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		<h1>Cách dùng Cursor Rules File &#40;.mdc&#41;</h1>
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			<h2 class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong>Tóm tắt nội dung nhanh</strong></h2><ol class="&#91;li_&amp;&#93;:mb-0 &#91;li_&amp;&#93;:mt-1 &#91;li_&amp;&#93;:gap-1 &#91;&amp;:not(:last-child)_ul&#93;:pb-1 &#91;&amp;:not(:last-child)_ol&#93;:pb-1 list-decimal flex flex-col gap-1 pl-8 mb-3" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:decimal;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body whitespace-normal break-words pl-2" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="eb0d3cfb146878e4c14a889bd60e067d0"><p style="margin-left:0px;text-align:justify;">Mở Cursor và dự án cần thiết lập rule</p></li><li class="font-claude-response-body whitespace-normal break-words pl-2" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="ee61188f2091d840e0255e112776a5495"><p style="margin-left:0px;text-align:justify;">Mở hoặc tạo file <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.mdc</code> trong thư mục <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.cursor/rules/</code></p></li><li class="font-claude-response-body whitespace-normal break-words pl-2" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e6d1bda771c71e25c84cd9bb5cc8c9ec1"><p style="margin-left:0px;text-align:justify;">Kiểm tra YAML frontmatter hợp lệ (phần giữa hai dấu <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">---</code>)</p></li><li class="font-claude-response-body whitespace-normal break-words pl-2" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="eea40fafce8cbf7a766f9b3d5eecc9d99"><p style="margin-left:0px;text-align:justify;">Đặt <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">alwaysApply: true</code> nếu muốn rule luôn hoạt động</p></li><li class="font-claude-response-body whitespace-normal break-words pl-2" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="eaceb574b796d8d758a0e9fcf15cea254"><p style="margin-left:0px;text-align:justify;">Mở Chat (Cmd+L) hoặc Composer (Cmd+I) và làm việc bình thường</p></li><li class="font-claude-response-body whitespace-normal break-words pl-2" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e85731ec2a8a50e9bfcbff98a1e66ef5c"><p style="margin-left:0px;text-align:justify;">Cursor tự động áp dụng rule vào mọi phiên làm việc</p></li></ol><h2 class="text-text-100 mt-3 -mb-1 text-&#91;1.125rem&#93; font-bold" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong>Cursor Rules là gì và tại sao cần dùng?</strong></h2><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:disc;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e43d72f747b0d1ffa04d440b61c7c7c2b"><p style="margin-left:0px;text-align:justify;">Mỗi phiên Chat hoặc Composer trong Cursor bắt đầu hoàn toàn từ đầu - AI không nhớ bạn dùng TypeScript strict mode, không nhớ convention đặt tên trong project, không nhớ bạn đã dặn &quot;đừng bao giờ dùng <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">any</code> type&quot;. Kết quả là bạn phải nhắc đi nhắc lại cùng một context trong mọi phiên làm việc, như đang hướng dẫn một nhân viên mới bắt đầu mỗi buổi sáng.</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e9c90557e693d79f56794e9dbf8e4415a"><p style="margin-left:0px;text-align:justify;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Cursor Rules giải quyết vấn đề đó:</strong> bạn viết các quy tắc, coding convention và ngữ cảnh dự án một lần, lưu vào file <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.mdc</code>, và Cursor AI sẽ tự động đọc và tuân theo chúng trong mọi phiên làm việc sau đó - mà không cần bạn nhắc lại.</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e3f874bd16290c36dc72831726be65cb2"><p style="margin-left:0px;text-align:justify;">Khác với file <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.cursorrules</code> cũ (một file duy nhất áp dụng cho mọi thứ), hệ thống <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.cursor/rules/</code> mới cho phép tạo nhiều file rule với các phạm vi áp dụng khác nhau: một rule chỉ áp dụng cho file TypeScript, một rule khác chỉ cho file test, một rule khác chỉ khi AI chủ động yêu cầu. Đây là điểm mạnh cốt lõi so với cách tiếp cận một-file-cho-tất-cả.</p></li></ul><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><div class="nvck-iframe nvck-iframe-responsive" style="padding-bottom:56.25%;" data-iframe-width="640" data-iframe-height="360" data-iframe-type="auto" data-iframe-ratio="16:9"><div class="nvck-iframe-inner"><iframe class="nvck-iframe-element" sandbox="allow-scripts allow-same-origin allow-forms allow-presentation allow-popups" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen="true"></iframe></div></div></p><h2 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="2"><strong>Hướng dẫn từng bước: Tạo và sử dụng Cursor Rules File</strong></h2><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="3"><strong>Bước 1: Mở dự án trong Cursor</strong></h3><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="4,0,0">Khởi động ứng dụng Cursor trên máy tính, nhấn vào nút <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="4,0,0" data-index-in-node="64">Open project</strong> (hoặc File &gt; Open Folder) để bắt đầu mở dự án làm việc.</p><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-1.png" alt="sử dụng file quy tắc trong cursor" width="640" height="405" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-1.png" data-i="0" data-adbro-processed="true" data-was-processed="true" /></p><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="5"><strong>Bước 2: Chọn thư mục làm việc</strong></h3><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="6,0,0">Tìm đến thư mục chứa dự án của bạn (ví dụ trong ảnh là thư mục <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="6,0,0" data-index-in-node="73">Test-QTM</code>) và nhấn nút <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="6,0,0" data-index-in-node="95">Select Folder</strong> để Cursor tiến hành nạp cấu hình và lập chỉ mục codebase.</p><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-2.png" alt="cách tạo file quy tắc trong cursor" width="768" height="503" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-2.png" data-i="1" data-was-processed="true" /></p><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="7"><strong>Bước 3: Kích hoạt tạo thư mục cấu hình</strong></h3><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="8,0,0">Tại cột cây thư mục dự án bên tay phải (hoặc bên trái tùy giao diện), nhấn vào biểu tượng <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="8,0,0" data-index-in-node="100">New Folder...</strong> (Tạo thư mục mới) ngay tại thư mục gốc.</p><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-3.png" alt="hướng dẫn tạo tệp quy tắc trong cursor" width="640" height="389" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-3.png" data-i="2" data-was-processed="true" /></p><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="9"><strong>Bước 4: Đặt tên thư mục hệ thống </strong><code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="9" data-index-in-node="33"><strong>.cursor</strong></code></h3><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="10,0,0">Nhập tên thư mục là <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="10,0,0" data-index-in-node="30"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="10,0,0" data-index-in-node="30">.cursor</strong></code> và ấn Enter. Sau đó, nhấp chuột phải vào thư mục <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="10,0,0" data-index-in-node="87">.cursor</code> vừa tạo để tạo tiếp một thư mục con bên trong đặt tên là <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="10,0,0" data-index-in-node="152"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="10,0,0" data-index-in-node="152">rules</strong></code>.</p><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-4.png" alt="cách tạo file rule trong cursor" width="640" height="434" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-4.png" data-i="3" data-was-processed="true" /></p><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="11"><strong>Bước 5: Tạo tệp quy tắc </strong><code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="11" data-index-in-node="24"><strong>.mdc</strong></code><strong> mới</strong></h3><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="12,0,0">Nhấp chuột phải vào thư mục <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="12,0,0" data-index-in-node="38">rules</code> vừa tạo, chọn <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="12,0,0" data-index-in-node="58">New File...</strong> và nhập tên tệp tin kèm theo đuôi mở rộng bắt buộc là <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="12,0,0" data-index-in-node="124">.mdc</code> (Ví dụ: <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="12,0,0" data-index-in-node="137">base.mdc</code>).</p><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-5.png" alt="tạo file rule trong cursor" width="640" height="437" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-5.png" data-i="4" data-was-processed="true" /></p><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="13"><strong>Bước 6: Tùy chỉnh chế độ áp dụng quy tắc (Scope)</strong></h3><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="14,0,0">Khi tệp <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="14,0,0" data-index-in-node="18">.mdc</code> mở ra, Cursor sẽ hiển thị giao diện UI cấu hình trực quan. Bạn bấm vào menu thả xuống ở góc trên cùng bên trái để chọn chế độ mong muốn (ví dụ: Chọn <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="14,0,0" data-index-in-node="172">Always Apply</strong> để quy tắc luôn hoạt động trong mọi phiên chat, hoặc <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="14,0,0" data-index-in-node="238">Apply to Specific Files</strong> nếu chỉ muốn áp dụng riêng cho một số định dạng tệp cụ thể).</p><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-6.png" alt="file rule cursor" width="768" height="366" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-6.png" data-i="5" data-was-processed="true" /></p><h2 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="16"><strong>Mẹo nâng cao: Ra lệnh cho AI tự động sinh file </strong><code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="16" data-index-in-node="50"><strong>.mdc</strong></code></h2><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="17">Ngoài việc tạo thủ công, từ phiên bản v2026, bạn có thể tận dụng chế độ <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="17" data-index-in-node="72">Agent</strong> trong khung Composer để tự tạo quy tắc tự động:</p><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="18"><strong>Bước 7: Sử dụng lệnh </strong><code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="18" data-index-in-node="21"><strong>/create-rule</strong></code><strong> trong Composer</strong></h3><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-7.png" alt="hướng dẫn tạo file rule cursor" width="640" height="361" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-7.png" data-i="6" data-was-processed="true" /></p><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="19,0,0">Nhấn tổ hợp phím <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="19,0,0" data-index-in-node="27">Cmd + I</code> (hoặc <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="19,0,0" data-index-in-node="41">Ctrl + I</code> trên Windows) để mở cửa sổ <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="19,0,0" data-index-in-node="77">Composer</strong>. Chuyển chế độ sang <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="19,0,0" data-index-in-node="106">Agent</strong> ở góc dưới, gõ ký tự <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="19,0,0" data-index-in-node="133">/</code> và chọn lệnh <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="19,0,0" data-index-in-node="148"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="19,0,0" data-index-in-node="148">/create-rule</strong></code> từ menu hệ thống.</p><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="20"><strong>Bước 8: Viết Prompt mô tả quy chuẩn coding mong muốn</strong></h3><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="21,0,0">Nhập đoạn <a style="border-width:0px;color:rgb(0, 51, 153);font:inherit;margin:0px;padding:0px;text-decoration:none;" target="_blank" rel="noopener noreferrer" href="https://quantrimang.com/ai-prompt" title="Thư viện Prompt" data-type="internal">Prompt</a>&nbsp;mô tả các tiêu chuẩn bạn muốn ép <a style="border-width:0px;color:rgb(0, 51, 153);font:inherit;margin:0px;padding:0px;text-decoration:none;" target="_blank" rel="noopener noreferrer" href="https://quantrimang.com/ai" title="AI" data-type="internal">AI</a> tuân thủ bằng tiếng Việt hoặc tiếng Anh (ví dụ: Yêu cầu AI phản hồi bằng tiếng Việt, áp dụng các nguyên lý SOLID, bắt lỗi bằng try/catch...). Sau đó nhấn nút mũi tên <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="21,0,0" data-index-in-node="229">Gửi (Arrow icon)</strong> để Agent bắt đầu phân tích và tự động viết mã cấu hình.</p><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-8.png" alt="cach tao file rule cursor" width="768" height="459" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-8.png" data-i="7" data-was-processed="true" /></p><h3 style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:18px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="22"><strong>Bước 9: Kiểm tra cấu hình do AI tự tạo và Lưu lại</strong></h3><p style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" data-path-to-node="23,0,0">AI Agent sẽ tự động sinh ra tệp quy tắc mới nếu như tệp quy tắc bạn tạo chưa được hoàn chỉnh cho lắm (ví dụ: <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="23,0,0" data-index-in-node="62">express-standards.mdc</code>) nằm đúng trong thư mục <code style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;" data-path-to-node="23,0,0" data-index-in-node="108">.cursor/rules/</code> với đầy đủ phần YAML Frontmatter cấu hình chế độ kích hoạt và nội dung định dạng Markdown. Bạn chỉ cần kiểm tra lại các mục và nhấn <strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;" data-path-to-node="23,0,0" data-index-in-node="255">Keep File</strong> để áp dụng.</p><p style="text-align:justify;"><img class="lazy lightbox loaded" style="border-radius:3px;border:0px solid rgb(204, 204, 204);box-shadow:rgb(238, 238, 238) 0px 0px 1px;font:inherit;margin:0px auto;max-width:100%;padding:0px;" src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-9.png" alt="cách tạo tệp rule cursor" width="768" height="344" data-src="https://st.quantrimang.com/photos/image/2026/06/10/Tao-va-su-dung-File-Rules-Cursor-9.png" data-i="8" data-was-processed="true" /></p><h2 class="text-text-100 mt-3 -mb-1 text-&#91;1.125rem&#93; font-bold" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong>Ví dụ thực tế: Template Cursor Rules cho dự án phổ biến</strong></h2><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Rule cơ bản (base.mdc) - áp dụng mọi lúc:</strong></p><div class="relative group/copy bg-bg-000/50 border-0.5 border-border-400 rounded-lg focus:outline-none focus-visible:ring-2 focus-visible:ring-accent-100" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;margin:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" tabindex="0" role="group" aria-label="Code"><div class="overflow-x-auto" style="border-width:0px;font:inherit;margin:0px;padding:0px;"><div class="codebar" style="border-width:0px;font:inherit;margin:0px;padding:0px;position:relative;text-align:justify;">&nbsp;</div><pre class="language- language-none prettyprint" style="background-color:rgb(244, 251, 244);border-radius:5px;border:1px solid !important;display:block;font-family:Menlo, &#039;Bitstream Vera Sans Mono&#039;, &#039;DejaVu Sans Mono&#039;, Monaco, Consolas, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:14px;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 0px 16px;max-height:600px;max-width:100%;overflow:auto;padding:8px;" id="pre0"><code class="language-plaintext" style="border-radius:5px;border-width:0px;color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px;padding:0px;">---
   description: &quot;Quy tắc chung cho dự án Next.js TypeScript&quot;
  alwaysApply: true
  ---
  Bạn đang làm việc trong dự án Next.js 15 với TypeScript strict mode.
  - Dùng async/await, không dùng .then()
  - Tất cả component là Server Component theo mặc định
  - Ưu tiên named export thay vì default export
  - Luôn có error handling cho mọi async operation</code></pre></div></div><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Rule TypeScript (typescript.mdc) - tự động kích hoạt khi làm việc với .ts/.tsx:</strong></p><div class="relative group/copy bg-bg-000/50 border-0.5 border-border-400 rounded-lg focus:outline-none focus-visible:ring-2 focus-visible:ring-accent-100" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;margin:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" tabindex="0" role="group" aria-label="Code"><div class="overflow-x-auto" style="border-width:0px;font:inherit;margin:0px;padding:0px;"><div class="codebar" style="border-width:0px;font:inherit;margin:0px;padding:0px;position:relative;text-align:justify;">&nbsp;</div><pre class="language- language-none prettyprint" style="background-color:rgb(244, 251, 244);border-radius:5px;border:1px solid !important;display:block;font-family:Menlo, &#039;Bitstream Vera Sans Mono&#039;, &#039;DejaVu Sans Mono&#039;, Monaco, Consolas, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:14px;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 0px 16px;max-height:600px;max-width:100%;overflow:auto;padding:8px;" id="pre1"><code class="language-plaintext" style="border-radius:5px;border-width:0px;color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px;padding:0px;">---
   description: &quot;Quy chuẩn TypeScript nghiêm ngặt&quot;
  globs: &#91;&quot;**/*.ts&quot;, &quot;**/*.tsx&quot;&#93;
  alwaysApply: false
  ---
  - Không dùng kiểu `any` trong bất kỳ trường hợp nào
  - Tất cả function export phải có kiểu trả về rõ ràng
  - Dùng `interface` cho object shapes, `type` cho union types
  - Bật strict null checks</code></pre></div></div><h2 class="text-text-100 mt-3 -mb-1 text-&#91;1.125rem&#93; font-bold" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong>Lỗi thường gặp và cách xử lý</strong></h2><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Rule không hoạt động dù đã tạo file:</strong> Nguyên nhân phổ biến nhất là YAML frontmatter không hợp lệ - thiếu dấu <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">---</code> đóng, lỗi cú pháp YAML, hoặc có khoảng trắng/ký tự lạ trước dấu <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">---</code> đầu tiên. Thử đặt tạm <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">alwaysApply: true</code> để kiểm tra xem nội dung rule có hoạt động không - nếu có thì vấn đề nằm ở glob pattern hoặc điều kiện kích hoạt.</p><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Agent mode bỏ qua rule:</strong> File <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.cursorrules</code> cũ ở thư mục gốc bị Cursor Agent mode tự động bỏ qua từ 2026. Hãy chuyển sang định dạng <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.cursor/rules/*.mdc</code> để rule hoạt động với cả Chat, Composer và Agent.</p><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Rule Always Apply làm chậm phản hồi:</strong> Mỗi token trong rule <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">alwaysApply: true</code> được đưa vào mọi request. Nếu rule quá dài (trên 200 từ), bạn đang lãng phí context window. Giải pháp: cắt bớt nội dung, hoặc chuyển những phần không cần thiết trong mọi request sang chế độ Auto Attached hoặc Agent Requested.</p><h2 class="text-text-100 mt-3 -mb-1 text-&#91;1.125rem&#93; font-bold" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong>Cấu trúc file .mdc: YAML frontmatter và nội dung rule</strong></h2><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">Mỗi file <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.mdc</code> có hai phần rõ ràng:</p><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Phần 1 - YAML Frontmatter</strong> (kiểm soát hành vi):</p><div class="relative group/copy bg-bg-000/50 border-0.5 border-border-400 rounded-lg focus:outline-none focus-visible:ring-2 focus-visible:ring-accent-100" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;margin:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" tabindex="0" role="group" aria-label="Code"><div class="overflow-x-auto" style="border-width:0px;font:inherit;margin:0px;padding:0px;"><div class="codebar" style="border-width:0px;font:inherit;margin:0px;padding:0px;position:relative;text-align:justify;">&nbsp;</div><pre class="language- language-none prettyprint" style="background-color:rgb(244, 251, 244);border-radius:5px;border:1px solid !important;display:block;font-family:Menlo, &#039;Bitstream Vera Sans Mono&#039;, &#039;DejaVu Sans Mono&#039;, Monaco, Consolas, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:14px;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 0px 16px;max-height:600px;max-width:100%;overflow:auto;padding:8px;" id="pre2"><code class="language-plaintext" style="border-radius:5px;border-width:0px;color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px;padding:0px;">---
   description: &quot;Quy tắc TypeScript cho dự án này&quot;
  globs: &#91;&quot;**/*.ts&quot;, &quot;**/*.tsx&quot;&#93;
  alwaysApply: false
  ---</code></pre></div></div><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Phần 2 - Nội dung Markdown</strong> (hướng dẫn thực tế cho AI):</p><div class="codebar" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;margin:0px;orphans:2;padding:0px;position:relative;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">&nbsp;</div><pre class="language- language-none prettyprint" style="-webkit-text-stroke-width:0px;background-color:rgb(244, 251, 244);border-radius:5px;border:1px solid !important;color:rgba(0, 0, 0, 0.87);display:block;font-family:Menlo, &#039;Bitstream Vera Sans Mono&#039;, &#039;DejaVu Sans Mono&#039;, Monaco, Consolas, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:14px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;margin:0px 0px 16px;max-height:600px;max-width:100%;orphans:2;overflow:auto;padding:8px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;widows:2;word-spacing:0px;" id="pre3"><code class="language-plaintext" style="border-radius:5px;border-width:0px;color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px;padding:0px;"># Quy chuẩn TypeScript

- Luôn dùng strict mode (tsconfig strict: true)
- Ưu tiên interface thay vì type alias cho object shapes
- Không dùng kiểu `any` trong bất kỳ trường hợp nào
- Tất cả function phải có kiểu trả về rõ ràng</code></pre><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Các trường trong YAML frontmatter:</strong></p><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:disc;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="ef29d854e796acbcd9c60deef47d61ce1"><p style="margin-left:0px;text-align:justify;"><code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">description</code> - Mô tả ngắn về rule này làm gì. Bắt buộc nếu bạn muốn AI tự quyết định có dùng rule này không (chế độ Agent Requested).</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="ea4b40ec11b2531ea57c36d70bad146cc"><p style="margin-left:0px;text-align:justify;"><code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">globs</code> - Danh sách pattern file mà rule này áp dụng. Ví dụ: <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">&#91;&quot;**/*.ts&quot;&#93;</code> chỉ áp dụng khi làm việc với file TypeScript.</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e2c4d44786b0f7b490e88b333f86a56a9"><p style="margin-left:0px;text-align:justify;"><code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">alwaysApply</code> - Nếu là <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">true</code>, rule được đưa vào context của mọi phiên Chat và Composer, bất kể file nào đang mở. Nếu là <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">false</code>, rule chỉ kích hoạt theo điều kiện khác.</p></li></ul><h2 class="text-text-100 mt-3 -mb-1 text-&#91;1.125rem&#93; font-bold" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong>Tổng hợp 4 chế độ kích hoạt của Cursor Rules</strong></h2><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">Đây là phần quan trọng nhất và thường bị hiểu nhầm. Cách rule kích hoạt phụ thuộc hoàn toàn vào sự kết hợp của các trường frontmatter:</p><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:disc;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="ec84be3bb676e515fc04e04cc9ab99dda"><p style="margin-left:0px;text-align:justify;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">1. Always Apply (Luôn áp dụng)</strong> <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">alwaysApply: true</code> - Rule được đưa vào context của mọi yêu cầu AI, bất kể đang làm gì. Dùng cho các convention cốt lõi của dự án. Lưu ý: mỗi token trong rule loại này được tải vào mọi request, nên hãy giữ rule loại này dưới 200 từ để tránh lãng phí context window.</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="ef05f0b551bd53d969fad5eafa7fe9c41"><p style="margin-left:0px;text-align:justify;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">2. Auto Attached (Tự động đính kèm)</strong> <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">alwaysApply: false</code> + <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">globs: &#91;&quot;**/*.ts&quot;&#93;</code> - Rule tự động kích hoạt khi file đang mở khớp với pattern glob. Không cần làm gì thêm. Phù hợp cho các rule theo ngôn ngữ hoặc thư mục cụ thể.</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="eb05ebac46e875c98b8f57fcd97282d3f"><p style="margin-left:0px;text-align:justify;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">3. Agent Requested (AI chủ động yêu cầu)</strong> <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">alwaysApply: false</code> + <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">description: &quot;...&quot;</code> (không có globs) - AI đọc phần description và tự quyết định có dùng rule này không dựa trên ngữ cảnh hiện tại. Phù hợp cho các rule đặc biệt mà AI có thể biết khi nào cần dùng.</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="efea21b0ca94ce36d18be73bf277cf31e"><p style="margin-left:0px;text-align:justify;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">4. Manual (Thủ công)</strong> Không có <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">alwaysApply</code>, không có <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">globs</code>, không có <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">description</code> - Rule chỉ kích hoạt khi bạn chủ động gọi tên nó bằng cú pháp <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">@tên-rule</code> trong Chat hoặc Composer.</p></li></ul><h2 class="text-text-100 mt-3 -mb-1 text-&#91;1.125rem&#93; font-bold" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong>.cursorrules cũ vs .cursor/rules mới: Nên dùng cái nào?</strong></h2><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:disc;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e353ac488be237f1b05f20480af026feb"><p style="margin-left:0px;text-align:justify;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">File </strong><code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">.cursorrules</strong></code> (định dạng cũ): một file Markdown duy nhất ở thư mục gốc, không có frontmatter, áp dụng cho mọi thứ trong mọi phiên. Ưu điểm: đơn giản, dễ thiết lập. Nhược điểm: không có scope control, bị Agent mode bỏ qua hoàn toàn từ 2026, không thể tắt cho từng loại file.</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="ed6dd281333a116f9dd33fb38401d2b24"><p style="margin-left:0px;text-align:justify;"><code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">.cursor/rules/*.mdc</strong></code> (định dạng mới, khuyến nghị 2026): nhiều file, mỗi file có scope riêng, hoạt động với cả Chat, Composer và Agent mode. Phức tạp hơn một chút để thiết lập ban đầu nhưng linh hoạt và hiệu quả hơn nhiều về lâu dài.</p></li><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="edc06f9ab20ed7a3f85a71f441cd84962"><p style="margin-left:0px;text-align:justify;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Kết luận:</strong> Nếu bạn đang dùng agentic workflow hoặc kế hoạch dùng trong tương lai, hãy chuyển sang định dạng <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.mdc</code> ngay. Nếu chỉ dùng Chat cơ bản và không cần scope control, <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.cursorrules</code> cũ vẫn hoạt động nhưng không được đảm bảo hỗ trợ dài hạn.</p></li></ul><h2 class="text-text-100 mt-3 -mb-1 text-&#91;1.125rem&#93; font-bold" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:20px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;letter-spacing:normal;line-height:32px;margin:10px 0px;orphans:2;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong>Câu hỏi thường gặp (FAQ)</strong></h2><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Cursor Rules có ảnh hưởng đến tính năng autocomplete (Tab) không?</strong></p><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:disc;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e457c69f9816628042b2e4b0d1c56b998"><p style="margin-left:0px;text-align:justify;">Rules chỉ ảnh hưởng đến Chat và Composer. Cursor Tab autocomplete và Inline Edit (Cmd/Ctrl+K) không đọc rules.</p></li></ul><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Có thể commit file .cursor/rules/ lên Git để cả team dùng chung không?</strong></p><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:disc;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="ef12156e12634314b67df3317e44aab87"><p style="margin-left:0px;text-align:justify;">Hoàn toàn có, đây chính là mục đích thiết kế của hệ thống này - rules trong <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.cursor/rules/</code> được commit vào repo để đảm bảo toàn team dùng cùng một context AI. Nếu có rules cá nhân không muốn chia sẻ, thêm file đó vào <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.gitignore</code>.</p></li></ul><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Bao nhiêu rule file là phù hợp?</strong></p><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:disc;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="e0517f19c589ca170f847b7e498e7ea59"><p style="margin-left:0px;text-align:justify;">Theo kinh nghiệm thực tế, 5-8 file là tối ưu cho hầu hết dự án: một rule always-on cho quy tắc cơ bản, 3-4 rule auto-attached theo loại file, và 1-2 rule manual cho tác vụ đặc biệt. Nhiều hơn 10 rule thường là dấu hiệu có thể hợp nhất một số file lại.</p></li></ul><p class="font-claude-response-body break-words whitespace-normal" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:26px;margin:10px 0px;orphans:2;overflow-wrap:break-word;padding:0px;text-align:justify;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><strong style="border-width:0px;font-family:inherit;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;line-height:inherit;margin:0px;padding:0px;">Cursor có thể tự tạo file rule không?</strong></p><ul style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 255);border-width:0px;clear:both;color:rgba(0, 0, 0, 0.87);font-family:Arial, sans-serif;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:16px;font-stretch:inherit;font-style:normal;font-variant-alternates:inherit;font-variant-caps:normal;font-variant-east-asian:inherit;font-variant-emoji:inherit;font-variant-ligatures:normal;font-variant-numeric:inherit;font-variant-position:inherit;font-variation-settings:inherit;font-weight:400;letter-spacing:normal;line-height:inherit;list-style:disc;margin-bottom:0px;margin-right:0px;margin-top:0px;orphans:2;padding:0px;text-align:start;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><li class="font-claude-response-body break-words whitespace-normal" style="border-width:0px;font:inherit;margin:0px 0px 0px 30px;padding:0px;" data-list-item-id="eb4cd039eacb2a6bc7f42d8ff58b0f6d7"><p style="margin-left:0px;text-align:justify;">Bạn có thể yêu cầu Cursor Agent tạo rule file cho bạn bằng cách mô tả những gì bạn muốn. Cursor sẽ sinh ra file <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.mdc</code> với frontmatter và nội dung phù hợp trong thư mục <code class="bg-text-200/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-&#91;0.4rem&#93; px-1 py-px text-&#91;0.9rem&#93;" style="border-radius:5px;border:1px solid rgb(221, 221, 221);color:rgb(88, 37, 123);font-family:Consolas, Monaco, monospace;font-feature-settings:inherit;font-kerning:inherit;font-language-override:inherit;font-optical-sizing:inherit;font-size-adjust:inherit;font-size:inherit;font-stretch:inherit;font-style:inherit;font-variant:inherit;font-variation-settings:inherit;font-weight:inherit;line-height:inherit;margin:0px 2px;padding:2px 8px;">.cursor/rules/</code>.</p></li></ul>
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