diff --git a/MobileGL/MG_Test/Wire/PeerLatchTest.cpp b/MobileGL/MG_Test/Wire/PeerLatchTest.cpp
index f73d37c8..18eb7990 100644
--- a/MobileGL/MG_Test/Wire/PeerLatchTest.cpp
+++ b/MobileGL/MG_Test/Wire/PeerLatchTest.cpp
@@ -1152,7 +1152,7 @@ namespace {
          }},
         // P8-F: ProtocolCorruption, no longer UnmigratedVerb - our client cannot send this shape
         // (nor +CLIENT_INDICES, the same site), so only a foreign peer like this one reaches it.
-        {"MultiDrawInstanced", "PipeApplier.cpp", "MultiDraw*+INSTANCED", Outcome::Latched,
+        {"MultiDrawInstanced", "RecordVerbSink.cpp", "MultiDraw*+INSTANCED", Outcome::Latched,
          "Fatal{ProtocolCorruption, \"MultiDrawArrays+INSTANCED\"}", false,
          [](Client::ClientSession& c, PeerReport& r) {
              P::MGPDrawInfo info{};
@@ -1165,7 +1165,7 @@ namespace {
              std::memcpy(tail.data(), ranges, sizeof(ranges));
              return Forge(c, r, P::MGPWireOp::DrawVbo, Bytes(info), {tail});
          }},
-        {"UnitWindowSamplerViews", "PipeApplier.cpp", "SetSamplerViews.Count (unit window)", Outcome::Latched,
+        {"UnitWindowSamplerViews", "RecordVerbSink.cpp", "SetSamplerViews.Count (unit window)", Outcome::Latched,
          "Fatal{ProtocolCorruption, \"SetSamplerViews.Count\"} - draw_vbo applies", false,
          [](Client::ClientSession& c, PeerReport& r) {
              P::MGPContextValues values{};
@@ -1185,7 +1185,7 @@ namespace {
              const P::MGPDrawRange range{0, 3, 0};
              return Forge(c, r, P::MGPWireOp::DrawVbo, Bytes(info), {Bytes(range)});
          }},
-        {"UnitWindowSamplerStates", "PipeApplier.cpp", "BindSamplerStates.Count (unit window)", Outcome::Latched,
+        {"UnitWindowSamplerStates", "RecordVerbSink.cpp", "BindSamplerStates.Count (unit window)", Outcome::Latched,
          "Fatal{ProtocolCorruption, \"BindSamplerStates.Count\"} - draw_vbo applies", false,
          [](Client::ClientSession& c, PeerReport& r) {
              P::MGPContextValues values{};
@@ -1248,7 +1248,7 @@ namespace {
         // P9 (CONTRACT-P9.md §1): the pack-buffer readbacks. Each sink has ONE shape site, fed by
         // every check (box, extent, PH-3 bound, Src.DstSize, the layout), so one row per sink
         // covers them; the texture sink's unreadable-level site is the third.
-        {"ReadPixelsToBufferShape", "PipeApplier.cpp", "ReadPixelsToBuffer.shape", Outcome::Latched,
+        {"ReadPixelsToBufferShape", "RecordVerbSink.cpp", "ReadPixelsToBuffer.shape", Outcome::Latched,
          "Fatal{ProtocolCorruption, \"ReadPixelsToBuffer.shape\"} the read box or its format is invalid", false,
          [](Client::ClientSession& c, PeerReport& r) {
              P::MGPReadbackToBuffer rec{};
@@ -1259,7 +1259,7 @@ namespace {
              rec.RowStride = 16;
              return Forge(c, r, P::MGPWireOp::ReadPixelsToBuffer, Bytes(rec));
          }},
-        {"GetTextureImageToBufferShape", "PipeApplier.cpp", "GetTextureImageToBuffer.shape", Outcome::Latched,
+        {"GetTextureImageToBufferShape", "RecordVerbSink.cpp", "GetTextureImageToBuffer.shape", Outcome::Latched,
          "Fatal{ProtocolCorruption, \"GetTextureImageToBuffer.shape\"} the image extent is not a whole level's", false,
          [](Client::ClientSession& c, PeerReport& r) {
              P::MGPReadbackToBuffer rec{};
@@ -1275,7 +1275,7 @@ namespace {
         // A well-shaped record naming a texture the server never created: the level cannot be
         // read, and with no reply to answer ERROR in, the session latches under the reply form's
         // family word.
-        {"GetTextureImageToBufferUnreadable", "PipeApplier.cpp", "GetTextureImageToBuffer", Outcome::Latched,
+        {"GetTextureImageToBufferUnreadable", "RecordVerbSink.cpp", "GetTextureImageToBuffer", Outcome::Latched,
          "Fatal{ReplyError, \"GetTextureImageToBuffer\"}", true,
          [](Client::ClientSession& c, PeerReport& r) {
              P::MGPReadbackToBuffer rec{};
diff --git a/scripts/ci/ph_latch_sites.py b/scripts/ci/ph_latch_sites.py
index 06317400..169ec1f5 100644
--- a/scripts/ci/ph_latch_sites.py
+++ b/scripts/ci/ph_latch_sites.py
@@ -38,6 +38,8 @@ TEST = ROOT / "MobileGL" / "MG_Test" / "Wire" / "PeerLatchTest.cpp"
 FILES = {
     "PipeWireCodec.cpp": ROOT / "MobileGL" / "MG_Remote" / "Wire" / "PipeWireCodec.cpp",
     "PipeApplier.cpp": ROOT / "MobileGL" / "MG_Remote" / "Server" / "PipeApplier.cpp",
+    # P13 W5: the record verbs ServerVerbSink applied moved to their own consumer, with their latches.
+    "RecordVerbSink.cpp": ROOT / "MobileGL" / "MG_Backend" / "Record" / "RecordVerbSink.cpp",
     "ServerLoop.cpp": ROOT / "MobileGL" / "MG_Remote" / "Server" / "ServerLoop.cpp",
     "SurfaceOpCodec.cpp": ROOT / "MobileGL" / "MG_Remote" / "Protocol" / "SurfaceOpCodec.cpp",
 }
@@ -75,7 +77,7 @@ UNREACHABLE = [
      "peer's bytes; ServerLoopTest's lost-window case is its negative control"),
     # P9 (CONTRACT-P9.md §1): the pack-buffer read's decline. The reply form's twin answers
     # DECLINED for the same case and has no row either.
-    ("PipeApplier.cpp", 'Fatal{ReadbackDeclined, "ReadPixelsToBuffer"}',
+    ("RecordVerbSink.cpp", 'Fatal{ReadbackDeclined, "ReadPixelsToBuffer"}',
      "both server backends install GL.ReadPixels; no record bytes can take the slot away, so the "
      "arm exists only for a backend that never had one"),
 ]
@@ -154,7 +156,8 @@ def print_mechanics():
               ", ".join(f"`{case_suite(f, c)}.{c}` ({f})" for f, c in cases) + " |")
 
 
-LATCH_CALL = re.compile(r"(?<![A-Za-z0-9_])(SessionLatch|WireProtocolLatchAt|WireProtocolLatch)\s*\(")
+# P13 W5: MGPipeRecordLatch is SessionLatch through the record arm's seam (MG_Pipe/PipeSessionFail.h).
+LATCH_CALL = re.compile(r"(?<![A-Za-z0-9_])(SessionLatch|MGPipeRecordLatch|WireProtocolLatchAt|WireProtocolLatch)\s*\(")
 STRING = re.compile(r'"((?:[^"\\]|\\.)*)"')
 CONVERSION = re.compile(r"%[-+ #0-9.]*(?:hh|h|ll|l|z|j|t)?[diouxXcsp]")
 
@@ -282,7 +285,7 @@ def latch_sites():
                 if re.search(r"\bBool\s+WireProtocolLatch(At)?\s*\(", previous):
                     continue  # the SessionLatch inside the helper: its callers are the sites
                 args = string_args(call_text(lines, index, match.start()))
-                if match.group(1) == "SessionLatch":
+                if match.group(1) in ("SessionLatch", "MGPipeRecordLatch"):
                     fmt = next((a for a in args[1:] if a is not None), None)
                 elif match.group(1) == "WireProtocolLatch":
                     fmt = None if args[0] is None else (