Improve caching pipeline logging clarity

- Enhanced logging in cache_pipeline.py to clearly show which run uses cache
- Added ASCII separators to visually distinguish between Run 1 and Run 2
- Simplified step logging to focus on the key concept
- Added explanatory note highlighting that cached steps are skipped entirely
- Updated utils.py separator width for consistency

These changes make it much clearer to students when caching is happening and how it affects pipeline execution.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: strickvl

pipelines/caching/cache_pipeline.py

@@ -11,9 +11,8 @@
 
 @step(enable_cache=True)
 def slow_step() -> Annotated[int, "answer"]:
-    logger.info("Starting slow computation (3 seconds)...")
+    logger.info("🔄 Actually computing result... (sleeping 3 seconds)")
     time.sleep(3)
-    logger.info("Computation completed!")
     return 42
 
 
@@ -23,10 +22,17 @@ def cache_pipeline():
 
 
 if __name__ == "__main__":
-    logger.info("First run - will take ~3 seconds")
-    cache_pipeline()  # first run ~3 s
-
-    logger.info("Second run - should be instant (cache hit)")
-    cache_pipeline()  # second run instant (cache hit)
+    logger.info("\n" + "="*60)
+    logger.info(">>> RUN 1: First execution (no cache available)")
+    logger.info("="*60)
+    cache_pipeline()
+
+    logger.info("\n" + "="*60)
+    logger.info(">>> RUN 2: Second execution (cache should be used)")
+    logger.info("="*60)
+    cache_pipeline()
+    
+    logger.info("\n💡 Notice: The step's log message only appears in Run 1!")
+    logger.info("   In Run 2, the step was skipped entirely due to caching.")
 
     log_dashboard_urls("cache_pipeline")

utils.py

@@ -19,9 +19,9 @@ def log_dashboard_urls(pipeline_name: str):
     )
     dashboard_url = f"{base_url}/runs/{run.id}"
 
-    logger.info("\n" + "=" * 50)
+    logger.info("\n" + "=" * 60)
     logger.info("✅ Pipeline execution complete!")
     logger.info(f"🌐 View pipeline in dashboard: {base_url}/pipelines/{pipeline_name}")
     logger.info(f"🌐 View this run: {dashboard_url}")
     logger.info(f"🌐 View all artifacts: {base_url}/artifacts")
-    logger.info("=" * 50)
+    logger.info("=" * 60)