refactor-planner

name	refactor-planner
description	Clarify the scope, objectives, and constraints of the refactor request first, then generate a refactoring plan for the refactor request. Use this skill when the user submits a refactor request to refactor existing functionality, code issue fix request or code improvement request.

- User submits a refactor request to refactor existing functionalities - User submits a code issue fix request - User submits a code improvement request

The capabilities section describes additional capabilities that you can refer to.

- Gather relevant information from the codebase, knowledge base, and user input to clearly define the refactor request. - Identify and clarify any ambiguous terms or implicit assumptions to ensure proper understanding. - Ask questions to the user to refine and narrow down the focus of the refactor request as needed. - Present a structured summary of the refactor request to the user and request confirmation or refinements. - Recognize when the full TDD cycle may be adapted or streamlined based on the refactoring type: - **Simple cleanups** (removing unused imports, fixing formatting): May skip test creation if existing tests provide adequate coverage - **Type improvements** (adding/refining TypeScript types): Focus on type-checking validation rather than test-first approach - **Documentation-only changes**: No test cycle needed, validate with linting only - **Code organization** (file moves, renames): Existing tests should pass unchanged - **Complex logic changes**: Always follow full TDD cycle for safety - When adapting the approach, always ensure existing tests pass before and after changes - Document the rationale for adapting the TDD approach in the plan - **Validate Baseline**: Run existing tests, linting, and type-checking to ensure the codebase is in a clean state before refactoring begins. - Break down the refactor request into specific, measurable objectives and clearly defined constraints. - Identify and map dependencies between objectives to establish an efficient and logical refactoring sequence. - **Consolidate Steps**: Group related objectives together when they share context or can be tested together, reducing the total step count while maintaining clarity. - Create a detailed step-by-step refactor plan following the TDD approach. For each objective, the steps should include: - **Write Focused Tests**: Create precise unit tests targeting the specific refactoring objective, ensuring comprehensive coverage of all scenarios, edge cases, and invalid inputs. - **Confirm Test Failure**: Execute the tests to verify they fail initially, validating that the tests correctly identify the current code behavior before refactoring begins. - **Refactor Code**: Modify the minimum amount of code necessary to pass the tests while achieving the refactoring objective, avoiding over-engineering or introducing unrelated changes. - **Verify Refactor**: Re-run all tests to confirm the refactored code passes successfully. Debug and refine as necessary to ensure correctness. - **Clean Up Unused Code**: Remove any obsolete or redundant code that is no longer needed after the refactor. - **Clean Up Tests**: Update or remove tests that are no longer relevant due to the refactor, ensuring the test suite remains accurate and effective. - **Verify Cleanup**: Re-run all tests to ensure that the cleanup process has not introduced any regressions or issues. - **Validate Linting, Formatting and Type Checking**: Run linting, formatting and type checking tools to ensure code quality and adherence to coding standards. - Ensure the total number of steps in the plan is manageable and does not exceed 20 steps. - Summarize the complete plan to the user. For example: """ To complete the refactoring request of [refactor request summary], the plan is as follows: - Step 1: Validate Baseline (run existing tests, lint, type-check) - Step 2: Write Focused Tests for refactor objective A - Step 3: Confirm Test Failure for refactor objective A - Step 4: Refactor Code for refactor objective A - Step 5: Verify Refactor for refactor objective A - Step 6: Clean Up Unused Code for refactor objective A - Step 7: Clean Up Tests for refactor objective A - Step 8: Verify Cleanup for refactor objective A - Step 9: Validate Linting, Formatting and Type Checking for refactor objective A - Step 10: Write Focused Tests for refactor objective B - Step 11: Confirm Test Failure for refactor objective B - Step 12: Refactor Code for refactor objective B - Step 13: Verify Refactor for refactor objective B - Step 14: Clean Up Unused Code for refactor objective B - Step 15: Clean Up Tests for refactor objective B - Step 16: Verify Cleanup for refactor objective B - Step 17: Validate Linting, Formatting and Type Checking for refactor objective B - ... I will apply **plan-executor** skill to refactor the code step by step as outlined. """

When you need specific examples to understand how to apply the refactoring planning approach, load the relevant example file from the examples folder:

• Component Splitting: When refactoring involves breaking down large components into smaller, focused ones, read examples/component-splitting.md
• Type Improvements: When refactoring involves adding or improving TypeScript type annotations, read examples/type-improvements.md
• Hook Extraction: When refactoring involves extracting logic into custom hooks, read examples/hook-extraction.md

Only load example files when they are directly relevant to the current refactoring task to minimize context size.

The rules section outlines decision criteria that determine which capabilities to apply based on the current context and user inputs.

If the user submits a refactoring request, apply the defining-refactor-request capability to clarify the scope, objectives, and constraints of the refactor request. After defining the refactor request, apply the adapting-tdd-approach capability to evaluate whether to adapt tdd approach based on the refactoring type and complexity. Apply the refactor-planning capability to generate a detailed refactor plan, incorporating baseline validation and step consolidation strategies. Always check lint and type check together when fixing lint or type check issue