APPENDIX H: RESUME PORTFOLIO BUILDING CAPSTONE PROJECTS

CHECKPOINTS Checkpoint 1, after step 13: the gate allows a path inside workspace and refuses the climbing-dots path. Checkpoint 2, after step 16: a tool runs on its own and returns real data. Checkpoint 3, after step 23: a full run completes and the log tells the story of the run in order. Checkpoint 4, after step 26: the sneaky request was refused and the secret file stayed secret. Checkpoint 5, after step 32: all three automated tests pass, and shrinking the step limit makes the harness stop cleanly. COMMON MISTAKES AND HOW TO FIX THEM Mistake: IndentationError when you run a file. Fix: Python needs the spaces at the start of each line exactly as shown, so retype the lines using four spaces per level and do not mix tabs with spaces. Mistake: ModuleNotFoundError saying there is no module named gate. Fix: you opened the terminal in the wrong folder, so close it and open a terminal inside project1_tool_agent. Mistake: FileNotFoundError for a note. Fix: check that the notes are inside the folder named workspace and that their names end in .txt. Mistake: the sneaky run shows no blocked event. Fix: make sure the task sentence contains the word sneaky exactly, and make sure that secret.txt exists outside workspace. Mistake: a test fails because old output remains. Fix: delete output/summary.txt and run_log.jsonl, then run the tests again.