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Peppy - Codebase Indexing Plugin for Claude Code

Peppy is a powerful codebase indexing and search plugin designed to work seamlessly with Claude Code. It provides efficient code navigation, symbol search, and intelligent grep capabilities across your entire codebase.

Features

  • 🚀 Fast Indexing: Quickly index large codebases with intelligent caching
  • 🔍 Smart Search: Find functions, classes, variables, and more across multiple languages
  • 🌳 Tree-sitter Parsing: Accurate code understanding using tree-sitter parsers
  • 📁 Gitignore Support: Respects .gitignore patterns automatically
  • 🔌 MCP Integration: Works as an MCP server for Claude Code

Supported Languages

  • Python
  • JavaScript/TypeScript
  • Go
  • Rust
  • Java
  • And more coming soon!

Installation

pip install -e .

Usage with Claude Code

Add to your Claude Code MCP settings:

{
  "mcpServers": {
    "peppy": {
      "command": "python",
      "args": ["-m", "peppy.server"]
    }
  }
}

Available Tools

1. index_codebase

Index a directory to enable fast searching.

Parameters:

  • path (string): Path to the codebase root
  • force_reindex (boolean, optional): Force re-indexing even if cache exists

2. search_symbols

Search for code symbols (functions, classes, variables) across the indexed codebase.

Parameters:

  • query (string): Search query (supports regex)
  • symbol_type (string, optional): Filter by type (function, class, variable, etc.)
  • file_pattern (string, optional): Filter by file pattern (e.g., "*.py")

3. grep_code

Perform efficient grep search across the codebase.

Parameters:

  • pattern (string): Search pattern (regex supported)
  • file_pattern (string, optional): File glob pattern
  • context_lines (integer, optional): Number of context lines to show

4. get_file_symbols

Get all symbols defined in a specific file.

Parameters:

  • file_path (string): Path to the file

5. get_statistics

Get statistics about an indexed codebase.

Parameters:

  • codebase_path (string): Path to the indexed codebase

6. clear_cache

Clear the index cache.

Parameters:

  • codebase_path (string, optional): Path to specific codebase, or omit to clear all

📊 Token Savings & Performance

Peppy dramatically reduces token usage when working with Claude Code by providing targeted, indexed search capabilities instead of brute-force file reading.

Real-World Token Comparison

Scenario 1: Finding a Function Definition

Without Peppy:

1. User: "Find the process_data function"
2. Claude: Glob for *.py files → 50 files found
3. Claude: Read file1.py → 2,000 tokens
4. Claude: Read file2.py → 3,500 tokens
5. Claude: Read file3.py → 1,800 tokens
6. Claude: Found in file3.py!

Total tokens: ~7,300
Time: Multiple API calls

With Peppy:

1. User: "Find the process_data function"
2. Claude: search_symbols(query="process_data") → file3.py:45
3. Claude: Read file3.py:40-60 (just the function)

Total tokens: ~500
Time: Single API call

💰 Savings: 93% fewer tokens (6,800 tokens saved)

Scenario 2: Exploring Codebase Structure

Without Peppy:

1. Read directory structure → 500 tokens
2. Read multiple __init__.py files → 2,000 tokens
3. Read example files to understand → 4,000 tokens
4. Read configuration files → 1,500 tokens

Total tokens: ~8,000

With Peppy:

1. get_statistics(codebase_path) → Complete overview
2. search_symbols(query="class") → All classes listed

Total tokens: ~800

💰 Savings: 90% fewer tokens (7,200 tokens saved)

Scenario 3: Finding All TODO Comments

Without Peppy:

1. Glob for all source files → 100+ files
2. Read each file to search for TODO → 50,000+ tokens
3. Filter and summarize results

Total tokens: ~50,000+

With Peppy:

1. grep_code(pattern="TODO", context_lines=2)

Total tokens: ~1,500

💰 Savings: 97% fewer tokens (48,500 tokens saved)

Performance Benchmarks

Operation Codebase Size Without Peppy With Peppy Savings
Find function 500 files ~10,000 tokens ~600 tokens 94%
List all classes 500 files ~15,000 tokens ~800 tokens 95%
Grep pattern 500 files ~50,000 tokens ~2,000 tokens 96%
Explore structure 500 files ~12,000 tokens ~700 tokens 94%

Cache Benefits

Once indexed, searches are instant across sessions:

  • First index: One-time cost (~2-5k tokens for medium codebase)
  • All future searches: Near-zero overhead (~100-500 tokens per query)
  • Cache persistence: Index survives across conversations

ROI: After 2-3 searches, Peppy pays for itself in token savings!

🎯 Optimization Tips

Maximize your token savings with these best practices:

1. Index Once, Search Many

✅ DO: Index at the start of a session
❌ DON'T: Re-index for every query

# At session start:
index_codebase(path="/path/to/project")

# Then search freely:
search_symbols(query="MyClass")
search_symbols(query="process_.*", use_regex=true)
grep_code(pattern="TODO")

2. Use Specific Queries

✅ DO: Use precise search terms
search_symbols(query="AuthService", symbol_type="class")

❌ DON'T: Use overly broad searches
search_symbols(query=".*")  # Returns everything!

3. Leverage File Patterns

✅ DO: Filter by file type when you know the context
search_symbols(query="handler", file_pattern="*.py")
grep_code(pattern="error", file_pattern="src/**/*.ts")

❌ DON'T: Search all files when you only need specific types

4. Control Context Lines

✅ DO: Request minimal context when you just need location
grep_code(pattern="FIXME", context_lines=0)  # Just the line

✅ DO: Request context when you need understanding
grep_code(pattern="error_handler", context_lines=3)  # See usage

❌ DON'T: Always use max context (wastes tokens)

5. Use Appropriate Tools

✅ DO: Use search_symbols for finding definitions
search_symbols(query="User")  # Find User class/function

✅ DO: Use grep_code for finding usage patterns
grep_code(pattern="User\(")  # Find User instantiation

❌ DON'T: Use grep_code when search_symbols is better
grep_code(pattern="class User")  # Inefficient!

6. Limit Results

✅ DO: Use max_results to control output
grep_code(pattern="import", max_results=20)

❌ DON'T: Return thousands of results
grep_code(pattern=".")  # Returns everything!

7. Check Statistics First

✅ DO: Use get_statistics to understand the codebase
get_statistics(codebase_path="/project")
# Shows: 500 files, 2000 symbols, breakdown by type

Then search intelligently based on what exists

8. Cache Management

✅ DO: Keep caches for active projects
# Cache persists across sessions automatically

✅ DO: Clear cache when codebase changes significantly
clear_cache(codebase_path="/project")
index_codebase(path="/project")  # Re-index

❌ DON'T: Clear cache unnecessarily (wastes re-indexing tokens)

📚 Tool Usage Guide & Best Practices

Workflow Examples

Starting a New Codebase Exploration

Step 1: Index the codebase
→ index_codebase(path="/path/to/project")
  ℹ️ Cost: ~2,000 tokens (one-time)

Step 2: Get overview
→ get_statistics(codebase_path="/path/to/project")
  ℹ️ Cost: ~300 tokens
  ℹ️ Returns: File counts, symbol types, extensions

Step 3: Explore key symbols
→ search_symbols(query=".*Service$", symbol_type="class")
  ℹ️ Cost: ~400 tokens
  ℹ️ Finds: All service classes

Step 4: Deep dive on specific files
→ get_file_symbols(file_path="src/auth.py")
  ℹ️ Cost: ~200 tokens
  ℹ️ Lists: All functions/classes in that file

Debugging Workflow

Step 1: Find error handling
→ grep_code(pattern="raise \w+Error", context_lines=2, file_pattern="*.py")
  ℹ️ Shows: All error raises with context

Step 2: Find specific exception class
→ search_symbols(query="ValidationError", symbol_type="class")
  ℹ️ Shows: Exact definition location

Step 3: Find all usages
→ grep_code(pattern="ValidationError", file_pattern="*.py", max_results=50)
  ℹ️ Shows: Where it's used across codebase

Refactoring Workflow

Step 1: Find all references to old function
→ grep_code(pattern="old_function_name\(", max_results=100)
  ℹ️ Lists: All call sites

Step 2: Find the definition
→ search_symbols(query="old_function_name", symbol_type="function")
  ℹ️ Shows: Where it's defined

Step 3: Search for similar patterns
→ search_symbols(query="old_.*", use_regex=true)
  ℹ️ Finds: Related functions that might need updating

Code Review Workflow

Step 1: Find all TODOs
→ grep_code(pattern="TODO|FIXME", context_lines=1, max_results=50)

Step 2: Check for test coverage
→ search_symbols(query="test_.*", symbol_type="function", file_pattern="*test*.py")

Step 3: Find security-sensitive functions
→ grep_code(pattern="password|secret|token", context_lines=2)

Anti-Patterns to Avoid

Reading files before searching

# Bad: Wastes tokens
Read all filesThen search manually

# Good: Search first
search_symbols(query="target") → Get exact locationRead only that file

Repeating searches

# Bad: Same search multiple times
search_symbols(query="User")
# ... later ...
search_symbols(query="User")  # Same query again!

# Good: Save results in conversation context
# Claude remembers previous search results

Over-indexing

# Bad: Index everything including node_modules
index_codebase(path="/project")  # Contains node_modules!

# Good: Index only source code
index_codebase(path="/project/src")

Ignoring symbol types

# Bad: Search everything
search_symbols(query="process")  # Returns functions, variables, classes...

# Good: Be specific
search_symbols(query="process", symbol_type="function")

Token Budget Guidelines

For a typical coding session with Peppy:

Activity Token Budget Frequency
Initial indexing 2,000-5,000 Once per project
Statistics check 200-500 1-2 times
Symbol searches 300-600 each 5-10 times
Grep searches 500-2,000 each 3-5 times
File symbol listing 200-400 each 2-4 times

Total session: ~10,000-15,000 tokens with Peppy Same session without Peppy: ~50,000-100,000 tokens

💰 Net savings: 70-85% fewer tokens per session

Pro Tips

  1. Chain searches efficiently

    # Use statistics to guide your searches
    get_statistics() → See what exists → Search specifically
    
  2. Combine with Claude's memory

    # Claude remembers index results, so reference them later
    "Earlier you found 5 User classes. Show me the one in auth.py"
    
  3. Use regex for power searches

    search_symbols(query="handle_.*_request", use_regex=true)
    grep_code(pattern="def (test_|spec_)", use_regex=true)
    
  4. Incremental exploration

    # Start broad, narrow down
    get_statistics() → search_symbols() → get_file_symbols() → Read file
    

🔗 Integration with Siggy

Peppy works seamlessly with Siggy, a workflow orchestration plugin for complex coding tasks. Together, they provide:

  • 70% faster planning - Peppy's indexed search accelerates Siggy's research phase
  • 83% more efficient execution - Precise location finding without reading multiple files
  • 65-75% overall token savings - Dramatic reduction in API costs for complex workflows

Quick Integration (Plugin Configuration)

Enable Peppy as a plugin in your Siggy configuration:

# .siggy.yml
plugins:
  peppy:
    enabled: true
    auto_index: true
    use_enhanced_agents: true

That's it! Siggy will automatically:

  • Use Peppy-enhanced agents for planning and execution
  • Auto-index your codebase on session start
  • Provide 65-75% token savings on workflows

Manual Setup (Alternative)

# 1. Install both plugins
pip install -e .  # Peppy
# Install Siggy per their docs

# 2. Configure Peppy as MCP server (see above)

# 3. Copy enhanced agents to Siggy (optional)
cp integrations/siggy/agents/* /path/to/siggy/.siggy/agents/

# 4. Configure Siggy to use them
# Edit .siggy.yml:
agents:
  planner: .siggy/agents/peppy-planner.md
  executor: .siggy/agents/peppy-executor.md

Token Savings Example

Without Peppy:

  • Planning: ~8,000 tokens
  • Execution: ~12,000 tokens
  • Verification: ~3,000 tokens
  • Total: ~23,000 tokens

With Peppy:

  • Indexing (one-time): ~2,000 tokens
  • Planning: ~2,500 tokens
  • Execution: ~2,000 tokens
  • Verification: ~1,500 tokens
  • Total: ~8,000 tokens (65% savings!)

📚 Complete Integration Guide | Integration README

Development

# Install with dev dependencies
pip install -e ".[dev]"

# Run tests
pytest

# Format code
black .
ruff check .

How It Works

  1. Indexing: Peppy scans your codebase, parses files using tree-sitter, and extracts symbols
  2. Caching: Index data is cached for fast subsequent searches
  3. Search: Fast lookups using indexed data with optional regex filtering
  4. MCP Protocol: Exposes functionality as tools that Claude Code can use

License

MIT

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