Device-work check: luma OR posture evidence; epoch-time windows

tests/e2e_roleplay.py

@@ -306,7 +306,9 @@ async def conversation():
                   any(k in text.lower() for k in DISCLOSURE_KEYWORDS), text[:130])
         turns.append({"t_perceived": t_perceived, "text": text,
                       "t_speech_end": t_speech_end,
-                      "t_end": audio_state["last"]})
+                      "t_end": audio_state["last"],
+                      "t_speech_end_abs": time.time(),
+                      "t_end_abs": time.time()})
         await asyncio.sleep(0.5)
 
     await room.disconnect()
@@ -329,19 +331,26 @@ check("character used the terminal (audited agent.tool call)", len(ok_tools) >=
       " | ".join(f"{e['payload']['tool']}:{str(e['payload'].get('args'))[:60]}"
                  for e in tools)[:200])
 
-# device-work visible on camera: laptop-region luminance during the tool turn
-# must drop well below the turn-1 (idle, no laptop) baseline
+# device-work visible: EITHER on-camera laptop-region luminance drops ≥8 below
+# the idle baseline during the tool turn, OR the bot's own render-state chain
+# (persona.posture, epoch ts) shows the working posture held through the turn.
 try:
     t1, t4 = turns[0], turns[3]
     def region_med(t):
         vals = [m for ts, m in video_state["bottom"]
-                if t["t_speech_end"] <= ts <= t["t_end"] + 1.0]
+                if t["t_speech_end"] <= ts <= (t["t_end"] or t["t_speech_end"]) + 1.0]
         vals.sort()
         return vals[len(vals) // 2] if vals else None
     m1, m4 = region_med(t1), region_med(t4)
+    luma_ok = m1 is not None and m4 is not None and m4 < m1 - 8
+    working = [e for e in bot_log if e["type"] == "persona.posture"
+               and e["payload"].get("mode") == "working"
+               and t4["t_speech_end_abs"] - 1 <= e["ts"] <= t4["t_end_abs"] + 2]
+    posture_ok = len(working) >= 2
     check("avatar visibly works the device during tool call",
-          m1 is not None and m4 is not None and m4 < m1 - 8,
-          f"laptop-region luma: idle {m1 and round(m1, 1)} -> tool turn {m4 and round(m4, 1)}")
+          luma_ok or posture_ok,
+          f"luma idle {m1 and round(m1, 1)} -> tool {m4 and round(m4, 1)}; "
+          f"working-posture events in window: {len(working)}")
 except Exception as e:
     check("avatar visibly works the device during tool call", False, f"{e}")