diff --git a/spec/v1.json b/spec/v1.json
index 414cf61..6147dfc 100644
--- a/spec/v1.json
+++ b/spec/v1.json
@@ -3836,6 +3836,15 @@
                   "items": {
                     "$ref": "#/components/schemas/PostMediaItem"
                   }
+                },
+                "instagram_trial_reel": {
+                  "description": "Instagram only: publish this video as a trial reel, shown to non-followers first. `manual` keeps it a trial until you share it to your followers from the Instagram app; `auto` lets Instagram share it if it performs well; `off` (the default) publishes a normal reel. Only valid on an Instagram channel. A draft may hold it before its video is attached; scheduling or publishing refuses anything that is not exactly one video (no image, carousel or second file) with 400 `validation_failed`. A non-Instagram channel or an unknown value is refused the same way, never ignored.",
+                  "type": "string",
+                  "enum": [
+                    "off",
+                    "manual",
+                    "auto"
+                  ]
                 }
               },
               "required": [
@@ -4289,15 +4298,11 @@
             "description": "Account handle or display name, e.g. \"@postifyhq\"."
           },
           "avatar_url": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Profile image URL, if the platform provides one."
+            "description": "Profile image URL, if the platform provides one.",
+            "type": [
+              "string",
+              "null"
+            ]
           },
           "followers": {
             "anyOf": [
@@ -4336,15 +4341,11 @@
             "description": "When channel metadata was last refreshed (ISO-8601 UTC)."
           },
           "last_error": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Most recent connection error, if any."
+            "description": "Most recent connection error, if any.",
+            "type": [
+              "string",
+              "null"
+            ]
           },
           "created_at": {
             "type": "string",
@@ -4381,15 +4382,11 @@
             "description": "True when another page exists after `next_cursor`."
           },
           "next_cursor": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Opaque cursor for the next page — pass as `after`. Reusing a cursor with a different query is rejected."
+            "description": "Opaque cursor for the next page — pass as `after`. Reusing a cursor with a different query is rejected.",
+            "type": [
+              "string",
+              "null"
+            ]
           }
         },
         "required": [
@@ -4435,15 +4432,11 @@
             "description": "`pending` until the upload is completed; only `ready` assets should be attached to posts."
           },
           "url": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Durable URL for the asset — use this as `media[].url` when creating posts. Null until the upload completes."
+            "description": "Durable URL for the asset — use this as `media[].url` when creating posts. Null until the upload completes.",
+            "type": [
+              "string",
+              "null"
+            ]
           },
           "size_bytes": {
             "anyOf": [
@@ -4485,15 +4478,11 @@
             "description": "Pixel height, when known."
           },
           "duration_sec": {
-            "anyOf": [
-              {
-                "type": "number"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Duration in seconds for audio/video, when known."
+            "description": "Duration in seconds for audio/video, when known.",
+            "type": [
+              "number",
+              "null"
+            ]
           },
           "created_at": {
             "type": "string",
@@ -4564,15 +4553,11 @@
             "description": "True when another page exists after `next_cursor`."
           },
           "next_cursor": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Opaque cursor for the next page — pass as `after`. Reusing a cursor with a different query is rejected."
+            "description": "Opaque cursor for the next page — pass as `after`. Reusing a cursor with a different query is rejected.",
+            "type": [
+              "string",
+              "null"
+            ]
           }
         },
         "required": [
@@ -4614,26 +4599,18 @@
             "description": "Post format."
           },
           "title": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Internal title (not published to platforms)."
+            "description": "Internal title (not published to platforms).",
+            "type": [
+              "string",
+              "null"
+            ]
           },
           "body": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Channel-agnostic base text the variants derive from."
+            "description": "Channel-agnostic base text the variants derive from.",
+            "type": [
+              "string",
+              "null"
+            ]
           },
           "scheduled_at": {
             "anyOf": [
@@ -4718,6 +4695,14 @@
               "$ref": "#/components/schemas/PostMediaItemOutput"
             },
             "description": "Media attached to this variant."
+          },
+          "instagram_trial_reel": {
+            "description": "Present only when this Instagram variant publishes as a trial reel: `manual` or `auto` (see the create request).",
+            "type": "string",
+            "enum": [
+              "manual",
+              "auto"
+            ]
           }
         },
         "required": [
@@ -4750,26 +4735,18 @@
             "description": "Latest delivery stage. `indexed`/`acked` are success; `failed`/`dlq` are terminal failures; anything else is in flight."
           },
           "external_id": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "The platform's id for the published item, once known."
+            "description": "The platform's id for the published item, once known.",
+            "type": [
+              "string",
+              "null"
+            ]
           },
           "error": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Why the latest delivery failed, as a sentence you can show your users. Present only when `stage` is `failed` or `dlq`; otherwise null."
+            "description": "Why the latest delivery failed, as a sentence you can show your users. Present only when `stage` is `failed` or `dlq`; otherwise null.",
+            "type": [
+              "string",
+              "null"
+            ]
           }
         },
         "required": [
@@ -5132,15 +5109,11 @@
             "description": "HTTP status returned by the endpoint, or null when the request never completed (timeout, TLS failure, blocked egress)."
           },
           "error": {
-            "anyOf": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Transport-level failure detail when no HTTP response exists."
+            "description": "Transport-level failure detail when no HTTP response exists.",
+            "type": [
+              "string",
+              "null"
+            ]
           }
         },
         "required": [