LeIndex Smart Router

Maps questions to the optimal LeIndex command. Use this to pick the right layer.

Question → Command Mapping

"What files/functions exist?"

bash

leindex tree . --ext .py          # File overview
leindex structure src/ --lang python  # Function/class overview

Use: Starting exploration, orientation

"What does X call / who calls X?"

bash

leindex context <function> --project . --depth 2
leindex calls src/

Use: Understanding architecture, finding entry points

"How complex is X?"

bash

leindex cfg <file> <function>

Use: Identifying refactoring candidates, understanding difficulty

"Where does variable Y come from?"

bash

leindex dfg <file> <function>

Use: Debugging, understanding data flow

"What affects line Z?"

bash

leindex slice <file> <function> <line>

Use: Impact analysis, safe refactoring

"Search for pattern P"

bash

leindex search "pattern" src/

Use: Finding code, structural search

"Natural language search"

bash

leindex semantic "authentication flow"

Use: Semantic code search using embeddings

Decision Tree

code

START
  │
  ├─► "What exists?" ──► tree / structure
  │
  ├─► "How does X connect?" ──► context / calls
  │
  ├─► "Why is X complex?" ──► cfg
  │
  ├─► "Where does Y flow?" ──► dfg
  │
  ├─► "What depends on Z?" ──► slice
  │
  ├─► "Find something" ──► search
  │
  └─► "Describe X in plain English" ──► semantic

Intent Detection Keywords

Intent	Keywords	Layer
Navigation	"what", "where", "find", "exists"	tree, structure, search
Architecture	"calls", "uses", "connects", "depends"	context, calls
Complexity	"complex", "refactor", "branches", "paths"	cfg
Data Flow	"variable", "value", "assigned", "comes from"	dfg
Impact	"affects", "changes", "slice", "dependencies"	slice/pdg
Debug	"bug", "error", "investigate", "broken"	cfg + dfg + context
Semantic	"describe", "what does", "how works"	semantic search

Python API

python

from maestro.leindex import (
    get_relevant_context,
    semantic_search,
    ContextExtractor,
)

# Get context for an entry point
context = get_relevant_context("/path/to/project", "main")

# Semantic search
results = semantic_search("how does authentication work?", "/path/to/project")

# Full analysis with token savings
extractor = ContextExtractor()
result = extractor.extract_for_file("src/api.py")
print(f"Token savings: {result.savings_percent:.1f}%")

Automatic Hook Integration

The leindex-context and leindex-read hooks automatically:

•Detect intent from your messages
•Route to appropriate layers
•Inject context into tool calls

You don't need to manually run these commands - the hooks do it for you.

Manual Override

If you need a specific layer the hooks didn't provide:

python

from maestro.leindex import (
    CFGAnalyzer,
    DFGAnalyzer,
    SlicingAnalyzer,
)

cfg_analyzer = CFGAnalyzer()
dfg_analyzer = DFGAnalyzer()
slicing_analyzer = SlicingAnalyzer()

# Analyze specific function
cfg = cfg_analyzer.analyze(source, "function_name", "file.py")
dfg = dfg_analyzer.analyze_function(source, "function_name", "file.py")
slice_result = slicing_analyzer.slice_backward(source, "function_name", 42, "file.py")