{"id":694,"date":"2026-01-04T23:22:00","date_gmt":"2026-01-04T23:22:00","guid":{"rendered":"https:\/\/www.linkauthority.eu\/?p=694"},"modified":"2025-08-08T12:06:40","modified_gmt":"2025-08-08T12:06:40","slug":"prompt-ia","status":"publish","type":"post","link":"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/","title":{"rendered":"Prompt IA: an effective practical guide"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/#Points_a_retenir\" >Points to remember<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/#Quest-ce_quun_prompt_IA\" >What is an AI prompt?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/#Principes_fondamentaux\" >Fundamental Principles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/#Methodes_et_structures_de_prompts\" >Prompt Methods and Structures<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/#Trois_structures_utiles\" >Three Useful Structures<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/#Exemples_par_cas_dusage\" >Examples by Use Case<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/#Deboguer_un_prompt_faible\" >Debugging a Weak Prompt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.linkauthority.eu\/en\/prompt-ia\/#Outils_et_ressources\" >Tools and resources<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Points_a_retenir\"><\/span>Points to remember<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>A clear and precise prompt always yields better answers.<\/li>\n<li>Context, role, and constraints are essential.<\/li>\n<li>It is helpful to repeat this process several times to refine the result.<\/li>\n<li>Ready-to-use structures make the work easier.<\/li>\n<li>Acceptance testing helps avoid unpleasant surprises.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Quest-ce_quun_prompt_IA\"><\/span>What is an AI prompt?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>I'm going to tell you about a word that seems mysterious, but is actually very simple. A <i>prompt<\/i> is the instruction you give to an artificial intelligence. It\u2019s a bit like talking to a coworker, except that in this case, the machine doesn\u2019t make any guesses\u2014it follows your instructions to the letter. The more specific you are, the more likely you are to get what you want.<\/p>\n<p>For example, if you type \u00abtell me a story,\u00bb the result will be unpredictable. But if you specify \u00abwrite a short, funny story for a 7-year-old, featuring a rabbit and a red umbrella,\u00bb you\u2019ll see how much the quality improves.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Principes_fondamentaux\"><\/span>Fundamental Principles<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>J\u2019ai constat\u00e9 que les prompts efficaces partagent plusieurs caract\u00e9ristiques. D\u2019abord, ils ont un objectif clair et mesurable. Ensuite, ils d\u00e9finissent le r\u00f4le de l\u2019IA, le public vis\u00e9, le ton \u00e0 adopter, et les contraintes \u00e0 respecter. Enfin, ils pr\u00e9cisent la forme exacte de la sortie attendue.<\/p>\n<ul>\n<li>Formuler un objectif pr\u00e9cis et v\u00e9rifiable.<\/li>\n<li>Indiquer le r\u00f4le, le public, et le ton.<\/li>\n<li>Sp\u00e9cifier le format de sortie, comme une liste ou un tableau.<\/li>\n<li>Inclure un ou deux exemples de ce qui est attendu.<\/li>\n<li>Am\u00e9liorer le prompt par it\u00e9rations successives.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Methodes_et_structures_de_prompts\"><\/span>Prompt Methods and Structures<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Au fil du temps, j\u2019ai appris que certaines formules fonctionnent presque toujours. Par exemple : <strong>Agis en &lt;R\u00d4LE&gt; pour &lt;PUBLIC&gt;. Objectif : &lt;OBJECTIF&gt;. Contraintes : &lt;LISTE&gt;. Sortie : &lt;FORMAT&gt;.<\/strong> Cela donne un cadre clair \u00e0 l\u2019IA.<\/p>\n<p>Une autre approche consiste \u00e0 demander une r\u00e9solution \u00e9tape par \u00e9tape, suivie d\u2019une r\u00e9ponse finale dans un format sp\u00e9cifique. On peut aussi fournir des donn\u00e9es pr\u00e9cises et exiger un format strict, comme du JSON, pour \u00e9viter toute ambigu\u00eft\u00e9.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Trois_structures_utiles\"><\/span>Three Useful Structures<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>R\u00f4le + objectif + contraintes + format.<\/li>\n<li>R\u00e9solution par \u00e9tapes + balise de r\u00e9sultat.<\/li>\n<li>Sp\u00e9cifications + donn\u00e9es + t\u00e2che + format strict.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Exemples_par_cas_dusage\"><\/span>Examples by Use Case<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Voici quelques situations o\u00f9 un prompt bien pens\u00e9 change tout. Pour le SEO, vous pouvez demander une m\u00e9ta-description en pr\u00e9cisant le ton, le mot-cl\u00e9, et la longueur maximale. Pour le marketing, formuler trois objets d\u2019e-mail courts et sans mots d\u00e9clencheurs de spam donne de bien meilleurs taux d\u2019ouverture.<\/p>\n<ul>\n<li><strong>SEO:<\/strong> \u00ab R\u00e9dige une m\u00e9ta-description &lt;160 caract\u00e8res&gt; sur &lt;SUJET&gt; \u00bb.<\/li>\n<li><strong>Copywriting :<\/strong> \u00ab \u00c9cris 3 objets d\u2019e-mail A\/B test pour &lt;PUBLIC&gt; visant &lt;OBJECTIF&gt; \u00bb.<\/li>\n<li><strong>Analyse :<\/strong> \u00ab R\u00e9sume ce texte en 5 points actionnables \u00bb.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Deboguer_un_prompt_faible\"><\/span>Debugging a Weak Prompt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Je me suis souvent retrouv\u00e9 face \u00e0 des r\u00e9ponses vagues ou inutilisables. Dans ces cas-l\u00e0, il suffit parfois d\u2019ajouter des contraintes chiffr\u00e9es, d\u2019imposer un format strict, ou de demander \u00e0 l\u2019IA de reformuler la t\u00e2che pour v\u00e9rifier qu\u2019elle a bien compris. Vous pouvez aussi fournir des exemples, ou m\u00eame des contre-exemples, pour r\u00e9duire les risques de r\u00e9ponses hors sujet.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Outils_et_ressources\"><\/span>Tools and resources<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Pour gagner du temps, je garde toujours une fiche m\u00e9mo avec des structures de prompts, un tableur de prompts r\u00e9utilisables, et un gabarit pour les tests d\u2019acceptation. Ces outils me permettent de travailler plus vite, tout en maintenant un haut niveau de qualit\u00e9 dans mes demandes \u00e0 l\u2019IA.<\/p>","protected":false},"excerpt":{"rendered":"<p>Points \u00e0 retenir Un prompt clair et pr\u00e9cis donne toujours de meilleures r\u00e9ponses. Le contexte, le r\u00f4le et les contraintes sont essentiels. Il est utile d\u2019it\u00e9rer plusieurs fois pour affiner le r\u00e9sultat. Des structures pr\u00eates \u00e0 l\u2019emploi facilitent le travail. Les tests d\u2019acceptation \u00e9vitent les mauvaises surprises. Qu\u2019est-ce qu\u2019un prompt IA ? Je vais vous&#8230;<\/p>","protected":false},"author":1,"featured_media":696,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","saswp_custom_schema_field":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-694","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"modified_by":null,"_links":{"self":[{"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/posts\/694","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/comments?post=694"}],"version-history":[{"count":0,"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/posts\/694\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/media\/696"}],"wp:attachment":[{"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/media?parent=694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/categories?post=694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linkauthority.eu\/en\/wp-json\/wp\/v2\/tags?post=694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}