diff --git a/install.sh b/install.sh
index 6872c55..c11d63c 100755
--- a/install.sh
+++ b/install.sh
@@ -127,36 +127,40 @@ detect_agents() {
         fi
     }
 
-    _detect_gemini() {
-        command -v gemini &>/dev/null && return 0
-        local prefix
-        prefix=$(npm config get prefix 2>/dev/null) || return 1
-        [[ -n "$prefix" && -f "${prefix}/bin/gemini" ]]
+    # Cherche un binaire dans les répertoires courants : PATH, npm-global, nvm, local
+    _find_bin() {
+        local bin="$1"
+        command -v "$bin" &>/dev/null && return 0
+        [[ -f "$HOME/.npm-global/bin/$bin" ]] && return 0
+        [[ -f "$HOME/.local/bin/$bin" ]] && return 0
+        # nvm : toutes les versions node installées
+        find "$HOME/.nvm/versions/node" -name "$bin" -path "*/bin/$bin" 2>/dev/null | grep -q . && return 0
+        return 1
     }
 
     # claude-code
-    if [[ -d "$HOME/.claude" ]] || command -v claude &>/dev/null; then
+    if [[ -d "$HOME/.claude" ]] || _find_bin "claude"; then
         _add_agent "claude-code"
     else
         _skip_agent "claude-code"
     fi
 
     # gemini-cli
-    if _detect_gemini; then
+    if _find_bin "gemini"; then
         _add_agent "gemini-cli"
     else
         _skip_agent "gemini-cli"
     fi
 
     # codex
-    if command -v codex &>/dev/null || [[ -f "$HOME/.npm-global/bin/codex" ]]; then
+    if _find_bin "codex"; then
         _add_agent "codex"
     else
         _skip_agent "codex"
     fi
 
     # hermes
-    if command -v hermes &>/dev/null || [[ -f "$HOME/.local/bin/hermes" ]]; then
+    if _find_bin "hermes"; then
         _add_agent "hermes"
     else
         _skip_agent "hermes"