Ast Grep Find
AST-based code search and refactoring via ast-grep MCP
Install
npx skills add parcadei/Continuous-Claude-v3 --skill ast-grep-find -g -a claude-code -y- Repository
- parcadei/Continuous-Claude-v33.9k
- Category
- AI and agents
- Updated
- 9mo ago
- License
- MIT
- Context cost
- Lightabout 645 tokens
- Runs scripts
- No, instructions only
What it does
AST-based code search and refactoring via ast-grep MCP
AST-Grep Find
Structural code search that understands syntax. Find patterns like function calls, imports, class definitions - not just text.
When to Use
- Find code patterns (ignores strings/comments)
- Search for function calls, class definitions, imports
- Refactor code with AST precision
- Rename variables/functions across codebase
Usage
Search for a pattern
uv run python -m runtime.harness scripts/ast_grep_find.py \
--pattern "import asyncio" --language python
Search in specific directory
uv run python -m runtime.harness scripts/ast_grep_find.py \
--pattern "async def \$FUNC(\$\$\$)" --language python --path "./src"
Refactor/replace pattern
uv run python -m runtime.harness scripts/ast_grep_find.py \
--pattern "console.log(\$MSG)" --replace "logger.info(\$MSG)" \
--language javascript
Dry run (preview changes)
uv run python -m runtime.harness scripts/ast_grep_find.py \
--pattern "print(\$X)" --replace "logger.info(\$X)" \
--language python --dry-run
Parameters
| Parameter | Description |
|---|---|
--pattern | AST pattern to search (required) |
--language | Language: python, javascript, typescript, go, etc. |
--path | Directory to search (default: .) |
--glob | File glob pattern (e.g., **/*.py) |
--replace | Replacement pattern for refactoring |
--dry-run | Preview changes without applying |
--context | Lines of context (default: 2) |
Pattern Syntax
| Syntax | Meaning |
|---|---|
$NAME | Match single node (variable, expression) |
$$$ | Match multiple nodes (arguments, statements) |
$_ | Match any single node (wildcard) |
Examples
# Find all function definitions
uv run python -m runtime.harness scripts/ast_grep_find.py \
--pattern "def \$FUNC(\$\$\$):" --language python
