Refactor code in isolated git worktrees with regression test validation.
npx skills add https://github.com/Ynakatsuka/dotfiles --skill refactor-task
Please help me install this Agent Skill. Skill: refactor-task Source: https://github.com/Ynakatsuka/dotfiles/tree/main/dot_claude/skills/refactor-task Command: npx skills add https://github.com/Ynakatsuka/dotfiles --skill refactor-task
Refactoring tasks maintain external behavior by enforcing regression tests, ensuring code changes do not alter how the software behaves.
Create a new git worktree branch dedicated to the refactor, so changes are isolated from the main branch. Run the baseline test suite to establish the current behavior. Make small, incremental refactor changes and commit after each successful test. Run the full regression suite again to verify that behavior remains unchanged. If tests fail, revert the last change and investigate, then retry. When complete, delete the worktree and merge the changes back to main.
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To refactor code safely, you should isolate changes in a dedicated git worktree, run baseline tests before editing, apply incremental updates, and validate post-refactor tests to enforce behavioral equivalence.
Regression testing verifies behavioral equivalence by comparing baseline test results against post-refactor test results, ensuring that extracting functions or reorganizing modules does not alter the external software contracts.
Create a dedicated git worktree branch to isolate incremental refactoring changes from your main branch, allowing you to apply small updates, commit after each successful test, and revert easily if tests fail.
The process involves creating a worktree, running baseline tests, making incremental module reorganization changes, running the full regression suite, reverting on failure, and merging completed changes back to main.
Running baseline tests before extracting functions or splitting classes establishes the current external behavior, providing a definitive comparison point to verify that your incremental refactoring changes maintain behavioral equivalence.
When regression tests fail after an incremental codebase refactor, you should revert the last change, investigate the cause of the behavioral discrepancy, and retry the refactoring step to preserve external contracts.
GadaaLabsCreate isolated git worktrees for feature development.
WesleyMFrederickCreate a fresh git worktree with verified tests and dependencies.
PaulKinlanRun full test suites and compare results against a baseline to detect regressions.
ngxtmConfigures TypeScript projects with linting, formatting, and testing standards for CI/CD workflows.
