From cd14d223292769034ed599b3ffb091adafa47af0 Mon Sep 17 00:00:00 2001
From: XyLearningProgramming <XyLearningProgramming@users.noreply.github.com>
Date: Mon, 23 Feb 2026 20:26:30 +0800
Subject: [PATCH 1/4] =?UTF-8?q?=F0=9F=90=9B=20forced=20assist=20content=20?=
 =?UTF-8?q?to=20be=20not=20empty=20for=20llama=20cpp?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 slm_server/model.py | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/slm_server/model.py b/slm_server/model.py
index 6686e82..64f0663 100644
--- a/slm_server/model.py
+++ b/slm_server/model.py
@@ -13,7 +13,7 @@
     ChatCompletionTool,
     ChatCompletionToolChoiceOption,
 )
-from pydantic import BaseModel, ConfigDict, Field, conlist, model_validator
+from pydantic import BaseModel, ConfigDict, Field, conlist, field_validator, model_validator
 
 
 # ---------------------------------------------------------------------------
@@ -93,6 +93,27 @@ class ChatCompletionRequest(BaseModel):
         default=None, description="Number of top log probabilities to return"
     )
 
+    @field_validator("messages", mode="before")
+    @classmethod
+    def _normalize_assistant_content(cls, v: Any) -> Any:
+        """Allow ``content: null`` on assistant messages (OpenAI spec compat).
+
+        llama-cpp's TypedDict defines ``content: NotRequired[str]`` which
+        rejects ``None`` when the key is present.  The OpenAI spec allows
+        ``null`` on assistant messages that carry ``tool_calls``, and
+        langchain-openai sends it that way, so we normalise here.
+        """
+        if isinstance(v, list):
+            for msg in v:
+                if (
+                    isinstance(msg, dict)
+                    and msg.get("role") == "assistant"
+                    and "content" in msg
+                    and msg["content"] is None
+                ):
+                    msg["content"] = ""
+        return v
+
     @model_validator(mode="after")
     def _default_tool_choice_auto(self) -> Self:
         """Match OpenAI: default to "auto" when tools are present."""

From ed92c4fc21aaf4b1e367fe6e0368a8aa8275b729 Mon Sep 17 00:00:00 2001
From: XyLearningProgramming <XyLearningProgramming@users.noreply.github.com>
Date: Mon, 23 Feb 2026 20:29:05 +0800
Subject: [PATCH 2/4] =?UTF-8?q?=F0=9F=90=9B=20fixed=20lint?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 slm_server/model.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/slm_server/model.py b/slm_server/model.py
index 64f0663..23a4338 100644
--- a/slm_server/model.py
+++ b/slm_server/model.py
@@ -13,7 +13,14 @@
     ChatCompletionTool,
     ChatCompletionToolChoiceOption,
 )
-from pydantic import BaseModel, ConfigDict, Field, conlist, field_validator, model_validator
+from pydantic import (
+    BaseModel, 
+    ConfigDict, 
+    Field, 
+    conlist, 
+    field_validator, 
+    model_validator
+)
 
 
 # ---------------------------------------------------------------------------

From 1dcc7f8c0b4dca8769c9eedbaa93befac78d8804 Mon Sep 17 00:00:00 2001
From: XyLearningProgramming <XyLearningProgramming@users.noreply.github.com>
Date: Mon, 23 Feb 2026 20:32:14 +0800
Subject: [PATCH 3/4] =?UTF-8?q?=F0=9F=90=9B=20fixed=20lint=20again?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 slm_server/model.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/slm_server/model.py b/slm_server/model.py
index 23a4338..608ad46 100644
--- a/slm_server/model.py
+++ b/slm_server/model.py
@@ -14,11 +14,11 @@
     ChatCompletionToolChoiceOption,
 )
 from pydantic import (
-    BaseModel, 
-    ConfigDict, 
-    Field, 
-    conlist, 
-    field_validator, 
+    BaseModel,
+    ConfigDict,
+    Field,
+    conlist,
+    field_validator,
     model_validator
 )
 

From d889ffaa123dc46a5872cc8f742ae2e949f3695e Mon Sep 17 00:00:00 2001
From: XyLearningProgramming <XyLearningProgramming@users.noreply.github.com>
Date: Mon, 23 Feb 2026 20:34:51 +0800
Subject: [PATCH 4/4] =?UTF-8?q?=F0=9F=90=9B=20fixed=20lint=20again=20again?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 slm_server/model.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/slm_server/model.py b/slm_server/model.py
index 608ad46..b640281 100644
--- a/slm_server/model.py
+++ b/slm_server/model.py
@@ -19,7 +19,7 @@
     Field,
     conlist,
     field_validator,
-    model_validator
+    model_validator,
 )