diff --git a/analyzers/weekly_digest.py b/analyzers/weekly_digest.py
new file mode 100644
index 0000000..dce5672
--- /dev/null
+++ b/analyzers/weekly_digest.py
@@ -0,0 +1,367 @@
+"""Weekly digest synthesizer - reads all daily digests and generates a week-level analysis."""
+
+import logging
+import os
+import subprocess
+import sys
+from datetime import datetime, timezone, timedelta
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from tools.config import load_secrets, get_output_dir
+from tools.llm import DeepSeekClient
+
+logger = logging.getLogger(__name__)
+
+TZ_BEIJING = timezone(timedelta(hours=8))
+PROJECT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+WEEKLY_SYSTEM_PROMPT = """你是一个私人思考伙伴。你的任务是认真阅读用户过去一周的7份日报，写一篇有深度的周度分析报告。
+
+## 核心原则
+
+你读的是日报——不是原始灵感记录，而是已经经过每日分析提炼的内容。你的工作是：
+
+1. **提炼跨日主线**：7份日报各自都有"今日概览"——把它们串起来。这周的主旋律是什么？从周一到现在，思考的焦点如何演变？
+
+2. **追踪延续与断裂**：日报中反复出现的标签（如 #浙江培训 #交易 #灵感收集器）代表持续性的主题。哪些主题从头贯穿到尾？哪些在中间消失了？为什么？
+
+3. **识别本周的关键跃迁**：在7天的思考中，哪一天出现了认知上的质变？哪一个洞察是本周最核心的收获？
+
+4. **不逐日罗列**：不要"周一...周二...周三..."。要融会贯通，把7天当作一个整体来写。按主题组织，不是按时间组织。
+
+5. **深度优先**：每周分析应该比每日分析更深一层。如果日报是在追问"今天发生了什么"，周报应该回答"这一周意味着什么"。
+
+## 输出格式
+
+纯 Markdown，不要代码块包裹。
+
+结构参考：
+
+### 1. 本周概览
+一两句话点出这周的底色，并指出最核心的1-2条暗线（可能不是最显眼的，但是对用户最具启发价值的）。
+
+### 2. 深入分析
+按主题组织，融会贯通地写。可以包含但不限于：
+- 持续性主题的演变轨迹
+- 认知跃迁的关键时刻
+- 看似无关事件之间的深层关联
+- 本周形成的新规则、新认知、新能力
+- 与用户长期目标/身份认同的关系
+
+引用日报内容要自然嵌入行文，让用户知道你在引用哪一天的观察。
+
+### 3. 待办事项
+基于本周分析，提出需要延续到下周的具体行动。要写到"什么时机做什么做到什么程度"的颗粒度。
+
+---
+
+注意：即便7份日报中有些比较简短，也要从整体中挖掘深度。篇幅不设上限。"""
+
+
+def read_week_digests(week_start, week_end):
+    """Read all daily digest files from week_start to week_end.
+
+    Returns list of (date_str, digest_text, tags) tuples.
+    """
+    daily_root = get_output_dir("daily")
+    digests = []
+
+    current = week_start
+    while current <= week_end:
+        date_str = current.strftime("%Y-%m-%d")
+        daily_dir = os.path.join(daily_root, date_str)
+
+        if os.path.isdir(daily_dir):
+            # Find the latest digest file for this day
+            files = sorted([
+                f for f in os.listdir(daily_dir)
+                if f.endswith(".md") and "digest" in f and not f.endswith(".bak.md")
+            ], reverse=True)
+
+            if files:
+                filepath = os.path.join(daily_dir, files[0])
+                with open(filepath, "r", encoding="utf-8") as f:
+                    content = f.read()
+
+                # Extract AI analysis section
+                ai_start = content.find("## AI 分析")
+                annotation_start = content.find("## 我的批注", ai_start) if ai_start != -1 else -1
+
+                if ai_start != -1 and annotation_start != -1:
+                    ai_body = content[ai_start:annotation_start].strip()
+                elif ai_start != -1:
+                    ai_body = content[ai_start:].strip()
+                else:
+                    ai_body = content
+
+                # Extract tags from frontmatter
+                tags = []
+                if "tags:" in content[:500]:
+                    tag_line = content.split("tags:")[1].split("\n")[0]
+                    import re
+                    tags = re.findall(r"'([^']+)'", tag_line)
+
+                digests.append((date_str, ai_body, tags))
+                logger.info(
+                    "Read digest %s: %d chars, tags=%s",
+                    date_str, len(ai_body), ", ".join(tags[:5])
+                )
+            else:
+                logger.info("No digest file found for %s (skipped)", date_str)
+        else:
+            logger.info("No daily dir for %s (skipped)", date_str)
+
+        current += timedelta(days=1)
+
+    return digests
+
+
+def build_weekly_prompt(digests):
+    """Build the user prompt containing all 7 daily digest bodies."""
+
+    if not digests:
+        return None
+
+    # Extract week range
+    first_date = digests[0][0]
+    last_date = digests[-1][0]
+
+    prompt_parts = [
+        f"以下是我从 {first_date} 到 {last_date} 共7天的日报。",
+        f"共 {len(digests)} 份日报。",
+        "",
+        "请基于这些日报内容，写一篇周度分析报告。"
+    ]
+
+    # Collect all unique tags across the week
+    all_tags = set()
+    for _, _, tags in digests:
+        all_tags.update(tags)
+    if all_tags:
+        tag_str = "、".join(f"#{t}" for t in sorted(all_tags))
+        prompt_parts.append(f"\n本周出现的标签：{tag_str}")
+
+    prompt_parts.append("\n---\n")
+
+    for date_str, body, tags in digests:
+        # Show a weekday indicator
+        dt = datetime.strptime(date_str, "%Y-%m-%d")
+        weekday = ["周一", "周二", "周三", "周四", "周五", "周六", "周日"][dt.weekday()]
+        tag_hint = ""
+        if tags:
+            important_tags = [t for t in tags if t not in ("灵感收集器", "每日总结", "AI分析")]
+            if important_tags:
+                tag_hint = " | 标签：" + ", ".join(f"#{t}" for t in important_tags[:5])
+
+        prompt_parts.append(f"\n## {date_str}（{weekday}）{tag_hint}\n")
+        prompt_parts.append(body)
+        prompt_parts.append("\n")
+
+    prompt_parts.append("\n---\n")
+    prompt_parts.append("请基于以上所有日报内容，写一篇有深度的周度分析报告。")
+
+    return "\n".join(prompt_parts)
+
+
+def format_weekly_digest(week_start, week_end, ai_body, tags=None):
+    """Format weekly digest markdown with frontmatter, matching daily digest format."""
+    week_start_str = week_start.strftime("%Y-%m-%d")
+    week_end_str = week_end.strftime("%m/%d")
+    week_number = week_start.isocalendar()[1]
+    start_month = week_start.strftime("%m/%d")
+
+    char_count = len(ai_body.replace(" ", "").replace("\n", ""))
+    read_min = max(1, round(char_count / 300))
+
+    if tags is None:
+        tags = ["灵感收集器", "每周总结"]
+    tag_str = ", ".join(["'" + t + "'" for t in tags])
+
+    lines = []
+    lines.append("---")
+    lines.append(f"date: {week_start.strftime('%Y')}-W{week_number}")
+    lines.append("type: weekly-digest")
+    lines.append(f"tags: [{tag_str}]")
+    lines.append("---")
+    lines.append("")
+    lines.append(f"# 第{week_number}周 · 周度总结（{start_month} - {week_end_str}）")
+    lines.append("")
+    lines.append(f"> 本文共 **{char_count}** 字 · 预计阅读 **{read_min}** 分钟")
+    lines.append("")
+    lines.append("> 基于本周7份日报综合生成。")
+    lines.append("")
+    lines.append("## AI 分析（自动生成，请勿编辑）")
+    lines.append("")
+    lines.append(ai_body)
+    lines.append("")
+    lines.append("---")
+    lines.append("")
+    lines.append("## 我的批注")
+    lines.append("")
+    lines.append("> *在这里写下你的想法、质疑、补充*")
+    lines.append("")
+
+    return "\n".join(lines)
+
+
+def git_push_weekly(filepath):
+    """Commit and push the weekly digest to Gitea."""
+    try:
+        result = subprocess.run(
+            ["git", "add", filepath],
+            cwd=PROJECT_DIR,
+            capture_output=True, text=True, timeout=15
+        )
+        if result.returncode != 0:
+            logger.warning("git add failed: %s", result.stderr.strip())
+            return False
+
+        result = subprocess.run(
+            ["git", "status", "--porcelain", "ai-insights/"],
+            cwd=PROJECT_DIR,
+            capture_output=True, text=True, timeout=10
+        )
+        if not result.stdout.strip():
+            logger.info("No changes to commit")
+            return True
+
+        week_num = datetime.now(TZ_BEIJING).isocalendar()[1]
+        result = subprocess.run(
+            ["git", "commit", "-m", f"weekly digest W{week_num}"],
+            cwd=PROJECT_DIR,
+            capture_output=True, text=True, timeout=15
+        )
+        if result.returncode != 0 and "nothing to commit" not in result.stdout:
+            logger.warning("git commit failed: %s", result.stderr.strip())
+            return False
+
+        result = subprocess.run(
+            ["git", "push", "origin", "main"],
+            cwd=PROJECT_DIR,
+            capture_output=True, text=True, timeout=30
+        )
+        if result.returncode != 0:
+            logger.warning("git push failed: %s", result.stderr.strip())
+            return False
+
+        for line in result.stdout.split("\n"):
+            if "->" in line or "remote:" in line:
+                logger.info("Gitea push: %s", line.strip())
+        logger.info("Pushed weekly digest to Gitea")
+        return True
+
+    except subprocess.TimeoutExpired:
+        logger.error("git push timed out")
+        return False
+    except Exception as e:
+        logger.error("git push error: %s", e)
+        return False
+
+
+def run(llm_client, date=None):
+    """Run weekly digest synthesis.
+
+    Reads all daily digests from the past 7 days (Mon-Sun), synthesizes
+    a weekly report via DeepSeek API, and saves to ai-insights/weekly/.
+    """
+    date = date or datetime.now(TZ_BEIJING)
+
+    # Calculate week range (Monday to Sunday)
+    weekday = date.weekday()  # 0=Monday, 6=Sunday
+    week_start = date - timedelta(days=weekday)  # This Monday
+    week_end = week_start + timedelta(days=6)  # This Sunday
+
+    logger.info(
+        "Weekly digest started for W%d (%s - %s)",
+        week_start.isocalendar()[1],
+        week_start.strftime("%Y-%m-%d"),
+        week_end.strftime("%Y-%m-%d")
+    )
+
+    # Read all daily digests
+    digests = read_week_digests(week_start, week_end)
+
+    if not digests:
+        logger.info("No daily digests found for this week, skipping")
+        return None, 0
+
+    logger.info("Found %d daily digests to synthesize", len(digests))
+
+    # Build prompt
+    user_prompt = build_weekly_prompt(digests)
+    if user_prompt is None:
+        logger.error("Failed to build weekly prompt")
+        return None, 0
+
+    # Call DeepSeek API
+    raw_response = llm_client.ask(
+        system_prompt=WEEKLY_SYSTEM_PROMPT,
+        user_prompt=user_prompt,
+        temperature=0.5
+    )
+
+    if not raw_response:
+        logger.error("Empty response from DeepSeek API")
+        return None, 0
+
+    # Collect all unique tags from the week
+    all_tags = set()
+    for _, _, tags in digests:
+        all_tags.update(tags)
+    # Add default weekly tags
+    default_tags = ["灵感收集器", "每周总结"]
+    weekly_tags = default_tags + sorted(all_tags)
+
+    # Format output
+    content = format_weekly_digest(week_start, week_end, raw_response, weekly_tags)
+
+    # Save to weekly directory
+    output_dir = get_output_dir("weekly")
+    week_start_str = week_start.strftime("%Y-%m-%d")
+    filename = f"W{week_start_str}_digest.md"
+    filepath = os.path.join(output_dir, filename)
+
+    with open(filepath, "w", encoding="utf-8") as f:
+        f.write(content)
+
+    logger.info(
+        "Weekly digest written to %s | %d digests | %d chars analysis | %d tags",
+        filepath, len(digests), len(raw_response), len(weekly_tags)
+    )
+
+    # Auto-push to Gitea
+    git_push_weekly(filepath)
+
+    return filepath, len(digests)
+
+
+def main():
+    """CLI entry point."""
+    logging.basicConfig(
+        level=logging.INFO,
+        format="%(asctime)s [%(levelname)s] %(name)s: %(message)s"
+    )
+
+    try:
+        secrets = load_secrets()
+    except FileNotFoundError as e:
+        print(e)
+        sys.exit(1)
+
+    llm_client = DeepSeekClient(
+        api_key=secrets["deepseek_api_key"],
+        model=secrets.get("deepseek_model", "deepseek-chat")
+    )
+
+    filepath, count = run(llm_client)
+    if filepath:
+        print(f"Done: {filepath} ({count} digests synthesized)")
+    else:
+        print("No digests found, skipped")
+        sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/scripts/run_weekly_digest.sh b/scripts/run_weekly_digest.sh
new file mode 100755
index 0000000..137afbe
--- /dev/null
+++ b/scripts/run_weekly_digest.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+# Weekly digest cron wrapper
+# Run every Sunday at 08:00 UTC (16:00 Beijing)
+# Synthesizes 7 daily digests into a week-level analysis report
+#
+# Scheduled earlier than the daily digest (22:00) to ensure
+# the most recent daily digest has already been generated.
+
+set -e
+
+PROJECT_DIR="$HOME/inspiration-collector"
+LOG_FILE="$PROJECT_DIR/ai-insights/logs/weekly_digest.log"
+
+mkdir -p "$(dirname "$LOG_FILE")"
+
+echo "[$(date '+%Y-%m-%d %H:%M:%S')] Starting weekly digest synthesis..." >> "$LOG_FILE"
+
+cd "$PROJECT_DIR"
+/usr/bin/python3 analyzers/weekly_digest.py >> "$LOG_FILE" 2>&1
+
+# Git push handled inside weekly_digest.py (git_push_weekly)
+# Duplicate push here as safety net in case the script's push failed
+cd "$PROJECT_DIR"
+if [[ -n $(git status --porcelain ai-insights/) ]]; then
+    git add ai-insights/
+    git commit -m "weekly digest W$(date '+%V') - safety push"
+    git push origin main 2>&1 | tail -3 >> "$LOG_FILE"
+    echo "Safety push done" >> "$LOG_FILE"
+fi
+
+echo "[$(date '+%Y-%m-%d %H:%M:%S')] Weekly digest done." >> "$LOG_FILE"