search-router

# Search Tool Router Use the most token-efficient search tool for each query type. ## When to Use - Searching for code patterns - Finding where something is implemented - Looking for specific identifiers - Understanding how code works ## Decision Tree ``` Query Type? ├── CODE EXPLORATION (symbols, call chains, data flow) │ → TLDR Search - 95% token savings │ DEFAULT FOR ALL CODE SEARCH - use instead of Grep │ Examples: "spawn_agent", "DataPoller", "redis usage" │ Command: tldr search "query" . │ ├── STRUCTURAL (AST patterns) │ → AST-grep (/ast-grep-find) - ~50 tokens output │ Examples: "def foo", "class Bar", "import X", "@decorator" │ ├── SEMANTIC (conceptual questions) │ → TLDR Semantic - 5-layer embeddings (P6) │ Examples: "how does auth work", "find error handling patterns" │ Command: tldr semantic search "query" │ ├── LITERAL (exact text, regex) │ → Grep tool - LAST RESORT │ Only when TLDR/AST-grep don't apply │ Examples: error messages, config values, non-code text │ └── FULL CONTEXT (need complete understanding) → Read tool - 1500+ tokens Last resort after finding the right file ``` ## Token Efficiency Comparison | Tool | Output Size | Best For | |------|-------------|----------| | **TLDR** | **~50-500** | **DEFAULT: Code symbols, call graphs, data flow** | | **TLDR Semantic** | **~100-300** | **Conceptual queries (P6, embedding-based)** | | AST-grep | ~50 tokens | Function/class defin...