diff --git a/core/libs/prx/libSceNpSessionSignaling/Export.cpp b/core/libs/prx/libSceNpSessionSignaling/Export.cpp
index d3086ee40a..e75842f866 100644
--- a/core/libs/prx/libSceNpSessionSignaling/Export.cpp
+++ b/core/libs/prx/libSceNpSessionSignaling/Export.cpp
@@ -99,4 +99,14 @@ int APS5_VABI sceNpSessionSignalingGetGroupFromSessionId(void) {
     return 0;
 }
 
+int APS5_VABI sceNpSessionSignalingGetGroupInfo() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
+int APS5_VABI sceNpSessionSignalingGetConnectionFromNetAddress2() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 }
diff --git a/core/libs/prx/libSceRudp/Export.cpp b/core/libs/prx/libSceRudp/Export.cpp
index 2bf31d06e5..0dcf019ce6 100644
--- a/core/libs/prx/libSceRudp/Export.cpp
+++ b/core/libs/prx/libSceRudp/Export.cpp
@@ -286,4 +286,24 @@ int APS5_VABI sceRudpGetMaxSegmentSize(uint16_t* size) {
     return 0;
 }
 
+int APS5_VABI sceRudpPollCreate() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
+int APS5_VABI sceRudpPollControl() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
+int APS5_VABI sceRudpPollWait() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
+int APS5_VABI sceRudpPollDestroy() {
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 }
diff --git a/docs/dev/debt/libSceNpSessionSignaling.md b/docs/dev/debt/libSceNpSessionSignaling.md
index 9f9b7ad514..c23308b9fe 100644
--- a/docs/dev/debt/libSceNpSessionSignaling.md
+++ b/docs/dev/debt/libSceNpSessionSignaling.md
@@ -6,3 +6,5 @@
 - [sceNpSessionSignalingGetMemoryInfo](../../../core/libs/prx/libSceNpSessionSignaling/Export.cpp) (libSceNpSessionSignaling) - unknown signature
 - [sceNpSessionSignalingGetConnectionStatistics](../../../core/libs/prx/libSceNpSessionSignaling/Export.cpp) (libSceNpSessionSignaling) - unknown signature
 - [sceNpSessionSignalingGetConnectionStatus](../../../core/libs/prx/libSceNpSessionSignaling/Export.cpp) (libSceNpSessionSignaling) - `(int32 context id, int32 connection id, int32* status, SceNetInAddr* peer address, uint16* peer port)` is ASTRO BOT's (PPSA21564 01.007.000) call at 0x30622B: the context id from a 32-bit field, the connection id, three stack outputs, a negative result taken as an error, then the address passed to `sceNetInetNtop(AF_INET, ...)` and the port to `sceNetNtohs`. It matches PS4's `sceNpSignalingGetConnectionStatus`. The title reaches it only for a connection id from the signaling library, which offline never hands one out. No session ever activates offline, so every connection id answers `CONN_NOT_FOUND` (0x8055330C, from [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/64d198190fa05d37cbb1fa29c50f967c376fce55/src/core/libraries/np/np_error.h)) without writing the outputs, and a null status answers `INVALID_ARGUMENT`. The context id is not checked, as contexts are not tracked. The console's answer for an unknown context or connection is unverified
+- PPSA31327 imports declared without parameters, signatures unknown: [sceNpSessionSignalingGetGroupInfo, sceNpSessionSignalingGetConnectionFromNetAddress2](../../../core/libs/prx/libSceNpSessionSignaling/Export.cpp) (libSceNpSessionSignaling), imported by Yakuza 0 Director's Cut and not called before the main menu.
+
diff --git a/docs/dev/debt/libSceRudp.md b/docs/dev/debt/libSceRudp.md
index f2e4d7383b..38a4add132 100644
--- a/docs/dev/debt/libSceRudp.md
+++ b/docs/dev/debt/libSceRudp.md
@@ -10,3 +10,5 @@
 - [sceRudpGetStatus](../../../core/libs/prx/libSceRudp/Export.cpp) - PPSA01521 passes an output pointer and byte count `0xF8`. Measured on a PS5 (firmware 13.60): the status is 0xF8 bytes; before `sceRudpInit` every call returns `RUDP_ERROR_NOT_INITIALIZED`, and after it a null pointer or a byte count of 0 or above 0xF8 returns `RUDP_ERROR_INVALID_ARGUMENT`. The layout matches `SceRudpStatus` in [Vita3K](https://github.com/AndnixSH/Vita3K-PS-Vita-OS-Fork/blob/master/vita3k/modules/SceRudp/SceLibRudp.cpp) with `currentContexts` at 0x64 and `allocs`, `frees`, `memCurrent` and `memPeak` at 0xC8 to 0xD4. Only `currentContexts` is reported: the traffic counters stay 0 because nothing is sent, and the allocator counters stay 0 because the library does not allocate from the title's pool (the console reports 6 allocations and 0x1260 bytes right after `sceRudpInit`, and 4 more allocations and 0x3F0 bytes per context). The console also writes `currentContexts` and the allocator counters when the byte count is smaller than their offset; only the requested bytes are written here.
 - [sceRudpGetMaxSegmentSize](../../../core/libs/prx/libSceRudp/Export.cpp) (libSceRudp) - measured on a PS5 (firmware 13.60) in #3073: before `sceRudpInit` it returns `RUDP_ERROR_NOT_INITIALIZED` and leaves the value untouched, also for a null pointer; after it a null pointer returns `RUDP_ERROR_INVALID_ARGUMENT` and a valid one gets 1410 with result 0. The library keeps no configurable segment size (there is no `sceRudpSetMaxSegmentSize`), so 1410 is always reported. The `uint16_t*` parameter is inferred: the measurement does not show how many bytes the console writes, PPSA03490 passes a pointer to a 16-bit value and [RPCS3](https://github.com/RPCS3/rpcs3/blob/master/rpcs3/Emu/Cell/Modules/cellRudp.cpp) declares the PS3 `cellRudpSetMaxSegmentSize(u16 mss)`, so only 16 bits are written
 - PPSA06888 imports declared without parameters, signatures unknown: [sceRudpEnableInternalIOThread2, sceRudpGetOption, sceRudpGetRemoteInfo](../../../core/libs/prx/libSceRudp/Export.cpp) (libSceRudp), imported by its bundled `Media/Plugins/SceRudp.prx` and not called during start-up. Names from the NID table of [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/rudp/rudp.cpp), which declares them without parameters too
+- PPSA31327 imports declared without parameters, signatures unknown: [sceRudpPollCreate, sceRudpPollControl, sceRudpPollWait, sceRudpPollDestroy](../../../core/libs/prx/libSceRudp/Export.cpp) (libSceRudp), imported by Yakuza 0 Director's Cut and not called before the main menu. Names from the NID table of [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/rudp/rudp.cpp)
+