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Update Event

update_event
Destructive

Modify an existing Circle community event's details and status; set confirm=true to apply the user-requested changes.

Instructions

Update Event. Changes community state and requires confirm=true for the user-requested action.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
eventNo
accountNoNamed private Circle account; selects credentials, not a remote community ID.
confirmNoSet true only when the user asked for exactly this action.
payloadNoComplete JSON request body instead of body flags. Supports nested Tiptap, maps and nullable values.
event_idYesEvent ID
space_idNo
payload_fileNoRegular local JSON body file, at most 5 MB. Cannot be mixed with body flags or payload.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed10 schema fields changedv3.0.1
    • addedInput schema / $defs
      Added value: +{
+  "event": {
+    "properties": {
+      "attendee_invite_attributes": {
+        "properties": {
+          "invited_cohost_ids": {
+            "items": {
+              "type": "integer"
+            },
+            "type": "array"
+          },
+          "invited_entities_ids": {
+            "properties": {
+              "member_tags_ids": {
+                "items": {
+                  "type": "integer"
+                },
+                "type": "array"
+              },
+              "members_ids": {
+                "items": {
+                  "type": "integer"
+                },
+                "type": "array"
+              },
+              "space_groups_ids": {
+                "items": {
+                  "type": "integer"
+                },
+                "type": "array"
+              },
+              "spaces_ids": {
+                "items": {
+                  "type": "integer"
+                },
+                "type": "array"
+              }
+            },
+            "type": "object"
+          }
+        },
+        "type": "object"
+      },
+      "body": {
+        "type": "string"
+      },
+      "cover_image": {
+        "description": "signed_id of the cover image",
+        "type": "string"
+      },
+      "event_setting_attributes": {
+        "properties": {
+          "confirmation_message_button_link": {
+            "type": "string"
+          },
+          "confirmation_message_button_title": {
+            "type": "string"
+          },
+          "confirmation_message_description": {
+            "type": "string"
+          },
+          "confirmation_message_title": {
+            "type": "string"
+          },
+          "duration_in_seconds": {
+            "type": "integer"
+          },
+          "enable_custom_thank_you_message": {
+            "type": "boolean"
+          },
+          "hide_attendees": {
+            "type": "boolean"
+          },
+          "hide_location_from_non_attendees": {
+            "type": "boolean"
+          },
+          "host": {
+            "type": "string"
+          },
+          "in_person_location": {
+            "description": "A stringified Google Places API result. JSON-serialize the Places API response object before sending. Stored as-is in the database.",
+            "type": "string"
+          },
+          "live_stream_room_setting_attributes": {
+            "properties": {
+              "access_type": {
+                "description": "Access type for the live stream room. 'open' all community members will receive notifications to join, 'secret' invited members will receive notifications to join, 'public_stream' makes the event publicly accessible.",
+                "enum": [
+                  "open",
+                  "secret",
+                  "public_stream"
+                ],
+                "type": "string"
+              },
+              "auto_post_recording_enabled": {
+                "type": "boolean"
+              },
+              "hide_participants_list": {
+                "type": "boolean"
+              },
+              "limit_url_sharing": {
+                "type": "boolean"
+              },
+              "mute_on_join": {
+                "type": "boolean"
+              },
+              "recording_enabled": {
+                "type": "boolean"
+              },
+              "view_type": {
+                "description": "View type for the live stream room. 'speaker_view' shows the speaker view at the top, 'speaker_variant_view' shows the speaker view at the left side, 'grid_view' shows a grid of participants.",
+                "enum": [
+                  "speaker_view",
+                  "speaker_variant_view",
+                  "grid_view"
+                ],
+                "type": "string"
+              }
+            },
+            "type": "object"
+          },
+          "location_type": {
+            "type": "string"
+          },
+          "rsvp_disabled": {
+            "type": "boolean"
+          },
+          "rsvp_limit": {
+            "type": "integer"
+          },
+          "rsvp_limit_enabled": {
+            "type": "boolean"
+          },
+          "send_email_confirmation": {
+            "type": "boolean"
+          },
+          "send_email_reminder": {
+            "type": "boolean"
+          },
+          "send_in_app_notification_confirmation": {
+            "type": "boolean"
+          },
+          "send_in_app_notification_reminder": {
+            "type": "boolean"
+          },
+          "send_publish_email": {
+            "type": "boolean"
+          },
+          "starts_at": {
+            "format": "date-time",
+            "type": "string"
+          },
+          "ticket_type": {
+            "type": "string"
+          },
+          "virtual_location_url": {
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "event_type": {
+        "type": "string"
+      },
+      "hide_from_featured_areas": {
+        "type": "boolean"
+      },
+      "meta_tag_attributes": {
+        "properties": {
+          "meta_description": {
+            "type": "string"
+          },
+          "meta_title": {
+            "type": "string"
+          },
+          "opengraph_description": {
+            "type": "string"
+          },
+          "opengraph_image": {
+            "type": "string"
+          },
+          "opengraph_title": {
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "name": {
+        "type": "string"
+      },
+      "paywall_attributes": {
+        "properties": {
+          "currency_id": {
+            "type": "integer"
+          },
+          "description": {
+            "type": "string"
+          },
+          "price_amount": {
+            "type": "number"
+          }
+        },
+        "type": "object"
+      },
+      "recurring_setting_attributes": {
+        "properties": {
+          "edit_mode": {
+            "type": "string"
+          },
+          "ends_at": {
+            "format": "date-time",
+            "type": "string"
+          },
+          "frequency": {
+            "type": "string"
+          },
+          "occurrences": {
+            "type": "integer"
+          }
+        },
+        "type": "object"
+      },
+      "slug": {
+        "type": "string"
+      },
+      "space_id": {
+        "type": "integer"
+      },
+      "status": {
+        "enum": [
+          "draft",
+          "published"
+        ],
+        "type": "string"
+      },
+      "thumbnail_image": {
+        "description": "signed_id of the thumbnail image",
+        "type": "string"
+      },
+      "topics": {
+        "items": {
+          "type": "integer"
+        },
+        "type": "array"
+      },
+      "user_id": {
+        "type": "integer"
+      }
+    },
+    "required": [
+      "name",
+      "space_id",
+      "status"
+    ],
+    "type": "object"
+  }
+}
    • changedInput schema / properties / confirm / description
      Previous value: -"Must be true for the specific user-requested write."New value: +"Set true only when the user asked for exactly this action."
    • addedInput schema / properties / event / $ref
      Added value: +"#/$defs/event"
    • removedInput schema / properties / event / properties
      Removed value: -{
-  "attendee_invite_attributes": {
-    "properties": {
-      "invited_cohost_ids": {
-        "items": {
-          "type": "integer"
-        },
-        "type": "array"
-      },
-      "invited_entities_ids": {
-        "properties": {
-          "member_tags_ids": {
-            "items": {
-              "type": "integer"
-            },
-            "type": "array"
-          },
-          "members_ids": {
-            "items": {
-              "type": "integer"
-            },
-            "type": "array"
-          },
-          "space_groups_ids": {
-            "items": {
-              "type": "integer"
-            },
-            "type": "array"
-          },
-          "spaces_ids": {
-            "items": {
-              "type": "integer"
-            },
-            "type": "array"
-          }
-        },
-        "type": "object"
-      }
-    },
-    "type": "object"
-  },
-  "body": {
-    "type": "string"
-  },
-  "cover_image": {
-    "description": "signed_id of the cover image",
-    "type": "string"
-  },
-  "event_setting_attributes": {
-    "properties": {
-      "confirmation_message_button_link": {
-        "type": "string"
-      },
-      "confirmation_message_button_title": {
-        "type": "string"
-      },
-      "confirmation_message_description": {
-        "type": "string"
-      },
-      "confirmation_message_title": {
-        "type": "string"
-      },
-      "duration_in_seconds": {
-        "type": "integer"
-      },
-      "enable_custom_thank_you_message": {
-        "type": "boolean"
-      },
-      "hide_attendees": {
-        "type": "boolean"
-      },
-      "hide_location_from_non_attendees": {
-        "type": "boolean"
-      },
-      "host": {
-        "type": "string"
-      },
-      "in_person_location": {
-        "description": "A stringified Google Places API result. JSON-serialize the Places API response object before sending. Stored as-is in the database.",
-        "type": "string"
-      },
-      "live_stream_room_setting_attributes": {
-        "properties": {
-          "access_type": {
-            "description": "Access type for the live stream room. 'open' all community members will receive notifications to join, 'secret' invited members will receive notifications to join, 'public_stream' makes the event publicly accessible.",
-            "enum": [
-              "open",
-              "secret",
-              "public_stream"
-            ],
-            "type": "string"
-          },
-          "auto_post_recording_enabled": {
-            "type": "boolean"
-          },
-          "hide_participants_list": {
-            "type": "boolean"
-          },
-          "limit_url_sharing": {
-            "type": "boolean"
-          },
-          "mute_on_join": {
-            "type": "boolean"
-          },
-          "recording_enabled": {
-            "type": "boolean"
-          },
-          "view_type": {
-            "description": "View type for the live stream room. 'speaker_view' shows the speaker view at the top, 'speaker_variant_view' shows the speaker view at the left side, 'grid_view' shows a grid of participants.",
-            "enum": [
-              "speaker_view",
-              "speaker_variant_view",
-              "grid_view"
-            ],
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "location_type": {
-        "type": "string"
-      },
-      "rsvp_disabled": {
-        "type": "boolean"
-      },
-      "rsvp_limit": {
-        "type": "integer"
-      },
-      "rsvp_limit_enabled": {
-        "type": "boolean"
-      },
-      "send_email_confirmation": {
-        "type": "boolean"
-      },
-      "send_email_reminder": {
-        "type": "boolean"
-      },
-      "send_in_app_notification_confirmation": {
-        "type": "boolean"
-      },
-      "send_in_app_notification_reminder": {
-        "type": "boolean"
-      },
-      "send_publish_email": {
-        "type": "boolean"
-      },
-      "starts_at": {
-        "format": "date-time",
-        "type": "string"
-      },
-      "ticket_type": {
-        "type": "string"
-      },
-      "virtual_location_url": {
-        "type": "string"
-      }
-    },
-    "type": "object"
-  },
-  "event_type": {
-    "type": "string"
-  },
-  "hide_from_featured_areas": {
-    "type": "boolean"
-  },
-  "meta_tag_attributes": {
-    "properties": {
-      "meta_description": {
-        "type": "string"
-      },
-      "meta_title": {
-        "type": "string"
-      },
-      "opengraph_description": {
-        "type": "string"
-      },
-      "opengraph_image": {
-        "type": "string"
-      },
-      "opengraph_title": {
-        "type": "string"
-      }
-    },
-    "type": "object"
-  },
-  "name": {
-    "type": "string"
-  },
-  "paywall_attributes": {
-    "properties": {
-      "currency_id": {
-        "type": "integer"
-      },
-      "description": {
-        "type": "string"
-      },
-      "price_amount": {
-        "type": "number"
-      }
-    },
-    "type": "object"
-  },
-  "recurring_setting_attributes": {
-    "properties": {
-      "edit_mode": {
-        "type": "string"
-      },
-      "ends_at": {
-        "format": "date-time",
-        "type": "string"
-      },
-      "frequency": {
-        "type": "string"
-      },
-      "occurrences": {
-        "type": "integer"
-      }
-    },
-    "type": "object"
-  },
-  "slug": {
-    "type": "string"
-  },
-  "space_id": {
-    "type": "integer"
-  },
-  "status": {
-    "enum": [
-      "draft",
-      "published"
-    ],
-    "type": "string"
-  },
-  "thumbnail_image": {
-    "description": "signed_id of the thumbnail image",
-    "type": "string"
-  },
-  "topics": {
-    "items": {
-      "type": "integer"
-    },
-    "type": "array"
-  },
-  "user_id": {
-    "type": "integer"
-  }
-}
    • removedInput schema / properties / event / required
      Removed value: -[
-  "name",
-  "space_id",
-  "status"
-]
    • removedInput schema / properties / event / type
      Removed value: -"object"
    • addedInput schema / properties / payload / properties / event / $ref
      Added value: +"#/$defs/event"
    • removedInput schema / properties / payload / properties / event / properties
      Removed value: -{
-  "attendee_invite_attributes": {
-    "properties": {
-      "invited_cohost_ids": {
-        "items": {
-          "type": "integer"
-        },
-        "type": "array"
-      },
-      "invited_entities_ids": {
-        "properties": {
-          "member_tags_ids": {
-            "items": {
-              "type": "integer"
-            },
-            "type": "array"
-          },
-          "members_ids": {
-            "items": {
-              "type": "integer"
-            },
-            "type": "array"
-          },
-          "space_groups_ids": {
-            "items": {
-              "type": "integer"
-            },
-            "type": "array"
-          },
-          "spaces_ids": {
-            "items": {
-              "type": "integer"
-            },
-            "type": "array"
-          }
-        },
-        "type": "object"
-      }
-    },
-    "type": "object"
-  },
-  "body": {
-    "type": "string"
-  },
-  "cover_image": {
-    "description": "signed_id of the cover image",
-    "type": "string"
-  },
-  "event_setting_attributes": {
-    "properties": {
-      "confirmation_message_button_link": {
-        "type": "string"
-      },
-      "confirmation_message_button_title": {
-        "type": "string"
-      },
-      "confirmation_message_description": {
-        "type": "string"
-      },
-      "confirmation_message_title": {
-        "type": "string"
-      },
-      "duration_in_seconds": {
-        "type": "integer"
-      },
-      "enable_custom_thank_you_message": {
-        "type": "boolean"
-      },
-      "hide_attendees": {
-        "type": "boolean"
-      },
-      "hide_location_from_non_attendees": {
-        "type": "boolean"
-      },
-      "host": {
-        "type": "string"
-      },
-      "in_person_location": {
-        "description": "A stringified Google Places API result. JSON-serialize the Places API response object before sending. Stored as-is in the database.",
-        "type": "string"
-      },
-      "live_stream_room_setting_attributes": {
-        "properties": {
-          "access_type": {
-            "description": "Access type for the live stream room. 'open' all community members will receive notifications to join, 'secret' invited members will receive notifications to join, 'public_stream' makes the event publicly accessible.",
-            "enum": [
-              "open",
-              "secret",
-              "public_stream"
-            ],
-            "type": "string"
-          },
-          "auto_post_recording_enabled": {
-            "type": "boolean"
-          },
-          "hide_participants_list": {
-            "type": "boolean"
-          },
-          "limit_url_sharing": {
-            "type": "boolean"
-          },
-          "mute_on_join": {
-            "type": "boolean"
-          },
-          "recording_enabled": {
-            "type": "boolean"
-          },
-          "view_type": {
-            "description": "View type for the live stream room. 'speaker_view' shows the speaker view at the top, 'speaker_variant_view' shows the speaker view at the left side, 'grid_view' shows a grid of participants.",
-            "enum": [
-              "speaker_view",
-              "speaker_variant_view",
-              "grid_view"
-            ],
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "location_type": {
-        "type": "string"
-      },
-      "rsvp_disabled": {
-        "type": "boolean"
-      },
-      "rsvp_limit": {
-        "type": "integer"
-      },
-      "rsvp_limit_enabled": {
-        "type": "boolean"
-      },
-      "send_email_confirmation": {
-        "type": "boolean"
-      },
-      "send_email_reminder": {
-        "type": "boolean"
-      },
-      "send_in_app_notification_confirmation": {
-        "type": "boolean"
-      },
-      "send_in_app_notification_reminder": {
-        "type": "boolean"
-      },
-      "send_publish_email": {
-        "type": "boolean"
-      },
-      "starts_at": {
-        "format": "date-time",
-        "type": "string"
-      },
-      "ticket_type": {
-        "type": "string"
-      },
-      "virtual_location_url": {
-        "type": "string"
-      }
-    },
-    "type": "object"
-  },
-  "event_type": {
-    "type": "string"
-  },
-  "hide_from_featured_areas": {
-    "type": "boolean"
-  },
-  "meta_tag_attributes": {
-    "properties": {
-      "meta_description": {
-        "type": "string"
-      },
-      "meta_title": {
-        "type": "string"
-      },
-      "opengraph_description": {
-        "type": "string"
-      },
-      "opengraph_image": {
-        "type": "string"
-      },
-      "opengraph_title": {
-        "type": "string"
-      }
-    },
-    "type": "object"
-  },
-  "name": {
-    "type": "string"
-  },
-  "paywall_attributes": {
-    "properties": {
-      "currency_id": {
-        "type": "integer"
-      },
-      "description": {
-        "type": "string"
-      },
-      "price_amount": {
-        "type": "number"
-      }
-    },
-    "type": "object"
-  },
-  "recurring_setting_attributes": {
-    "properties": {
-      "edit_mode": {
-        "type": "string"
-      },
-      "ends_at": {
-        "format": "date-time",
-        "type": "string"
-      },
-      "frequency": {
-        "type": "string"
-      },
-      "occurrences": {
-        "type": "integer"
-      }
-    },
-    "type": "object"
-  },
-  "slug": {
-    "type": "string"
-  },
-  "space_id": {
-    "type": "integer"
-  },
-  "status": {
-    "enum": [
-      "draft",
-      "published"
-    ],
-    "type": "string"
-  },
-  "thumbnail_image": {
-    "description": "signed_id of the thumbnail image",
-    "type": "string"
-  },
-  "topics": {
-    "items": {
-      "type": "integer"
-    },
-    "type": "array"
-  },
-  "user_id": {
-    "type": "integer"
-  }
-}
    • removedInput schema / properties / payload / properties / event / required
      Removed value: -[
-  "name",
-  "space_id",
-  "status"
-]
    • removedInput schema / properties / payload / properties / event / type
      Removed value: -"object"
  2. First observedv2.0.0

TDQS

C2.3/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare destructiveHint=true, idempotentHint=false, and readOnlyHint=false, covering the safety profile. The description adds two genuinely useful behavioral facts: the mutation "changes community state" and that confirm=true gates the action. However, it does not disclose what is destroyed, permission needs, or rate limits, so it only modestly exceeds the annotation baseline.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

It is short and front-loaded, but the leading sentence is a redundant restatement of the name, so not every sentence earns its place. The useful content (confirm requirement, state change) is present but minimal.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a complex, non-idempotent, destructive mutation with nested objects and no output schema, the description is inadequate. It omits guidance on the three body-input strategies (event object, payload, payload_file) and on the multi-field event structure, leaving the agent to infer how to assemble a correct call.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 7 parameters (including a deeply nested event object, payload, and payload_file) at 71% schema coverage, the description should clarify the structural options. It mentions only confirm, which the schema already documents, and says nothing about how payload, payload_file, and body flags relate or how to use the nested event fields.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

"Update Event." restates the tool name and title almost verbatim, making the opening sentence tautological. The clause "Changes community state" adds only a vague sense of scope and does not distinguish this from siblings like create_event, delete_event, duplicate_event, or update_post.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies the tool is for a "user-requested action" and that confirm=true is required, but gives no explicit when-to-use versus alternatives. It never tells the agent how to choose between update_event and its closely related event siblings.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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