Code Simplifier

Code Simplifier

Simplify and refine code for clarity, consistency, and maintainability while preserving all functionality. This skill leverages the pr-review-toolkit:code-simplifier agent from the official Claude Code plugins.

Prerequisites

This skill requires the pr-review-toolkit plugin from the official Claude plugins repository.

Check if Dependency is Installed

To verify the plugin is installed, run:

claude plugin list --json | jq '.[] | select(.id | contains("pr-review-toolkit"))'

If output is empty, the plugin needs to be installed.

Install the Dependency

Install using the Claude CLI:

# Install to user settings (available in all projects)
claude plugin install pr-review-toolkit@claude-plugins-official

# OR install to project settings (shared with team via git)
claude plugin install pr-review-toolkit@claude-plugins-official --scope project

# OR install to local settings (personal, not committed)
claude plugin install pr-review-toolkit@claude-plugins-official --scope local

Scope guidance:

• user - Personal use across all projects (default)
• project - Team-shared, committed to .claude/settings.json
• local - Personal override, not committed

After Installation

Plugins load at session start. If the pr-review-toolkit:code-simplifier agent is not available after installation:

1. Note the current session ID (visible in prompt or via /session)
2. Exit Claude Code
3. Resume the session:

# Resume most recent session
claude --continue

# OR resume specific session by ID (replace $SESSION_ID with your actual session ID)
claude --resume $SESSION_ID

The agent becomes available after restart.

Using the Code Simplifier Agent

Once the dependency is installed and available, delegate to the pr-review-toolkit:code-simplifier agent using the Task tool:

Task tool with subagent_type: "pr-review-toolkit:code-simplifier"

What the Agent Does

The code-simplifier agent:

• Simplifies and refines code for clarity
• Ensures consistency and maintainability
• Preserves all existing functionality
• Focuses on recently modified code unless instructed otherwise

When to Use

Invoke the code-simplifier agent:

• After completing a feature implementation
• Before creating a pull request
• When code feels overly complex
• During refactoring efforts
• When reviewing unfamiliar code that seems convoluted

Example Invocations

Simplify recent changes:

Use the pr-review-toolkit:code-simplifier agent to review and simplify the code I just wrote.

Target specific files:

Use the code-simplifier agent to clean up src/utils/parser.ts - it's gotten too complex.

Broader refactoring:

Launch the code-simplifier agent to review the authentication module for opportunities to reduce complexity.

Troubleshooting

Agent Not Available

If the agent is not available after installation:

1. Verify installation succeeded:

   claude plugin list --json | jq '.[] | select(.id | contains("pr-review-toolkit"))'
   

2. Check if enabled:

   claude plugin list --json | jq '.[] | select(.id | contains("pr-review-toolkit")) | {id, enabled}'
   

3. If disabled, enable it:

   claude plugin enable pr-review-toolkit@claude-plugins-official
   

4. Restart Claude Code session (plugins load at session start)

Wrong Marketplace

The plugin is in claude-plugins-official, not claude-code-plugins. Use the correct identifier:

• ✅ pr-review-toolkit@claude-plugins-official
• ❌ pr-review-toolkit@claude-code-plugins

Session Resumption

To continue work after restarting:

# Continue most recent session in current directory
claude --continue

# Resume specific session (replace $SESSION_ID with your actual session ID)
claude --resume $SESSION_ID

# Fork session (new ID, preserves context)
claude --resume $SESSION_ID --fork-session

Quick Reference

Task	Command
Check if installed	claude plugin list --json | jq '.[] | select(.id | contains("pr-review-toolkit"))'
Install (user)	claude plugin install pr-review-toolkit@claude-plugins-official
Install (project)	claude plugin install pr-review-toolkit@claude-plugins-official --scope project
Enable	claude plugin enable pr-review-toolkit@claude-plugins-official
Resume session	claude --continue
List marketplaces	claude plugin marketplace list