Search Tools

parcadei/Continuous-Claude-v3/.claude/skills/search-tools

by parcadeid07ff4b06b62f43771bc0c927d0211b734d6149eNo license3.9K starsListed Oct 9, 2026Updated Oct 9, 2026Repository updated 8 months ago

Search Tool Hierarchy

Instructions onlySoftware Development

AI-generated overview

Guides an agent in choosing among semantic, structural, text and literal code search tools.

What it does: This skill provides a decision tree and comparison table for selecting a code search approach: LEANN for semantic or conceptual queries, AST-grep for structural patterns, Morph for fast text search, and the built-in Grep tool for literal patterns. It lists example queries for each tool and shows LEANN command lines for searching, listing indexes and rebuilding an index. It produces guidance rather than files or code.
When to use it: Use it when an agent needs to search a codebase and must decide which search method fits the query. It is suited to conceptual questions about how code works, structural queries about functions or usages, and plain text or regex lookups.
Requirements: Instructions only, with no bundled scripts. LEANN requires a built index; AST-grep requires an MCP server; Morph requires an API key, with Grep as the fallback; the built-in Grep tool needs nothing.

Search Tool Hierarchy

When searching code, use this decision tree:

Decision Tree

Need CONCEPTUAL/SEMANTIC search?  (how does X work, find patterns, understand architecture)  → Use LEANN (/leann-search) - embedding-based semantic search  → PreToolUse hook auto-redirects semantic Grep queries
Need to understand code STRUCTURE?  (find function calls, class usages, refactor patterns)  → Use AST-grep (/ast-grep-find)
Need to find TEXT in code?  → Use Morph (/morph-search) - 20x faster  → If no Morph API key: fall back to Grep tool
Simple one-off search?  → Use built-in Grep tool directly

Need CONCEPTUAL/SEMANTIC search?  (how does X work, find patterns, understand architecture)  → Use LEANN (/leann-search) - embedding-based semantic search  → PreToolUse hook auto-redirects semantic Grep queries
Need to understand code STRUCTURE?  (find function calls, class usages, refactor patterns)  → Use AST-grep (/ast-grep-find)
Need to find TEXT in code?  → Use Morph (/morph-search) - 20x faster  → If no Morph API key: fall back to Grep tool
Simple one-off search?  → Use built-in Grep tool directly

Tool Comparison

Tool	Best For	Requires
LEANN	Semantic search: "how does caching work", "error handling patterns", conceptual queries	Index built
AST-grep	Structural patterns: "find all calls to `foo()`", refactoring, find usages by type	MCP server
Morph	Fast text search: "find files mentioning error", grep across codebase	API key
Grep	Literal patterns, class/function names, regex	Nothing (built-in)

Examples

LEANN (semantic/conceptual):

"how does authentication work"
"find error handling patterns"
"where is rate limiting implemented"

AST-grep (structural):

"Find all functions that return a Promise"
"Find all React components using useState"
"Refactor all imports of X to Y"

Morph (text search):

"Find all files mentioning 'authentication'"
"Search for TODO comments"

Grep (literal):

class ProviderAdapter
def __init__
Regex patterns

LEANN Commands

bash

# Search with semantic queryleann search opc-dev "how does blackboard communication work" --top-k 5
# List available indexesleann list
# Rebuild index (when code changes)leann build opc-dev --docs dir1 dir2 --no-recompute --no-compact --force

# Search with semantic queryleann search opc-dev "how does blackboard communication work" --top-k 5
# List available indexesleann list
# Rebuild index (when code changes)leann build opc-dev --docs dir1 dir2 --no-recompute --no-compact --force

Source and attribution

Source:parcadei/Continuous-Claude-v3in.claude/skills/search-toolsat commitd07ff4b

License: No license

Content belongs to its original authors. SourceWeft indexes it from a public repository.

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Search Tools

Search Tool Hierarchy

Decision Tree

Tool Comparison

Examples

LEANN Commands

Source and attribution

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