- Fast content search tool that works with any codebase size

- Searches file contents using regular expressions

- Supports full regex syntax (eg. "log.*Error", "function\s+\w+", etc.)

- Filter files by pattern with the include parameter (eg. "*.js", "*.{ts,tsx}")

- Returns file paths with at least one match sorted by modification time

- Use this tool when you need to find files containing specific patterns

- If you need to identify/count the number of matches within files, use the Bash tool with `rg` (ripgrep) directly. Do NOT use `grep`.

- When you are doing an open ended search that may require multiple rounds of globbing and grepping, use the Agent tool instead