diff --git a/Dockerfile b/Dockerfile
index d9c64f2..b36463c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,9 +4,8 @@ RUN pip install uv
 
 WORKDIR /app
 
-COPY pyproject.toml .
-RUN uv sync --no-dev
-
 COPY . .
 
+RUN uv sync --no-dev
+
 CMD ["uv", "run", "xtrm-agent", "serve"]
diff --git a/agents/coder.md b/agents/coder.md
index 2cc51bc..1b790fc 100644
--- a/agents/coder.md
+++ b/agents/coder.md
@@ -1,7 +1,7 @@
 ---
 name: coder
-provider: anthropic
-model: claude-sonnet-4-5-20250929
+provider: kimi
+model: nvidia_nim/moonshotai/kimi-k2.5
 temperature: 0.3
 max_iterations: 30
 tools:
diff --git a/agents/researcher.md b/agents/researcher.md
index 35895f6..62692c3 100644
--- a/agents/researcher.md
+++ b/agents/researcher.md
@@ -1,7 +1,7 @@
 ---
 name: researcher
 provider: deepseek
-model: deepseek/deepseek-chat-v3.1
+model: nvidia_nim/deepseek-ai/deepseek-v3.1
 temperature: 0.5
 max_iterations: 20
 tools:
diff --git a/agents/reviewer.md b/agents/reviewer.md
index 2f9b086..509e71b 100644
--- a/agents/reviewer.md
+++ b/agents/reviewer.md
@@ -1,7 +1,7 @@
 ---
 name: reviewer
-provider: anthropic
-model: claude-sonnet-4-5-20250929
+provider: kimi
+model: nvidia_nim/moonshotai/kimi-k2.5
 temperature: 0.2
 max_iterations: 15
 tools:
diff --git a/compose.yaml b/compose.yaml
index 740e97e..2485d22 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -4,10 +4,7 @@ services:
     container_name: xtrm-agent
     restart: unless-stopped
     environment:
-      - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY}
-      - DEEPSEEK_API_KEY=${DEEPSEEK_API_KEY}
-      - OPENROUTER_API_KEY=${OPENROUTER_API_KEY}
-      - MINIMAX_API_KEY=${MINIMAX_API_KEY}
+      - NVIDIA_NIM_API_KEY=${NVIDIA_NIM_API_KEY}
       - DISCORD_BOT_TOKEN=${DISCORD_BOT_TOKEN}
     volumes:
       - ./config.yaml:/app/config.yaml:ro
diff --git a/config.yaml b/config.yaml
index 9da159b..4794677 100644
--- a/config.yaml
+++ b/config.yaml
@@ -1,27 +1,25 @@
 llm:
   providers:
-    anthropic:
-      model: claude-sonnet-4-5-20250929
-      max_tokens: 8192
-    deepseek:
-      provider: litellm
-      model: deepseek/deepseek-chat-v3.1
     kimi:
       provider: litellm
-      model: openrouter/moonshotai/kimi-k2.5
+      model: nvidia_nim/moonshotai/kimi-k2.5
+    deepseek:
+      provider: litellm
+      model: nvidia_nim/deepseek-ai/deepseek-v3.1
     minimax:
       provider: litellm
-      model: minimax/MiniMax-M2.1
+      model: nvidia_nim/minimaxai/minimax-m2.1
 
 channels:
   cli:
     enabled: true
     default_agent: coder
   discord:
-    enabled: false
+    enabled: true
     token_env: DISCORD_BOT_TOKEN
     default_agent: coder
-    allowed_users: []
+    allowed_users:
+      - "1367816056244273243"
 
 tools:
   workspace: ./data
@@ -30,10 +28,9 @@ tools:
     - list_dir
     - web_fetch
     - delegate
-  require_approval:
-    - bash
     - write_file
     - edit_file
+    - bash
 
 mcp_servers: {}
 
diff --git a/xtrm_agent/channels/discord.py b/xtrm_agent/channels/discord.py
index 61733a3..5541e33 100644
--- a/xtrm_agent/channels/discord.py
+++ b/xtrm_agent/channels/discord.py
@@ -45,16 +45,10 @@ class DiscordChannel(BaseChannel):
             if message.author.bot:
                 return
 
-            # Check allowlist
+            # Check allowlist — if set, only respond to listed users
             if self.allowed_users and str(message.author.id) not in self.allowed_users:
                 return
 
-            # Only respond to mentions or DMs
-            is_dm = isinstance(message.channel, discord.DMChannel)
-            is_mentioned = self.client.user in message.mentions if self.client.user else False
-            if not is_dm and not is_mentioned:
-                return
-
             content = message.content
             # Strip bot mention from content
             if self.client.user:
diff --git a/xtrm_agent/engine.py b/xtrm_agent/engine.py
index b0c4a51..e3eed59 100644
--- a/xtrm_agent/engine.py
+++ b/xtrm_agent/engine.py
@@ -7,6 +7,8 @@ from typing import Any
 from loguru import logger
 
 from xtrm_agent.config import AgentFileConfig
+import json
+
 from xtrm_agent.llm.provider import LLMProvider, LLMResponse
 from xtrm_agent.tools.approval import ApprovalEngine
 from xtrm_agent.tools.registry import ToolRegistry
@@ -100,7 +102,7 @@ class Engine:
                 {
                     "id": tc.id,
                     "type": "function",
-                    "function": {"name": tc.name, "arguments": tc.arguments},
+                    "function": {"name": tc.name, "arguments": json.dumps(tc.arguments)},
                 }
                 for tc in response.tool_calls
             ]