diff --git a/modules/programs/claude-code.nix b/modules/programs/claude-code.nix
index e8644394..6464ea15 100644
--- a/modules/programs/claude-code.nix
+++ b/modules/programs/claude-code.nix
@@ -156,6 +156,36 @@ in
       };
     };
 
+    memory = {
+      text = lib.mkOption {
+        type = lib.types.nullOr lib.types.lines;
+        default = null;
+        description = ''
+          Inline memory content for CLAUDE.md.
+          This option is mutually exclusive with memory.source.
+        '';
+        example = ''
+          # Project Memory
+
+          ## Current Task
+          Implementing enhanced claude-code module for home-manager.
+
+          ## Key Files
+          - claude-code.nix: Main module implementation
+        '';
+      };
+
+      source = lib.mkOption {
+        type = lib.types.nullOr lib.types.path;
+        default = null;
+        description = ''
+          Path to a file containing memory content for CLAUDE.md.
+          This option is mutually exclusive with memory.text.
+        '';
+        example = lib.literalExpression "./claude-memory.md";
+      };
+    };
+
     mcpServers = lib.mkOption {
       type = lib.types.attrsOf jsonFormat.type;
       default = { };
@@ -203,6 +233,10 @@ in
         assertion = cfg.mcpServers == { } || cfg.package != null;
         message = "`programs.claude-code.package` cannot be null when `mcpServers` is configured";
       }
+      {
+        assertion = !(cfg.memory.text != null && cfg.memory.source != null);
+        message = "Cannot specify both `programs.claude-code.memory.text` and `programs.claude-code.memory.source`";
+      }
     ];
 
     programs.claude-code.finalPackage =
@@ -243,6 +277,10 @@ in
             }
           );
         };
+
+        ".claude/CLAUDE.md" = lib.mkIf (cfg.memory.text != null || cfg.memory.source != null) (
+          if cfg.memory.text != null then { text = cfg.memory.text; } else { source = cfg.memory.source; }
+        );
       }
       // lib.mapAttrs' (
         name: content:
diff --git a/tests/modules/programs/claude-code/assertion.nix b/tests/modules/programs/claude-code/assertion.nix
index b1d5f042..5e343e40 100644
--- a/tests/modules/programs/claude-code/assertion.nix
+++ b/tests/modules/programs/claude-code/assertion.nix
@@ -14,9 +14,16 @@
         ];
       };
     };
+
+    # assert fail: cannot set text and source at the same time.
+    memory = {
+      text = "Some text content";
+      source = ./expected-memory.md;
+    };
   };
 
   test.asserts.assertions.expected = [
     "`programs.claude-code.package` cannot be null when `mcpServers` is configured"
+    "Cannot specify both `programs.claude-code.memory.text` and `programs.claude-code.memory.source`"
   ];
 }
diff --git a/tests/modules/programs/claude-code/default.nix b/tests/modules/programs/claude-code/default.nix
index 3c98cad8..6ec0ef97 100644
--- a/tests/modules/programs/claude-code/default.nix
+++ b/tests/modules/programs/claude-code/default.nix
@@ -3,4 +3,6 @@
   claude-code-full-config = ./full-config.nix;
   claude-code-mcp = ./mcp.nix;
   claude-code-assertion = ./assertion.nix;
+  claude-code-memory-management = ./memory-management.nix;
+  claude-code-memory-from-source = ./memory-from-source.nix;
 }
diff --git a/tests/modules/programs/claude-code/expected-memory.md b/tests/modules/programs/claude-code/expected-memory.md
new file mode 100644
index 00000000..e6daa429
--- /dev/null
+++ b/tests/modules/programs/claude-code/expected-memory.md
@@ -0,0 +1,8 @@
+# Project Memory
+
+## Current Task
+Test implementation of memory management.
+
+## Key Context
+- This is a test configuration
+- Memory should be created at ~/.claude/CLAUDE.md
diff --git a/tests/modules/programs/claude-code/memory-from-source.nix b/tests/modules/programs/claude-code/memory-from-source.nix
new file mode 100644
index 00000000..0a188018
--- /dev/null
+++ b/tests/modules/programs/claude-code/memory-from-source.nix
@@ -0,0 +1,13 @@
+{
+  programs.claude-code = {
+    enable = true;
+    memory = {
+      source = ./expected-memory.md;
+    };
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.claude/CLAUDE.md
+    assertFileContent home-files/.claude/CLAUDE.md ${./expected-memory.md}
+  '';
+}
diff --git a/tests/modules/programs/claude-code/memory-management.nix b/tests/modules/programs/claude-code/memory-management.nix
new file mode 100644
index 00000000..10c7b3e3
--- /dev/null
+++ b/tests/modules/programs/claude-code/memory-management.nix
@@ -0,0 +1,22 @@
+{
+  programs.claude-code = {
+    enable = true;
+    memory = {
+      text = ''
+        # Project Memory
+
+        ## Current Task
+        Test implementation of memory management.
+
+        ## Key Context
+        - This is a test configuration
+        - Memory should be created at ~/.claude/CLAUDE.md
+      '';
+    };
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.claude/CLAUDE.md
+    assertFileContent home-files/.claude/CLAUDE.md ${./expected-memory.md}
+  '';
+}