Added value: +"Arguments for prepare_my_rsvp."

Added value: +"Exact MYOPL league slug from its link, for a league the signed-in account belongs to."

Added value: +"Proposed attendance: yes to attend, maybe if undecided, or no to decline. The owner confirms on MYOPL."

Previous value: -nullNew value: +{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "description": "MYOPL structured response for prepare_my_rsvp.",
+  "oneOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "action_id": {
+          "description": "Identifier to pass to get_my_action_status for this connection.",
+          "pattern": "^[A-Za-z0-9]{64}$",
+          "type": "string"
+        },
+        "confirmation_url": {
+          "description": "MYOPL page where the owner reviews and confirms the RSVP.",
+          "format": "uri",
+          "type": "string"
+        },
+        "expires_in": {
+          "description": "Seconds until this preparation expires.",
+          "minimum": 1,
+          "type": "integer"
+        },
+        "guidance": {
+          "description": "Instructions for presenting the confirmation step.",
+          "type": "string"
+        },
+        "status": {
+          "const": "confirmation_required",
+          "description": "The RSVP awaits the account owner's confirmation.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "status",
+        "action_id",
+        "confirmation_url",
+        "expires_in",
+        "guidance"
+      ],
+      "type": "object"
+    },
+    {
+      "additionalProperties": false,
+      "properties": {
+        "error": {
+          "description": "Tool execution or argument error; the enclosing result has isError set to true.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "error"
+      ],
+      "type": "object"
+    }
+  ],
+  "type": "object"
+}