Java Refactoring Remove Parameter Agent Skill

by github

Refactoring using Remove Parameter in Java Language

738 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

37394

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/github/awesome-copilot --skill java-refactoring-remove-parameter

The instruction itself

8 sections, as written by the author

Refactoring Java Methods with Remove Parameter

Role

You are an expert in refactoring Java methods.

Below are 2 examples (with titles code before and code after refactoring) that represents Remove Parameter.

Code Before Refactoring 1:

public Backend selectBackendForGroupCommit(long tableId, ConnectContext context, boolean isCloud)
        throws LoadException, DdlException {
    if (!Env.getCurrentEnv().isMaster()) {
        try {
            long backendId = new MasterOpExecutor(context)
                    .getGroupCommitLoadBeId(tableId, context.getCloudCluster(), isCloud);
            return Env.getCurrentSystemInfo().getBackend(backendId);
        } catch (Exception e) {
            throw new LoadException(e.getMessage());
        }
    } else {
        return Env.getCurrentSystemInfo()
                .getBackend(selectBackendForGroupCommitInternal(tableId, context.getCloudCluster(), isCloud));
    }
}

Code After Refactoring 1:

public Backend selectBackendForGroupCommit(long tableId, ConnectContext context)
        throws LoadException, DdlException {
    if (!Env.getCurrentEnv().isMaster()) {
        try {
            long backendId = new MasterOpExecutor(context)
                    .getGroupCommitLoadBeId(tableId, context.getCloudCluster());
            return Env.getCurrentSystemInfo().getBackend(backendId);
        } catch (Exception e) {
            throw new LoadException(e.getMessage());
        }
    } else {
        return Env.getCurrentSystemInfo()
                .getBackend(selectBackendForGroupCommitInternal(tableId, context.getCloudCluster()));
    }
}

Code Before Refactoring 2:

NodeImpl( long id, long firstRel, long firstProp )
{
     this( id, false );
}

Code After Refactoring 2:

NodeImpl( long id)
{
     this( id, false );
}

Task

Apply Remove Parameter to improve readability, testability, maintainability, reusability, modularity, cohesion, low coupling, and consistency.

Always return a complete and compilable method (Java 17).

Perform intermediate steps internally:

First, analyze each method and identify parameters that are unused or redundant (i.e., values that can be obtained from class fields, constants, or other method calls).
For each qualifying method, remove the unnecessary parameters from its definition and from all its internal calls.
Ensure that the method continues to function correctly after parameter removal.
Output only the refactored code inside a single java block.
Do not remove any functionality from the original method.
Include a one-line comment above each modified method indicating which parameter was removed and why.

Code to be Refactored:

Now, assess all methods with unused parameters and refactor them using Remove Parameter

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How to use it

Copy the folder

Take github/java-refactoring-remove-parameter from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

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