Checkpoint Odysseus local update

routes/chat_helpers.py

@@ -14,6 +14,7 @@ from core.database import Session as DBSession, ModelEndpoint
 from src.llm_core import normalize_model_id
 from src.endpoint_resolver import normalize_base
 from src.context_compactor import maybe_compact, trim_for_context
+from src.model_context import estimate_tokens
 from src.auth_helpers import effective_user
 from src.prompt_security import untrusted_context_message
 from routes.prefs_routes import _load_for_user as load_prefs_for_user
@@ -99,6 +100,11 @@ class ChatContext:
     uprefs: dict
     preset: PresetInfo
     preprocessed: PreprocessedMessage
+    context_trimmed: bool = False
+    context_messages_before_trim: int = 0
+    context_messages_after_trim: int = 0
+    context_tokens_before_trim: int = 0
+    context_tokens_after_trim: int = 0
     # Documents auto-created server-side during preprocess (e.g. when an
     # attached fillable PDF gets rendered into a markdown editor doc).
     # The chat route emits a doc_update SSE event for each before streaming
@@ -777,7 +783,12 @@ async def build_chat_context(
     messages, context_length, was_compacted = await maybe_compact(
         sess, sess.endpoint_url, sess.model, messages, sess.headers, owner=user,
     )
+    _before_trim_messages = len(messages)
+    _before_trim_tokens = estimate_tokens(messages)
     messages = trim_for_context(messages, context_length)
+    _after_trim_messages = len(messages)
+    _after_trim_tokens = estimate_tokens(messages)
+    _context_trimmed = _after_trim_messages < _before_trim_messages or _after_trim_tokens < _before_trim_tokens
 
     return ChatContext(
         preface=preface,
@@ -791,6 +802,11 @@ async def build_chat_context(
         uprefs=uprefs,
         preset=preset,
         preprocessed=preprocessed,
+        context_trimmed=_context_trimmed,
+        context_messages_before_trim=_before_trim_messages,
+        context_messages_after_trim=_after_trim_messages,
+        context_tokens_before_trim=_before_trim_tokens,
+        context_tokens_after_trim=_after_trim_tokens,
         auto_opened_docs=auto_opened_docs,
         uploaded_files=uploaded_files,
     )