fix(regression): preserve discord thread bindings for plugin commands

src/plugins/commands.test.ts

@@ -243,6 +243,24 @@ describe("registerPluginCommand", () => {
     });
   });
 
+  it("resolves Discord thread command bindings with parent channel context intact", () => {
+    expect(
+      __testing.resolveBindingConversationFromCommand({
+        channel: "discord",
+        from: "discord:channel:1480554272859881494",
+        accountId: "default",
+        messageThreadId: "thread-42",
+        threadParentId: "channel-parent-7",
+      }),
+    ).toEqual({
+      channel: "discord",
+      accountId: "default",
+      conversationId: "channel:1480554272859881494",
+      parentConversationId: "channel-parent-7",
+      threadId: "thread-42",
+    });
+  });
+
   it("resolves Telegram topic command bindings without a Telegram registry entry", () => {
     expect(
       __testing.resolveBindingConversationFromCommand({

src/plugins/commands.ts

@@ -148,6 +148,7 @@ function resolveBindingConversationFromCommand(params: {
   to?: string;
   accountId?: string;
   messageThreadId?: string | number;
+  threadParentId?: string;
 }): {
   channel: string;
   accountId: string;
@@ -199,6 +200,8 @@ function resolveBindingConversationFromCommand(params: {
         "conversationId" in target
           ? target.conversationId
           : `${target.chatType === "direct" ? "user" : "channel"}:${target.to}`,
+      parentConversationId: params.threadParentId?.trim() || undefined,
+      threadId: params.messageThreadId,
     };
   }
   return null;
@@ -224,6 +227,7 @@ export async function executePluginCommand(params: {
   to?: PluginCommandContext["to"];
   accountId?: PluginCommandContext["accountId"];
   messageThreadId?: PluginCommandContext["messageThreadId"];
+  threadParentId?: PluginCommandContext["threadParentId"];
 }): Promise<PluginCommandResult> {
   const { command, args, senderId, channel, isAuthorizedSender, commandBody, config } = params;
 
@@ -244,6 +248,7 @@ export async function executePluginCommand(params: {
     to: params.to,
     accountId: params.accountId,
     messageThreadId: params.messageThreadId,
+    threadParentId: params.threadParentId,
   });
 
   const ctx: PluginCommandContext = {
@@ -259,6 +264,7 @@ export async function executePluginCommand(params: {
     to: params.to,
     accountId: params.accountId,
     messageThreadId: params.messageThreadId,
+    threadParentId: params.threadParentId,
     requestConversationBinding: async (bindingParams) => {
       if (!command.pluginRoot || !bindingConversation) {
         return {

src/plugins/types.ts

@@ -1178,6 +1178,8 @@ export type PluginCommandContext = {
   accountId?: string;
   /** Thread/topic id if available */
   messageThreadId?: string | number;
+  /** Parent conversation id for thread-capable channels */
+  threadParentId?: string;
   requestConversationBinding: (
     params?: PluginConversationBindingRequestParams,
   ) => Promise<PluginConversationBindingRequestResult>;