Searches the contents of files in the project with a regular expression

• Prefer this tool to path search when searching for symbols in the project, because you won't need to guess what path it's in.
• Supports full regex syntax (eg. "log.*Error", "function\s+\w+", etc.)
• Pass an include_pattern if you know how to narrow your search on the files system
• Never use this tool to search for paths. Only search file contents with this tool.
• Use this tool when you need to find files containing specific patterns
• Results are paginated with 20 matches per page. Use the optional 'offset' parameter to request subsequent pages.
• DO NOT use HTML entities solely to escape characters in the tool parameters.