diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
new file mode 100644
index 0000000..230250e
--- /dev/null
+++ b/.claude-plugin/plugin.json
@@ -0,0 +1,6 @@
+{
+  "name": "skill-security-audit",
+  "version": "1.5.0",
+  "description": "Claude Code 스킬 보안 감사 플러그인 — 자격증명 보호, 시스템 안전, 최소 품질 기준 검사 (22개 규칙, Phase 1)",
+  "skills": "./skills"
+}
diff --git a/README.md b/README.md
index 7ae6b78..7799331 100644
--- a/README.md
+++ b/README.md
@@ -58,17 +58,21 @@ HIGH/MEDIUM만      → ⚠️ PASSED with warnings
 
 ```
 skill-security-audit/
-├── SKILL.md                          # 메인 스킬 (검사 워크플로우)
-├── ruleset-version.txt               # 룰셋 버전 고정 (1.0.0)
-├── references/
-│   ├── security-checklist.md         # SEC-*, SBX-* 규칙
-│   ├── destructive-ops-checklist.md  # DST-* 규칙
-│   └── quality-checklist.md          # QUA-* 규칙
-├── assets/
-│   ├── report-template.md            # Markdown 보고서 템플릿
-│   └── slack-message-template.json   # Slack Block Kit 템플릿
-├── config/
-│   └── approved-reviewers.yml        # audit-ignore 승인자 목록
+├── .claude-plugin/
+│   └── plugin.json             # 플러그인 메타데이터
+├── skills/
+│   └── skill-security-audit/
+│       ├── SKILL.md                    # 메인 스킬 (검사 워크플로우)
+│       ├── ruleset-version.txt         # 룰셋 버전 고정
+│       ├── references/
+│       │   ├── security-checklist.md   # SEC-*, SBX-* 규칙
+│       │   ├── destructive-ops-checklist.md  # DST-* 규칙
+│       │   └── quality-checklist.md    # QUA-* 규칙
+│       ├── assets/
+│       │   ├── report-template.md      # Markdown 보고서 템플릿
+│       │   └── slack-message-template.json  # Slack Block Kit 템플릿
+│       └── config/
+│           └── approved-reviewers.yml  # audit-ignore 승인자 목록
 ├── .github/workflows/
 │   └── skill-audit.yml               # GitHub Actions 워크플로우
 └── docs/
diff --git a/SKILL.md b/skills/skill-security-audit/SKILL.md
similarity index 100%
rename from SKILL.md
rename to skills/skill-security-audit/SKILL.md
diff --git a/assets/report-template.md b/skills/skill-security-audit/assets/report-template.md
similarity index 100%
rename from assets/report-template.md
rename to skills/skill-security-audit/assets/report-template.md
diff --git a/assets/slack-message-template.json b/skills/skill-security-audit/assets/slack-message-template.json
similarity index 100%
rename from assets/slack-message-template.json
rename to skills/skill-security-audit/assets/slack-message-template.json
diff --git a/config/approved-reviewers.yml b/skills/skill-security-audit/config/approved-reviewers.yml
similarity index 100%
rename from config/approved-reviewers.yml
rename to skills/skill-security-audit/config/approved-reviewers.yml
diff --git a/references/destructive-ops-checklist.md b/skills/skill-security-audit/references/destructive-ops-checklist.md
similarity index 100%
rename from references/destructive-ops-checklist.md
rename to skills/skill-security-audit/references/destructive-ops-checklist.md
diff --git a/references/quality-checklist.md b/skills/skill-security-audit/references/quality-checklist.md
similarity index 100%
rename from references/quality-checklist.md
rename to skills/skill-security-audit/references/quality-checklist.md
diff --git a/references/security-checklist.md b/skills/skill-security-audit/references/security-checklist.md
similarity index 100%
rename from references/security-checklist.md
rename to skills/skill-security-audit/references/security-checklist.md
diff --git a/ruleset-version.txt b/skills/skill-security-audit/ruleset-version.txt
similarity index 100%
rename from ruleset-version.txt
rename to skills/skill-security-audit/ruleset-version.txt