--- a/mrjunejune/inference_bridge.h	Fri Aug 07 07:34:12 2026 -0700
+++ b/mrjunejune/inference_bridge.h	Fri Aug 07 10:50:30 2026 -0700
@@ -5,6 +5,20 @@
 
 typedef struct Inference_Bridge Inference_Bridge;
 
+#define INFERENCE_BRIDGE_HISTORY_MAX 20
+
+/* A single prior-turn entry for transcript rehydration. */
+typedef struct {
+  const char *role;    /* must be "user" or "assistant"; never NULL */
+  const char *content; /* non-NULL; may be empty string             */
+} Inference_Bridge_History_Message;
+
+typedef enum {
+  INFERENCE_PROMPT_PROFILE_PUBLIC_VISITOR = 0,
+  INFERENCE_PROMPT_PROFILE_INVITED_FRIEND = 1,
+  INFERENCE_PROMPT_PROFILE_JUNE_ADMIN = 2,
+} Inference_Prompt_Profile;
+
 typedef struct {
   const char *type;
   const char *request_id;
@@ -34,11 +48,25 @@
 boolean Inference_Bridge_Start(Inference_Bridge *p_bridge);
 boolean Inference_Bridge_Is_Ready(const Inference_Bridge *p_bridge);
 
+/*
+ * Start an inference turn.
+ *
+ * p_history / history_count: optional bounded history for transcript
+ * rehydration.  Pass NULL / 0 if no prior context is available.
+ * history_count must not exceed INFERENCE_BRIDGE_HISTORY_MAX (20).
+ * Every entry must have role "user" or "assistant" and a non-NULL content.
+ * Returns FALSE and writes nothing if any validation constraint is violated.
+ */
 boolean Inference_Bridge_Start_Turn(
     Inference_Bridge *p_bridge,
     const char *request_id,
     const char *conversation_id,
-    const char *prompt);
+    const char *prompt,
+    Inference_Prompt_Profile prompt_profile,
+    uint32 prompt_version,
+    uint32 knowledge_version,
+    const Inference_Bridge_History_Message *p_history,
+    uint32 history_count);
 
 boolean Inference_Bridge_Abort_Turn(
     Inference_Bridge *p_bridge,