diff --git a/config.py b/config.py
index eabd8a0..287ffec 100644
--- a/config.py
+++ b/config.py
@@ -5,7 +5,7 @@ load_dotenv()
 
 # LLM Configuration
 LLM_BASE_URL          = os.getenv("LLM_BASE_URL", default="http://localhost:11434/v1")
-LLM_MODEL             = os.getenv("LLM_MODEL", default="deepseek-r1:8b")
+LLM_MODEL             = os.getenv("LLM_MODEL", default="granite4.1:8b")
 LLM_API_KEY           = os.getenv("LLM_API_KEY", default="ollama")
 LLM_TIMEOUT           = int(os.getenv("LLM_TIMEOUT", default="600"))
 # Agent Configuration
diff --git a/hendrik.py b/hendrik.py
index 7b6f14a..ae7eddc 100644
--- a/hendrik.py
+++ b/hendrik.py
@@ -1,4 +1,4 @@
-import os, sys, json
+import os, sys, json, tty, termios
 import config
 from llm_client import LLMClient
 from tools import coder
@@ -13,25 +13,79 @@ tools_definition = [
     gadget.tools_mapping( coder.schema_git_operation,  coder.git_operation  ),
 ]
 
-TOOLS          = [t["schema"]              for t in tools_definition] # Schemas
-TOOL_HANDLERS  = {t["name"]: t["handler"]  for t in tools_definition} # Map
+TOOLS          = gadget.tool_schemas(tools_definition)
+TOOL_HANDLERS  = gadget.tool_handlers(tools_definition)
 
-SYSTEM_PROMPT = """You are a coding agent that assists with software engineering tasks. You have access to the following tools:
 
-1. read_file: Read file contents with line numbers
-2. write_file: Write content to a file (overwrites existing)
-3. edit_file: Replace text in a file
-4. run_bash: Execute bash commands
-5. search_code: Search for files (glob) or file contents (regex)
-6. git_operation: Run git commands
+def interactive_input():
+    fd = sys.stdin.fileno()
+    old = termios.tcgetattr(fd)
 
-Use tools by returning tool calls when needed. After receiving tool results, continue your reasoning. When you have the final answer, return it as plain text without tool calls."""
+    print()
+    print("\u2500" * 50)
+    print("Hendrik AI Agent - Interactive Mode")
+    print("\u2500" * 50)
+    print(f"Workspace: {os.getcwd()}")
+    print("\u2500" * 50)
+    print("[Ctrl+W] Change workspace  |  :workspace <dir>  |  [Ctrl+D] Submit")
+    print("\u2500" * 50)
 
-def agent_loop(user_query, llm_client):
-    messages = [
-        {"role": "system"  , "content": SYSTEM_PROMPT  },
-        {"role": "user"    , "content": user_query     }
-    ]
+    buffer = bytearray()
+    try:
+        tty.setraw(fd)
+        while True:
+            ch = os.read(fd, 1)
+            if ch == b'\x03':  # Ctrl+C → exit
+                termios.tcsetattr(fd, termios.TCSADRAIN, old)
+                print("\r\nExiting.")
+                sys.exit(0)
+            elif ch == b'\x04':  # Ctrl+D → submit
+                break
+            elif ch == b'\x17':  # Ctrl+W → change workspace
+                termios.tcsetattr(fd, termios.TCSADRAIN, old)
+                print("\r\n", end="")
+                ws = input("Workspace directory: ").strip()
+                if ws:
+                    resolved = os.path.abspath(ws)
+                    if not os.path.isdir(resolved):
+                        print(f"Error: '{resolved}' is not a valid directory")
+                    else:
+                        os.chdir(resolved)
+                        print(f"\u2192 Workspace changed to {os.getcwd()}")
+                return interactive_input()
+            elif ch in (b'\r', b'\n'):  # Enter
+                buffer.extend(b'\n')
+                sys.stdout.buffer.write(b'\r\n')
+                sys.stdout.flush()
+            elif ch == b'\x7f':  # Backspace
+                if buffer:
+                    buffer.pop()
+                    sys.stdout.buffer.write(b'\b \b')
+                    sys.stdout.flush()
+            elif ch >= b' ':  # Printable characters
+                buffer.extend(ch)
+                sys.stdout.buffer.write(ch)
+                sys.stdout.flush()
+    finally:
+        termios.tcsetattr(fd, termios.TCSADRAIN, old)
+
+    full_query = buffer.decode('utf-8', errors='replace').strip()
+
+    if full_query.startswith(':workspace '):
+        ws = full_query[11:].strip()
+        resolved = os.path.abspath(ws)
+        if not os.path.isdir(resolved):
+            print(f"Error: '{resolved}' is not a valid directory")
+            return interactive_input()
+        os.chdir(resolved)
+        print(f"\u2192 Workspace changed to {os.getcwd()}")
+        return interactive_input()
+
+    return full_query
+
+
+def agent_loop(user_query, messages, llm_client):
+    messages.append({"role": "user", "content": user_query})
     for _ in range(config.AGENT_MAX_ITERATIONS):
         response = llm_client.chat(messages, tools=TOOLS)
         if response.tool_calls:
@@ -48,6 +102,8 @@ def agent_loop(user_query, llm_client):
                 if not handler:
                     result = f"Tool {tool_name} not found"
                 else:
+                    args_display = ", ".join(f"{k}={v!r}" for k, v in tool_args.items())
+                    print(f"  \u2192 {tool_name}({args_display})")
                     try:
                         if tool_name == "search_code":
                             result = handler(
@@ -67,23 +123,67 @@ def agent_loop(user_query, llm_client):
                     "content": str(result)
                 })
         else:
-            return response.content
-    return "Max iterations reached without final answer."
+            messages.append({"role": "assistant", "content": response.content})
+            return response.content, messages
+    msg = "Max iterations reached without final answer."
+    messages.append({"role": "assistant", "content": msg})
+    return msg, messages
+
 
 def main():
-    llm_client = LLMClient(base_url=config.LLM_BASE_URL, model=config.LLM_MODEL, api_key=config.LLM_API_KEY)
-    if len(sys.argv) > 1:
-        user_query = " ".join(sys.argv[1:])
-    else:
-        print("Enter your query (Ctrl+D to submit):")
-        user_query = sys.stdin.read().strip()
-    if not user_query:
-        print("No query provided.")
+    workspace = None
+    query_parts = []
+    i = 1
+    while i < len(sys.argv):
+        if sys.argv[i] in ('-w', '--workspace') and i + 1 < len(sys.argv):
+            workspace = sys.argv[i + 1]
+            i += 2
+        else:
+            query_parts.append(sys.argv[i])
+            i += 1
+
+    if workspace:
+        resolved = os.path.abspath(workspace)
+        if not os.path.isdir(resolved):
+            print(f"Error: '{resolved}' is not a valid directory")
+            sys.exit(1)
+        os.chdir(resolved)
+
+    llm_client = LLMClient(
+        base_url=config.LLM_BASE_URL,
+        model=config.LLM_MODEL,
+        api_key=config.LLM_API_KEY
+    )
+
+    messages = None
+
+    if query_parts:
+        user_query = ' '.join(query_parts)
+        if not user_query:
+            print("No query provided.")
+            return
+        messages = [{"role": "system", "content": gadget.build_system_prompt(tools_definition)}]
+        print("Thinking...")
+        final_answer, messages = agent_loop(user_query, messages, llm_client)
+        print("\nFinal Answer:")
+        print(final_answer)
         return
-    print("Thinking...")
-    final_answer = agent_loop(user_query, llm_client)
-    print("\nFinal Answer:")
-    print(final_answer)
+
+    while True:
+        user_query = interactive_input()
+        if not user_query:
+            break
+        if user_query.lower() in ('/exit', '/quit'):
+            break
+
+        if messages is None:
+            messages = [{"role": "system", "content": gadget.build_system_prompt(tools_definition)}]
+
+        print("Thinking...")
+        final_answer, messages = agent_loop(user_query, messages, llm_client)
+        print("\nFinal Answer:")
+        print(final_answer)
+
 
 if __name__ == "__main__":
     main()
diff --git a/sample-prompt b/sample-prompt
deleted file mode 100644
index 2964cc3..0000000
--- a/sample-prompt
+++ /dev/null
@@ -1,6 +0,0 @@
-Buatkan aku permainan menebak angka dadu dengan python dengan nama `dice.py`.
-Pemain dapat melihat angka dadu di awal permainan.
-Pemain akan menebak apakah angka selanjutnya lebih rendah atau lebih tinggi.
-Jika tebakan pemain benar maka score bertambah 10. Jika salah maka score di reset jadi 0.
-Tampilkan info `Score` dan `Dice`. Input hanya ada `low`, `high`, dan `quit`.
-Permainan akan terus berlanjut sampai pemain keluar dari permainan.
\ No newline at end of file
diff --git a/scripts/gadget.py b/scripts/gadget.py
index fd70fde..53b6fef 100644
--- a/scripts/gadget.py
+++ b/scripts/gadget.py
@@ -1,4 +1,37 @@
+import os
+
+
 def tools_mapping(schema, handler, name=None):
     tool_name = name or schema["function"]["name"]
     return {"name": tool_name, "schema": schema, "handler": handler}
 
+
+def tool_schemas(tools_definition):
+    return [t["schema"] for t in tools_definition]
+
+
+def tool_handlers(tools_definition):
+    return {t["name"]: t["handler"] for t in tools_definition}
+
+
+def build_system_prompt(tools_definition):
+    lines = [
+        "You are a coding agent that assists with software engineering tasks. "
+        "You have access to the following tools:",
+        ""
+    ]
+    for i, tool in enumerate(tools_definition, 1):
+        name = tool["name"]
+        desc = tool["schema"]["function"]["description"]
+        lines.append(f"{i}. {name}: {desc}")
+    lines.extend([
+        "",
+        "Use tools by returning tool calls when needed. After receiving tool "
+        "results, continue your reasoning. When you have the final answer, "
+        "return it as plain text without tool calls.",
+        "",
+        f"Your workspace directory is: {os.getcwd()}. "
+        "All file operations are relative to this directory."
+    ])
+    return "\n".join(lines)
+