fix(agent): keep ambient context fail closed

src/chat_processor.py

@@ -325,7 +325,6 @@ class ChatProcessor:
                         "Pinned memory context. Some pinned memories are only "
                         f"included when relevant:\n- {pinned_text}"
                     ),
-                    arm_tool_gate=False,
                 ))
                 for m in selected_pinned:
                     self._last_used_memories.append({"text": m["text"], "category": m.get("category", "fact"), "type": "pinned"})
@@ -343,7 +342,6 @@ class ChatProcessor:
                             "Memory context. Do not reference unless the user asks "
                             f"about these topics.\n{ext_text}"
                         ),
-                        arm_tool_gate=False,
                     ))
                     for m in relevant:
                         self._last_used_memories.append({"text": m["text"], "category": m.get("category", "fact"), "type": "recalled"})
@@ -386,7 +384,6 @@ class ChatProcessor:
                         preface.append(untrusted_context_message(
                             "retrieved documents",
                             rag_content,
-                            arm_tool_gate=False,
                         ))
             except Exception as e:
                 logger.warning(f"RAG retrieval failed: {e}")
@@ -498,7 +495,6 @@ class ChatProcessor:
                 preface.append(untrusted_context_message(
                     "available skills index",
                     "\n".join(lines),
-                    arm_tool_gate=False,
                 ))
 
         return preface, rag_sources, web_sources