Variations of inReplyTo

The property is defined here. The goal of this support table is to show how applications react to inReplyTo containing a wide variation of allowed objects. As Fediverse applications generally only give one the option to reply to a single element, the lacking support should not be surprising.

Examples

Example 1

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://sharkey/users/aauxegzk6r4e0001",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/actor/8GL9VpOliDo",
  "published": "2025-07-31T12:20:47Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/aauxegzk6r4e0001"
    ],
    "id": "http://pasture-one-actor/actor/9CeXzh6aX8g",
    "published": "2025-07-31T12:20:47Z",
    "content": "valid uri",
    "inReplyTo": "http://pasture-one-actor/assets/note1.jsonap"
  }
}

sharkey

{
  "id": "aauxgi6w307x0013",
  "uri": "http://pasture-one-actor/actor/9CeXzh6aX8g",
  "url": "http://pasture-one-actor/actor/9CeXzh6aX8g",
  "account": {
    "id": "aauxg2za307x0002",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-07-31T12:20:27.286Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 29,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": "9o5nesfc307x0012",
  "in_reply_to_account_id": "aauxg2za307x0002",
  "reblog": null,
  "content": "<p><span>valid uri</span></p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "valid uri",
  "created_at": "2025-07-31T12:20:47.000Z",
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "reactions": [],
  "emoji_reactions": [],
  "bookmarked": false,
  "quote": null,
  "edited_at": null
}

Example 2

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://sharkey/users/aauxegzk6r4e0001",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/actor/L1JbinrY_P4",
  "published": "2025-07-31T12:20:47Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/aauxegzk6r4e0001"
    ],
    "id": "http://pasture-one-actor/actor/MQ8AiyyEEd4",
    "published": "2025-07-31T12:20:47Z",
    "content": "invalid uri",
    "inReplyTo": "http://invalid.example/"
  }
}

no result

Example 3

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://sharkey/users/aauxegzk6r4e0001",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/actor/EdM4HO1vYJ4",
  "published": "2025-07-31T12:21:00Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/aauxegzk6r4e0001"
    ],
    "id": "http://pasture-one-actor/actor/A-ntVFFbUSU",
    "published": "2025-07-31T12:21:00Z",
    "content": "list",
    "inReplyTo": [
      "http://pasture-one-actor/assets/note1.jsonap"
    ]
  }
}

sharkey

{
  "id": "aauxgs80307x0014",
  "uri": "http://pasture-one-actor/actor/A-ntVFFbUSU",
  "url": "http://pasture-one-actor/actor/A-ntVFFbUSU",
  "account": {
    "id": "aauxg2za307x0002",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-07-31T12:20:27.286Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 30,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": "9o5nesfc307x0012",
  "in_reply_to_account_id": "aauxg2za307x0002",
  "reblog": null,
  "content": "<p><span>list</span></p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "list",
  "created_at": "2025-07-31T12:21:00.000Z",
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "reactions": [],
  "emoji_reactions": [],
  "bookmarked": false,
  "quote": null,
  "edited_at": null
}

Example 4

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://sharkey/users/aauxegzk6r4e0001",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/actor/-5WAgsXS5o0",
  "published": "2025-07-31T12:21:01Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/aauxegzk6r4e0001"
    ],
    "id": "http://pasture-one-actor/actor/OmQdLX17PnY",
    "published": "2025-07-31T12:21:01Z",
    "content": "Link in inReplyTo",
    "inReplyTo": {
      "type": "Link",
      "href": "http://pasture-one-actor/assets/note1.jsonap"
    }
  }
}

no result

Example 5

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://sharkey/users/aauxegzk6r4e0001",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/actor/2AwGH30Dmqs",
  "published": "2025-07-31T12:21:14Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/aauxegzk6r4e0001"
    ],
    "id": "http://pasture-one-actor/actor/KvNjlsOVYjw",
    "published": "2025-07-31T12:21:14Z",
    "content": "two elements in inReplyTo",
    "inReplyTo": [
      "http://pasture-one-actor/assets/note1.jsonap",
      "http://pasture-one-actor/assets/note2.jsonap"
    ]
  }
}

sharkey

{
  "id": "aauxh30w307x0015",
  "uri": "http://pasture-one-actor/actor/KvNjlsOVYjw",
  "url": "http://pasture-one-actor/actor/KvNjlsOVYjw",
  "account": {
    "id": "aauxg2za307x0002",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-07-31T12:20:27.286Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 31,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": "9o5nesfc307x0012",
  "in_reply_to_account_id": "aauxg2za307x0002",
  "reblog": null,
  "content": "<p><span>two elements in inReplyTo</span></p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "two elements in inReplyTo",
  "created_at": "2025-07-31T12:21:14.000Z",
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "reactions": [],
  "emoji_reactions": [],
  "bookmarked": false,
  "quote": null,
  "edited_at": null
}

Example 6

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://sharkey/users/aauxegzk6r4e0001",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/actor/qTsbQC5eu4g",
  "published": "2025-07-31T12:21:15Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/aauxegzk6r4e0001"
    ],
    "id": "http://pasture-one-actor/actor/O5d6-ekAxzs",
    "published": "2025-07-31T12:21:15Z",
    "content": "collection",
    "inReplyTo": {
      "type": "Collection",
      "items": [
        "http://pasture-one-actor/actor"
      ]
    }
  }
}

no result

Example 7

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "http://sharkey/users/aauxegzk6r4e0001",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/actor/jlaPjcn273g",
  "published": "2025-07-31T12:21:28Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/aauxegzk6r4e0001"
    ],
    "id": "http://pasture-one-actor/actor/z6Ckuiyu12k",
    "published": "2025-07-31T12:21:28Z",
    "content": "embedded note",
    "inReplyTo": {
      "@context": "https://www.w3.org/ns/activitystreams",
      "type": "Note",
      "id": "http://pasture-one-actor/assets/note1.jsonap",
      "to": [
        "as:Public"
      ],
      "attributedTo": "http://pasture-one-actor/actor",
      "content": "One",
      "published": "2024-01-06T13:11:45Z"
    }
  }
}

sharkey

{
  "id": "aauxhdts307x0016",
  "uri": "http://pasture-one-actor/actor/z6Ckuiyu12k",
  "url": "http://pasture-one-actor/actor/z6Ckuiyu12k",
  "account": {
    "id": "aauxg2za307x0002",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-07-31T12:20:27.286Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 32,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": "9o5nesfc307x0012",
  "in_reply_to_account_id": "aauxg2za307x0002",
  "reblog": null,
  "content": "<p><span>embedded note</span></p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "embedded note",
  "created_at": "2025-07-31T12:21:28.000Z",
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "reactions": [],
  "emoji_reactions": [],
  "bookmarked": false,
  "quote": null,
  "edited_at": null
}