diff --git a/README.md b/README.md
index 286b62a..5d8155a 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,25 @@ poetry install
 
 See [Tutorial](https://github.com/mobiusml/aana_sdk/blob/main/docs/tutorial.md) for more information on how to build your application.
 
+## Project structure
+
+```
+aana_app_project/             | top level source code directory for the project
+├── config/                   | various configs, including settings, deployments and endpoints
+│   ├── endpoints.py          | list of endpoints to deploy
+│   ├── deployments.py        | list of deployments (models) to deploy
+│   └── settings.py           | app settings
+├── core/                     | core models and functionality
+│   ├── models/               | data models
+│   └── prompts/              | prompt templates for LLMs
+├── deployments/              | custom deployments
+├── endpoints/                | endpoint classes for the app
+├── exceptions/               | custom exception classes
+├── utils/                    | various utility functionality
+└── app.py                    | main application file
+```
+
+
 ## Installation
 
 To install the project, follow these steps:
diff --git a/aana_app_project/models/__init__.py b/aana_app_project/core/models/__init__.py
similarity index 100%
rename from aana_app_project/models/__init__.py
rename to aana_app_project/core/models/__init__.py
diff --git a/aana_app_project/core/prompts/__init__.py b/aana_app_project/core/prompts/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/aana_app_project/core/prompts/loader.py b/aana_app_project/core/prompts/loader.py
new file mode 100644
index 0000000..5aeee8e
--- /dev/null
+++ b/aana_app_project/core/prompts/loader.py
@@ -0,0 +1,25 @@
+from jinja2 import Environment, PackageLoader, Template
+
+
+def get_prompt_template(name: str) -> Template:
+    """Load a prompt template by name.
+
+    Use this function to load a prompt templates for LLMs:
+
+    ```python
+    from aana_app_project.prompts.loader import get_prompt_template
+
+    template = get_prompt_template("test")
+    prompt = template.render(your_variable="your_value")
+    ```
+
+    Args:
+        name (str): The name of the prompt template.
+
+    Returns:
+        Template: The prompt template.
+    """
+    env = Environment(loader=PackageLoader(
+        "aana_app_project", "core", "prompts"))
+    template = env.get_template(f"{name}.j2")
+    return template
diff --git a/aana_app_project/core/prompts/test.j2 b/aana_app_project/core/prompts/test.j2
new file mode 100644
index 0000000..ce86fac
--- /dev/null
+++ b/aana_app_project/core/prompts/test.j2
@@ -0,0 +1 @@
+Define your prompts for LLMs here. Use jinja2 templating to include variables like {{ your_variable }}.
\ No newline at end of file
diff --git a/aana_app_project/exceptions/core.py b/aana_app_project/exceptions/core.py
new file mode 100644
index 0000000..9693de9
--- /dev/null
+++ b/aana_app_project/exceptions/core.py
@@ -0,0 +1 @@
+from aana.exceptions.core import BaseException