diff --git a/README.md b/README.md
index bdcf384..ff68770 100644
--- a/README.md
+++ b/README.md
@@ -49,18 +49,14 @@ Chaque développeur lance `install.sh` une fois.
 git clone https://gargoton.petite-maison-orange.fr/eric/CrazyClaude.git .claude
 ```
 
-### 2. Cloner llm-functions
-
-```sh
-git clone https://github.com/sigoden/llm-functions.git .claude/llm-functions
-```
-
-### 3. Lancer le script d'installation
+### 2. Lancer le script d'installation
 
 ```sh
 bash .claude/install.sh
 ```
 
+Le script clone automatiquement `llm-functions` si absent.
+
 Le script :
 - crée le virtualenv Python
 - construit les outils llm-functions
diff --git a/install.sh b/install.sh
index 769d912..e1c4a95 100755
--- a/install.sh
+++ b/install.sh
@@ -25,14 +25,14 @@ python3 -m venv "$CLAUDE_DIR/venv"
 echo "OK"
 
 echo ""
-echo "=== Construction des outils llm-functions ==="
-if [[ -f "$CLAUDE_DIR/llm-functions/Argcfile.sh" ]]; then
-    (cd "$CLAUDE_DIR/llm-functions" && argc build)
-    echo "OK"
+echo "=== Installation de llm-functions ==="
+if [[ ! -f "$CLAUDE_DIR/llm-functions/Argcfile.sh" ]]; then
+    git clone https://github.com/sigoden/llm-functions.git "$CLAUDE_DIR/llm-functions"
 else
-    echo "WARN : llm-functions non trouvé — lance d'abord :"
-    echo "  git subtree add --prefix .claude/llm-functions https://github.com/sigoden/llm-functions.git main --squash"
+    echo "déjà présent"
 fi
+(cd "$CLAUDE_DIR/llm-functions" && argc build)
+echo "OK"
 
 echo ""
 echo "=== Mise à jour du .gitignore projet ==="