MCP server tools taking only "instructions" as input.

Since today, the server tools started taking a natural language query as input. Earlier they had proper schemas for each tool. It’s causing weird issues when using the tool with a LLM.

       { "google_calendar": [
            {
                "name": "GOOGLE_CALENDAR-UPDATE-EVENT",
                "description": "Update an event from Google Calendar. [See the documentation](https://googleapis.dev/nodejs/googleapis/latest/calendar/classes/Resource$Events.html#update)",
                "schema": {
                    "type": "object",
                    "properties": {
                        "instruction": {
                            "type": "string"
                        }
                    },
                    "required": [
                        "instruction"
                    ],
                    "additionalProperties": false,
                    "$schema": "http://json-schema.org/draft-07/schema#"
                }
            },
            {
                "name": "GOOGLE_CALENDAR-QUICK-ADD-EVENT",
                "description": "Create a quick event to the Google Calendar. [See the documentation](https://googleapis.dev/nodejs/googleapis/latest/calendar/classes/Resource$Events.html#quickAdd)",
                "schema": {
                    "type": "object",
                    "properties": {
                        "instruction": {
                            "type": "string"
                        }
                    },
                    "required": [
                        "instruction"
                    ],
                    "additionalProperties": false,
                    "$schema": "http://json-schema.org/draft-07/schema#"
                }
            },
            {
                "name": "GOOGLE_CALENDAR-QUERY-FREE-BUSY-CALENDARS",
                "description": "Retrieve free/busy calendar details from Google Calendar. [See the documentation](https://googleapis.dev/nodejs/googleapis/latest/calendar/classes/Resource$Freebusy.html#query)",
                "schema": {
                    "type": "object",
                    "properties": {
                        "instruction": {
                            "type": "string"
                        }
                    },
                    "required": [
                        "instruction"
                    ],
                    "additionalProperties": false,
                    "$schema": "http://json-schema.org/draft-07/schema#"
                }
            }
}