diff --git a/.github/scripts/generate-pr-description.sh b/.github/scripts/generate-pr-description.sh
new file mode 100755
index 0000000..4abae56
--- /dev/null
+++ b/.github/scripts/generate-pr-description.sh
@@ -0,0 +1,157 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+TARGET_BRANCH="$1"
+SOURCE_BRANCH="$2"
+
+if [ -z "${GEMINI_API_KEY:-}" ]; then
+  echo "GEMINI_API_KEY is not configured." >&2
+  exit 1
+fi
+
+git fetch origin "$TARGET_BRANCH" --depth=1
+
+MERGE_BASE=$(git merge-base "origin/$TARGET_BRANCH" HEAD)
+COMMITS=$(git log --no-merges "$MERGE_BASE..HEAD" --oneline)
+DIFF_STATS=$(git diff --stat "$MERGE_BASE..HEAD")
+DIFF_CONTENT=$(git diff --unified=3 "$MERGE_BASE..HEAD" \
+  -- . \
+  ':(exclude)package-lock.json' \
+  ':(exclude)yarn.lock' \
+  ':(exclude)pnpm-lock.yaml' \
+  ':(exclude)dist/**' \
+  ':(exclude).gitignore')
+
+if [ -z "$DIFF_CONTENT" ]; then
+  {
+    echo "should_create=false"
+    echo "title=[chore] 변경 사항 없음"
+    echo "body<<EOF"
+    echo "변경 사항이 없어 PR을 생성하지 않습니다."
+    echo "EOF"
+  } >> "$GITHUB_OUTPUT"
+  exit 0
+fi
+
+PR_TEMPLATE=$(cat .github/PULL_REQUEST_TEMPLATE.md)
+
+PROMPT=$(cat <<EOF
+당신은 GitHub Pull Request 제목과 본문 초안을 작성하는 한국어 기술 문서 작성자입니다.
+
+목표:
+- feature 브랜치에서 test 브랜치로 보내는 PR의 제목과 본문 초안을 생성합니다.
+- 저장소 PR 템플릿의 섹션 구조를 유지한 상태로 각 항목을 초안 형태로 채웁니다.
+
+제목 규칙:
+- 반드시 한국어로 작성합니다.
+- 형식은 "[type] 작업 내용"입니다.
+- type은 feat, fix, refactor, chore, docs, test, ci 중 하나만 사용합니다.
+- 60자 이내를 권장합니다.
+
+본문 규칙:
+- 반드시 한국어 마크다운으로 작성합니다.
+- 변경 사항은 커밋 목록, 변경 파일 통계, 상세 diff에 근거해 작성합니다.
+- 아래에 제공되는 PR 템플릿의 헤더 구조와 순서를 그대로 유지합니다.
+- 확실하지 않은 내용은 추측하지 말고 "확인 필요" 또는 "직접 보완 필요"라고 적습니다.
+- 테스트를 실제로 실행했다고 추정하지 않습니다.
+- 각 섹션은 1~3개의 bullet로 짧고 선명하게 작성합니다.
+- HTML 주석은 제거하고 실제 초안 문장을 작성합니다.
+
+출력 형식:
+TITLE: [feat] 예시 제목
+---
+아래 PR 템플릿 구조를 유지한 완성된 마크다운 본문
+
+PR 정보:
+- base branch: $TARGET_BRANCH
+- head branch: $SOURCE_BRANCH
+
+PR 템플릿:
+---
+$PR_TEMPLATE
+---
+
+커밋 목록:
+$COMMITS
+
+변경 파일 통계:
+$DIFF_STATS
+
+상세 diff:
+$DIFF_CONTENT
+EOF
+)
+
+REQUEST_BODY=$(jq -n --arg prompt "$PROMPT" '{
+  contents: [
+    {
+      role: "user",
+      parts: [{ text: $prompt }]
+    }
+  ],
+  generationConfig: {
+    temperature: 0.2
+  }
+}')
+
+GEMINI_RESPONSE=""
+for attempt in 1 2 3; do
+  HTTP_RESPONSE=$(curl -sS -w '\n%{http_code}' -X POST \
+    "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent?key=${GEMINI_API_KEY}" \
+    -H 'Content-Type: application/json' \
+    -d "$REQUEST_BODY")
+
+  HTTP_STATUS=$(printf '%s' "$HTTP_RESPONSE" | tail -n 1)
+  GEMINI_RESPONSE=$(printf '%s' "$HTTP_RESPONSE" | sed '$d')
+
+  if [ "$HTTP_STATUS" = "200" ]; then
+    break
+  fi
+
+  if [ "$attempt" -eq 3 ] || { [ "$HTTP_STATUS" != "429" ] && [ "${HTTP_STATUS#5}" = "$HTTP_STATUS" ]; }; then
+    echo "Gemini API request failed with status $HTTP_STATUS" >&2
+    echo "$GEMINI_RESPONSE" >&2
+    exit 1
+  fi
+
+  sleep $((attempt * 2))
+done
+
+FULL_RESPONSE=$(printf '%s' "$GEMINI_RESPONSE" | jq -r '
+  .candidates[0].content.parts
+  | map(.text // "")
+  | join("")
+')
+
+if [ -z "$FULL_RESPONSE" ] || [ "$FULL_RESPONSE" = "null" ]; then
+  echo "Gemini API returned an empty response." >&2
+  echo "$GEMINI_RESPONSE" >&2
+  exit 1
+fi
+
+PR_TITLE=$(printf '%s\n' "$FULL_RESPONSE" | grep '^TITLE:' | sed 's/^TITLE: //')
+PR_BODY_DRAFT=$(printf '%s\n' "$FULL_RESPONSE" | sed '1,/^---$/d')
+
+if [ -z "$PR_TITLE" ] || [ -z "$PR_BODY_DRAFT" ]; then
+  echo "Failed to parse Gemini response." >&2
+  exit 1
+fi
+
+PR_BODY=$(cat <<EOF
+$PR_BODY_DRAFT
+EOF
+)
+
+TITLE_FILE=$(mktemp)
+BODY_FILE=$(mktemp)
+
+printf '%s' "$PR_TITLE" > "$TITLE_FILE"
+printf '%s' "$PR_BODY" > "$BODY_FILE"
+
+{
+  echo "should_create=true"
+  echo "title=$PR_TITLE"
+  echo "title_file=$TITLE_FILE"
+  echo "body_file=$BODY_FILE"
+} >> "$GITHUB_OUTPUT"
diff --git a/.github/workflows/ai-pr-description.yml b/.github/workflows/ai-pr-description.yml
new file mode 100644
index 0000000..3dfe6b4
--- /dev/null
+++ b/.github/workflows/ai-pr-description.yml
@@ -0,0 +1,182 @@
+name: AI PR Summary
+
+on:
+  pull_request:
+    branches:
+      - test
+      - main
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - ready_for_review
+
+permissions:
+  contents: read
+  pull-requests: write
+
+concurrency:
+  group: ai-pr-summary-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  update-pr-summary:
+    if: github.event.pull_request.head.repo.full_name == github.repository
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Build PR diff
+        id: diff
+        env:
+          BASE_REF: ${{ github.event.pull_request.base.ref }}
+        run: |
+          git fetch origin "${BASE_REF}" --depth=1
+          git diff --unified=3 "origin/${BASE_REF}...HEAD" \
+            -- . \
+            ':(exclude)package-lock.json' \
+            ':(exclude)yarn.lock' \
+            ':(exclude)pnpm-lock.yaml' \
+            ':(exclude)dist/**' \
+            ':(exclude).gitignore' \
+            > pr.diff
+
+          if [ ! -s pr.diff ]; then
+            echo "has_diff=false" >> "$GITHUB_OUTPUT"
+          else
+            echo "has_diff=true" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Generate AI summary and update PR body
+        if: steps.diff.outputs.has_diff == 'true'
+        uses: actions/github-script@v7
+        env:
+          GEMINI_API_KEY: ${{ secrets.PR_GEMINI_API_KEY }}
+          PR_DIFF_PATH: pr.diff
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const fs = require('fs');
+
+            if (!process.env.GEMINI_API_KEY) {
+              core.setFailed('PR_GEMINI_API_KEY secret is not configured.');
+              return;
+            }
+
+            const diff = fs.readFileSync(process.env.PR_DIFF_PATH, 'utf8');
+            const existingBody = context.payload.pull_request.body ?? '';
+            const startMarker = '<!-- ai-pr-summary:start -->';
+            const endMarker = '<!-- ai-pr-summary:end -->';
+            const rawManualBody = existingBody.includes(startMarker)
+              ? existingBody.split(startMarker)[0].trimEnd()
+              : existingBody.trimEnd();
+
+            const manualBody = rawManualBody
+              .replace(/(?:\n\s*---\s*)+$/g, '')
+              .trimEnd();
+
+            const prompt = `
+            당신은 GitHub Pull Request 하단에 붙는 AI 요약 블록을 작성하는 한국어 기술 문서 작성자입니다.
+
+            규칙:
+            - 반드시 한국어 마크다운으로 작성합니다.
+            - 변경 사항은 반드시 diff에 근거해 작성합니다.
+            - 확실하지 않은 내용은 추측하지 말고 "확인 필요"라고 적습니다.
+            - 각 섹션은 1~3개의 bullet로 짧고 선명하게 작성합니다.
+            - 아래 형식을 정확히 지킵니다.
+
+            출력 형식:
+            ## 🤖 AI PR 분석 결과
+            _아래 내용은 변경 diff를 기준으로 자동 생성되었습니다._
+
+            ### 📝 Summary
+            - ...
+
+            ### ⚒️ 상세 변경 사항
+            - ...
+
+            ### 🔍 리뷰어 주의사항
+            - ...
+
+            PR 정보:
+            - base branch: ${context.payload.pull_request.base.ref}
+            - head branch: ${context.payload.pull_request.head.ref}
+            - title: ${context.payload.pull_request.title}
+
+            상세 diff:
+            ---
+            ${diff}
+            ---
+            `;
+
+            const endpoint =
+              'https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent?key=' +
+              encodeURIComponent(process.env.GEMINI_API_KEY);
+            const payload = {
+              contents: [{ role: 'user', parts: [{ text: prompt }] }],
+              generationConfig: { temperature: 0.2 },
+            };
+
+            let response;
+            let lastErrorText = '';
+
+            for (let attempt = 1; attempt <= 3; attempt += 1) {
+              response = await fetch(endpoint, {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify(payload),
+              });
+
+              if (response.ok) {
+                break;
+              }
+
+              lastErrorText = await response.text();
+              const shouldRetry = response.status === 429 || response.status >= 500;
+
+              if (!shouldRetry || attempt === 3) {
+                core.setFailed(
+                  `Gemini API request failed after ${attempt} attempt(s): ${response.status} ${lastErrorText}`,
+                );
+                return;
+              }
+
+              await new Promise((resolve) => setTimeout(resolve, attempt * 2000));
+            }
+
+            const data = await response.json();
+            const generatedText =
+              data.candidates?.[0]?.content?.parts
+                ?.map((part) => part.text || '')
+                .join('')
+                .trim() || '';
+
+            if (!generatedText) {
+              core.setFailed('Gemini API returned an empty response.');
+              return;
+            }
+
+            const aiSection = `${startMarker}
+
+            ${generatedText}
+
+            ${endMarker}`;
+
+            const nextBody = manualBody
+              ? `${manualBody}\n\n---\n\n${aiSection}`
+              : aiSection;
+
+            await github.rest.pulls.update({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.issue.number,
+              body: nextBody,
+            });
+
+      - name: Skip when diff is empty
+        if: steps.diff.outputs.has_diff != 'true'
+        run: echo "No meaningful diff found after exclusions."
diff --git a/.github/workflows/create-pr.yml b/.github/workflows/create-pr.yml
new file mode 100644
index 0000000..43edab8
--- /dev/null
+++ b/.github/workflows/create-pr.yml
@@ -0,0 +1,107 @@
+name: Automated PR Creation
+
+on:
+  push:
+    branches-ignore:
+      - main
+      - test
+
+env:
+  TARGET_BRANCH: test
+
+permissions:
+  contents: read
+  pull-requests: write
+
+concurrency:
+  group: create-pr-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  create-pull-request:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Check for existing PR
+        id: check-pr
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          SOURCE_BRANCH="${GITHUB_REF#refs/heads/}"
+          existing_pr=$(gh pr list \
+            --head "$SOURCE_BRANCH" \
+            --base "${TARGET_BRANCH}" \
+            --state open \
+            --json number \
+            --jq '.[0].number')
+
+          if [ -n "$existing_pr" ]; then
+            echo "exists=true" >> "$GITHUB_OUTPUT"
+            echo "PR already exists: #$existing_pr"
+          else
+            echo "exists=false" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Generate PR title and description
+        if: steps.check-pr.outputs.exists == 'false'
+        id: generate-pr
+        env:
+          GEMINI_API_KEY: ${{ secrets.PR_GEMINI_API_KEY }}
+        run: |
+          SOURCE_BRANCH="${GITHUB_REF#refs/heads/}"
+          bash .github/scripts/generate-pr-description.sh \
+            "${TARGET_BRANCH}" \
+            "$SOURCE_BRANCH"
+
+      - name: Create Pull Request
+        if: steps.check-pr.outputs.exists == 'false' && steps.generate-pr.outputs.should_create == 'true'
+        continue-on-error: true
+        id: create-pr
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TZ: Asia/Seoul
+        run: |
+          SOURCE_BRANCH="${GITHUB_REF#refs/heads/}"
+          gh pr create \
+            --base "${TARGET_BRANCH}" \
+            --head "$SOURCE_BRANCH" \
+            --title "$(cat "${{ steps.generate-pr.outputs.title_file }}")" \
+            --body-file "${{ steps.generate-pr.outputs.body_file }}"
+
+      - name: Publish PR draft summary
+        if: steps.check-pr.outputs.exists == 'false' && steps.generate-pr.outputs.should_create == 'true'
+        env:
+          SOURCE_BRANCH: ${{ github.ref_name }}
+        run: |
+          {
+            echo "## PR Draft Suggestion"
+            echo
+            if [ "${{ steps.create-pr.outcome }}" = "success" ]; then
+              echo "- Status: PR created successfully."
+            else
+              echo "- Status: Automatic PR creation failed. Use the draft below to open the PR manually."
+              echo "- Reason: GitHub Actions may not have permission to create pull requests in this repository."
+            fi
+            echo "- Base branch: ${TARGET_BRANCH}"
+            echo "- Head branch: ${SOURCE_BRANCH}"
+            echo
+            echo "### Suggested Title"
+            echo
+            cat "${{ steps.generate-pr.outputs.title_file }}"
+            echo
+            echo "### Suggested Draft Body"
+            echo
+            echo '```md'
+            cat "${{ steps.generate-pr.outputs.body_file }}"
+            echo
+            echo '```'
+          } >> "$GITHUB_STEP_SUMMARY"
+
+      - name: Skip when diff is empty
+        if: steps.check-pr.outputs.exists == 'false' && steps.generate-pr.outputs.should_create != 'true'
+        run: echo "No meaningful diff found against test."