Catch errors as they happen, not after
Guard mode runs background checks while you work. Type errors, broken builds, lint warnings. Caught immediately instead of discovered an hour later.
The normal workflow: write code, build the project, discover errors, fix them, build again. Guard mode shortens this by checking continuously in the background. Errors surface the moment they're introduced, not after you've built three more things on top of a broken foundation.
If you change one file and it breaks three others, you want to know that immediately. Not after you've also changed those three other files for different reasons and now can't tell which change caused which error. Early detection means simpler fixes.
Turn on your project's error checking to run automatically when files change. Most modern development tools support this. The key is that errors should interrupt you immediately rather than accumulating silently.
When an error appears, fix it before moving on. Don't stack changes on top of broken code.
Any session where you're changing multiple files. Single-file edits don't need it because the feedback loop is already short. But the moment your changes span across files, guard mode pays for itself.
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