diff --git a/render_engine_v2.py b/render_engine_v2.py
index f8467c4..7c09e20 100644
--- a/render_engine_v2.py
+++ b/render_engine_v2.py
@@ -38,8 +38,14 @@ def hex_to_rgb(h: str) -> RGBColor:
     return RGBColor(int(h[0:2], 16), int(h[2:4], 16), int(h[4:6], 16))
 
 
-def pick(d: dict, *keys, default=""):
-    """Accès tolérant : retourne la première clé non vide trouvée."""
+def pick(d, *keys, default=""):
+    """Accès tolérant : première clé non vide trouvée.
+    Si d est une chaîne (l'agent a produit 'Texte' au lieu de {label:'Texte'}),
+    on la retourne directement — évite les crashs 'str has no attribute get'."""
+    if isinstance(d, str):
+        return d
+    if not isinstance(d, dict):
+        return default
     for k in keys:
         v = d.get(k)
         if v not in (None, ""):
@@ -47,6 +53,16 @@ def pick(d: dict, *keys, default=""):
     return default
 
 
+def as_label(item, *keys, default=""):
+    """Normalise un élément de liste en texte : 'Texte' ou {label:'Texte'}."""
+    if isinstance(item, str):
+        return item
+    if isinstance(item, dict):
+        return pick(item, *(keys or ("label", "texte", "titre", "title")),
+                    default=default)
+    return default
+
+
 def estimate_text_height(text: str, size_pt: int, width_cm: float) -> float:
     """Hauteur estimée d'un texte (cm) pour une largeur donnée."""
     if not text:
@@ -475,6 +491,8 @@ class RenderEngineV2:
         y = self._cy(tot)
         bd = self.components["badge"]["sizes"]["l"]
         for i, st in enumerate(steps):
+            if isinstance(st, str):
+                st = {"titre": st}
             self._card(slide, self.MX, y, self.SLIDE_W - 2 * self.MX, rh)
             self._badge(slide, self.MX + 1.02 + bd / 2, y + rh / 2, bd,
                         st.get("numero", i + 1), font_size=28)
@@ -665,7 +683,8 @@ class RenderEngineV2:
         HDR_H    = 0.80
         WS_H     = 0.68
         TASK_H   = 0.78
-        n_tasks  = sum(len(ws.get("tasks", [])) for ws in workstreams)
+        n_tasks  = sum(len(ws.get("tasks", [])) for ws in workstreams
+                       if isinstance(ws, dict))
         total_h  = HDR_H + len(workstreams)*WS_H + n_tasks*TASK_H
         y0       = self._cy(total_h)
         gx       = self.MX + LBL_W + GAP_COL  # grid x origin
@@ -687,6 +706,8 @@ class RenderEngineV2:
 
         cur_y = y0 + HDR_H
         for ws_idx, ws in enumerate(workstreams):
+            if not isinstance(ws, dict):
+                continue
             ws_col = self.cycle[ws_idx % len(self.cycle)]
             # Workstream row
             self._rect(slide, self.MX, cur_y, self.SLIDE_W - 2*self.MX, WS_H, "#EEECEA")
@@ -696,6 +717,8 @@ class RenderEngineV2:
                        color=self.C["navy"], anchor=MSO_ANCHOR.MIDDLE)
             cur_y += WS_H
             for task in ws.get("tasks", []):
+                if not isinstance(task, dict):
+                    continue
                 start = task.get("start", 0)
                 end   = task.get("end", start + 1)
                 bg    = self.C["white"]
@@ -837,6 +860,8 @@ class RenderEngineV2:
 
         # Rows
         for i, task in enumerate(tasks):
+            if not isinstance(task, dict):
+                continue
             ry = y + HDR_H + i * ROW_H
             bg = self.C["card"] if i % 2 == 0 else self.C["white"]
             self._rect(slide, self.MX, ry, self.SLIDE_W - 2*self.MX, ROW_H, bg)
@@ -907,12 +932,25 @@ class RenderEngineV2:
     # ── org_chart ─────────────────────────────────────────────────────────────
     def _render_org_chart(self, slide, d):
         self._title(slide, pick(d, "titre", "title"))
+
+        def _node(n):
+            """Normalise un nœud : 'Texte' → {label:'Texte'}, dict inchangé."""
+            if isinstance(n, str):
+                return {"label": n, "children": []}
+            if isinstance(n, dict):
+                return {"label": pick(n, "label", "titre", "title", "nom"),
+                        "children": n.get("children", []) or []}
+            return {"label": str(n), "children": []}
+
         root = d.get("root", {})
+        if isinstance(root, str):
+            root = {"label": root, "children": []}
         if not root:
             return
+        root = _node(root)
         BOX_W, BOX_H = 3.81, 1.0
         GAP_V, GAP_H = 1.27, 0.64
-        children   = root.get("children", [])
+        children   = [_node(c) for c in root.get("children", [])]
         n_children = len(children)
         # grandchildren count per child (max)
         max_gd = max((len(c.get("children", [])) for c in children), default=0)
@@ -971,7 +1009,7 @@ class RenderEngineV2:
             ln3.line.width = Pt(1.0)
 
             # Grandchildren — sizing dynamique pour tenir dans la colonne
-            grandchildren = child.get("children", [])
+            grandchildren = [_node(g) for g in child.get("children", [])]
             if grandchildren:
                 gd_y  = child_y + BOX_H + GAP_V
                 n_gd  = len(grandchildren)
@@ -1077,6 +1115,8 @@ class RenderEngineV2:
 
         # Items as numbered circles
         for i, item in enumerate(items):
+            if not isinstance(item, dict):
+                continue
             ix = item.get("x", 50)  # 0-100
             iy = item.get("y", 50)  # 0-100
             px = mx0 + (ix / 100) * MAT_W
@@ -1099,7 +1139,7 @@ class RenderEngineV2:
                            size=9, bold=True, color=self.C["white"],
                            align=PP_ALIGN.CENTER, anchor=MSO_ANCHOR.MIDDLE)
                 self._text(slide, lx + 0.6, leg_y - 0.35, 2.8, 0.6,
-                           item.get("label", ""), size=10, color=self.C["body"])
+                           as_label(item), size=10, color=self.C["body"])