{"id":912,"date":"2025-01-31T23:59:00","date_gmt":"2025-01-01T09:00:00","guid":{"rendered":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/a\/definition_agent\/"},"modified":"2025-06-05T23:26:56","modified_gmt":"2025-06-05T21:26:56","slug":"definition-agent","status":"publish","type":"post","link":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/a\/definition-agent\/","title":{"rendered":"Agent"},"content":{"rendered":"<p>En intelligence artificielle et en prompt engineering, un agent est un programme informatique autonome capable d&rsquo;interagir avec son environnement et de prendre des d\u00e9cisions pour atteindre des objectifs sp\u00e9cifiques. Qu&rsquo;est-ce qu&rsquo;un agent ? C&rsquo;est une entit\u00e9 virtuelle qui per\u00e7oit, raisonne et agit.<\/p>\n<h3>Comment fonctionne un Agent ?<\/h3>\n<p>Un agent fonctionne en observant son environnement gr\u00e2ce \u00e0 des capteurs, puis en traitant ces informations pour d\u00e9cider des actions \u00e0 entreprendre. Imaginez un robot aspirateur : ses capteurs d\u00e9tectent les obstacles et la poussi\u00e8re, et son programme interne lui permet de naviguer dans la pi\u00e8ce et d&rsquo;aspirer.  De la m\u00eame mani\u00e8re, un agent conversationnel analyse vos messages (les donn\u00e9es sensorielles) pour formuler une r\u00e9ponse appropri\u00e9e (l&rsquo;action).  La complexit\u00e9 d&rsquo;un agent d\u00e9pend de son objectif et de l&rsquo;environnement dans lequel il op\u00e8re. Un agent simple peut suivre des r\u00e8gles pr\u00e9programm\u00e9es, tandis qu&rsquo;un agent plus sophistiqu\u00e9 peut apprendre et s&rsquo;adapter \u00e0 de nouvelles situations.<\/p>\n<h3>Pourquoi Agent est-il important ?<\/h3>\n<p>Les agents sont essentiels car ils permettent d&rsquo;automatiser des t\u00e2ches, de prendre des d\u00e9cisions en temps r\u00e9el et d&rsquo;interagir avec des syst\u00e8mes complexes. En prompt engineering, la compr\u00e9hension du concept d&rsquo;agent est cruciale, car elle permet de concevoir des prompts plus efficaces pour des t\u00e2ches sp\u00e9cifiques. Par exemple, vous pouvez concevoir un prompt qui guide un agent conversationnel pour qu&rsquo;il agisse comme un traducteur, un r\u00e9dacteur ou m\u00eame un conseiller financier virtuel.  L&rsquo;agent utilise alors le prompt comme une instruction pour orienter ses actions et atteindre l&rsquo;objectif d\u00e9fini par l&rsquo;utilisateur.<\/p>\n<h3>Termes associ\u00e9s<\/h3>\n<ul id=\"TermesAssocies\">\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Prompt\">Prompt<\/a><\/li>\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Environnement\">Environnement<\/a><\/li>\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Action\">Action<\/a><\/li>\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Capteur\">Capteur<\/a><\/li>\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Intelligence+Artificielle\">Intelligence Artificielle<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>En intelligence artificielle et en prompt engineering, un agent est un programme informatique autonome capable d&rsquo;interagir avec son environnement et de prendre des d\u00e9cisions pour atteindre des objectifs sp\u00e9cifiques. Qu&rsquo;est-ce qu&rsquo;un agent ? C&rsquo;est une entit\u00e9 virtuelle qui per\u00e7oit, raisonne et agit. Comment fonctionne un Agent ? Un agent fonctionne en observant son environnement gr\u00e2ce [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[534,326,533,327,57,35],"class_list":["post-912","post","type-post","status-publish","format-standard","hentry","category-a","tag-action","tag-agent","tag-capteur","tag-environnement","tag-intelligence-artificielle","tag-prompt"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"","author_link":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"En intelligence artificielle et en prompt engineering, un agent est un programme informatique autonome capable d&rsquo;interagir avec son environnement et de prendre des d\u00e9cisions pour atteindre des objectifs sp\u00e9cifiques. Qu&rsquo;est-ce qu&rsquo;un agent ? C&rsquo;est une entit\u00e9 virtuelle qui per\u00e7oit, raisonne et agit. Comment fonctionne un Agent ? Un agent fonctionne en observant son environnement gr\u00e2ce\u2026","_links":{"self":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/912","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/comments?post=912"}],"version-history":[{"count":1,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/912\/revisions"}],"predecessor-version":[{"id":928,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/912\/revisions\/928"}],"wp:attachment":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/media?parent=912"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/categories?post=912"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/tags?post=912"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}