Agent skill

Code Repair Generation Combo

Automatically repair buggy code and generate comprehensive tests for Python, Java, and C++ programs.

Apache-2.0Auto-check passedDevelopment

Install Code Repair Generation Combo

skills CLI

$ npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install ArabelaTso/Skills-4-SE code-repair-generation-combo --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/ArabelaTso/Skills-4-SE.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/code-repair-generation-combo .claude/skills/code-repair-generation-combo && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "code-repair-generation-combo" agent skill from https://github.com/ArabelaTso/Skills-4-SE/tree/main/skills/code-repair-generation-combo into .claude/skills/code-repair-generation-combo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-repair-generation-combo", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/ArabelaTso/Skills-4-SE/tree/main/skills/code-repair-generation-combo

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install ArabelaTso/Skills-4-SE code-repair-generation-combo --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ArabelaTso/Skills-4-SE.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/code-repair-generation-combo .agents/skills/code-repair-generation-combo && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "code-repair-generation-combo" agent skill from https://github.com/ArabelaTso/Skills-4-SE/tree/main/skills/code-repair-generation-combo into .agents/skills/code-repair-generation-combo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-repair-generation-combo", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install ArabelaTso/Skills-4-SE code-repair-generation-combo --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ArabelaTso/Skills-4-SE.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/code-repair-generation-combo .cursor/skills/code-repair-generation-combo && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "code-repair-generation-combo" agent skill from https://github.com/ArabelaTso/Skills-4-SE/tree/main/skills/code-repair-generation-combo into .cursor/skills/code-repair-generation-combo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-repair-generation-combo", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/ArabelaTso/Skills-4-SE.git --path skills/code-repair-generation-combo

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install ArabelaTso/Skills-4-SE code-repair-generation-combo --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ArabelaTso/Skills-4-SE.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/code-repair-generation-combo .gemini/skills/code-repair-generation-combo && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "code-repair-generation-combo" agent skill from https://github.com/ArabelaTso/Skills-4-SE/tree/main/skills/code-repair-generation-combo into .gemini/skills/code-repair-generation-combo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-repair-generation-combo", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install ArabelaTso/Skills-4-SE code-repair-generation-combo

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/ArabelaTso/Skills-4-SE.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/code-repair-generation-combo .github/skills/code-repair-generation-combo && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "code-repair-generation-combo" agent skill from https://github.com/ArabelaTso/Skills-4-SE/tree/main/skills/code-repair-generation-combo into .github/skills/code-repair-generation-combo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-repair-generation-combo", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install ArabelaTso/Skills-4-SE code-repair-generation-combo --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ArabelaTso/Skills-4-SE.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/code-repair-generation-combo .opencode/skills/code-repair-generation-combo && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "code-repair-generation-combo" agent skill from https://github.com/ArabelaTso/Skills-4-SE/tree/main/skills/code-repair-generation-combo into .opencode/skills/code-repair-generation-combo/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-repair-generation-combo", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: code-repair-generation-combo
GitHub stars: 253
Token cost: ~1.3k tokens
SKILL.md length: 475 words
Files: 5 (incl. references, assets)
Skills in repo: 150
Repo updated: Aug 21, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Automatically repair buggy code and generate comprehensive tests for Python, Java, and C++ programs.

Works in 6 steps: Understand the Bug → Diagnose the Root Cause → Fix the Code → …
Users need to fix logic errors
SKILL.md covers Workflow, Example Usage, Language-Specific Notes and Resources
Calls pytest, mvn and gradle

What it does

Code Repair Generation Combo is an agent skill from ArabelaTso/Skills-4-SE. Automatically repair buggy code and generate comprehensive tests for Python, Java, and C++ programs. Use when users need to fix logic errors or runtime errors in functions, modules, or repositories. Accepts specifications via natural language descriptions, existing test cases, or input/output examples. Generates corrected code, creates or updates tests to verify correctness and prevent regressions, and produces a detailed report explaining the bug, fix, and testing strategy. Triggers on requests like "fix this…

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files and assets (for example `assets/bug-fix-report-template.md`, `references/cpp-testing.md` and `references/java-testing.md`).

It sits in Development, covering Debugging, Test generation and Test strategy. It works with C++, Java and Python. The repository describes itself as: A curated list of 180+ useful Claude Skills for Software Engineering and resources for customizing AI for SE workflows. The licence is Apache-2.0.

When your agent uses it

Users need to fix logic errors
Runtime errors in functions
Requests like fix this bug
Repair this code

Example prompts

“fix this bug”
“repair this code”
“debug this function”
“/code-repair-generation-combo”

Requirements

Python 3

Workflow steps

6 steps, taken from the step headings in SKILL.md.

Understand the Bug
Diagnose the Root Cause
Fix the Code
Generate Comprehensive Tests
Verify and Run Tests
Generate Bug Fix Report

What it can do on your machine

Read from SKILL.md and the folder at commit 4f38503. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- pytest
- mvn
- gradle
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Code Repair Generation Combo loads about 1.3k tokens when it runs, and up to ~2.7k if it reads all its reference files. Until then it costs about 155 tokens; SKILL.md has 475 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~155
When it runs · the whole SKILL.md, loaded when a task matches: ~1.3k
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~2.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from ArabelaTso/Skills-4-SE at commit 4f38503, republished under its Apache-2.0 licence (© ArabelaTso). 475 words, ~1,299 tokens.

Download SKILL.mdSave it as .claude/skills/code-repair-generation-combo/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.

name: code-repair-generation-combo
description: Automatically repair buggy code and generate comprehensive tests for Python, Java, and C++ programs. Use when users need to fix logic errors or runtime errors in functions, modules, or repositories. Accepts specifications via natural language descriptions, existing test cases, or input/output examples. Generates corrected code, creates or updates tests to verify correctness and prevent regressions, and produces a detailed report explaining the bug, fix, and testing strategy. Triggers on requests like "fix this bug", "repair this code", "debug this function", or "this code is broken".

Code Repair + Generation Combo

Automatically diagnose and repair buggy code while generating comprehensive tests to verify correctness and prevent regressions.

Workflow

Follow this systematic approach for bug fixing and test generation:

1. Understand the Bug

Read the buggy code - Use Read tool to examine the problematic code thoroughly.

Analyze the specification - Understand expected behavior from:

Natural language description from user
Existing failing test cases
Input/output examples provided
Error messages or stack traces

Identify the scope - Determine if the bug affects:

A single function
Multiple related functions
An entire module
Cross-module interactions

2. Diagnose the Root Cause

Trace the logic - Walk through the code execution mentally or with examples.

Identify the bug type:

Logic error: Code runs but produces wrong results (off-by-one, wrong operator, incorrect condition)
Runtime error: Code crashes or throws exceptions (null pointer, array out of bounds, type mismatch)

Pinpoint the exact location - Identify the specific lines causing the issue.

Understand side effects - Check if the bug affects other parts of the codebase.

3. Fix the Code

Apply minimal changes - Fix only what's broken, preserve existing functionality.

Use Edit tool - Make precise changes to the buggy code.

Verify the fix logic - Ensure the fix addresses the root cause, not just symptoms.

Preserve code style - Match existing formatting, naming conventions, and patterns.

4. Generate Comprehensive Tests

Load testing patterns - Read the appropriate reference file:

Python: references/python-testing.md
Java: references/java-testing.md
C++: references/cpp-testing.md

Create test cases covering:

Normal cases: Typical valid inputs
Edge cases: Boundary values, empty inputs, single elements
Error cases: Invalid inputs, null values, exceptions
Regression cases: Specific inputs that triggered the original bug

Update existing tests if they exist, or create new test files following language conventions.

Use parametrized tests when testing multiple similar cases.

Show full SKILL.md (190 more words)Show less

5. Verify and Run Tests

Execute the tests - Use Bash tool to run the test suite:

Python: pytest test_file.py -v
Java: mvn test or gradle test
C++: ./test_executable or ctest

Ensure all tests pass - If tests fail, revisit the fix.

Check coverage - Verify that the fix and related code paths are tested.

6. Generate Bug Fix Report

Use the report template - Read assets/bug-fix-report-template.md and populate it with:

Summary of the bug and fix
Root cause analysis
Changes made with file paths and line numbers
Test coverage details
Verification of regression safety

Be specific and clear - Include code snippets, test results, and reasoning.

Example Usage

Example 1: Python logic error

User: "This factorial function returns 24 instead of 120 for input 5. Fix it."

1. Read the buggy code
2. Identify: off-by-one error in loop range
3. Fix: Change `range(1, n)` to `range(1, n+1)`
4. Generate tests covering 0, 1, 5, negative numbers
5. Run pytest and verify all pass
6. Generate report

Example 2: Java runtime error

User: "My sorting method throws NullPointerException with null elements."

1. Read the code and identify null comparison issue
2. Fix: Add null checks before comparisons
3. Generate JUnit tests for arrays with nulls, empty arrays, normal cases
4. Run tests and verify
5. Generate report

Example 3: C++ logic error with examples

User: "Binary search returns -1 for existing elements. For [1,3,5,7,9] and target 5, should return 2."

1. Read code and trace with provided example
2. Identify: incorrect mid calculation or boundary condition
3. Fix the bug
4. Generate Google Test cases with provided example and additional edge cases
5. Compile and run tests
6. Generate report

Language-Specific Notes

Python:

Use pytest framework
Follow PEP 8 style
Use type hints if present in original code

Java:

Use JUnit 5 framework
Follow Java naming conventions
Handle null safety explicitly

C++:

Use Google Test or Catch2
Check for memory leaks with valgrind if applicable
Handle pointer safety and bounds checking

Resources

references/ - Testing patterns and best practices for each language assets/ - Bug fix report template for consistent documentation

Files

SKILL.md and 4 other files (references, assets) in skills/code-repair-generation-combo of ArabelaTso/Skills-4-SE.

SKILL.md
assets/bug-fix-report-template.md
references/cpp-testing.md
references/java-testing.md
references/python-testing.md

Open the folder on GitHubat commit 4f38503

Compare with similar skills

Code Repair Generation Combo next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Code Repair Generation Combo compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Code Repair Generation Combo this skillArabelaTso/Skills-4-SE	253	—	~1.3k	Automated safety check: Pass	Apache-2.0	1 mo ago
MCP Debuggerdebugmcp/mcp-debugger	171	—	~3.8k	Automated safety check: Pass	MIT	today
Dbgtheodo-group/debug-that	158	—	~2.2k	Automated safety check: Pass	MIT	today
OpenROAD Bug FixerThe-OpenROAD-Project/OpenROAD	3.2k	—	~784	Automated safety check: Pass	BSD-3-Clause	today
Git History Bug Auditben-manes/caffeine	18k	—	~3.3k	Automated safety check: Pass	Apache-2.0	2 days ago
Ue Live DebuggingJasonMa0012/MooaToon	749	—	~2.9k	Automated safety check: Notes	Custom licence	20 days ago

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Questions about Code Repair Generation Combo

What does Code Repair Generation Combo do?

Automatically repair buggy code and generate comprehensive tests for Python, Java, and C++ programs. Code Repair Generation Combo is an agent skill from ArabelaTso/Skills-4-SE. Automatically repair buggy code and generate comprehensive tests for Python, Java, and C++ programs.

When should I use Code Repair Generation Combo?

Code Repair Generation Combo fits situations like: users need to fix logic errors; runtime errors in functions; requests like fix this bug; repair this code.

How do I install Code Repair Generation Combo in Claude Code?

Run `npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a claude-code`. Or copy the skill folder (skills/code-repair-generation-combo in ArabelaTso/Skills-4-SE) into .claude/skills/code-repair-generation-combo in your project. Claude Code loads it when a task matches its description.

How do I install Code Repair Generation Combo in Codex?

Run `npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a codex`. Or copy the skill folder (skills/code-repair-generation-combo in ArabelaTso/Skills-4-SE) into .agents/skills/code-repair-generation-combo in your project. Codex loads it when a task matches its description.

Can I use Code Repair Generation Combo in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ArabelaTso/Skills-4-SE --skill code-repair-generation-combo -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-repair-generation-combo, .gemini/skills/code-repair-generation-combo, .github/skills/code-repair-generation-combo and .opencode/skills/code-repair-generation-combo in your project.

What does Code Repair Generation Combo need to run?

Going by SKILL.md and its folder, Code Repair Generation Combo needs the command-line tools its instructions call (pytest, mvn and gradle). Our summary lists: Python 3.

Does Code Repair Generation Combo access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Code Repair Generation Combo safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Code Repair Generation Combo use?

Code Repair Generation Combo is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Code Repair Generation Combo use?

About 1.3k tokens (SKILL.md is roughly 5.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.4k tokens, read only when the agent opens those files.

What are the alternatives to Code Repair Generation Combo?

Skills that share tags, products or a category with Code Repair Generation Combo: MCP Debugger (debugmcp/mcp-debugger, 171 stars), Dbg (theodo-group/debug-that, 158 stars), OpenROAD Bug Fixer (The-OpenROAD-Project/OpenROAD, 3.2k stars) and Git History Bug Audit (ben-manes/caffeine, 18k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Repair Generation Combo?

ArabelaTso (a GitHub user) maintains it in ArabelaTso/Skills-4-SE, which has 253 GitHub stars. The repository holds 150 skills in this directory. The repository was last updated on August 21, 2026.

Source: ArabelaTso/Skills-4-SE on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Code Repair Generation Combo

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Code Repair + Generation Combo

Workflow

1. Understand the Bug

2. Diagnose the Root Cause

3. Fix the Code

4. Generate Comprehensive Tests

5. Verify and Run Tests

6. Generate Bug Fix Report

Example Usage

Language-Specific Notes

Resources

Files

Compare with similar skills

Similar skills

More from ArabelaTso/Skills-4-SE

Related

Questions about Code Repair Generation Combo