diff --git a/pixstrip-core/src/config.rs b/pixstrip-core/src/config.rs
new file mode 100644
index 0000000..3e14f47
--- /dev/null
+++ b/pixstrip-core/src/config.rs
@@ -0,0 +1 @@
+// Application configuration
diff --git a/pixstrip-core/src/error.rs b/pixstrip-core/src/error.rs
new file mode 100644
index 0000000..6d278a7
--- /dev/null
+++ b/pixstrip-core/src/error.rs
@@ -0,0 +1 @@
+// Error types
diff --git a/pixstrip-core/src/lib.rs b/pixstrip-core/src/lib.rs
index 99cfdd5..6871bbf 100644
--- a/pixstrip-core/src/lib.rs
+++ b/pixstrip-core/src/lib.rs
@@ -1,3 +1,10 @@
+pub mod config;
+pub mod error;
+pub mod operations;
+pub mod pipeline;
+pub mod preset;
+pub mod types;
+
 pub fn version() -> &'static str {
     env!("CARGO_PKG_VERSION")
 }
diff --git a/pixstrip-core/src/operations/mod.rs b/pixstrip-core/src/operations/mod.rs
new file mode 100644
index 0000000..4fdf0bd
--- /dev/null
+++ b/pixstrip-core/src/operations/mod.rs
@@ -0,0 +1 @@
+// Image processing operations
diff --git a/pixstrip-core/src/pipeline.rs b/pixstrip-core/src/pipeline.rs
new file mode 100644
index 0000000..a5b88f7
--- /dev/null
+++ b/pixstrip-core/src/pipeline.rs
@@ -0,0 +1 @@
+// Processing pipeline
diff --git a/pixstrip-core/src/preset.rs b/pixstrip-core/src/preset.rs
new file mode 100644
index 0000000..bf2e962
--- /dev/null
+++ b/pixstrip-core/src/preset.rs
@@ -0,0 +1 @@
+// Preset management
diff --git a/pixstrip-core/src/types.rs b/pixstrip-core/src/types.rs
new file mode 100644
index 0000000..2fe9693
--- /dev/null
+++ b/pixstrip-core/src/types.rs
@@ -0,0 +1 @@
+// Core domain types for image processing