_architecture/database/tables.md
+++ b/300_architecture/database/tables.md
@@ -1,7 +1,7 @@
 # PostgreSQL 테이블 구조
 
 ## 작성일: 2025-08-20
-## 데이터베이스: auth_db
+## 데이터베이스: main_db
 
 ---
 
diff --git a/_archive/docs/architecture/auth-server-database-schema.md b/_archive/docs/architecture/auth-server-database-schema.md
index 55e51c1..3e00e69 100644
--- a/_archive/docs/architecture/auth-server-database-schema.md
+++ b/_archive/docs/architecture/auth-server-database-schema.md
@@ -1,7 +1,7 @@
 # auth-server 데이터베이스 스키마
 
 **날짜**: 2025-07-29  
-**데이터베이스**: auth_db (PostgreSQL)  
+**데이터베이스**: main_db (PostgreSQL)  
 **목적**: 멀티테넌트 B2B Slack 봇 인증 관리 시스템
 
 ## 개요
diff --git a/_archive/docs/architecture/frontend-architecture-strategy.md b/_archive/docs/architecture/frontend-architecture-strategy.md
index dbd753c..13675cd 100644
--- a/_archive/docs/architecture/frontend-architecture-strategy.md
+++ b/_archive/docs/architecture/frontend-architecture-strategy.md
@@ -87,7 +87,7 @@
 
 ```sql
 -- PostgreSQL@51123:5432
-├── auth_db (기존)
+├── main_db (기존)
 │   ├── companies
 │   └── slack_workspaces
 │
@@ -117,7 +117,7 @@ WS   /ws/robbing/realtime             # 실시간 상태 업데이트
 
 **위치**: auth-server 내장 또는 별도 React 앱  
 **데이터 저장**:
-- 회사 정보: PostgreSQL `auth_db.companies`
+- 회사 정보: PostgreSQL `main_db.companies`
 - 세션 관리: JWT 토큰
 - OAuth 토큰: 파일시스템 `/tokens/`
 
diff --git a/ideas/250818_conversation_logs_및_robing_stats_활용_계획.md b/ideas/250818_conversation_logs_및_robing_stats_활용_계획.md
index 1e7ef60..2218980 100644
--- a/ideas/250818_conversation_logs_및_robing_stats_활용_계획.md
+++ b/ideas/250818_conversation_logs_및_robing_stats_활용_계획.md
@@ -8,7 +8,7 @@
 
 ### 1.1 미사용 테이블 현황
 ```sql
--- auth_db에 존재하지만 전혀 사용되지 않는 테이블들
+-- main_db에 존재하지만 전혀 사용되지 않는 테이블들
 conversation_logs: 0 records (0 KB)
 robing_stats: 0 records (0 KB)  
 robing_settings: 0 records (0 KB)
diff --git a/ideas/250819_claude_사용자구분및ChromaDB격리문제.md b/ideas/250819_claude_사용자구분및ChromaDB격리문제.md
index 777b89e..ac94c96 100644
--- a/ideas/250819_claude_사용자구분및ChromaDB격리문제.md
+++ b/ideas/250819_claude_사용자구분및ChromaDB격리문제.md
@@ -178,7 +178,7 @@ CREATE TABLE user_identity_mapping (
 ### slack_user_mapping 테이블 검증 완료
 
 #### 데이터베이스 상태
-- **테이블 존재**: ✅ auth_db.slack_user_mapping
+- **테이블 존재**: ✅ main_db.slack_user_mapping
 - **정확한 매핑 데이터**:
   ```
   U0925SXQFDK → aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa → 김종태
diff --git a/ideas/auth_system_analysis.md b/ideas/auth_system_analysis.md
index 24a93d3..fb70a09 100644
--- a/ideas/auth_system_analysis.md
+++ b/ideas/auth_system_analysis.md
@@ -2,7 +2,7 @@
 
 ## 현재 구조 분석
 
-### 1. 데이터베이스 (PostgreSQL - auth_db)
+### 1. 데이터베이스 (PostgreSQL - main_db)
 
 #### Users 테이블 구조
 ```sql
@@ -294,7 +294,7 @@ email ↔ slack_id ↔ username
 - 결과: 동일 username으로 통합 메모리
 ```
 
-**관련 문서**: [Auth DB 테이블 구조 단순화 방안](/plans/250812_auth_db_테이블_단순화_방안.md)
+**관련 문서**: [Auth DB 테이블 구조 단순화 방안](/plans/250812_main_db_테이블_단순화_방안.md)
 
 ##### 현재 테이블 구조 (5개)
 - **users**: 사용자 기본 정보 (email, username)
diff --git a/plans/250819_gmail_item_implementation_plan.md b/plans/250819_gmail_item_implementation_plan.md
index ad85529..2fd44f2 100644
--- a/plans/250819_gmail_item_implementation_plan.md
+++ b/plans/250819_gmail_item_implementation_plan.md
@@ -334,7 +334,7 @@ POSTGRES_HOST=192.168.219.45
 POSTGRES_PORT=5432
 
 # 공통
-POSTGRES_DB=auth_db
+POSTGRES_DB=main_db
 POSTGRES_USER=robeings
 POSTGRES_PASSWORD=robeings
 ```
@@ -344,16 +344,16 @@ POSTGRES_PASSWORD=robeings
 # rb8001 (51124 서버)
 SKILL_EMAIL_URL=http://localhost:8501  # host 모드이므로 localhost
 STATE_SERVICE_URL=http://localhost:9024
-DATABASE_URL=postgresql://robeings:robeings@192.168.219.45:5432/auth_db
+DATABASE_URL=postgresql://robeings:robeings@192.168.219.45:5432/main_db
 
 # skill-email (51124 서버)
 TOKEN_PROVIDER=database  # file → database
-POSTGRES_CONNECTION_STRING=postgresql://robeings:robeings@192.168.219.45:5432/auth_db
+POSTGRES_CONNECTION_STRING=postgresql://robeings:robeings@192.168.219.45:5432/main_db
 
 # robeing-monitor (51124 서버)
 PORT=9024
 SERVICE_NAME=robeing-monitor
-DATABASE_URL=postgresql://robeings:robeings@192.168.219.45:5432/auth_db
+DATABASE_URL=postgresql://robeings:robeings@192.168.219.45:5432/main_db
 ```
 
 ---
diff --git a/plans/README.md b/plans/README.md
index 54b7a8c..efed14a 100644
--- a/plans/README.md
+++ b/plans/README.md
@@ -10,7 +10,7 @@
 ## 현재 진행 중인 계획들
 
 ### 1. Slack 통합 개선
-- `250812_auth_db_테이블_단순화_방안.md` - DB 구조 개선 계획
+- `250812_main_db_테이블_단순화_방안.md` - DB 구조 개선 계획
 - `250812_로컬개발자_Slack사용자매핑_구현계획.md` - Slack 사용자 매핑 구현
 
 ### 2. 서비스 구조화
diff --git a/plans/completed/250819_rb8001_gmail_integration_completed.md b/plans/completed/250819_rb8001_gmail_integration_completed.md
index ebd214a..4c458ab 100644
--- a/plans/completed/250819_rb8001_gmail_integration_completed.md
+++ b/plans/completed/250819_rb8001_gmail_integration_completed.md
@@ -28,7 +28,7 @@ SKILL_EMAIL_URL=http://localhost:8501
 MONITOR_SERVICE_URL=http://localhost:9024
 
 # PostgreSQL for Gmail tokens (SSH tunnel)
-POSTGRES_CONNECTION_STRING=postgresql://robeings:robeings@localhost:5433/auth_db
+POSTGRES_CONNECTION_STRING=postgresql://robeings:robeings@localhost:5433/main_db
 ```
 
 ### 2.2 Gmail 통합 모듈 구현
@@ -370,7 +370,7 @@ curl -X POST http://localhost:8501/process \
 # PostgreSQL 장착 상태 확인
 python3 -c "
 import psycopg2
-conn = psycopg2.connect('postgresql://robeings:robeings@localhost:5433/auth_db')
+conn = psycopg2.connect('postgresql://robeings:robeings@localhost:5433/main_db')
 cur = conn.cursor()
 cur.execute('SELECT user_id, is_equipped FROM gmail_tokens')
 for row in cur.fetchall():
diff --git a/plans/completed/250819_skill_email_db_connection_completed.md b/plans/completed/250819_skill_email_db_connection_completed.md
index a781d88..0153c75 100644
--- a/plans/completed/250819_skill_email_db_connection_completed.md
+++ b/plans/completed/250819_skill_email_db_connection_completed.md
@@ -36,7 +36,7 @@ PORT=8501
 TOKEN_PROVIDER=database
 
 # PostgreSQL Connection (SSH tunnel)
-POSTGRES_CONNECTION_STRING=postgresql://robeings:robeings@localhost:5433/auth_db
+POSTGRES_CONNECTION_STRING=postgresql://robeings:robeings@localhost:5433/main_db
 
 # Service Name
 SERVICE_NAME=skill-email
@@ -195,7 +195,7 @@ sshpass -p "19800508" ssh -f -N -L 5433:localhost:5432 admin@124.55.18.179 -p 51
 
 - 로컬 포트 5433 → 원격 PostgreSQL 5432
 - 51123 서버 (124.55.18.179)의 PostgreSQL 접근
-- auth_db 데이터베이스 사용
+- main_db 데이터베이스 사용
 
 ---
 
@@ -326,7 +326,7 @@ sshpass -p "19800508" ssh -f -N -L 5433:localhost:5432 admin@124.55.18.179 -p 51
 # 토큰 상태 확인
 python3 -c "
 import psycopg2
-conn = psycopg2.connect('postgresql://robeings:robeings@localhost:5433/auth_db')
+conn = psycopg2.connect('postgresql://robeings:robeings@localhost:5433/main_db')
 cur = conn.cursor()
 cur.execute('SELECT user_id, is_equipped FROM gmail_tokens')
 for row in cur.fetchall():
diff --git a/troubleshooting/250729_happybell80_서비스구축및배포복구.md b/troubleshooting/250729_happybell80_서비스구축및배포복구.md
index 83b8b9d..09c1677 100644
--- a/troubleshooting/250729_happybell80_서비스구축및배포복구.md
+++ b/troubleshooting/250729_happybell80_서비스구축및배포복구.md
@@ -189,7 +189,7 @@ Claude가 세션 시작 시 규칙을 제대로 따르지 않음. CLAUDE.md 재
    - nginx를 통한 https://auth.ro-being.com 프록시 설정 확인
    - JWT/OAuth 키 관리 상태 점검
 
-2. **PostgreSQL auth_db 스키마 분석**:
+2. **PostgreSQL main_db 스키마 분석**:
    - `companies` 테이블: 회사별 서브도메인 관리 (2개 회사 등록)
    - `slack_workspaces` 테이블: Slack 봇 토큰 관리 (2개 워크스페이스 활성)
    - 멀티테넌트 B2B SaaS 구조 확인
diff --git a/troubleshooting/250803_PostgreSQL_SSH_터널_연결.md b/troubleshooting/250803_PostgreSQL_SSH_터널_연결.md
index 897993a..6375bd7 100644
--- a/troubleshooting/250803_PostgreSQL_SSH_터널_연결.md
+++ b/troubleshooting/250803_PostgreSQL_SSH_터널_연결.md
@@ -14,7 +14,7 @@ sshpass -p '19800508' ssh -N -L 5433:localhost:5432 admin@124.55.18.179 -p 51123
 ### 2. .env 파일 설정
 ```bash
 # /home/heejae/robing-state-service/.env
-DATABASE_URL=postgresql://robeings:robeings@localhost:5433/auth_db
+DATABASE_URL=postgresql://robeings:robeings@localhost:5433/main_db
 SERVICE_NAME=state
 PORT=8002
 LOG_LEVEL=INFO
@@ -23,7 +23,7 @@ LOG_LEVEL=INFO
 ### 3. 연결 확인
 ```bash
 # psql로 테스트
-psql postgresql://robeings:robeings@localhost:5433/auth_db -c "SELECT 1"
+psql postgresql://robeings:robeings@localhost:5433/main_db -c "SELECT 1"
 ```
 
 ## 연결 정보
@@ -33,7 +33,7 @@ psql postgresql://robeings:robeings@localhost:5433/auth_db -c "SELECT 1"
 - **SSH 비밀번호**: 19800508
 - **PostgreSQL 사용자**: robeings
 - **PostgreSQL 비밀번호**: robeings
-- **데이터베이스**: auth_db
+- **데이터베이스**: main_db
 
 ## 주의사항
 1. SSH 터널은 백그라운드에서 실행되므로 시스템 재시작 시 다시 생성 필요
diff --git a/troubleshooting/250809_happybell80_robing-gateway구현.md b/troubleshooting/250809_happybell80_robing-gateway구현.md
index d49ffba..4edc1e3 100644
--- a/troubleshooting/250809_happybell80_robing-gateway구현.md
+++ b/troubleshooting/250809_happybell80_robing-gateway구현.md
@@ -32,13 +32,13 @@ robing-gateway/
 **핵심 기능**:
 1. 사용자-로빙 매핑 관리
 2. 메모리 캐시로 성능 최적화
-3. 기존 auth_db 테이블 활용 (workspaces, workspace_members)
+3. 기존 main_db 테이블 활용 (workspaces, workspace_members)
 4. 헬스체크 및 모니터링 엔드포인트
 
 ### 23서버팀 피드백
 
 **중요 변경사항 - 새 테이블 불필요**:
-- 기존 auth_db의 workspaces, workspace_members 테이블 활용
+- 기존 main_db의 workspaces, workspace_members 테이블 활용
 - workspace_members에서 user_id로 robing 정보 조회
 - JOIN 쿼리로 사용자 → 워크스페이스 → 로빙 매핑
 
@@ -81,7 +81,7 @@ body = {
 **해결**:
 ```yaml
 # .env.example 수정
-DATABASE_URL=postgresql+asyncpg://robeings:패스워드@host.docker.internal:5432/auth_db
+DATABASE_URL=postgresql+asyncpg://robeings:패스워드@host.docker.internal:5432/main_db
 ```
 
 ### 문제 4: Gitea Actions 환경변수
@@ -108,7 +108,7 @@ SELECT COUNT(*) FROM workspaces;  # 2 (테스트 데이터)
 
 **현재 상태**:
 - robing-gateway 포트 8100에서 정상 실행
-- PostgreSQL auth_db 연결 성공
+- PostgreSQL main_db 연결 성공
 - DEFAULT_ROBING_ID: rb10508_micro 설정
 - 메모리 캐시 활성화 (30분 TTL)
 
diff --git a/troubleshooting/250818_happybell80_대화히스토리구현.md b/troubleshooting/250818_happybell80_대화히스토리구현.md
index fc30318..3ca5241 100644
--- a/troubleshooting/250818_happybell80_대화히스토리구현.md
+++ b/troubleshooting/250818_happybell80_대화히스토리구현.md
@@ -304,17 +304,17 @@ const response = await fetch(`${ROBING_API_URL}/api/history?${params}`)
 ### 원인 분석
 ```yaml
 # docker-compose.yml 기본값 (틀림)
-DATABASE_URL=postgresql+asyncpg://postgres:postgres@host.docker.internal:5432/auth_db
+DATABASE_URL=postgresql+asyncpg://postgres:postgres@host.docker.internal:5432/main_db
 
 # 실제 필요한 값
-DATABASE_URL=postgresql+asyncpg://robeings:robeings@host.docker.internal:5432/auth_db
+DATABASE_URL=postgresql+asyncpg://robeings:robeings@host.docker.internal:5432/main_db
 ```
 
 ### 해결 과정 (51123 서버)
 1. **환경변수 수정**
 ```bash
 cd /home/admin/ivada_project/robeing-gateway
-echo 'DATABASE_URL=postgresql+asyncpg://robeings:robeings@host.docker.internal:5432/auth_db' > .env
+echo 'DATABASE_URL=postgresql+asyncpg://robeings:robeings@host.docker.internal:5432/main_db' > .env
 ```
 
 2. **컨테이너 재시작**
@@ -327,7 +327,7 @@ docker-compose up -d
 ```bash
 docker logs robing-gateway --tail 50
 # "Database connection established successfully" 확인
-# "All required tables found in auth_db" 확인
+# "All required tables found in main_db" 확인
 ```
 
 ### 해결 결과
diff --git a/troubleshooting/250820_happybell80_사용자별로빙동적할당구현.md b/troubleshooting/250820_happybell80_사용자별로빙동적할당구현.md
index d8dea6b..7746d72 100644
--- a/troubleshooting/250820_happybell80_사용자별로빙동적할당구현.md
+++ b/troubleshooting/250820_happybell80_사용자별로빙동적할당구현.md
@@ -118,7 +118,7 @@ async def get_stats(robing_id: str):
         port=5432,
         user='robeings',
         password='robeings',
-        database='auth_db'
+        database='main_db'
     )
     
     # robing_stats 테이블 조회