diff --git a/internal/atproto/lexicon/social/coves/actor/membership.json b/internal/atproto/lexicon/social/coves/actor/membership.json
index 9b9c5f7..d8f481c 100644
--- a/internal/atproto/lexicon/social/coves/actor/membership.json
+++ b/internal/atproto/lexicon/social/coves/actor/membership.json
@@ -4,7 +4,7 @@
   "defs": {
     "main": {
       "type": "record",
-      "description": "Membership in a community (has reputation)",
+      "description": "Membership in a community",
       "key": "tid",
       "record": {
         "type": "object",
@@ -21,15 +21,10 @@
             "default": 0,
             "description": "Reputation score within the community"
           },
-          "subscribedAt": {
-            "type": "string",
-            "format": "datetime",
-            "description": "When the user subscribed to a community"
-          },
           "createdAt": {
             "type": "string",
             "format": "datetime",
-            "description": "When the user was created"
+            "description": "When the user's membership started"
           },
           "endedAt": {
             "type": "string",
diff --git a/internal/atproto/lexicon/social/coves/actor/subscription.json b/internal/atproto/lexicon/social/coves/actor/subscription.json
index e3fd602..81b4537 100644
--- a/internal/atproto/lexicon/social/coves/actor/subscription.json
+++ b/internal/atproto/lexicon/social/coves/actor/subscription.json
@@ -17,7 +17,8 @@
           },
           "createdAt": {
             "type": "string",
-            "format": "datetime"
+            "format": "datetime",
+            "description": "When the subscription started"
           },
           "endedAt": {
             "type": "string",
diff --git a/internal/atproto/lexicon/social/coves/community/rules.json b/internal/atproto/lexicon/social/coves/community/rules.json
index 0948e7e..407c5cd 100644
--- a/internal/atproto/lexicon/social/coves/community/rules.json
+++ b/internal/atproto/lexicon/social/coves/community/rules.json
@@ -59,22 +59,25 @@
       "type": "object",
       "description": "Allowed post types in the community",
       "properties": {
-        "textOnly": {
+        "allowText": {
           "type": "boolean",
-          "default": false,
-          "description": "Restrict to text posts only"
+          "default": true,
+          "description": "Allow text posts"
         },
         "allowVideo": {
           "type": "boolean",
-          "default": true
+          "default": true,
+          "description": "Allow video posts"
         },
         "allowImage": {
           "type": "boolean",
-          "default": true
+          "default": true,
+          "description": "Allow image posts"
         },
         "allowArticle": {
           "type": "boolean",
-          "default": true
+          "default": true,
+          "description": "Allow Article posts"
         }
       }
     },
@@ -130,13 +133,13 @@
         "tagThreshold": {
           "type": "integer",
           "minimum": 1,
-          "default": 5,
+          "default": 15,
           "description": "Number of tags needed to trigger action"
         },
         "tribunalThreshold": {
           "type": "integer",
           "minimum": 1,
-          "default": 3,
+          "default": 50,
           "description": "Number of tags to trigger tribunal review"
         },
         "jurySize": {
@@ -146,6 +149,38 @@
           "description": "Number of jurors for tribunal"
         }
       }
+    },
+    "rule": {
+      "type": "object",
+      "description": "A text-based community rule for display purposes",
+      "required": ["title", "description", "createdAt", "isActive"],
+      "properties": {
+        "title": {
+          "type": "string",
+          "maxLength": 256,
+          "description": "Short rule title (e.g., 'No Editorialized Titles')"
+        },
+        "description": {
+          "type": "string",
+          "maxLength": 2000,
+          "description": "Detailed explanation of the rule"
+        },
+        "createdAt": {
+          "type": "string",
+          "format": "datetime",
+          "description": "When the rule was created"
+        },
+        "isActive": {
+          "type": "boolean",
+          "default": true,
+          "description": "Whether the rule is currently active"
+        },
+        "disabledAt": {
+          "type": "string",
+          "format": "datetime",
+          "description": "When the rule was disabled (optional)"
+        }
+      }
     }
   }
 }
\ No newline at end of file
diff --git a/internal/atproto/lexicon/social/coves/post/article.json b/internal/atproto/lexicon/social/coves/post/article.json
index 4880334..7c7b63c 100644
--- a/internal/atproto/lexicon/social/coves/post/article.json
+++ b/internal/atproto/lexicon/social/coves/post/article.json
@@ -86,6 +86,19 @@
             "type": "ref",
             "ref": "social.coves.actor.profile#geoLocation"
           },
+          "crosspostOf": {
+            "type": "string",
+            "format": "at-uri",
+            "description": "If this is a crosspost, AT-URI of the post this is a crosspost of"
+          },
+          "crosspostChain": {
+            "type": "array",
+            "description": "Array of AT-URIs of all posts in the crosspost chain (including this one)",
+            "items": {
+              "type": "string",
+              "format": "at-uri"
+            }
+          },
           "createdAt": {
             "type": "string",
             "format": "datetime"
diff --git a/internal/atproto/lexicon/social/coves/post/crosspost.json b/internal/atproto/lexicon/social/coves/post/crosspost.json
new file mode 100644
index 0000000..5f338ab
--- /dev/null
+++ b/internal/atproto/lexicon/social/coves/post/crosspost.json
@@ -0,0 +1,39 @@
+{
+  "lexicon": 1,
+  "id": "social.coves.post.crosspost",
+  "defs": {
+    "main": {
+      "type": "record",
+      "description": "A record tracking crosspost relationships between posts",
+      "key": "tid",
+      "record": {
+        "type": "object",
+        "required": ["originalPost", "crosspostOf", "createdAt"],
+        "properties": {
+          "originalPost": {
+            "type": "string",
+            "format": "at-uri",
+            "description": "AT-URI of the original post in the crosspost chain"
+          },
+          "crosspostOf": {
+            "type": "string",
+            "format": "at-uri",
+            "description": "AT-URI of the immediate parent this is a crosspost of"
+          },
+          "allCrossposts": {
+            "type": "array",
+            "description": "Array of AT-URIs of all posts in the crosspost chain",
+            "items": {
+              "type": "string",
+              "format": "at-uri"
+            }
+          },
+          "createdAt": {
+            "type": "string",
+            "format": "datetime"
+          }
+        }
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/internal/atproto/lexicon/social/coves/post/getCrosspostChain.json b/internal/atproto/lexicon/social/coves/post/getCrosspostChain.json
new file mode 100644
index 0000000..03552c9
--- /dev/null
+++ b/internal/atproto/lexicon/social/coves/post/getCrosspostChain.json
@@ -0,0 +1,99 @@
+{
+  "lexicon": 1,
+  "id": "social.coves.post.getCrosspostChain",
+  "defs": {
+    "main": {
+      "type": "procedure",
+      "description": "Get all crossposts in a crosspost chain for a given post",
+      "input": {
+        "encoding": "application/json",
+        "schema": {
+          "type": "object",
+          "required": ["uri"],
+          "properties": {
+            "uri": {
+              "type": "string",
+              "format": "at-uri",
+              "description": "AT-URI of any post in the crosspost chain"
+            }
+          }
+        }
+      },
+      "output": {
+        "encoding": "application/json",
+        "schema": {
+          "type": "object",
+          "required": ["crossposts"],
+          "properties": {
+            "crossposts": {
+              "type": "array",
+              "description": "All posts in the crosspost chain",
+              "items": {
+                "type": "ref",
+                "ref": "#crosspostView"
+              }
+            }
+          }
+        }
+      }
+    },
+    "crosspostView": {
+      "type": "object",
+      "required": ["uri", "community", "author", "createdAt"],
+      "properties": {
+        "uri": {
+          "type": "string",
+          "format": "at-uri",
+          "description": "AT-URI of the post"
+        },
+        "community": {
+          "type": "object",
+          "required": ["uri", "name"],
+          "properties": {
+            "uri": {
+              "type": "string",
+              "format": "at-uri",
+              "description": "AT-URI of the community"
+            },
+            "name": {
+              "type": "string",
+              "description": "Display name of the community"
+            },
+            "handle": {
+              "type": "string",
+              "description": "Handle of the community"
+            }
+          }
+        },
+        "author": {
+          "type": "object",
+          "required": ["did", "handle"],
+          "properties": {
+            "did": {
+              "type": "string",
+              "format": "did"
+            },
+            "handle": {
+              "type": "string"
+            },
+            "displayName": {
+              "type": "string"
+            },
+            "avatar": {
+              "type": "string",
+              "format": "uri"
+            }
+          }
+        },
+        "isOriginal": {
+          "type": "boolean",
+          "description": "Whether this is the original post in the chain"
+        },
+        "createdAt": {
+          "type": "string",
+          "format": "datetime"
+        }
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/internal/atproto/lexicon/social/coves/post/image.json b/internal/atproto/lexicon/social/coves/post/image.json
index b77f115..c1339d5 100644
--- a/internal/atproto/lexicon/social/coves/post/image.json
+++ b/internal/atproto/lexicon/social/coves/post/image.json
@@ -73,6 +73,19 @@
             "type": "ref",
             "ref": "social.coves.actor.profile#geoLocation"
           },
+          "crosspostOf": {
+            "type": "string",
+            "format": "at-uri",
+            "description": "If this is a crosspost, AT-URI of the post this is a crosspost of"
+          },
+          "crosspostChain": {
+            "type": "array",
+            "description": "Array of AT-URIs of all posts in the crosspost chain (including this one)",
+            "items": {
+              "type": "string",
+              "format": "at-uri"
+            }
+          },
           "createdAt": {
             "type": "string",
             "format": "datetime"
diff --git a/internal/atproto/lexicon/social/coves/post/microblog.json b/internal/atproto/lexicon/social/coves/post/microblog.json
index 651d8a5..2b908a5 100644
--- a/internal/atproto/lexicon/social/coves/post/microblog.json
+++ b/internal/atproto/lexicon/social/coves/post/microblog.json
@@ -119,6 +119,19 @@
             "maxLength": 10,
             "description": "Language code (e.g., 'en', 'es', 'fr')"
           },
+          "crosspostOf": {
+            "type": "string",
+            "format": "at-uri",
+            "description": "If this is a crosspost, AT-URI of the post this is a crosspost of"
+          },
+          "crosspostChain": {
+            "type": "array",
+            "description": "Array of AT-URIs of all posts in the crosspost chain (including this one)",
+            "items": {
+              "type": "string",
+              "format": "at-uri"
+            }
+          },
           "createdAt": {
             "type": "string",
             "format": "datetime"
diff --git a/internal/atproto/lexicon/social/coves/post/text.json b/internal/atproto/lexicon/social/coves/post/text.json
index ca71552..3a98bf8 100644
--- a/internal/atproto/lexicon/social/coves/post/text.json
+++ b/internal/atproto/lexicon/social/coves/post/text.json
@@ -74,6 +74,19 @@
               "social.coves.embed.post"
             ]
           },
+          "crosspostOf": {
+            "type": "string",
+            "format": "at-uri",
+            "description": "If this is a crosspost, AT-URI of the post this is a crosspost of"
+          },
+          "crosspostChain": {
+            "type": "array",
+            "description": "Array of AT-URIs of all posts in the crosspost chain (including this one)",
+            "items": {
+              "type": "string",
+              "format": "at-uri"
+            }
+          },
           "createdAt": {
             "type": "string",
             "format": "datetime"
diff --git a/internal/atproto/lexicon/social/coves/post/video.json b/internal/atproto/lexicon/social/coves/post/video.json
index fa39cd9..331e793 100644
--- a/internal/atproto/lexicon/social/coves/post/video.json
+++ b/internal/atproto/lexicon/social/coves/post/video.json
@@ -72,6 +72,19 @@
             "type": "ref",
             "ref": "social.coves.actor.profile#geoLocation"
           },
+          "crosspostOf": {
+            "type": "string",
+            "format": "at-uri",
+            "description": "If this is a crosspost, AT-URI of the post this is a crosspost of"
+          },
+          "crosspostChain": {
+            "type": "array",
+            "description": "Array of AT-URIs of all posts in the crosspost chain (including this one)",
+            "items": {
+              "type": "string",
+              "format": "at-uri"
+            }
+          },
           "createdAt": {
             "type": "string",
             "format": "datetime"