fix : no startup sync

README.md

@@ -121,12 +121,12 @@ refetch authoritative state; SSE never contains page content and is not the
 source of truth.
 
 The Discord catalog worker watches the private channel configured by
-`DISCORD_CHANNEL_ID`. It parses Lunaris `Version Change` announcements and
-then fetches and synchronizes the latest version reported by Lunaris. On startup
-it checks recent channel history, so it does not need to poll Lunaris while idle.
+`DISCORD_CHANNEL_ID`. It parses new Lunaris `Version Change` announcements and
+then fetches and synchronizes the latest version reported by Lunaris. Startup
+only connects the listener; it does not replay channel history or start a sync.
 Worker and sync results are sent to `DISCORD_LOG_CHANNEL_ID`. Enable the Discord
-Message Content intent and grant the bot View Channel, Read Message History, and
-Send Messages in the configured channels.
+Message Content intent and grant the bot View Channel and Send Messages in the
+configured channels.
 
 Public snapshots use a shared Redis-backed Next.js cache. Admin routes remain
 dynamic. SSE streams send a 90-second heartbeat and close after 30 minutes so

backend/discord.ts

@@ -1,5 +1,4 @@
 import {
-  ChannelType,
   Client,
   Events,
   GatewayIntentBits,
@@ -144,10 +143,10 @@ async function drain(): Promise<void> {
   }
 }
 
-function enqueue(version: string, source: "history" | "message"): void {
+function enqueue(version: string): void {
   if (!pendingVersion || compareLunarisVersions(version, pendingVersion) > 0) {
     pendingVersion = version;
-    log("version_queued", { version, source });
+    log("version_queued", { version, source: "message" });
   }
   if (!runner) {
     runner = drain().finally(() => {
@@ -156,13 +155,13 @@ function enqueue(version: string, source: "history" | "message"): void {
   }
 }
 
-function handleMessage(message: Message, source: "history" | "message"): void {
+function handleMessage(message: Message): void {
   if (message.channelId !== channelId || message.author.id === client.user?.id) return;
   const change = parseLunarisVersionChange(messageText(message));
-  if (change) enqueue(change.targetVersion, source);
+  if (change) enqueue(change.targetVersion);
 }
 
-client.on(Events.MessageCreate, (message) => handleMessage(message, "message"));
+client.on(Events.MessageCreate, handleMessage);
 client.on(Events.Error, (cause) => log("discord_error", { error: cause.message }));
 client.on(Events.Warn, (message) => log("discord_warning", { message }));
 
@@ -186,18 +185,6 @@ try {
   if (!shutdown.signal.aborted) {
     log("discord_ready", { userId: client.user?.id, channelId });
     await notify("worker ready", { userId: client.user?.id, channelId });
-
-    const channel = await client.channels.fetch(channelId);
-    if (
-      !channel ||
-      (channel.type !== ChannelType.GuildText &&
-        channel.type !== ChannelType.GuildAnnouncement)
-    ) {
-      throw new Error("DISCORD_CHANNEL_ID must identify a guild text channel.");
-    }
-    const messages = await channel.messages.fetch({ limit: 25 });
-    for (const message of messages.values()) handleMessage(message, "history");
-
     await stopped;
   }
 } finally {

tests/deployment-contract.test.ts

@@ -180,4 +180,12 @@ describe("environment template contract", () => {
     expect(deployment).toContain('drop: ["ALL"]');
     expect(rbac).toContain("buzz-sheet-discord-worker");
   });
+
+  it("syncs only for new Discord version announcements", async () => {
+    const worker = await repositoryFile("backend/discord.ts");
+
+    expect(worker).toContain("client.on(Events.MessageCreate, handleMessage)");
+    expect(worker).not.toContain("channel.messages.fetch");
+    expect(worker).not.toContain('source: "history"');
+  });
 });