fix: get context cutoff to be exclusive (#193)

CHANGELOG.md

@@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Queue manager to use atomic db transactions rather than long lived transaction
   for the worker lifecycle
 - Timestamp formats unified to ISO 8601 across the codebase
+- Internal get_context method's cutoff value is exclusive now
 
 ## [2.2.0] — 2025-08-07
 

docs/changelog/introduction.mdx

@@ -55,6 +55,7 @@ Welcome to the Honcho changelog! This section documents all notable changes to t
         - Queue manager to use atomic db transactions rather than long lived transaction
           for the worker lifecycle
         - Timestamp formats unified to ISO 8601 across the codebase
+        - Internal get_context method's cutoff value is exclusive now
         </Update>
         <Update label="v2.2.0">
         ### Added

src/crud/message.py

@@ -2,7 +2,7 @@ from logging import getLogger
 from typing import Any
 
 from nanoid import generate as generate_nanoid
-from sqlalchemy import ColumnElement, Select, func, select
+from sqlalchemy import ColumnElement, Select, and_, func, select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from src import models, schemas
@@ -233,7 +233,9 @@ async def get_messages_id_range(
         models.Message.session_name == session_name,
     ]
     if end_id:
-        base_conditions.append(models.Message.id.between(start_id, end_id))
+        base_conditions.append(
+            and_(models.Message.id >= start_id, models.Message.id < end_id)
+        )
     else:
         base_conditions.append(models.Message.id >= start_id)