diff --git a/vibe_bot/main.py b/vibe_bot/main.py
index cb9ecfb..17c9437 100644
--- a/vibe_bot/main.py
+++ b/vibe_bot/main.py
@@ -49,6 +49,8 @@ logger = logging.getLogger(__name__)
 # Initialize the bot
 intents = discord.Intents.default()
 intents.message_content = True
+intents.members = True
+intents.presences = True
 bot = commands.Bot(command_prefix="!", intents=intents)
 
 
@@ -370,6 +372,99 @@ async def lobotomize(ctx: CommandsContext[Bot]) -> None:
     await ctx.send("All conversation history and memory has been cleared. 🧠✨")
 
 
+@bot.command(name="debug")
+async def debug(
+    ctx: CommandsContext[Bot],
+    *,
+    subcommand: str | None = None,
+) -> None:
+    """Debug menu for various debugging sub-commands.
+
+    Usage: !debug <subcommand>
+    Available sub-commands:
+      - members: List all members in the current channel
+      - whoami: Show all information the bot has about you
+      - tools: Show the LLM's available tools
+    """
+    logger.info(
+        "Debug command triggered by %s with subcommand %r", ctx.author.name, subcommand
+    )
+
+    if not subcommand:
+        menu = "Debug Menu:\n\n"
+        menu += "Available sub-commands:\n"
+        menu += "- `members` - List all members in the current channel\n"
+        menu += "- `whoami` - Show all information the bot has about you\n"
+        menu += "- `tools` - Show the LLM's available tools"
+        await ctx.send(menu)
+        return
+
+    if subcommand == "members":
+        result = get_channel_members_impl(ctx.channel)
+        chunk_size = 1900
+        chunks: list[str] = []
+        current_chunk = result
+        while current_chunk:
+            if len(current_chunk) <= chunk_size:
+                chunks.append(current_chunk)
+                break
+            split_pos = current_chunk.rfind("\n", 0, chunk_size)
+            if split_pos == -1:
+                split_pos = chunk_size
+            chunks.append(current_chunk[:split_pos])
+            current_chunk = current_chunk[split_pos:].lstrip("\n")
+
+        for chunk in chunks:
+            await ctx.send(chunk)
+        return
+
+    if subcommand == "whoami":
+        user_info = get_user_info(ctx.author)
+        chunk_size = 1900
+        whoami_chunks: list[str] = []
+        current_chunk = user_info
+        while current_chunk:
+            if len(current_chunk) <= chunk_size:
+                whoami_chunks.append(current_chunk)
+                break
+            split_pos = current_chunk.rfind("\n", 0, chunk_size)
+            if split_pos == -1:
+                split_pos = chunk_size
+            whoami_chunks.append(current_chunk[:split_pos])
+            current_chunk = current_chunk[split_pos:].lstrip("\n")
+
+        for chunk in whoami_chunks:
+            await ctx.send(chunk)
+        return
+
+    if subcommand == "tools":
+        tool_list = "LLM Tools:\n\n"
+        tool_list += f"- `{get_channel_members.name}`\n"
+        tool_list += f"  Description: {get_channel_members.description}\n"
+        tool_list += f"  Parameters: {get_channel_members.args_schema.model_json_schema()}"  # type: ignore
+        chunk_size = 1900
+        tool_chunks: list[str] = []
+        current_chunk = tool_list
+        while current_chunk:
+            if len(current_chunk) <= chunk_size:
+                tool_chunks.append(current_chunk)
+                break
+            split_pos = current_chunk.rfind("\n", 0, chunk_size)
+            if split_pos == -1:
+                split_pos = chunk_size
+            tool_chunks.append(current_chunk[:split_pos])
+            current_chunk = current_chunk[split_pos:].lstrip("\n")
+
+        for chunk in tool_chunks:
+            await ctx.send(chunk)
+        return
+
+    await ctx.send(
+        f"Unknown debug sub-command: `{subcommand}`\n\n"
+        f"Use `!debug` to see available sub-commands.",
+    )
+
+
 @bot.command(name="voices")
 async def voices(ctx: CommandsContext[Bot]) -> None:
     """List all available TTS voices organized by category."""
@@ -377,7 +472,7 @@ async def voices(ctx: CommandsContext[Bot]) -> None:
     for category, info in VOICES_LIST.items():
         voice_list += f"{category} ({info['language']}):\n"
         for v in info["voices"]:
-            voice_list += f"  - {v}\n"
+            voice_list += f"- {v}\n"
         voice_list += "\n"
     voice_list += "Use `!speak <text> --voice <voice_name>` to choose a voice."
 
@@ -514,7 +609,9 @@ async def _speak_with_bot(
                 return get_channel_members_impl(ctx.channel)
             return f"Unknown tool: {tool_name}"
 
-        async def speak_tool_call_notifier(tool_name: str, tool_args: dict[str, str]) -> None:
+        async def speak_tool_call_notifier(
+            tool_name: str, tool_args: dict[str, str]
+        ) -> None:
             """Send a notification message when a tool is called."""
             if tool_name == "get_channel_members":
                 await ctx.send(f"**{bot_name}** is looking at the channel members...")
diff --git a/vibe_bot/tests/test_main.py b/vibe_bot/tests/test_main.py
index 392dab5..37c16dc 100644
--- a/vibe_bot/tests/test_main.py
+++ b/vibe_bot/tests/test_main.py
@@ -65,7 +65,7 @@ def test_bot_initialized(mock_discord: dict[str, MagicMock]) -> None:
 
 
 def test_bot_intents_set(mock_discord: dict[str, MagicMock]) -> None:
-    """Test that message_content intent is enabled."""
+    """Test that required intents are enabled."""
     import vibe_bot.main as main_module
 
     main_module.bot = mock_discord["bot_instance"]
@@ -74,6 +74,17 @@ def test_bot_intents_set(mock_discord: dict[str, MagicMock]) -> None:
     assert main_module.MIN_PERSONALITY_LENGTH == 10
 
 
+def test_bot_intents_members_and_presence(mock_discord: dict[str, MagicMock]) -> None:
+    """Test that members and presence intents are enabled."""
+    intents = mock_discord["Intents"].default.return_value
+    intents.message_content = True
+    intents.members = True
+    intents.presences = True
+    assert intents.message_content is True
+    assert intents.members is True
+    assert intents.presences is True
+
+
 @patch("vibe_bot.main.tts_engine", None)
 def test_speak_tts_not_initialized(mock_ctx: MagicMock) -> None:
     """Test speak command when TTS engine is not initialized."""
@@ -804,3 +815,149 @@ def test_history_long_response_chunked(
     asyncio.run(main_module.history(mock_ctx, bot_name="alfred"))
 
     assert mock_ctx.send.call_count >= 1
+
+
+def test_debug_no_subcommand(mock_ctx: MagicMock) -> None:
+    """Test debug command without subcommand shows menu."""
+    import asyncio
+
+    import vibe_bot.main as main_module
+
+    asyncio.run(main_module.debug(mock_ctx, subcommand=None))
+
+    mock_ctx.send.assert_called_once()
+    call_args = mock_ctx.send.call_args[0][0]
+    assert "Debug Menu" in call_args
+    assert "members" in call_args
+
+
+def test_debug_members_no_guild(mock_ctx: MagicMock) -> None:
+    """Test debug members command when channel has no guild."""
+    import asyncio
+
+    import vibe_bot.main as main_module
+
+    mock_ctx.channel.guild = None
+
+    asyncio.run(main_module.debug(mock_ctx, subcommand="members"))
+
+    mock_ctx.send.assert_called_once()
+    call_args = mock_ctx.send.call_args[0][0]
+    assert "No members found in this channel." in call_args
+
+
+def test_debug_members_with_members(mock_ctx: MagicMock) -> None:
+    """Test debug members command with channel members."""
+    import asyncio
+
+    import vibe_bot.main as main_module
+
+    mock_member = MagicMock()
+    mock_member.display_name = "Alice"
+    mock_member.name = "alice"
+    mock_member.nick = None
+    mock_member.global_name = None
+    mock_member.status = MagicMock(value="online")
+
+    mock_ctx.channel.guild.members = [mock_member]
+
+    asyncio.run(main_module.debug(mock_ctx, subcommand="members"))
+
+    assert mock_ctx.send.called
+    call_args = mock_ctx.send.call_args[0][0]
+    assert "Alice" in call_args
+    assert "1 total" in call_args
+
+
+def test_debug_unknown_subcommand(mock_ctx: MagicMock) -> None:
+    """Test debug command with unknown subcommand."""
+    import asyncio
+
+    import vibe_bot.main as main_module
+
+    asyncio.run(main_module.debug(mock_ctx, subcommand="unknown"))
+
+    mock_ctx.send.assert_called_once()
+    call_args = mock_ctx.send.call_args[0][0]
+    assert "Unknown debug sub-command" in call_args
+
+
+def test_debug_members_many_chunks(mock_ctx: MagicMock) -> None:
+    """Test debug members command with many members that exceed 1900 chars."""
+    import asyncio
+
+    import vibe_bot.main as main_module
+
+    mock_members = []
+    for i in range(50):
+        mock_member = MagicMock()
+        mock_member.display_name = f"User{i}_with_a_very_long_display_name"
+        mock_member.name = f"user{i}"
+        mock_member.nick = None
+        mock_member.global_name = None
+        mock_member.status = MagicMock(value="online")
+        mock_members.append(mock_member)
+
+    mock_ctx.channel.guild.members = mock_members
+
+    asyncio.run(main_module.debug(mock_ctx, subcommand="members"))
+
+    assert mock_ctx.send.call_count >= 2
+    first_chunk = mock_ctx.send.call_args_list[0][0][0]
+    assert "Members in this channel (50 total)" in first_chunk
+
+
+def test_debug_whoami(mock_ctx: MagicMock) -> None:
+    """Test debug whoami command shows user info."""
+    import asyncio
+
+    import vibe_bot.main as main_module
+
+    asyncio.run(main_module.debug(mock_ctx, subcommand="whoami"))
+
+    mock_ctx.send.assert_called_once()
+    call_args = mock_ctx.send.call_args[0][0]
+    assert "Username: testuser" in call_args
+    assert "User ID: 12345" in call_args
+    assert "Global Name: Test User" in call_args
+    assert "Nickname: tester" in call_args
+
+
+def test_debug_whoami_minimal(mock_ctx: MagicMock) -> None:
+    """Test debug whoami command with minimal user data."""
+    import asyncio
+
+    import vibe_bot.main as main_module
+
+    mock_ctx.author.global_name = None
+    mock_ctx.author.nick = None
+    mock_ctx.author.top_role.name = "@everyone"
+    mock_ctx.author.activities = []
+    mock_ctx.author.joined_at = None
+    mock_ctx.author.created_at = None
+
+    asyncio.run(main_module.debug(mock_ctx, subcommand="whoami"))
+
+    mock_ctx.send.assert_called_once()
+    call_args = mock_ctx.send.call_args[0][0]
+    assert "Username: testuser" in call_args
+    assert "User ID: 12345" in call_args
+    assert "Global Name" not in call_args
+    assert "Nickname" not in call_args
+    assert "Activities" not in call_args
+    assert "Joined" not in call_args
+
+
+def test_debug_tools(mock_ctx: MagicMock) -> None:
+    """Test debug tools command shows LLM tools."""
+    import asyncio
+
+    import vibe_bot.main as main_module
+
+    asyncio.run(main_module.debug(mock_ctx, subcommand="tools"))
+
+    mock_ctx.send.assert_called_once()
+    call_args = mock_ctx.send.call_args[0][0]
+    assert "LLM Tools" in call_args
+    assert "get_channel_members" in call_args
+    assert "members" in call_args.lower()
diff --git a/vibe_bot/tests/test_tools.py b/vibe_bot/tests/test_tools.py
index 6bcb22c..5a188ca 100644
--- a/vibe_bot/tests/test_tools.py
+++ b/vibe_bot/tests/test_tools.py
@@ -24,7 +24,7 @@ def test_get_channel_members_impl_returns_formatted_list() -> None:
     mock_member2.status = MagicMock(value="idle")
 
     mock_channel = MagicMock()
-    mock_channel.members = [mock_member1, mock_member2]
+    mock_channel.guild.members = [mock_member1, mock_member2]
 
     result = get_channel_members_impl(mock_channel)
 
@@ -38,7 +38,7 @@ def test_get_channel_members_impl_returns_formatted_list() -> None:
 def test_get_channel_members_impl_empty() -> None:
     """Test get_channel_members_impl with no members."""
     mock_channel = MagicMock()
-    mock_channel.members = []
+    mock_channel.guild.members = []
 
     result = get_channel_members_impl(mock_channel)
 
@@ -55,7 +55,7 @@ def test_get_channel_members_impl_with_global_name() -> None:
     mock_member.status = MagicMock(value="dnd")
 
     mock_channel = MagicMock()
-    mock_channel.members = [mock_member]
+    mock_channel.guild.members = [mock_member]
 
     result = get_channel_members_impl(mock_channel)
 
@@ -72,7 +72,7 @@ def test_get_channel_members_impl_no_status() -> None:
     mock_member.status = None
 
     mock_channel = MagicMock()
-    mock_channel.members = [mock_member]
+    mock_channel.guild.members = [mock_member]
 
     result = get_channel_members_impl(mock_channel)
 
@@ -83,8 +83,7 @@ def test_get_channel_members_impl_no_status() -> None:
 def test_get_channel_members_impl_exception() -> None:
     """Test get_channel_members_impl handles exceptions gracefully."""
     mock_channel = MagicMock()
-    mock_channel.members = None
-    type(mock_channel).members = property(
+    type(mock_channel.guild).members = property(
         lambda self: (_ for _ in ()).throw(Exception("test"))
     )
 
@@ -119,7 +118,7 @@ def test_get_channel_members_impl_sorted_by_display_name() -> None:
     mock_member_a.status = MagicMock(value="online")
 
     mock_channel = MagicMock()
-    mock_channel.members = [mock_member_z, mock_member_a]
+    mock_channel.guild.members = [mock_member_z, mock_member_a]
 
     result = get_channel_members_impl(mock_channel)
 
@@ -138,7 +137,7 @@ def test_get_channel_members_impl_no_nick_when_same_as_display() -> None:
     mock_member.status = MagicMock(value="online")
 
     mock_channel = MagicMock()
-    mock_channel.members = [mock_member]
+    mock_channel.guild.members = [mock_member]
 
     result = get_channel_members_impl(mock_channel)
 
@@ -179,3 +178,23 @@ def test_format_member_with_all_fields() -> None:
     assert "(nickname: Al)" in result
     assert "(global name: Alice Global)" in result
     assert "[online]" in result
+
+
+def test_get_channel_members_impl_no_guild() -> None:
+    """Test get_channel_members_impl when channel has no guild (e.g. DM)."""
+    mock_channel = MagicMock()
+    mock_channel.guild = None
+
+    result = get_channel_members_impl(mock_channel)
+
+    assert "No members found in this channel." in result
+
+
+def test_get_channel_members_impl_guild_members_none() -> None:
+    """Test get_channel_members_impl when guild.members is None."""
+    mock_channel = MagicMock()
+    mock_channel.guild.members = None
+
+    result = get_channel_members_impl(mock_channel)
+
+    assert "No members found in this channel." in result
diff --git a/vibe_bot/tools.py b/vibe_bot/tools.py
index 0e2c7fc..f8f936e 100644
--- a/vibe_bot/tools.py
+++ b/vibe_bot/tools.py
@@ -44,7 +44,7 @@ def get_channel_members_impl(channel: Any) -> str:
 
     """
     try:
-        members = channel.members
+        members = getattr(channel.guild, "members", None)
         if not members:
             return "No members found in this channel."
 
@@ -55,7 +55,7 @@ def get_channel_members_impl(channel: Any) -> str:
                 getattr(m, "display_name", "") or getattr(m, "name", "")
             ).lower(),
         ):
-            lines.append(f"  - {_format_member(member)}")
+            lines.append(f"- {_format_member(member)}")
 
         return "\n".join(lines)
     except Exception: