diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 21d386d..67c205a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,3 +37,26 @@ jobs:
 
       - name: ChatGPT instructions build (must stay under the 8000-char Action limit)
         run: uv run python chatgpt/build_instructions.py
+
+  doc-sync:
+    # Fail the build when a dataset documented in FinMind-Doc is missing from
+    # knowledge/datasets.md (the catalog silently drifting behind the docs is
+    # what let several datasets go unlisted for months). Only needs stdlib, so
+    # no uv/deps — just checkout both public repos and diff.
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout FinMind-MCP
+        uses: actions/checkout@v4
+
+      - name: Checkout FinMind-Doc (public)
+        uses: actions/checkout@v4
+        with:
+          repository: FinMind/FinMind-Doc
+          path: FinMind-Doc
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Catalog vs FinMind-Doc sync check
+        run: python scripts/check_doc_sync.py --doc ./FinMind-Doc
diff --git a/knowledge/datasets.md b/knowledge/datasets.md
index 3441718..10cbfe0 100644
--- a/knowledge/datasets.md
+++ b/knowledge/datasets.md
@@ -37,7 +37,7 @@ FinMind 會員方案由低到高為 **Free → Backer → Sponsor → Sponsor Pr
 - **Required:** `dataset=TaiwanStockInfoWithWarrantSummary`, `data_id`, `start_date`
 - **Optional:** `end_date`
 - **Key columns:** stock_id, date, close, target_stock_id, target_close, type, exercise_ratio, fulfillment_price
-- **描述:** 台股權證標的對照表（含履約價、行使比例）
+- **描述:** 台股權證標的對照表（含履約價、行使比例）；涵蓋上市 (TWSE) 與上櫃 (TPEX) 權證，可用母股代碼 `target_stock_id` 反查其對應權證（含已到期、代碼重用的歷史權證），上櫃對照歷史回溯至 2011-01-03
 
 ### TaiwanStockTradingDate
 - **Endpoint:** `/api/v4/data`
@@ -203,6 +203,14 @@ FinMind 會員方案由低到高為 **Free → Backer → Sponsor → Sponsor Pr
 - **Key columns:** date, stock_id, buy, name, sell
 - **描述:** 個股三大法人買賣超
 
+### TaiwanStockInstitutionalInvestorsBuySellWide
+- **Endpoint:** `/api/v4/data`
+- **Tier:** Free(w/ data_id)
+- **Required:** `dataset=TaiwanStockInstitutionalInvestorsBuySellWide`, `data_id` (股票代號), `start_date`
+- **Optional:** `end_date`
+- **Key columns:** date, stock_id, Foreign_Investor_buy, Foreign_Investor_sell, Foreign_Dealer_Self_buy, Foreign_Dealer_Self_sell, Investment_Trust_buy, Investment_Trust_sell, Dealer_buy, Dealer_sell, Dealer_self_buy, Dealer_self_sell, Dealer_Hedging_buy, Dealer_Hedging_sell
+- **描述:** 個股三大法人買賣（寬表）；與 TaiwanStockInstitutionalInvestorsBuySell 同資料，改為每交易日一列、各法人別買賣攤平成獨立欄位（免自行轉置），欄位涵蓋所有歷史分類、尚未存在的年代為 0
+
 ### TaiwanStockTotalInstitutionalInvestors
 - **Endpoint:** `/api/v4/data`
 - **Tier:** Free
@@ -276,10 +284,10 @@ FinMind 會員方案由低到高為 **Free → Backer → Sponsor → Sponsor Pr
 - **Key columns:** securities_trader, price, buy, sell, securities_trader_id, stock_id, date
 - **描述:** 權證分點進出（單日）
 
-### TaiwanstockGovernmentBankBuySell
+### TaiwanStockGovernmentBankBuySell
 - **Endpoint:** `/api/v4/data`
 - **Tier:** Sponsor
-- **Required:** `dataset=TaiwanstockGovernmentBankBuySell`, `data_id` (股票代號), `start_date`
+- **Required:** `dataset=TaiwanStockGovernmentBankBuySell`, `data_id` (股票代號), `start_date`
 - **Optional:** `end_date`
 - **Key columns:** date, stock_id, buy_amount, sell_amount, buy, sell, bank_name
 - **描述:** 八大行庫買賣
@@ -308,6 +316,38 @@ FinMind 會員方案由低到高為 **Free → Backer → Sponsor → Sponsor Pr
 - **Key columns:** date, stock_id, stock_name, disposition_cnt, condition, measure, period_start, period_end
 - **描述:** 處置有價證券（含處置原因與期間）
 
+### TaiwanStockBlockTrade
+- **Endpoint:** `/api/v4/data`
+- **Tier:** Sponsor
+- **Required:** `dataset=TaiwanStockBlockTrade`, `data_id` (股票代號), `start_date`
+- **Optional:** `end_date`
+- **Key columns:** date, stock_id, trade_type, price, volume, trading_money
+- **描述:** 鉅額交易日成交資訊（逐筆，含交易別、成交價量金額）；資料區間 2005-04-04 ~ now
+
+### TaiwanStockBlockTradingDailyReport
+- **Endpoint:** `/api/v4/data`
+- **Tier:** Sponsor
+- **Required:** `dataset=TaiwanStockBlockTradingDailyReport`, `start_date`
+- **Optional:** `data_id` (股票代號), `end_date`
+- **Key columns:** date, stock_id, securities_trader, securities_trader_id, price, buy, sell, trade_type
+- **描述:** 鉅額交易買賣日報表（含券商別）；資料區間 2026-04-28 ~ now
+
+### TaiwanStockDayTradingBorrowingFeeRate
+- **Endpoint:** `/api/v4/data`
+- **Tier:** Backer
+- **Required:** `dataset=TaiwanStockDayTradingBorrowingFeeRate`, `start_date`
+- **Optional:** `data_id` (股票代號), `end_date`
+- **Key columns:** date, stock_id, stock_name, InvestorBorrowedShares, InvestorBorrowingFeeRate
+- **描述:** 現股當日沖銷券差借券費率（借券股數、借券費率）；資料區間 2015-06-01 ~ now
+
+### TaiwanStockLoanCollateralBalance
+- **Endpoint:** `/api/v4/data`
+- **Tier:** Sponsor
+- **Required:** `dataset=TaiwanStockLoanCollateralBalance`, `data_id` (股票代號), `start_date`
+- **Optional:** `end_date`
+- **Key columns:** date, stock_id, market, MarginCurrentDayBalance, SecuritiesFirmLoanCurrentDayBalance, UnrestrictedLoanCurrentDayBalance（融資/證券商借貸/不限用途借貸各前日餘額、買進、賣出、現償、更換、今日餘額、次日限額，共 37 欄）
+- **描述:** 借貸款項擔保品餘額表（集中市場 / 櫃買中心，融資與證券商借貸款項各項餘額）；資料區間 2006-10-02 ~ now
+
 ## 台股 - 基本面
 
 ### TaiwanStockFinancialStatements
@@ -538,6 +578,22 @@ FinMind 會員方案由低到高為 **Free → Backer → Sponsor → Sponsor Pr
 - **Key columns:** date, contract_month, option_id, settlement_price
 - **描述:** 選擇權最後結算價
 
+### TaiwanFuturesSpreadTick
+- **Endpoint:** `/api/v4/data`
+- **Tier:** Sponsor
+- **Required:** `dataset=TaiwanFuturesSpreadTick`, `data_id` (期貨代號，如 `CAF`), `start_date` (single day)
+- **Optional:** （無）
+- **Key columns:** date, time, futures_id, contract_date, price, volume, near_price, far_price, spread_to_spread
+- **描述:** 期貨價差（近月/遠月）每筆成交；單次請求只提供一天資料，自 2026-04-27 起逐交易日累積（暫不含更早歷史回補）
+
+### TaiwanOptionVix
+- **Endpoint:** `/api/v4/data`
+- **Tier:** Backer
+- **Required:** `dataset=TaiwanOptionVix`, `start_date`
+- **Optional:** `end_date`
+- **Key columns:** date, time, vix
+- **描述:** 臺指選擇權波動率指數（VIX）；含日期、時間、波動率指數，資料區間 2026-03-01 ~ now
+
 ## 台股 - 即時資料
 
 > 此分類所有 dataset 都需要 **Sponsor** 方案。
@@ -610,6 +666,14 @@ FinMind 會員方案由低到高為 **Free → Backer → Sponsor → Sponsor Pr
 - **Key columns:** cb_id, ConversionPrice, IssuanceAmount, OutstandingAmount, date
 - **描述:** 可轉債每日總覽（轉換價、發行 / 流通在外金額）
 
+### TaiwanStockConvertibleBondMonthlyAnalysis
+- **Endpoint:** `/api/v4/data`
+- **Tier:** Backer
+- **Required:** `dataset=TaiwanStockConvertibleBondMonthlyAnalysis`, `start_date`
+- **Optional:** `data_id` (可轉債代號), `end_date`
+- **Key columns:** date, cb_id, cb_name, cb_name_en, custody_balance, last_month_balance, change, change_percent, issued_units, custody_accounts, pledged_units
+- **描述:** 可轉換公司債月份分析表（每月保管餘額、上月餘額、增減、發行單位數、保管戶數、設質單位數）；資料區間 2026-05-01 ~ now
+
 ## 台股 - 其他
 
 ### TaiwanStockNews
diff --git a/scripts/check_doc_sync.py b/scripts/check_doc_sync.py
new file mode 100644
index 0000000..5e58a34
--- /dev/null
+++ b/scripts/check_doc_sync.py
@@ -0,0 +1,126 @@
+#!/usr/bin/env python3
+"""CI gate: keep the MCP dataset catalog in sync with FinMind-Doc.
+
+The MCP knowledge pack (`knowledge/datasets.md`) is the single source of truth
+for "what datasets exist", shared by the `list_datasets` tool and the Custom GPT
+knowledge bundle. FinMind ships new datasets by documenting them in FinMind-Doc,
+and historically the MCP catalog silently drifted behind (datasets added to the
+docs months earlier were missing here). Unit tests can't catch that — it is a
+content gap, not a code bug.
+
+This script fails CI when a dataset is documented in FinMind-Doc (i.e. appears in
+an example `dataset="..."` call under docs/tutor/) but is absent from the MCP
+catalog and not in the explicit EXCLUDE allowlist below. When it fails, the fix
+is one of:
+  * add the dataset to knowledge/datasets.md (it belongs in the catalog), or
+  * add it to EXCLUDE with a reason (documented in FinMind-Doc but intentionally
+    outside the MCP generic-endpoint catalog, or a known doc typo).
+
+Usage:
+    python scripts/check_doc_sync.py --doc ./FinMind-Doc
+    FINMIND_DOC_DIR=./FinMind-Doc python scripts/check_doc_sync.py
+"""
+
+from __future__ import annotations
+
+import argparse
+import os
+import re
+import sys
+from pathlib import Path
+
+# Datasets that appear in FinMind-Doc example code but are intentionally NOT in
+# the MCP generic-endpoint catalog. Every entry needs a reason so this list
+# stays auditable rather than becoming a dumping ground that hides real drift.
+EXCLUDE: dict[str, str] = {
+    # Doc example typo: the documented dataset section is `TaiwanStockDividend`
+    # (股利政策表, already in the catalog); a couple of example snippets in
+    # Fundamental.md write `dataset="TaiwanStockStockDividend"` with a stray
+    # extra "Stock". The API enum has no such dataset.
+    "TaiwanStockStockDividend": "Doc example typo for TaiwanStockDividend",
+}
+
+# Matches `dataset="Name"`, `dataset='Name'`, and `"dataset": "Name"`.
+_DATASET_RE = re.compile(
+    r"""(?:"dataset"\s*:\s*|dataset\s*=\s*)["']([A-Za-z][A-Za-z0-9]+)["']"""
+)
+
+
+def documented_datasets(doc_dir: Path) -> set[str]:
+    """Dataset ids that appear in example calls under docs/tutor/."""
+    tutor = doc_dir / "docs" / "tutor"
+    if not tutor.is_dir():
+        sys.exit(
+            f"error: {tutor} not found — is --doc pointing at a FinMind-Doc "
+            f"checkout? (got {doc_dir})"
+        )
+    found: set[str] = set()
+    for md in tutor.rglob("*.md"):
+        text = md.read_text(encoding="utf-8", errors="replace")
+        found.update(_DATASET_RE.findall(text))
+    return found
+
+
+def catalog_datasets(catalog_md: Path) -> set[str]:
+    """Dataset names from the `### Name` headers in knowledge/datasets.md."""
+    names: set[str] = set()
+    for line in catalog_md.read_text(encoding="utf-8").splitlines():
+        if line.startswith("### "):
+            names.add(line[4:].strip())
+    return names
+
+
+def main() -> int:
+    repo_root = Path(__file__).resolve().parent.parent
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument(
+        "--doc",
+        default=os.environ.get("FINMIND_DOC_DIR", "./FinMind-Doc"),
+        help="Path to a FinMind-Doc checkout (default: ./FinMind-Doc or "
+        "$FINMIND_DOC_DIR)",
+    )
+    parser.add_argument(
+        "--catalog",
+        default=str(repo_root / "knowledge" / "datasets.md"),
+        help="Path to knowledge/datasets.md",
+    )
+    args = parser.parse_args()
+
+    doc = documented_datasets(Path(args.doc))
+    catalog = catalog_datasets(Path(args.catalog))
+
+    missing = sorted(doc - catalog - set(EXCLUDE))
+    # Excludes that no longer appear in the docs — clean them up so the list
+    # keeps reflecting reality (warning only, does not fail the build).
+    stale_excludes = sorted(set(EXCLUDE) - doc)
+
+    print(f"FinMind-Doc documented datasets : {len(doc)}")
+    print(f"MCP catalog datasets            : {len(catalog)}")
+    print(f"EXCLUDE allowlist               : {len(EXCLUDE)}")
+
+    if stale_excludes:
+        print()
+        print("warning: EXCLUDE entries no longer found in FinMind-Doc "
+              "(consider removing):")
+        for name in stale_excludes:
+            print(f"  - {name}")
+
+    if missing:
+        print()
+        print("FAIL: datasets documented in FinMind-Doc but missing from "
+              "knowledge/datasets.md:")
+        for name in missing:
+            print(f"  - {name}")
+        print()
+        print("Fix: add each to knowledge/datasets.md (with Endpoint/Tier/"
+              "Required/Optional/Key columns/描述), or add it to EXCLUDE in "
+              "scripts/check_doc_sync.py with a reason.")
+        return 1
+
+    print()
+    print("OK: MCP catalog is in sync with FinMind-Doc.")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())