code-refactor

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha 83fe3b79ed8a · 23 Oct 2026Report an issue or request a re-scan

• Publishermhattingpete GitHub userOwner of the repository this skill is read from
• Source foldermhattingpete/claude-skills-marketplace/code-operations-plugin/skills/code-refactorThe exact folder we audited
• LicenceApache-2.0As the repository states it
• Commit pinned for this verdict83fe3b79ed8aA new audit runs when the source changes
• Repository statusNot archivedLast push 90 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Perform bulk code refactoring operations like renaming variables/functions across files, replacing patterns, and updating API calls. Use when users request renaming identifiers, replacing deprecated code patterns,…

---
name: code-refactor
description: Perform bulk code refactoring operations like renaming variables/functions across files, replacing patterns, and updating API calls. Use when users request renaming identifiers, replacing deprecated code patterns, updating method calls, or making consistent changes across multiple locations.
---

# Code Refactor

Systematic code refactoring across files. **Auto-switches to execution mode** for 10+ files (90% token savings).

## Mode Selection

- **1-9 files**: Use native tools (Grep + Edit with replace_all)
- **10+ files**: Automatically use `code-execution` skill

**Execution example (50 files):**
```python
from api.code_transform import rename_identifier
result = rename_identifier('.', 'oldName', 'newName', '**/*.py')
# Returns: {'files_modified': 50, 'total_replacements': 247}
# ~500 tokens vs ~25,000 tokens traditional
```

## When to Use

- "rename [identifier] to [new_name]"
- "replace all [pattern] with [replacement]"
- "refactor to use [new_pattern]"
- "update all calls to [function/API]"
- "convert [old_pattern] to [new_pattern]"

## Core Workflow (Native Mode)

### 1. Find All Occurrences
```
Grep(pattern="getUserData", output_mode="files_with_matches")     # Find files
Grep(pattern="getUserData", output_mode="content", -n=true, -B=2, -A=2)  # Verify with context
```

### 2. Replace All Instances
```
Edit(
  file_path="src/api.js",
  old_string="getUserData",
  new_string="fetchUserData",
  replace_all=true
)
```

### 3. Verify Changes
```
Grep(pattern="getUserData", output_mode="files_with_matches")  # Should return none
```

## Workflow Examples

### Rename Function
1. Find: `Grep(pattern="getUserData", output_mode="files_with_matches")`
2. Count: "Found 15 occurrences in 5 files"
3. Replace in each file with `replace_all=true`
4. Verify: Re-run Grep
5. Suggest: Run tests

### Replace Deprecated Pattern
1. Find: `Grep(pattern="\\bvar\\s+\\w+", output_mode="content", -n=true)`
2. Analyze: Check if reassigned (let) or constant (const)
3. Replace: `Edit(old_string="var count = 0", new_string="let count = 0")`
4. Verify: `npm run lint`

### Update API Calls
1. Find: `Grep(pattern="/api/auth/login", output_mode="content", -n=true)`
2. Replace: `Edit(old_string="'/api/auth/login'", new_string="'/api/v2/authentication/login'", replace_all=true)`
3. Test: Recommend integration tests

## Best Practices

**Planning:**
- Find all instances first
- Review context of each match
- Inform user of scope
- Consider edge cases (strings, comments)

**Safe Process:**
1. Search → Find all
2. Analyze → Verify appropriate
3. Inform → Tell user scope
4. Execute → Make changes
5. Verify → Confirm applied
6. Test → Suggest running tests

**Edge Cases:**
- Strings/comments: Ask if should update
- Exported APIs: Warn of breaking changes
- Case sensitivity: Be explicit

## Tool Reference

**Edit with replace_all:**
- `replace_all=true`: Replace all occurrences
- `replace_all=false`: Replace only first (or fail if multiple)
- Must match EXACTLY (whitespace, quotes)

**Grep patterns:**
- `-n=true`: Show line numbers
- `-B=N, -A=N`: Context lines
- `-i=true`: Case-insensitive
- `type="py"`: Filter by file type

## Integration

- **test-fixing**: Fix broken tests after refactoring
- **code-transfer**: Move refactored code
- **feature-planning**: Plan large refactorings

Excerpt, first 3,345 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

git clone https://github.com/mhattingpete/claude-skills-marketplace
git -C claude-skills-marketplace checkout 83fe3b79ed8a

Works in

1. 2026-10-23
   ✓SAFE B 89 / 100

   first audit · source 83fe3b79ed8a

Questions about code-refactor

• github.com/mhattingpete/claude-skills-marketplace/tree/main/code — the audited source at commit 83fe3b79ed8a and every finding aboveObserved · 23 Oct 2026

Spotted something wrong? Report a correction · Methodology