Constant LS_TOOL_SCHEMA 

pub const LS_TOOL_SCHEMA: &str = r#"{
    "type": "object",
    "properties": {
        "path": {
            "type": "string",
            "description": "The absolute path to the directory to list"
        },
        "long_format": {
            "type": "boolean",
            "description": "Show detailed information (size, permissions, modified time). Defaults to false."
        },
        "include_hidden": {
            "type": "boolean",
            "description": "Include hidden files (starting with dot). Defaults to false."
        },
        "pattern": {
            "type": "string",
            "description": "Glob pattern to filter results (e.g., '*.rs')"
        },
        "sort_by": {
            "type": "string",
            "enum": ["name", "size", "modified"],
            "description": "Field to sort by. Defaults to 'name'."
        },
        "reverse": {
            "type": "boolean",
            "description": "Reverse the sort order. Defaults to false."
        },
        "directories_first": {
            "type": "boolean",
            "description": "List directories before files. Defaults to true."
        },
        "limit": {
            "type": "integer",
            "description": "Maximum number of entries to return. Defaults to 1000."
        }
    },
    "required": ["path"]
}"#;

Ls tool JSON schema constant.