{"id":127896,"date":"2026-07-01T18:09:35","date_gmt":"2026-07-01T11:09:35","guid":{"rendered":"https:\/\/tino.vn\/blog\/?p=127896"},"modified":"2026-07-01T18:14:49","modified_gmt":"2026-07-01T11:14:49","slug":"harness-engineering-ai-la-gi","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/harness-engineering-ai-la-gi\/","title":{"rendered":"Harness Engineering AI l\u00e0 g\u00ec? Gi\u1ea3i m\u00e3 c\u00f4ng ngh\u1ec7 gi\u00fap AI Agent \u0111\u00e1ng tin c\u1eady h\u01a1n"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>N\u1ebfu t\u1eebng d\u00f9ng m\u1ed9t AI Agent, c\u00f3 l\u1ebd b\u1ea1n \u0111\u00e3 g\u1eb7p c\u1ea3nh t\u01b0\u1ee3ng quen thu\u1ed9c: c\u00f9ng m\u1ed9t m\u00f4 h\u00ecnh AI nh\u01b0ng h\u00f4m nay l\u00e0m r\u1ea5t t\u1ed1t c\u00f2n h\u00f4m sau l\u1ea1i m\u1eafc sai l\u1ea7m ng\u1edb ng\u1ea9n, qu\u00ean m\u1ea5t y\u00eau c\u1ea7u ban \u0111\u1ea7u. V\u1ea5n \u0111\u1ec1 th\u1ef1c ra kh\u00f4ng n\u1eb1m \u1edf m\u1ee9c \u0111\u1ed9 th\u00f4ng minh c\u1ee7a m\u00f4 h\u00ecnh AI m\u00e0 n\u1eb1m \u1edf ph\u1ea7n m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh xung quanh m\u00f4 h\u00ecnh \u0111\u00f3 \u2013 th\u1ee9 m\u00e0 gi\u1edbi k\u1ef9 s\u01b0 AI g\u1ecdi l\u00e0 Harness Engineering. V\u1eady Harness Engineering AI l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n<h2 id=\"\u0110\u1ecbnh_ngh\u0129a_Harness_Engineering_AI&nbsp;\"><strong>\u0110\u1ecbnh ngh\u0129a Harness Engineering AI<\/strong>&nbsp;<\/h2>\n\n\n\n<h3 id=\"Harness_Engineering_AI_l\u00e0_g\u00ec?\"><strong>Harness Engineering AI l\u00e0 g\u00ec?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Harness Engineering l\u00e0 k\u1ef9 thu\u1eadt thi\u1ebft k\u1ebf to\u00e0n b\u1ed9 <strong>m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh<\/strong> bao quanh m\u1ed9t AI Agent, bao g\u1ed3m: ch\u1ec9 d\u1eabn c\u00f4ng vi\u1ec7c, d\u1eef li\u1ec7u ng\u1eef c\u1ea3nh, c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u00e9p s\u1eed d\u1ee5ng, quy\u1ec1n h\u1ea1n truy c\u1eadp, b\u1ed9 nh\u1edb, quy tr\u00ecnh ki\u1ec3m ch\u1ee9ng k\u1ebft qu\u1ea3, v\u00f2ng l\u1eb7p ph\u1ea3n h\u1ed3i v\u00e0 c\u01a1 ch\u1ebf gi\u00e1m s\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u00f4 h\u00ecnh AI l\u00e0 m\u1ed9t con ng\u1ef1a kho\u1ebb m\u1ea1nh nh\u01b0ng b\u1ea5t \u0111\u1ecbnh, th\u00ec <strong>Harness<\/strong> ch\u00ednh l\u00e0 b\u1ed9 d\u00e2y c\u01b0\u01a1ng, y\u00ean v\u00e0 b\u00e0n \u0111\u1ea1p \u2013 c\u00e1c thi\u1ebft b\u1ecb gi\u00fap \u0111i\u1ec1u h\u01b0\u1edbng s\u1ee9c m\u1ea1nh \u0111\u00f3 \u0111i \u0111\u00fang \u0111\u01b0\u1eddng, tr\u00e1nh ch\u1ea1y l\u1ea1c h\u01b0\u1edbng v\u00e0 duy tr\u00ec \u0111\u01b0\u1ee3c h\u00e0nh tr\u00ecnh d\u00e0i m\u00e0 kh\u00f4ng m\u1ea5t ki\u1ec3m so\u00e1t.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-1.png\" alt=\"Harness Engineering AI l\u00e0 g\u00ec?\" class=\"wp-image-127899\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-1.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-1-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Harness Engineering AI l\u00e0 g\u00ec?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Gi\u1edbi chuy\u00ean gia AI th\u01b0\u1eddng t\u00f3m g\u1ecdn kh\u00e1i ni\u1ec7m b\u1eb1ng m\u1ed9t c\u00f4ng th\u1ee9c r\u1ea5t ng\u1eafn g\u1ecdn:&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Agent = Model + Harness<\/strong> <strong>Engineering<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3, m\u00f4 h\u00ecnh cung c\u1ea5p n\u0103ng l\u1ef1c suy lu\u1eadn, c\u00f2n Harness Engineering bi\u1ebfn n\u0103ng l\u1ef1c \u0111\u00f3 th\u00e0nh m\u1ed9t quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i, ki\u1ec3m so\u00e1t v\u00e0 tri\u1ec3n khai trong th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t. N\u00f3i c\u00e1ch kh\u00e1c, m\u00f4 h\u00ecnh l\u00e0 ph\u1ea7n &#8220;suy ngh\u0129&#8221;, c\u00f2n Harness l\u00e0 ph\u1ea7n quy\u1ebft \u0111\u1ecbnh \u0111\u1ed1i t\u01b0\u1ee3ng m\u00e0 m\u00f4 h\u00ecnh s\u1ebd suy ngh\u0129 v\u1ec1, c\u00f9ng v\u1edbi c\u00e1ch h\u00e0nh \u0111\u1ed9ng \u0111\u01b0\u1ee3c th\u1ef1c thi ra sao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01a1n gi\u1ea3n:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Prompt engineering tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi: \u201cC\u1ea7n n\u00f3i g\u00ec v\u1edbi m\u00f4 h\u00ecnh?\u201d<\/li>\n\n\n\n<li>Context engineering tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi: \u201cC\u1ea7n \u0111\u01b0a th\u00f4ng tin n\u00e0o cho m\u00f4 h\u00ecnh?\u201d<\/li>\n\n\n\n<li>Harness engineering AI tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi: \u201cC\u1ea7n thi\u1ebft k\u1ebf m\u00f4i tr\u01b0\u1eddng n\u00e0o \u0111\u1ec3 AI Agent l\u00e0m vi\u1ec7c \u0111\u00fang, an to\u00e0n v\u00e0 c\u00f3 th\u1ec3 ki\u1ec3m ch\u1ee9ng?\u201d<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Xem th\u00eam: <a href=\"https:\/\/tino.vn\/blog\/ai-agent-la-gi\/\" data-type=\"post\" data-id=\"125704\" target=\"_blank\" rel=\"noreferrer noopener\">AI Agent l\u00e0 g\u00ec?<\/a><\/p>\n\n\n\n<h2 id=\"V\u00ec_sao_Harness_Engineering_AI_ng\u00e0y_c\u00e0ng_\u0111\u01b0\u1ee3c_nhi\u1ec1u_quan_t\u00e2m?\"><strong>V\u00ec sao Harness Engineering AI ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c nhi\u1ec1u quan t\u00e2m?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc \u0111\u00e2y, nhi\u1ec1u \u0111\u1ed9i ng\u0169 t\u1eadp trung v\u00e0o prompt: vi\u1ebft c\u00e2u l\u1ec7nh r\u00f5 h\u01a1n, th\u00eam v\u00ed d\u1ee5, y\u00eau c\u1ea7u m\u00f4 h\u00ecnh suy lu\u1eadn t\u1eebng b\u01b0\u1edbc. Khi RAG v\u00e0 context engineering ph\u00e1t tri\u1ec3n, tr\u1ecdng t\u00e2m chuy\u1ec3n sang d\u1eef li\u1ec7u: truy xu\u1ea5t t\u00e0i li\u1ec7u ch\u00ednh x\u00e1c h\u01a1n, t\u00f3m t\u1eaft l\u1ecbch s\u1eed h\u1ed9i tho\u1ea1i t\u1ed1t h\u01a1n, qu\u1ea3n l\u00fd c\u1eeda s\u1ed5 ng\u1eef c\u1ea3nh th\u00f4ng minh h\u01a1n.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-2.png\" alt=\"V\u00ec sao Harness Engineering AI ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c nhi\u1ec1u quan t\u00e2m?\" class=\"wp-image-127900\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-2.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-2-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>V\u00ec sao Harness Engineering AI ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c nhi\u1ec1u quan t\u00e2m?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ebfn giai \u0111o\u1ea1n AI Agent, th\u00e1ch th\u1ee9c l\u1ea1i m\u1edf r\u1ed9ng. M\u1ed9t agent kh\u00f4ng ch\u1ec9 tr\u1ea3 l\u1eddi, m\u00e0 c\u00f2n c\u00f3 th\u1ec3 g\u1ecdi API, \u0111\u1ecdc t\u1ec7p, ghi d\u1eef li\u1ec7u, ch\u1ea1y m\u00e3, duy\u1ec7t web, g\u1eedi email, t\u1ea1o pull request, m\u1edf ticket, ph\u1ed1i h\u1ee3p v\u1edbi agent kh\u00e1c v\u00e0 t\u1ef1 ki\u1ec3m tra k\u1ebft qu\u1ea3. OpenAI cho bi\u1ebft trong th\u1eed nghi\u1ec7m Codex n\u0103m 2026, nh\u00f3m k\u1ef9 s\u01b0 kh\u00f4ng tr\u1ef1c ti\u1ebfp vi\u1ebft m\u00e3, m\u00e0 t\u1eadp trung thi\u1ebft k\u1ebf m\u00f4i tr\u01b0\u1eddng, c\u00f4ng c\u1ee5, t\u00e0i li\u1ec7u, v\u00f2ng ph\u1ea3n h\u1ed3i v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c gi\u00fap agent l\u00e0m vi\u1ec7c \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LangChain c\u0169ng ghi nh\u1eadn vi\u1ec7c ch\u1ec9 thay \u0111\u1ed5i Harness \u0111\u00e3 gi\u00fap coding agent c\u1ee7a h\u1ecd c\u1ea3i thi\u1ec7n m\u1ea1nh tr\u00ean Terminal Bench 2.0, trong \u0111\u00f3 tracing v\u00e0 self-verification \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y v\u1edbi c\u00f9ng m\u1ed9t m\u00f4 h\u00ecnh, Harness t\u1ed1t c\u00f3 th\u1ec3 t\u1ea1o ra kh\u00e1c bi\u1ec7t l\u1edbn v\u1ec1 hi\u1ec7u su\u1ea5t, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u1ea3 n\u0103ng ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5.<\/p>\n\n\n\n<h2 id=\"Harness_Engineering_AI_bao_g\u1ed3m_nh\u1eefng_th\u00e0nh_ph\u1ea7n_c\u1ed1t_l\u00f5i_n\u00e0o?\u00a0\"><strong>Harness Engineering AI<\/strong> <strong>bao g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i n\u00e0o?\u00a0<\/strong><\/h2>\n\n\n\n<h3 id=\"System_prompt_v\u00e0_instruction\"><strong>System prompt v\u00e0 instruction<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">System prompt l\u00e0 b\u1ed9 ch\u1ec9 d\u1eabn n\u1ec1n t\u1ea3ng: vai tr\u00f2 c\u1ee7a agent, ph\u1ea1m vi nhi\u1ec7m v\u1ee5, quy t\u1eafc h\u00e0nh x\u1eed, ti\u00eau chu\u1ea9n \u0111\u1ea7u ra v\u00e0 gi\u1edbi h\u1ea1n an to\u00e0n. Trong Harness Engineering AI, prompt kh\u00f4ng \u0111\u1ee9ng ri\u00eang l\u1ebb m\u00e0 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng l\u1edbn h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, m\u1ed9t coding agent c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u lu\u00f4n \u0111\u1ecdc t\u00e0i li\u1ec7u ki\u1ebfn tr\u00fac tr\u01b0\u1edbc khi s\u1eeda code, ch\u1ea1y test sau m\u1ed7i thay \u0111\u1ed5i v\u00e0 kh\u00f4ng t\u1ef1 \u00fd thay \u0111\u1ed5i c\u1ea5u tr\u00fac database khi ch\u01b0a c\u00f3 ph\u00ea duy\u1ec7t.<\/p>\n\n\n\n<h3 id=\"Tools_v\u00e0_API\"><strong>Tools v\u00e0 API<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tools gi\u00fap agent l\u00e0m vi\u1ec7c v\u1edbi th\u1ebf gi\u1edbi b\u00ean ngo\u00e0i. C\u00f4ng c\u1ee5 c\u00f3 th\u1ec3 l\u00e0 API CRM, Google Sheets, GitHub, terminal, tr\u00ecnh duy\u1ec7t, database, h\u1ec7 th\u1ed1ng ticket, email ho\u1eb7c MCP server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Agent ch\u1ec9 hi\u1ec7u qu\u1ea3 khi c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t, c\u00f3 m\u00f4 t\u1ea3 r\u00f5 r\u00e0ng, ph\u1ea3n h\u1ed3i gi\u00e0u ng\u1eef c\u1ea3nh, ti\u1ebft ki\u1ec7m token v\u00e0 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u01b0\u1eddng xuy\u00ean. V\u00ec v\u1eady, Harness Engineering AI kh\u00f4ng ch\u1ec9 \u201cg\u1eafn th\u1eadt nhi\u1ec1u tool\u201d, m\u00e0 ph\u1ea3i ch\u1ecdn \u0111\u00fang tool, \u0111\u1eb7t t\u00ean d\u1ec5 hi\u1ec3u, \u0111\u1ecbnh ngh\u0129a input\/output chu\u1ea9n v\u00e0 ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-3.png\" alt=\"Harness Engineering AI bao g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i n\u00e0o?\u00a0\" class=\"wp-image-127901\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-3.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-3-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Harness Engineering AI<\/strong> <strong>bao g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i n\u00e0o?\u00a0<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"Context,_memory_v\u00e0_RAG\"><strong>Context, memory v\u00e0 RAG<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Context l\u00e0 th\u00f4ng tin agent \u0111ang nh\u00ecn th\u1ea5y trong m\u1ed9t l\u01b0\u1ee3t x\u1eed l\u00fd, Memory l\u00e0 ph\u1ea7n ghi nh\u1edb ng\u1eafn h\u1ea1n ho\u1eb7c d\u00e0i h\u1ea1n, RAG l\u00e0 c\u01a1 ch\u1ebf truy xu\u1ea5t t\u00e0i li\u1ec7u li\u00ean quan t\u1eeb kho d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Agent hi\u1ec7u qu\u1ea3 th\u01b0\u1eddng c\u1ea7n kh\u1ea3 n\u0103ng kh\u00e1m ph\u00e1 ng\u1eef c\u1ea3nh theo t\u1eebng l\u1edbp, gi\u1eef l\u1ea1i th\u00f4ng tin c\u1ea7n thi\u1ebft trong b\u1ed9 nh\u1edb l\u00e0m vi\u1ec7c v\u00e0 d\u00f9ng ghi ch\u00fa ngo\u00e0i \u0111\u1ec3 duy tr\u00ec tri th\u1ee9c d\u00e0i h\u01a1n. Trong Harness Engineering AI, d\u1eef li\u1ec7u kh\u00f4ng n\u00ean b\u1ecb nh\u1ed3i to\u00e0n b\u1ed9 v\u00e0o prompt. C\u00e1ch t\u1ed1t h\u01a1n l\u00e0 t\u1ea1o b\u1ea3n \u0111\u1ed3 tri th\u1ee9c, chia t\u00e0i li\u1ec7u theo ch\u1ee7 \u0111\u1ec1, cho ph\u00e9p agent truy xu\u1ea5t \u0111\u00fang ph\u1ea7n c\u1ea7n thi\u1ebft v\u00e0 lo\u1ea1i b\u1ecf th\u00f4ng tin kh\u00f4ng li\u00ean quan.<\/p>\n\n\n\n<h3 id=\"Workspace_v\u00e0_sandbox\"><strong>Workspace v\u00e0 sandbox<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Workspace l\u00e0 n\u01a1i agent thao t\u00e1c v\u1edbi t\u1ec7p, m\u00e3 ngu\u1ed3n, d\u1eef li\u1ec7u t\u1ea1m, log v\u00e0 k\u1ebft qu\u1ea3 trung gian. Sandbox l\u00e0 m\u00f4i tr\u01b0\u1eddng c\u00f4 l\u1eadp \u0111\u1ec3 agent ch\u1ea1y th\u1eed m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u1ec7 th\u1ed1ng th\u1eadt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi coding agent, sandbox gi\u00fap ch\u1ea1y test, ki\u1ec3m tra build, m\u00f4 ph\u1ecfng l\u1ed7i v\u00e0 x\u00e1c minh b\u1ea3n s\u1eeda. V\u1edbi business agent, sandbox c\u00f3 th\u1ec3 l\u00e0 m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m tr\u01b0\u1edbc khi ghi d\u1eef li\u1ec7u v\u00e0o CRM ho\u1eb7c g\u1eedi email th\u1eadt.<\/p>\n\n\n\n<h3 id=\"Guardrails,_permission_v\u00e0_policy\"><strong>Guardrails, permission v\u00e0 policy<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Guardrails l\u00e0 h\u00e0ng r\u00e0o an to\u00e0n, Permission l\u00e0 quy\u1ec1n \u0111\u01b0\u1ee3c ph\u00e9p th\u1ef1c hi\u1ec7n, c\u00f2n Policy l\u00e0 b\u1ed9 quy t\u1eafc v\u1eadn h\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Agent \u0111\u01b0\u1ee3c \u0111\u1ecdc d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea3i to\u00e0n b\u1ed9 danh s\u00e1ch ra ngo\u00e0i.<\/li>\n\n\n\n<li>Agent \u0111\u01b0\u1ee3c so\u1ea1n email nh\u01b0ng c\u1ea7n ng\u01b0\u1eddi duy\u1ec7t tr\u01b0\u1edbc khi g\u1eedi.<\/li>\n\n\n\n<li>Agent \u0111\u01b0\u1ee3c t\u1ea1o pull request nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ef1 merge v\u00e0o nh\u00e1nh production.<\/li>\n\n\n\n<li>Agent \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch h\u00f3a \u0111\u01a1n nh\u01b0ng ph\u1ea3i \u1ea9n th\u00f4ng tin nh\u1ea1y c\u1ea3m trong log.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">OpenAI nh\u1ea5n m\u1ea1nh guardrails l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 agent v\u1eadn h\u00e0nh an to\u00e0n, c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<h3 id=\"Observability,_tracing_v\u00e0_evaluation\"><strong>Observability, tracing v\u00e0 evaluation<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Observability gi\u00fap \u0111\u1ed9i ng\u0169 bi\u1ebft agent \u0111\u00e3 l\u00e0m g\u00ec, d\u00f9ng c\u00f4ng c\u1ee5 n\u00e0o, m\u1ea5t bao l\u00e2u, t\u1ed1n bao nhi\u00eau token, g\u1eb7p l\u1ed7i g\u00ec v\u00e0 v\u00ec sao \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh cu\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tracing ghi l\u1ea1i t\u1eebng b\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh agent ch\u1ea1y. Evaluation \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea7u ra theo b\u1ed9 ti\u00eau ch\u00ed \u0111\u1ecbnh s\u1eb5n. LangChain cho bi\u1ebft h\u1ecd d\u00f9ng traces \u0111\u1ec3 ph\u00e2n t\u00edch l\u1ed7i agent \u1edf quy m\u00f4 l\u1edbn v\u00e0 c\u1ea3i ti\u1ebfn harness qua t\u1eebng v\u00f2ng th\u1eed nghi\u1ec7m.<\/p>\n\n\n\n<h3 id=\"Feedback_loop_v\u00e0_self-verification\"><strong>Feedback loop v\u00e0 self-verification<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Feedback loop cho ph\u00e9p agent nh\u1eadn k\u1ebft qu\u1ea3 ki\u1ec3m tra v\u00e0 t\u1ef1 s\u1eeda tr\u01b0\u1edbc khi b\u00e1o c\u00e1o cho con ng\u01b0\u1eddi. Self-verification l\u00e0 c\u01a1 ch\u1ebf agent t\u1ef1 ki\u1ec3m tra \u0111\u1ea7u ra b\u1eb1ng test, ti\u00eau ch\u00ed, log, c\u00f4ng c\u1ee5 \u0111\u00e1nh gi\u00e1 ho\u1eb7c agent ph\u1ee5 tr\u00e1ch review.<\/p>\n\n\n\n<h2 id=\"Ph\u00e2n_bi\u1ec7t_Harness_Engineering,_Prompt_Engineering_v\u00e0_Context_Engineering&nbsp;\">Ph\u00e2n bi\u1ec7t Harness Engineering, Prompt Engineering v\u00e0 Context Engineering&nbsp;<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng ph\u00e2n bi\u1ec7t Harness Engineering, Prompt Engineering v\u00e0 Context Engineering:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Ti\u00eau ch\u00ed<\/th><th>Prompt Engineering<\/th><th>Context Engineering<\/th><th>Harness Engineering AI<\/th><\/tr><tr><td>Tr\u1ecdng t\u00e2m<\/td><td>C\u00e1ch vi\u1ebft y\u00eau c\u1ea7u<\/td><td>Th\u00f4ng tin \u0111\u01b0a v\u00e0o m\u00f4 h\u00ecnh<\/td><td>M\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh quanh agent<\/td><\/tr><tr><td>Ph\u1ea1m vi<\/td><td>M\u1ed9t l\u01b0\u1ee3t h\u1ecfi \u0111\u00e1p ho\u1eb7c m\u1ed9t t\u00e1c v\u1ee5 ng\u1eafn<\/td><td>Qu\u1ea3n l\u00fd d\u1eef li\u1ec7u, t\u00e0i li\u1ec7u, b\u1ed9 nh\u1edb<\/td><td>Tools, workflow, guardrails, evals, tracing, sandbox<\/td><\/tr><tr><td>M\u1ee5c ti\u00eau<\/td><td>C\u00e2u tr\u1ea3 l\u1eddi t\u1ed1t h\u01a1n<\/td><td>Ng\u1eef c\u1ea3nh ch\u00ednh x\u00e1c h\u01a1n<\/td><td>H\u00e0nh \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady h\u01a1n<\/td><\/tr><tr><td>V\u00ed d\u1ee5<\/td><td>Vi\u1ebft prompt c\u00f3 vai tr\u00f2, m\u1ee5c ti\u00eau, format<\/td><td>RAG, memory, t\u00f3m t\u1eaft h\u1ed9i tho\u1ea1i<\/td><td>Agent g\u1ecdi API, ch\u1ea1y test, t\u1ef1 s\u1eeda l\u1ed7i, xin duy\u1ec7t<\/td><\/tr><tr><td>Ph\u00f9 h\u1ee3p v\u1edbi<\/td><td>Chatbot, t\u00e1c v\u1ee5 \u0111\u01a1n gi\u1ea3n<\/td><td>H\u1ec7 th\u1ed1ng h\u1ecfi \u0111\u00e1p theo d\u1eef li\u1ec7u<\/td><td>AI Agent t\u1ef1 \u0111\u1ed9ng h\u00f3a nhi\u1ec1u b\u01b0\u1edbc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, 3 l\u1edbp k\u1ef9 thu\u1eadt tr\u00ean kh\u00f4ng c\u1ea1nh tranh m\u00e0 b\u1ed5 tr\u1ee3 cho nhau. Khi x\u00e2y d\u1ef1ng AI Agent nghi\u00eam t\u00fac, \u0111\u1ed9i ng\u0169 th\u01b0\u1eddng c\u1ea7n c\u1ea3 ba l\u1edbp: prompt r\u00f5, context \u0111\u00fang v\u00e0 Harness \u0111\u1ee7 an to\u00e0n.<\/p>\n\n\n\n<h2 id=\"C\u00e1c_n\u1ec1n_t\u1ea3ng_v\u00e0_c\u00f4ng_c\u1ee5_Harness_ph\u1ed5_bi\u1ebfn_hi\u1ec7n_nay\"><strong>C\u00e1c n\u1ec1n t\u1ea3ng v\u00e0 c\u00f4ng c\u1ee5 Harness ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/code.claude.com\/docs\/en\/agent-sdk\/overview\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/code.claude.com\/docs\/en\/agent-sdk\/overview\" rel=\"noreferrer noopener nofollow\">Claude Agent SDK<\/a>:<\/strong> \u0110\u01b0\u1ee3c tr\u00edch xu\u1ea5t tr\u1ef1c ti\u1ebfp t\u1eeb Claude Code v\u00e0 ph\u00e1t h\u00e0nh nh\u01b0 m\u1ed9t g\u00f3i \u0111\u1ed9c l\u1eadp, bao g\u1ed3m v\u00f2ng l\u1eb7p agent t\u00edch h\u1ee3p s\u1eb5n, c\u00f4ng c\u1ee5 th\u1ef1c thi d\u00f2ng l\u1ec7nh, \u0111\u1ecdc\/ghi file, t\u00ecm ki\u1ebfm web, t\u00edch h\u1ee3p giao th\u1ee9c MCP v\u00e0 c\u01a1 ch\u1ebf n\u00e9n ng\u1eef c\u1ea3nh t\u1ef1 \u0111\u1ed9ng. B\u1ed9 c\u00f4ng c\u1ee5 n\u00e0y ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u00e1c m\u00f4 h\u00ecnh Claude th\u00f4ng qua Anthropic API, Amazon Bedrock, Vertex AI v\u00e0 Azure.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/docs.langchain.com\/oss\/python\/deepagents\/overview\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/docs.langchain.com\/oss\/python\/deepagents\/overview\" rel=\"noreferrer noopener nofollow\">LangChain Deep Agents<\/a>:<\/strong> l\u00e0 Harness m\u00e3 ngu\u1ed3n m\u1edf c\u1ee7a LangChain, x\u00e2y d\u1ef1ng tr\u00ean n\u1ec1n LangGraph, \u0111\u01b0\u1ee3c trang b\u1ecb c\u00f4ng c\u1ee5 l\u1eadp k\u1ebf ho\u1ea1ch, h\u1ec7 th\u1ed1ng file \u1ea3o, kh\u1ea3 n\u0103ng sinh ra c\u00e1c sub-agent ph\u1ee5 tr\u00e1ch t\u1eebng ph\u1ea7n vi\u1ec7c ri\u00eang, c\u01a1 ch\u1ebf n\u00e9n ng\u1eef c\u1ea3nh t\u1ef1 \u0111\u1ed9ng v\u00e0 middleware h\u1ed7 tr\u1ee3 ph\u00ea duy\u1ec7t th\u1ee7 c\u00f4ng c\u00f9ng ph\u00e1t hi\u1ec7n d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m. N\u1ec1n t\u1ea3ng n\u00e0y kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t m\u00f4 h\u00ecnh c\u1ee5 th\u1ec3 v\u00e0 c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi c\u00e1c nh\u00e0 cung c\u1ea5p m\u00f4i tr\u01b0\u1eddng sandbox \u0111\u1ec3 th\u1ef1c thi code an to\u00e0n.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.inngest.com\/compare-to-temporal\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.inngest.com\/compare-to-temporal\" rel=\"noreferrer noopener nofollow\">Temporal v\u00e0 Inngest<\/a>:<\/strong> \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 Harness theo \u0111\u00fang ngh\u0129a m\u00e0 l\u00e0 c\u00e1c n\u1ec1n t\u1ea3ng th\u1ef1c thi b\u1ec1n v\u1eefng (durable execution), x\u1eed l\u00fd t\u00ecnh hu\u1ed1ng khi t\u00e1c v\u1ee5 c\u1ee7a agent c\u1ea7n ch\u1ea1y li\u00ean t\u1ee5c h\u00e0ng gi\u1edd ho\u1eb7c h\u00e0ng ng\u00e0y m\u00e0 kh\u00f4ng m\u1ea5t tr\u1ea1ng th\u00e1i. Khi g\u1eb7p l\u1ed7i, h\u1ec7 th\u1ed1ng n\u00e0y cho ph\u00e9p kh\u00f4i ph\u1ee5c l\u1ea1i t\u1eeb \u0111i\u1ec3m ki\u1ec3m tra g\u1ea7n nh\u1ea5t thay v\u00ec ph\u1ea3i b\u1eaft \u0111\u1ea7u l\u1ea1i to\u00e0n b\u1ed9 quy tr\u00ecnh t\u1eeb \u0111\u1ea7u.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-4.png\" alt=\"C\u00e1c n\u1ec1n t\u1ea3ng v\u00e0 c\u00f4ng c\u1ee5 Harness ph\u1ed5 bi\u1ebfn hi\u1ec7n nay\" class=\"wp-image-127902\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-4.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-4-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>C\u00e1c n\u1ec1n t\u1ea3ng v\u00e0 c\u00f4ng c\u1ee5 Harness ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 id=\"V\u00ed_d\u1ee5_th\u1ef1c_t\u1ebf_v\u1ec1_Harness_Engineering_AI\"><strong>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u1ec1 Harness Engineering AI<\/strong><\/h2>\n\n\n\n<h3 id=\"Coding_agent\"><strong>Coding agent<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t coding agent nh\u1eadn y\u00eau c\u1ea7u: \u201cS\u1eeda l\u1ed7i \u0111\u0103ng nh\u1eadp khi ng\u01b0\u1eddi d\u00f9ng b\u1eadt x\u00e1c th\u1ef1c hai l\u1edbp.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu ch\u1ec9 c\u00f3 prompt, agent c\u00f3 th\u1ec3 \u0111o\u00e1n file c\u1ea7n s\u1eeda v\u00e0 t\u1ea1o m\u00e3 m\u1edbi. N\u1ebfu c\u00f3 Harness Engineering AI, agent s\u1ebd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ecdc t\u00e0i li\u1ec7u ki\u1ebfn tr\u00fac x\u00e1c th\u1ef1c.<\/li>\n\n\n\n<li>T\u00ecm file li\u00ean quan b\u1eb1ng c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm m\u00e3 ngu\u1ed3n.<\/li>\n\n\n\n<li>Ch\u1ea1y test hi\u1ec7n t\u1ea1i.<\/li>\n\n\n\n<li>T\u1ea1o b\u1ea3n s\u1eeda trong sandbox.<\/li>\n\n\n\n<li>Ch\u1ea1y unit test, integration test v\u00e0 lint.<\/li>\n\n\n\n<li>Ghi log l\u1ed7i n\u1ebfu test fail.<\/li>\n\n\n\n<li>T\u1ef1 s\u1eeda theo ph\u1ea3n h\u1ed3i.<\/li>\n\n\n\n<li>M\u1edf pull request k\u00e8m m\u00f4 t\u1ea3 thay \u0111\u1ed5i.<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u ng\u01b0\u1eddi duy\u1ec7t khi thay \u0111\u1ed5i li\u00ean quan b\u1ea3o m\u1eadt.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 kh\u00e1c bi\u1ec7t gi\u1eefa \u201cAI vi\u1ebft code\u201d v\u00e0 \u201cAI tham gia quy tr\u00ecnh k\u1ef9 thu\u1eadt c\u00f3 ki\u1ec3m so\u00e1t\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Xem th\u00eam: <a href=\"https:\/\/tino.vn\/blog\/ai-agent-tot-nhat\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0110\u00e1nh gi\u00e1 chi ti\u1ebft top 10+ AI Agent t\u1ed1t nh\u1ea5t<\/a><\/p>\n\n\n\n<h3 id=\"AI_Agent_ch\u0103m_s\u00f3c_kh\u00e1ch_h\u00e0ng\"><strong>AI Agent ch\u0103m s\u00f3c kh\u00e1ch h\u00e0ng<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t customer support agent c\u00f3 th\u1ec3 tra c\u1ee9u \u0111\u01a1n h\u00e0ng, \u0111\u1ecdc l\u1ecbch s\u1eed h\u1ed9i tho\u1ea1i, \u0111\u1ec1 xu\u1ea5t ph\u01b0\u01a1ng \u00e1n ho\u00e0n ti\u1ec1n v\u00e0 so\u1ea1n ph\u1ea3n h\u1ed3i. Harness gi\u00fap agent ch\u1ec9 \u0111\u01b0\u1ee3c xem d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft, kh\u00f4ng t\u1ef1 ho\u00e0n ti\u1ec1n v\u01b0\u1ee3t h\u1ea1n m\u1ee9c, lu\u00f4n tr\u00edch d\u1eabn ch\u00ednh s\u00e1ch v\u00e0 chuy\u1ec3n cho nh\u00e2n s\u1ef1 ph\u1ee5 tr\u00e1ch khi t\u00ecnh hu\u1ed1ng nh\u1ea1y c\u1ea3m.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-5.png\" alt=\"V\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u1ec1 Harness Engineering AI\" class=\"wp-image-127903\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-5.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-5-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u1ec1 Harness Engineering AI<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"AI_Agent_ph\u00e2n_t\u00edch_d\u1eef_li\u1ec7u\"><strong>AI Agent ph\u00e2n t\u00edch d\u1eef li\u1ec7u<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t data agent c\u00f3 th\u1ec3 truy v\u1ea5n database, t\u1ea1o bi\u1ec3u \u0111\u1ed3 v\u00e0 vi\u1ebft b\u00e1o c\u00e1o. Harness gi\u00fap gi\u1edbi h\u1ea1n quy\u1ec1n truy v\u1ea5n, ghi l\u1ea1i c\u00e2u SQL, ki\u1ec3m tra d\u1eef li\u1ec7u b\u1ea5t th\u01b0\u1eddng, tr\u00e1nh l\u1ed9 th\u00f4ng tin c\u00e1 nh\u00e2n v\u00e0 y\u00eau c\u1ea7u x\u00e1c nh\u1eadn tr\u01b0\u1edbc khi xu\u1ea5t b\u00e1o c\u00e1o cho b\u00ean ngo\u00e0i.<\/p>\n\n\n\n<h3 id=\"Multi-agent_workflow\"><strong>Multi-agent workflow<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ec7 th\u1ed1ng multi-agent, m\u1ed9t agent qu\u1ea3n l\u00fd c\u00f3 th\u1ec3 ph\u00e2n c\u00f4ng cho agent nghi\u00ean c\u1ee9u, agent vi\u1ebft n\u1ed9i dung, agent ki\u1ec3m ch\u1ee9ng v\u00e0 agent xu\u1ea5t b\u1ea3n. Harness \u0111\u00f3ng vai tr\u00f2 \u0111i\u1ec1u ph\u1ed1i: agent n\u00e0o \u0111\u01b0\u1ee3c l\u00e0m b\u01b0\u1edbc n\u00e0o, d\u1eef li\u1ec7u n\u00e0o \u0111\u01b0\u1ee3c chia s\u1ebb, ti\u00eau ch\u00ed n\u00e0o c\u1ea7n \u0111\u1ea1t tr\u01b0\u1edbc khi chuy\u1ec3n b\u01b0\u1edbc, khi n\u00e0o c\u1ea7n ng\u01b0\u1eddi duy\u1ec7t.<\/p>\n\n\n\n<h2 id=\"L\u1ee3i_\u00edch_v\u00e0_th\u00e1ch_th\u1ee9c_c\u1ee7a_Harness_Engineering_AI\"><strong>L\u1ee3i \u00edch v\u00e0 th\u00e1ch th\u1ee9c c\u1ee7a Harness Engineering AI<\/strong><\/h2>\n\n\n\n<h3 id=\"L\u1ee3i_\u00edch\"><strong>L\u1ee3i \u00edch<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T\u0103ng \u0111\u1ed9 tin c\u1eady: <\/strong>Harness Engineering AI bi\u1ebfn h\u00e0nh vi c\u1ee7a agent th\u00e0nh quy tr\u00ecnh c\u00f3 ki\u1ec3m tra. Thay v\u00ec ch\u1ec9 tin v\u00e0o c\u00e2u tr\u1ea3 l\u1eddi cu\u1ed1i, \u0111\u1ed9i ng\u0169 c\u00f3 th\u1ec3 xem trace, test, log v\u00e0 b\u1eb1ng ch\u1ee9ng x\u00e1c minh.<\/li>\n\n\n\n<li><strong>Gi\u1ea3m l\u1ed7i l\u1eb7p l\u1ea1i: <\/strong>Khi agent sai, \u0111\u1ed9i ng\u0169 kh\u00f4ng ch\u1ec9 s\u1eeda k\u1ebft qu\u1ea3 cu\u1ed1i. C\u00e1ch l\u00e0m \u0111\u00fang l\u00e0 c\u1eadp nh\u1eadt harness: th\u00eam rule, c\u1ea3i thi\u1ec7n tool, b\u1ed5 sung test, t\u1ea1o guardrail ho\u1eb7c c\u1eadp nh\u1eadt t\u00e0i li\u1ec7u. L\u1ea7n sau, agent c\u00f3 c\u01a1 h\u1ed9i tr\u00e1nh l\u1ed7i t\u01b0\u01a1ng t\u1ef1.<\/li>\n\n\n\n<li><strong>T\u1ed1i \u01b0u chi ph\u00ed v\u00e0 token: <\/strong>M\u1ed9t Harness t\u1ed1t gi\u00fap agent l\u1ea5y \u0111\u00fang th\u00f4ng tin thay v\u00ec nh\u1ed3i qu\u00e1 nhi\u1ec1u d\u1eef li\u1ec7u v\u00e0o prompt. OpenAI t\u1eebng r\u00fat ra b\u00e0i h\u1ecdc \u201c\u0111\u01b0a b\u1ea3n \u0111\u1ed3, kh\u00f4ng \u0111\u01b0a s\u1ed5 tay 1.000 trang\u201d, t\u1ee9c l\u00e0 cung c\u1ea5p \u0111i\u1ec3m v\u00e0o \u1ed5n \u0111\u1ecbnh r\u1ed3i cho agent truy xu\u1ea5t s\u00e2u khi c\u1ea7n.<\/li>\n\n\n\n<li><strong>D\u1ec5 ki\u1ec3m to\u00e1n: <\/strong>Trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p, trace, log, quy\u1ec1n truy c\u1eadp v\u00e0 k\u1ebft qu\u1ea3 ki\u1ec3m ch\u1ee9ng r\u1ea5t quan tr\u1ecdng. Harness gi\u00fap bi\u1ebft agent \u0111\u00e3 x\u1eed l\u00fd d\u1eef li\u1ec7u ra sao, d\u00f9ng ngu\u1ed3n n\u00e0o v\u00e0 ai ph\u00ea duy\u1ec7t h\u00e0nh \u0111\u1ed9ng cu\u1ed1i.<\/li>\n\n\n\n<li><strong>D\u1ec5 m\u1edf r\u1ed9ng: <\/strong>Khi quy tr\u00ecnh \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i th\u00e0nh Harness, \u0111\u1ed9i ng\u0169 c\u00f3 th\u1ec3 nh\u00e2n r\u1ed9ng sang nhi\u1ec1u agent ho\u1eb7c nhi\u1ec1u nghi\u1ec7p v\u1ee5 kh\u00e1c nhau. V\u00ed d\u1ee5, c\u00f9ng m\u1ed9t khung ki\u1ec3m tra b\u1ea3o m\u1eadt c\u00f3 th\u1ec3 d\u00f9ng cho agent vi\u1ebft code, agent review code v\u00e0 agent v\u1eadn h\u00e0nh CI\/CD.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-6.png\" alt=\"L\u1ee3i \u00edch v\u00e0 th\u00e1ch th\u1ee9c c\u1ee7a Harness Engineering AI\" class=\"wp-image-127904\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-6.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/07\/harness-engineering-ai-la-gi-6-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>L\u1ee3i \u00edch v\u00e0 th\u00e1ch th\u1ee9c c\u1ee7a Harness Engineering AI<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"Th\u00e1ch_th\u1ee9c\"><strong>Th\u00e1ch th\u1ee9c<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tool overload: <\/strong>C\u00e0ng nhi\u1ec1u tool, agent c\u00e0ng d\u1ec5 ch\u1ecdn sai, g\u1ecdi sai tham s\u1ed1 ho\u1eb7c m\u1ea5t th\u1eddi gian suy lu\u1eadn. OpenAI khuy\u1ebfn ngh\u1ecb ch\u1ec9 t\u00e1ch th\u00e0nh multi-agent khi prompt qu\u00e1 ph\u1ee9c t\u1ea1p ho\u1eb7c tool tr\u1edf n\u00ean ch\u1ed3ng ch\u00e9o, c\u00f2n nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p n\u00ean t\u1ed1i \u01b0u single-agent tr\u01b0\u1edbc.<\/li>\n\n\n\n<li><strong>Context rot: <\/strong>L\u1ecbch s\u1eed h\u1ed9i tho\u1ea1i d\u00e0i, t\u00e0i li\u1ec7u c\u0169, rule l\u1ed7i th\u1eddi v\u00e0 d\u1eef li\u1ec7u kh\u00f4ng c\u00f2n ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 l\u00e0m agent suy lu\u1eadn sai. Harness c\u1ea7n c\u01a1 ch\u1ebf t\u00f3m t\u1eaft, l\u00e0m m\u1edbi, ki\u1ec3m tra ngu\u1ed3n v\u00e0 lo\u1ea1i b\u1ecf th\u00f4ng tin \u0111\u00e3 h\u1ebft gi\u00e1 tr\u1ecb.<\/li>\n\n\n\n<li><strong>Guardrails qu\u00e1 l\u1ecfng ho\u1eb7c qu\u00e1 ch\u1eb7t: <\/strong>Guardrails qu\u00e1 l\u1ecfng khi\u1ebfn agent d\u1ec5 g\u00e2y r\u1ee7i ro. Guardrails qu\u00e1 ch\u1eb7t khi\u1ebfn agent kh\u00f3 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5. \u0110i\u1ec3m c\u00e2n b\u1eb1ng ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ee9c \u0111\u1ed9 nh\u1ea1y c\u1ea3m c\u1ee7a t\u00e1c v\u1ee5, quy\u1ec1n d\u1eef li\u1ec7u v\u00e0 h\u1eadu qu\u1ea3 khi h\u00e0nh \u0111\u1ed9ng sai.<\/li>\n\n\n\n<li><strong>Thi\u1ebfu observability: <\/strong>N\u1ebfu kh\u00f4ng c\u00f3 trace v\u00e0 log, \u0111\u1ed9i ng\u0169 kh\u00f3 bi\u1ebft agent sai \u1edf prompt, tool, d\u1eef li\u1ec7u, memory, policy hay m\u00f4 h\u00ecnh. Khi \u0111\u00f3, vi\u1ec7c c\u1ea3i ti\u1ebfn d\u1ec5 bi\u1ebfn th\u00e0nh \u0111o\u00e1n m\u00f2.<\/li>\n\n\n\n<li><strong>Chi ph\u00ed v\u1eadn h\u00e0nh: <\/strong>Harness Engineering AI c\u1ea7n th\u1eddi gian thi\u1ebft k\u1ebf tool, vi\u1ebft test, t\u1ea1o t\u00e0i li\u1ec7u, chu\u1ea9n h\u00f3a d\u1eef li\u1ec7u, d\u1ef1ng sandbox v\u00e0 theo d\u00f5i ch\u1ea5t l\u01b0\u1ee3ng. Tuy nhi\u00ean, kho\u1ea3n \u0111\u1ea7u t\u01b0 n\u00e0y th\u01b0\u1eddng c\u1ea7n thi\u1ebft khi agent b\u01b0\u1edbc v\u00e0o quy tr\u00ecnh c\u00f3 gi\u00e1 tr\u1ecb cao ho\u1eb7c r\u1ee7i ro cao.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"Xu_h\u01b0\u1edbng_Harness_Engineering_AI_trong_th\u1eddi_gian_t\u1edbi\"><strong>Xu h\u01b0\u1edbng Harness Engineering AI trong th\u1eddi gian t\u1edbi<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u chuy\u00ean gia trong ng\u00e0nh xem Harness Engineering l\u00e0 giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n th\u1ee9 ba c\u1ee7a qu\u00e1 tr\u00ecnh tr\u01b0\u1edfng th\u00e0nh trong k\u1ef9 thu\u1eadt AI, ti\u1ebfp n\u1ed1i sau Prompt Engineering v\u00e0 Context Engineering, \u0111\u1ed3ng th\u1eddi l\u00e0 tr\u1ecdng t\u00e2m \u0111\u1ea7u t\u01b0 k\u1ef9 thu\u1eadt ch\u00ednh hi\u1ec7n nay.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 t\u1ed5 ch\u1ee9c \u0111\u00e3 x\u00e2y d\u1ef1ng h\u1eb3n khung \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 tr\u01b0\u1edfng th\u00e0nh c\u1ee7a \u0111\u1ed9i ng\u0169 theo nhi\u1ec1u chi\u1ec1u: ch\u1ea5t l\u01b0\u1ee3ng ng\u1eef c\u1ea3nh, c\u01a1 ch\u1ebf x\u00e1c minh, quy tr\u00ecnh ph\u1ed1i h\u1ee3p gi\u1eefa con ng\u01b0\u1eddi v\u00e0 agent.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ranh gi\u1edbi kh\u00e1i ni\u1ec7m gi\u1eefa Harness Engineering v\u00e0 Context Engineering v\u1eabn \u0111ang ti\u1ebfp t\u1ee5c thay \u0111\u1ed5i khi c\u1ed9ng \u0111\u1ed3ng k\u1ef9 thu\u1eadt li\u00ean t\u1ee5c b\u1ed5 sung th\u1ef1c ti\u1ec5n m\u1edbi, cho th\u1ea5y \u0111\u00e2y v\u1eabn l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c \u0111ang trong qu\u00e1 tr\u00ecnh \u0111\u1ecbnh h\u00ecnh ch\u1ee9 ch\u01b0a ho\u00e0n to\u00e0n \u1ed5n \u0111\u1ecbnh.&nbsp;<\/p>\n\n\n\n<h3 id=\"K\u1ebft_lu\u1eadn\"><strong>K\u1ebft lu\u1eadn<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong k\u1ef7 nguy\u00ean Agentic AI, gi\u00e1 tr\u1ecb c\u1ee7a doanh nghi\u1ec7p kh\u00f4ng ch\u1ec9 n\u1eb1m \u1edf vi\u1ec7c d\u00f9ng model n\u00e0o, m\u00e0 c\u00f2n n\u1eb1m \u1edf c\u00e1ch t\u1ed5 ch\u1ee9c m\u00f4i tr\u01b0\u1eddng \u0111\u1ec3 model bi\u1ebfn suy lu\u1eadn th\u00e0nh h\u00e0nh \u0111\u1ed9ng \u0111\u00fang, an to\u00e0n v\u00e0 c\u00f3 th\u1ec3 ki\u1ec3m ch\u1ee9ng. V\u00ec v\u1eady, Harness Engineering AI s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t k\u1ef9 n\u0103ng quan tr\u1ecdng cho b\u1ea5t k\u1ef3 \u0111\u1ed9i ng\u0169 n\u00e0o mu\u1ed1n \u0111\u01b0a AI Agent v\u00e0o s\u1ea3n xu\u1ea5t m\u1ed9t c\u00e1ch nghi\u00eam t\u00fac.<\/p>\n\n\n\n<h2 id=\"Nh\u1eefng_c\u00e2u_h\u1ecfi_th\u01b0\u1eddng_g\u1eb7p\"><strong>Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/strong><\/h2>\n\n\n\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Harness_Engineering_AI_c\u00f3_ph\u1ea3i_ch\u1ec9_d\u00e0nh_cho_l\u1eadp_tr\u00ecnh_vi\u00ean_kh\u00f4ng?\">Harness Engineering AI c\u00f3 ph\u1ea3i ch\u1ec9 d\u00e0nh cho l\u1eadp tr\u00ecnh vi\u00ean kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng. L\u1eadp tr\u00ecnh vi\u00ean c\u1ea7n k\u1ef9 n\u0103ng n\u00e0y \u0111\u1ec3 x\u00e2y d\u1ef1ng agent k\u1ef9 thu\u1eadt, nh\u01b0ng doanh nghi\u1ec7p, marketer, \u0111\u1ed9i CSKH, data team v\u00e0 \u0111\u1ed9i v\u1eadn h\u00e0nh c\u0169ng c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u0111\u1ec3 thi\u1ebft k\u1ebf AI Agent an to\u00e0n h\u01a1n.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"AI_Agent_c\u00f3_b\u1eaft_bu\u1ed9c_c\u1ea7n_Harness_Engineering_AI_kh\u00f4ng?\">AI Agent c\u00f3 b\u1eaft bu\u1ed9c c\u1ea7n Harness Engineering AI kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>N\u1ebfu agent ch\u1ec9 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi \u0111\u01a1n gi\u1ea3n, Harness c\u00f3 th\u1ec3 r\u1ea5t nh\u1eb9. N\u1ebfu agent c\u1ea7n g\u1ecdi API, \u0111\u1ecdc d\u1eef li\u1ec7u, ghi d\u1eef li\u1ec7u, ch\u1ea1y workflow ho\u1eb7c thao t\u00e1c h\u1ec7 th\u1ed1ng th\u1eadt, Harness l\u00e0 l\u1edbp r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m r\u1ee7i ro.<\/strong><\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Doanh_nghi\u1ec7p_nh\u1ecf_c\u00f3_c\u1ea7n_\u0111\u1ea7u_t\u01b0_v\u00e0o_Harness_Engineering_kh\u00f4ng?\u00a0\">Doanh nghi\u1ec7p nh\u1ecf c\u00f3 c\u1ea7n \u0111\u1ea7u t\u01b0 v\u00e0o Harness Engineering kh\u00f4ng?\u00a0<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 \u0111\u1ed9i ng\u0169 nh\u1ecf c\u0169ng h\u01b0\u1edfng l\u1ee3i r\u00f5 r\u1ec7t, \u0111\u1eb7c bi\u1ec7t khi d\u00f9ng agent cho c\u00e1c t\u00e1c v\u1ee5 l\u1eb7p l\u1ea1i th\u01b0\u1eddng xuy\u00ean. C\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u v\u1edbi quy m\u00f4 r\u1ea5t t\u1ed1i gi\u1ea3n, ch\u1ec9 m\u1edf r\u1ed9ng d\u1ea7n khi kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c giao cho agent t\u0103ng l\u00ean.\u00a0<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Harness_Engineering_c\u00f3_l\u00e0m_agent_AI_ho\u1ea1t_\u0111\u1ed9ng_ch\u1eadm_h\u01a1n_kh\u00f4ng?\">Harness Engineering c\u00f3 l\u00e0m agent AI ho\u1ea1t \u0111\u1ed9ng ch\u1eadm h\u01a1n kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, nhi\u1ec1u th\u1eed nghi\u1ec7m th\u1ef1c t\u1ebf cho th\u1ea5y m\u1ed9t Harness \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t c\u00f2n gi\u00fap gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng token c\u1ea7n x\u1eed l\u00fd v\u00e0 t\u0103ng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 ch\u00ednh x\u00e1c, nh\u1edd agent tr\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c b\u01b0\u1edbc th\u1eed sai kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Harness Engineering AI c\u00f3 ph\u1ea3i ch\u1ec9 d\u00e0nh cho l\u1eadp tr\u00ecnh vi\u00ean kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Kh\u00f4ng. 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V\u1ea5n \u0111\u1ec1 th\u1ef1c ra kh\u00f4ng n\u1eb1m \u1edf m\u1ee9c \u0111\u1ed9 th\u00f4ng minh c\u1ee7a m\u00f4 h\u00ecnh [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":127905,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7396],"tags":[7666],"class_list":["post-127896","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-cu-ai","tag-harness-engineering-ai"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/127896","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=127896"}],"version-history":[{"count":2,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/127896\/revisions"}],"predecessor-version":[{"id":127907,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/127896\/revisions\/127907"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/127905"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=127896"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/categories?post=127896"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=127896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}