diff --git a/src/main/java/org/eolang/jeo/BytecodeIR.java b/src/main/java/org/eolang/jeo/BytecodeIR.java
index c0abe5093..afa88e16d 100644
--- a/src/main/java/org/eolang/jeo/BytecodeIR.java
+++ b/src/main/java/org/eolang/jeo/BytecodeIR.java
@@ -30,7 +30,7 @@
  * Intermediate representation of a class files which can be optimized from bytecode.
  *
  * @since 0.1.0
- * @todo 13:90min Implement BytecodeIR class.
+ * @todo #13:90min Implement BytecodeIR class.
  *  The class should implement IR interface and represent a class file.
  *  It should be able to read the class file and provide access to its bytecode.
  *  Also we have to define methods which we need from IR to provide future optimizations.
diff --git a/src/main/java/org/eolang/jeo/JeoMojo.java b/src/main/java/org/eolang/jeo/JeoMojo.java
index d5ea0a2cf..c030344d1 100644
--- a/src/main/java/org/eolang/jeo/JeoMojo.java
+++ b/src/main/java/org/eolang/jeo/JeoMojo.java
@@ -35,12 +35,6 @@
  * Goal which touches a timestamp file.
  *
  * @since 0.1.0
- * @todo #9:90min Implement the optimization skeleton.
- *  The optimization skeleton should be implemented without details. Just a sketch.
- *  The skeleton should contain the next steps:
- *  - Transpile all bytecode files to the eolang files (XMIR I guess).
- *  - Invoke some XMIR optimizations (dummy for now).
- *  - Transpile all XMIR files back to the bytecode.
  */
 @Mojo(name = "optimize", defaultPhase = LifecyclePhase.PROCESS_CLASSES)
 public final class JeoMojo extends AbstractMojo {
diff --git a/src/main/java/org/eolang/jeo/Optimization.java b/src/main/java/org/eolang/jeo/Optimization.java
index 4a6024115..cc97c17c5 100644
--- a/src/main/java/org/eolang/jeo/Optimization.java
+++ b/src/main/java/org/eolang/jeo/Optimization.java
@@ -36,7 +36,7 @@
  * The entrypoint class for the optimization.
  *
  * @since 0.1.0
- * @todo 13:90min Add unit tests for Optimization class.
+ * @todo #13:90min Add unit tests for Optimization class.
  *  The unit tests should cover the next cases:
  *  - The classes directory is empty.
  *  - The classes directory does not exist.
@@ -44,7 +44,7 @@
  *  - The classes directory has some classes and some subdirectories.
  *  - The classes directory has some classes and some garbage.
  *  When the unit tests are ready, remove that puzzle.
- * @todo 13:90min Implement back transformation to bytecode.
+ * @todo #13:90min Implement back transformation to bytecode.
  *  The Optimization class should transform the IRs back to bytecode.
  *  When the back transformation is ready, remove that puzzle.
  *  Don't forget to add unit tests for the back transformation.