diff --git a/lang/fr.json b/lang/fr.json
index 5dfb183..5fb9cca 100644
--- a/lang/fr.json
+++ b/lang/fr.json
@@ -151,7 +151,16 @@
       "usedFortune": "Fortune utilisée (1d8+8)",
       "puiser": "Puiser dans ses ressources",
       "puiserDesc": "Ignore tous les malus — coche 1 case de Spleen",
-      "usedPuiser": "Ressources puisées — malus ignorés, +1 Spleen"
+      "usedPuiser": "Ressources puisées — malus ignorés, +1 Spleen",
+      "autoSuccess": "Réussite automatique"
+    },
+    "Modifier": {
+      "evident":    "Évident — Réussite automatique",
+      "malaise":    "Malaisé (0)",
+      "difficile":  "Difficile (−2)",
+      "tres":       "Très difficile (−4)",
+      "extreme":    "Extrêmement difficile (−6)",
+      "incroyable": "Incroyablement difficile (−8)"
     },
     "Moon": {
       "none": "Aucune phase",
diff --git a/module/config/system.mjs b/module/config/system.mjs
index 3cf93ab..17533e2 100644
--- a/module/config/system.mjs
+++ b/module/config/system.mjs
@@ -111,6 +111,16 @@ export const DIFFICULTY_CHOICES = {
   extreme: { id: "extreme", label: "CELESTOPOL.Difficulty.extreme", value: 13 },
 }
 
+/** Modificateurs contextuels (difficulté narrative) pour les jets. */
+export const CONTEXT_MODIFIER_CHOICES = [
+  { id: "evident",    label: "CELESTOPOL.Modifier.evident",    value: "auto" },
+  { id: "malaise",    label: "CELESTOPOL.Modifier.malaise",    value: 0 },
+  { id: "difficile",  label: "CELESTOPOL.Modifier.difficile",  value: -2 },
+  { id: "tres",       label: "CELESTOPOL.Modifier.tres",       value: -4 },
+  { id: "extreme",    label: "CELESTOPOL.Modifier.extreme",    value: -6 },
+  { id: "incroyable", label: "CELESTOPOL.Modifier.incroyable", value: -8 },
+]
+
 /** Phases de la lune (dé de lune d8). Index 1-8 = résultat du dé. */
 export const MOON_DIE_FACES = [
   null, // index 0 non utilisé
@@ -172,6 +182,7 @@ export const SYSTEM = {
   FACTIONS,
   WOUND_LEVELS,
   DIFFICULTY_CHOICES,
+  CONTEXT_MODIFIER_CHOICES,
   MOON_DIE_FACES,
   MOON_RESULT_TYPES,
   EQUIPMENT_TYPES,
diff --git a/module/documents/roll.mjs b/module/documents/roll.mjs
index 443815c..210b9c2 100644
--- a/module/documents/roll.mjs
+++ b/module/documents/roll.mjs
@@ -43,7 +43,12 @@ export class CelestopolRoll extends Roll {
       ? game.i18n.localize(SYSTEM.WOUND_LEVELS[woundLevelId]?.label ?? "")
       : null
 
-    const modifierChoices = [-4, -3, -2, -1, 0, 1, 2, 3, 4].map(v => ({
+    const modifierChoices = SYSTEM.CONTEXT_MODIFIER_CHOICES.map(c => ({
+      id:    c.id,
+      value: c.value,
+      label: game.i18n.localize(c.label),
+    }))
+    const aspectChoices = [-4, -3, -2, -1, 0, 1, 2, 3, 4].map(v => ({
       value: v,
       label: v > 0 ? `+${v}` : `${v}`,
     }))
@@ -60,6 +65,7 @@ export class CelestopolRoll extends Roll {
       destGaugeFull,
       defaultRollMoonDie: options.rollMoonDie ?? false,
       modifierChoices,
+      aspectChoices,
       fortuneValue,
     }
 
@@ -85,7 +91,9 @@ export class CelestopolRoll extends Roll {
         }
 
         function update() {
-          const modifier  = parseInt(wrap.querySelector('#modifier')?.value ?? 0) || 0
+          const rawMod    = wrap.querySelector('#modifier')?.value
+          const autoSucc  = rawMod === "auto"
+          const modifier  = autoSucc ? 0 : (parseInt(rawMod ?? 0) || 0)
           const aspectMod = parseInt(wrap.querySelector('#aspectModifier')?.value ?? 0) || 0
           const useDestin = wrap.querySelector('#useDestin')?.checked
           const useFort   = wrap.querySelector('#useFortune')?.checked
@@ -110,7 +118,9 @@ export class CelestopolRoll extends Roll {
           const totalMod  = skillValue + effWound + effMod + effAspect
 
           let formula
-          if (useFort) {
+          if (autoSucc) {
+            formula = game.i18n.localize("CELESTOPOL.Roll.autoSuccess")
+          } else if (useFort) {
             const fm = totalMod + 8
             formula = `1d8` + (fm > 0 ? ` + ${fm}` : fm < 0 ? ` − ${Math.abs(fm)}` : ``)
           } else {
@@ -151,7 +161,8 @@ export class CelestopolRoll extends Roll {
 
     const difficulty        = rollContext.difficulty ?? "normal"
     const diffConfig        = SYSTEM.DIFFICULTY_CHOICES[difficulty] ?? SYSTEM.DIFFICULTY_CHOICES.normal
-    const modifier          = parseInt(rollContext.modifier ?? 0) || 0
+    const autoSuccess       = rollContext.modifier === "auto"
+    const modifier          = autoSuccess ? 0 : (parseInt(rollContext.modifier ?? 0) || 0)
     const aspectMod         = parseInt(rollContext.aspectModifier ?? 0) || 0
     const useDestin         = destGaugeFull && (rollContext.useDestin === true || rollContext.useDestin === "true")
     const useFortune        = fortuneValue > 0 && (rollContext.useFortune === true || rollContext.useFortune === "true")
@@ -188,6 +199,7 @@ export class CelestopolRoll extends Roll {
       modifier:        effectiveModifier,
       aspectMod:       effectiveAspectMod,
       woundMalus:      effectiveWoundMalus,
+      autoSuccess,
       useDestin,
       useFortune,
       puiserRessources,
@@ -259,6 +271,11 @@ export class CelestopolRoll extends Roll {
    * - Marge < 0  → échec
    */
   computeResult() {
+    if (this.options.autoSuccess) {
+      this.options.resultType = "success"
+      this.options.margin     = null
+      return
+    }
     const threshold = SYSTEM.DIFFICULTY_CHOICES[this.options.difficulty]?.value ?? 0
     if (threshold === 0) {
       this.options.resultType = "unknown"
@@ -331,6 +348,7 @@ export class CelestopolRoll extends Roll {
       marginAbs:         margin !== null ? Math.abs(margin) : null,
       marginAbove:       margin !== null && margin >= 0,
       modifier:          this.options.modifier ?? 0,
+      autoSuccess:       this.options.autoSuccess ?? false,
       aspectMod:         this.options.aspectMod ?? 0,
       skillValue,
       useDestin:         this.options.useDestin ?? false,
diff --git a/templates/chat-message.hbs b/templates/chat-message.hbs
index 74bb56d..1d8c9ce 100644
--- a/templates/chat-message.hbs
+++ b/templates/chat-message.hbs
@@ -104,7 +104,10 @@
 
   {{!-- Bandeau résultat --}}
   <div class="roll-result-banner {{resultClass}}">
-    {{#if isCriticalSuccess}}
+    {{#if autoSuccess}}
+      <span class="result-icon">★</span>
+      <span class="result-label">{{localize "CELESTOPOL.Roll.autoSuccess"}}</span>
+    {{else if isCriticalSuccess}}
       <span class="result-icon">✦✦</span>
       <span class="result-label">{{localize "CELESTOPOL.Roll.criticalSuccess"}}</span>
       <span class="result-desc">{{localize "CELESTOPOL.Roll.criticalSuccessDesc"}}</span>
diff --git a/templates/roll-dialog.hbs b/templates/roll-dialog.hbs
index 18c2d95..f5541ce 100644
--- a/templates/roll-dialog.hbs
+++ b/templates/roll-dialog.hbs
@@ -42,14 +42,14 @@
         <label for="modifier">{{localize "CELESTOPOL.Roll.modifier"}}</label>
         <select id="modifier" name="modifier">
           {{#each modifierChoices as |choice|}}
-          <option value="{{choice.value}}" {{#if (eq choice.value 0)}}selected{{/if}}>{{choice.label}}</option>
+          <option value="{{choice.value}}" {{#if (eq choice.id "malaise")}}selected{{/if}}>{{choice.label}}</option>
           {{/each}}
         </select>
       </div>
       <div class="form-row-line">
         <label for="aspectModifier">{{localize "CELESTOPOL.Roll.aspect"}}</label>
         <select id="aspectModifier" name="aspectModifier">
-          {{#each modifierChoices as |choice|}}
+          {{#each aspectChoices as |choice|}}
           <option value="{{choice.value}}" {{#if (eq choice.value 0)}}selected{{/if}}>{{choice.label}}</option>
           {{/each}}
         </select>