To check what has already been done, but I also keep a TODO.md with the items that need to be done for each phase, and a CHANGELOG.md the LLM can always read.

To check for hallucinations: is the new code passing an argument for a parameter that doesn’t exist or has a different type, or calling a function that isn’t there.

The next step for me is creating graphs for dependencies, so the LLM can detect hallucinations on them.