diff --git a/src/memory/common/db/models/source_items.py b/src/memory/common/db/models/source_items.py
index 2dc7fef..3c011a8 100644
--- a/src/memory/common/db/models/source_items.py
+++ b/src/memory/common/db/models/source_items.py
@@ -5,6 +5,7 @@ Database models for the knowledge base system.
 import pathlib
 import textwrap
 from datetime import datetime
+from collections.abc import Collection
 from typing import Any, Annotated, Sequence, cast
 
 from PIL import Image
@@ -309,16 +310,16 @@ class DiscordMessage(SourceItem):
     recipient_user = relationship("DiscordUser", foreign_keys=[recipient_id])
 
     @property
-    def allowed_tools(self) -> list[str]:
-        return (
+    def allowed_tools(self) -> set[str]:
+        return set(
             (self.channel.allowed_tools if self.channel else [])
             + (self.from_user.allowed_tools if self.from_user else [])
             + (self.server.allowed_tools if self.server else [])
         )
 
     @property
-    def disallowed_tools(self) -> list[str]:
-        return (
+    def disallowed_tools(self) -> set[str]:
+        return set(
             (self.channel.disallowed_tools if self.channel else [])
             + (self.from_user.disallowed_tools if self.from_user else [])
             + (self.server.disallowed_tools if self.server else [])
@@ -329,6 +330,11 @@ class DiscordMessage(SourceItem):
             not self.allowed_tools or tool in self.allowed_tools
         )
 
+    def filter_tools(self, tools: Collection[str] | None = None) -> set[str]:
+        if tools is None:
+            return self.allowed_tools - self.disallowed_tools
+        return set(tools) - self.disallowed_tools & self.allowed_tools
+
     @property
     def ignore_messages(self) -> bool:
         return (
@@ -359,7 +365,7 @@ class DiscordMessage(SourceItem):
     def title(self) -> str:
         return f"{self.from_user.username} ({self.sent_at.isoformat()[:19]}): {self.content}"
 
-    def as_content(self):
+    def as_content(self) -> dict[str, Any]:
         """Return message content ready for LLM (text + images from disk)."""
         content = {"text": self.title, "images": []}
         for path in cast(list[str] | None, self.images) or []:
diff --git a/src/memory/discord/messages.py b/src/memory/discord/messages.py
index b6f4cfa..3f4d254 100644
--- a/src/memory/discord/messages.py
+++ b/src/memory/discord/messages.py
@@ -1,16 +1,20 @@
 import logging
 import textwrap
+from collections.abc import Collection
 from datetime import datetime, timezone
 from typing import Any, cast
 
 from sqlalchemy.orm import Session, scoped_session
 
+from memory.common import discord, settings
 from memory.common.db.models import (
     DiscordChannel,
+    DiscordMessage,
     DiscordUser,
     ScheduledLLMCall,
-    DiscordMessage,
 )
+from memory.common.db.models.users import BotUser
+from memory.common.llms.base import create_provider
 
 logger = logging.getLogger(__name__)
 
@@ -199,3 +203,94 @@ def comm_channel_prompt(
         You will be given the last {max_messages} messages in the conversation.
         Please react to them appropriately. You can return an empty response if you don't have anything to say.
     """).format(server_context=server_context, max_messages=max_messages)
+
+
+def call_llm(
+    session: Session | scoped_session,
+    bot_user: BotUser,
+    from_user: DiscordUser | None,
+    channel: DiscordChannel | None,
+    model: str,
+    system_prompt: str = "",
+    messages: list[str | dict[str, Any]] = [],
+    allowed_tools: Collection[str] | None = None,
+    num_previous_messages: int = 10,
+) -> str | None:
+    """
+    Call LLM with Discord tools support.
+
+    Args:
+        session: Database session
+        bot_user: Bot user making the call
+        from_user: Discord user who initiated the interaction
+        channel: Discord channel (if any)
+        messages: List of message strings or dicts with text/images
+        model: LLM model to use
+        system_prompt: System prompt
+        allowed_tools: List of allowed tool names (None = all tools allowed)
+
+    Returns:
+        LLM response or None if failed
+    """
+    provider = create_provider(model=model)
+
+    if provider.usage_tracker.is_rate_limited(model):
+        logger.error(
+            f"Rate limited for model {model}: {provider.usage_tracker.get_usage_breakdown(model=model)}"
+        )
+        return None
+
+    user_id = None
+    if from_user and not channel:
+        user_id = from_user.id
+    prev_messages = previous_messages(
+        session,
+        user_id,
+        channel and channel.id,
+        max_messages=num_previous_messages,
+    )
+
+    from memory.common.llms.tools.discord import make_discord_tools
+
+    tools = make_discord_tools(bot_user, from_user, channel, model=model)
+
+    # Filter to allowed tools if specified
+    if allowed_tools is not None:
+        tools = {name: tool for name, tool in tools.items() if name in allowed_tools}
+
+    message_content = [m.as_content() for m in prev_messages] + messages
+    return provider.run_with_tools(
+        messages=provider.as_messages(message_content),
+        tools=tools,
+        system_prompt=system_prompt,
+        max_iterations=settings.DISCORD_MAX_TOOL_CALLS,
+    ).response
+
+
+def send_discord_response(
+    bot_id: int,
+    response: str,
+    channel_id: int | None = None,
+    user_identifier: str | None = None,
+) -> bool:
+    """
+    Send a response to Discord channel or user.
+
+    Args:
+        bot_id: Bot user ID
+        response: Message to send
+        channel_id: Channel ID (for channel messages)
+        user_identifier: Username (for DMs)
+
+    Returns:
+        True if sent successfully
+    """
+    if channel_id is not None:
+        logger.info(f"Sending message to channel {channel_id}")
+        return discord.send_to_channel(bot_id, channel_id, response)
+    elif user_identifier is not None:
+        logger.info(f"Sending DM to {user_identifier}")
+        return discord.send_dm(bot_id, user_identifier, response)
+    else:
+        logger.error("Neither channel_id nor user_identifier provided")
+        return False
diff --git a/src/memory/workers/tasks/discord.py b/src/memory/workers/tasks/discord.py
index a889eb8..02ce8d4 100644
--- a/src/memory/workers/tasks/discord.py
+++ b/src/memory/workers/tasks/discord.py
@@ -23,9 +23,7 @@ from memory.common.celery_app import (
 )
 from memory.common.db.connection import make_session
 from memory.common.db.models import DiscordMessage, DiscordUser
-from memory.common.llms.base import create_provider
-from memory.common.llms.tools.discord import make_discord_tools
-from memory.discord.messages import comm_channel_prompt, previous_messages
+from memory.discord.messages import call_llm, comm_channel_prompt, send_discord_response
 from memory.workers.tasks.content_processing import (
     check_content_exists,
     create_task_result,
@@ -84,54 +82,6 @@ def get_prev(
     return [f"{msg.username}: {msg.content}" for msg in prev[::-1]]
 
 
-def call_llm(
-    session,
-    message: DiscordMessage,
-    model: str,
-    msgs: list[str] = [],
-    allowed_tools: list[str] | None = None,
-) -> str | None:
-    provider = create_provider(model=model)
-    if provider.usage_tracker.is_rate_limited(model):
-        logger.error(
-            f"Rate limited for model {model}: {provider.usage_tracker.get_usage_breakdown(model=model)}"
-        )
-        return None
-
-    tools = make_discord_tools(
-        message.recipient_user.system_user,
-        message.from_user,
-        message.channel,
-        model=model,
-    )
-    tools = {
-        name: tool
-        for name, tool in tools.items()
-        if message.tool_allowed(name)
-        and (allowed_tools is None or name in allowed_tools)
-    }
-    system_prompt = message.system_prompt or ""
-    system_prompt += comm_channel_prompt(
-        session, message.recipient_user, message.channel
-    )
-    messages = previous_messages(
-        session,
-        message.recipient_user and message.recipient_user.id,
-        message.channel and message.channel.id,
-        max_messages=10,
-    )
-
-    # Build message list: previous messages + current message + any extra text msgs
-    message_content = [m.as_content() for m in messages + [message]] + msgs
-
-    return provider.run_with_tools(
-        messages=provider.as_messages(message_content),
-        tools=tools,
-        system_prompt=system_prompt,
-        max_iterations=settings.DISCORD_MAX_TOOL_CALLS,
-    ).response
-
-
 def should_process(message: DiscordMessage) -> bool:
     if not (
         settings.DISCORD_PROCESS_MESSAGES
@@ -155,16 +105,26 @@ def should_process(message: DiscordMessage) -> bool:
                 <reason>I want to continue the conversation because I think it's important.</reason>
             </response>
         """)
+
+        system_prompt = message.system_prompt or ""
+        system_prompt += comm_channel_prompt(
+            session, message.recipient_user, message.channel
+        )
+        allowed_tools = [
+            "update_channel_summary",
+            "update_user_summary",
+            "update_server_summary",
+        ]
+
         response = call_llm(
             session,
-            message,
-            settings.SUMMARIZER_MODEL,
-            [msg],
-            allowed_tools=[
-                "update_channel_summary",
-                "update_user_summary",
-                "update_server_summary",
-            ],
+            bot_user=message.recipient_user.system_user,
+            from_user=message.from_user,
+            channel=message.channel,
+            model=settings.SUMMARIZER_MODEL,
+            system_prompt=system_prompt,
+            messages=[msg],
+            allowed_tools=message.filter_tools(allowed_tools),
         )
         if not response:
             return False
@@ -230,23 +190,40 @@ def process_discord_message(message_id: int) -> dict[str, Any]:
             }
 
         try:
-            response = call_llm(session, discord_message, settings.DISCORD_MODEL)
+            response = call_llm(
+                session,
+                bot_user=discord_message.recipient_user.system_user,
+                from_user=discord_message.from_user,
+                channel=discord_message.channel,
+                model=settings.DISCORD_MODEL,
+                system_prompt=discord_message.system_prompt,
+            )
         except Exception:
             logger.exception("Failed to generate Discord response")
-
-        print("response:", response)
+            return {
+                "status": "error",
+                "error": "Failed to generate Discord response",
+                "message_id": message_id,
+            }
         if not response:
             return {
-                "status": "processed",
+                "status": "no-response",
                 "message_id": message_id,
             }
 
-        if discord_message.channel.server:
-            discord.send_to_channel(
-                bot_id, cast(int, discord_message.channel_id), response
-            )
-        else:
-            discord.send_dm(bot_id, discord_message.from_user.username, response)
+        res = send_discord_response(
+            bot_id=bot_id,
+            response=response,
+            channel_id=discord_message.channel_id,
+            user_identifier=discord_message.from_user
+            and discord_message.from_user.username,
+        )
+        if not res:
+            return {
+                "status": "error",
+                "error": "Failed to send Discord response",
+                "message_id": message_id,
+            }
 
     return {
         "status": "processed",
diff --git a/src/memory/workers/tasks/scheduled_calls.py b/src/memory/workers/tasks/scheduled_calls.py
index 76746b9..14e79a7 100644
--- a/src/memory/workers/tasks/scheduled_calls.py
+++ b/src/memory/workers/tasks/scheduled_calls.py
@@ -2,41 +2,45 @@ import logging
 from datetime import datetime, timezone
 from typing import cast
 
-from memory.common.db.connection import make_session
-from memory.common.db.models import ScheduledLLMCall
+from memory.common import settings
 from memory.common.celery_app import (
-    app,
     EXECUTE_SCHEDULED_CALL,
     RUN_SCHEDULED_CALLS,
+    app,
 )
-from memory.common import llms, discord
+from memory.common.db.connection import make_session
+from memory.common.db.models import ScheduledLLMCall
+from memory.discord.messages import call_llm, send_discord_response
 from memory.workers.tasks.content_processing import safe_task_execution
 
 logger = logging.getLogger(__name__)
 
 
+def _call_llm_for_scheduled(session, scheduled_call: ScheduledLLMCall) -> str | None:
+    """Call LLM with tools support for scheduled calls."""
+    if not scheduled_call.discord_user:
+        logger.warning("No discord_user for scheduled call - cannot execute")
+        return None
+
+    model = cast(str, scheduled_call.model or settings.DISCORD_MODEL)
+    system_prompt = cast(str, scheduled_call.system_prompt or "")
+    message = cast(str, scheduled_call.message)
+    allowed_tools_list = cast(list[str] | None, scheduled_call.allowed_tools)
+
+    return call_llm(
+        session=session,
+        bot_user=scheduled_call.user,
+        from_user=scheduled_call.discord_user,
+        channel=scheduled_call.discord_channel,
+        messages=[message],
+        model=model,
+        system_prompt=system_prompt,
+        allowed_tools=allowed_tools_list,
+    )
+
+
 def _send_to_discord(scheduled_call: ScheduledLLMCall, response: str):
-    """
-    Send the LLM response to the specified Discord user.
-
-    Args:
-        scheduled_call: The scheduled call object
-        response: The LLM response to send
-    """
-    # Format the message with topic, model, and response
-    message_parts = []
-    if cast(str, scheduled_call.topic):
-        message_parts.append(f"**Topic:** {scheduled_call.topic}")
-    if cast(str, scheduled_call.model):
-        message_parts.append(f"**Model:** {scheduled_call.model}")
-    message_parts.append(f"**Response:** {response}")
-
-    message = "\n".join(message_parts)
-
-    # Discord has a 2000 character limit, so we may need to split the message
-    if len(message) > 1900:  # Leave some buffer
-        message = message[:1900] + "\n\n... (response truncated)"
-
+    """Send the LLM response to Discord user or channel."""
     bot_id_value = scheduled_call.user_id
     if bot_id_value is None:
         logger.warning(
@@ -47,16 +51,16 @@ def _send_to_discord(scheduled_call: ScheduledLLMCall, response: str):
 
     bot_id = cast(int, bot_id_value)
 
-    if discord_user := scheduled_call.discord_user:
-        logger.info(f"Sending DM to {discord_user.username}: {message}")
-        discord.send_dm(bot_id, discord_user.username, message)
-    elif discord_channel := scheduled_call.discord_channel:
-        logger.info(f"Broadcasting message to {discord_channel.name}: {message}")
-        discord.broadcast_message(bot_id, discord_channel.name, message)
-    else:
-        logger.warning(
-            f"No Discord user or channel found for scheduled call {scheduled_call.id}"
-        )
+    send_discord_response(
+        bot_id=bot_id,
+        response=response,
+        channel_id=cast(int, scheduled_call.discord_channel.id)
+        if scheduled_call.discord_channel
+        else None,
+        user_identifier=scheduled_call.discord_user.username
+        if scheduled_call.discord_user
+        else None,
+    )
 
 
 @app.task(bind=True, name=EXECUTE_SCHEDULED_CALL)
@@ -92,15 +96,29 @@ def execute_scheduled_call(self, scheduled_call_id: str):
 
         logger.info(f"Calling LLM with model {scheduled_call.model}")
 
-        # Make the LLM call
-        if scheduled_call.model:
-            response = llms.summarize(
-                prompt=cast(str, scheduled_call.message),
-                model=cast(str, scheduled_call.model),
-                system_prompt=cast(str, scheduled_call.system_prompt),
-            )
-        else:
-            response = cast(str, scheduled_call.message)
+        # Make the LLM call with tools support
+        try:
+            response = _call_llm_for_scheduled(session, scheduled_call)
+        except Exception:
+            logger.exception("Failed to generate LLM response")
+            scheduled_call.status = "failed"
+            scheduled_call.error_message = "LLM call failed"
+            session.commit()
+            return {
+                "success": False,
+                "error": "LLM call failed",
+                "scheduled_call_id": scheduled_call_id,
+            }
+
+        if not response:
+            scheduled_call.status = "failed"
+            scheduled_call.error_message = "No response from LLM"
+            session.commit()
+            return {
+                "success": False,
+                "error": "No response from LLM",
+                "scheduled_call_id": scheduled_call_id,
+            }
 
         # Store the response
         scheduled_call.response = response