feat(code): add /clear command to reset conversation history

Adds /clear slash command that resets conversation history and starts a
fresh session. Suppresses the SDK's built-in /clear (which doesn't work
in our context) and replaces it with our own implementation.
resetSession() now clears UI history by skipping log replay on reconnect.

Author: littlekirkycode

apps/code/src/renderer/features/message-editor/commands.ts

@@ -51,6 +51,21 @@ const commands: CodeCommand[] = [
   makeFeedbackCommand("good", "good", "Positive"),
   makeFeedbackCommand("bad", "bad", "Negative"),
   makeFeedbackCommand("feedback", "general", "General"),
+  {
+    name: "clear",
+    description: "Clear conversation history and start fresh",
+    async execute(_args, ctx) {
+      if (!ctx.repoPath || !ctx.taskId) {
+        toast.error("Cannot clear: no active session");
+        return;
+      }
+      const { getSessionService } = await import(
+        "@features/sessions/service/service"
+      );
+      await getSessionService().resetSession(ctx.taskId, ctx.repoPath);
+      toast.success("Conversation cleared");
+    },
+  },
 ];
 
 export const CODE_COMMANDS: AvailableCommand[] = commands.map((cmd) => ({

apps/code/src/renderer/features/sessions/service/service.ts

@@ -1751,7 +1751,7 @@ export class SessionService {
    * session instead of attempting to resume the stale one.
    */
   async resetSession(taskId: string, repoPath: string): Promise<void> {
-    await this.reconnectInPlace(taskId, repoPath, null);
+    await this.reconnectInPlace(taskId, repoPath, null, true);
   }
 
   /**
@@ -1768,6 +1768,7 @@ export class SessionService {
     taskId: string,
     repoPath: string,
     overrideSessionId?: string | null,
+    clearHistory = false,
   ): Promise<void> {
     const session = sessionStoreSetters.getSessionByTaskId(taskId);
     if (!session) return;
@@ -1788,7 +1789,13 @@ export class SessionService {
       throw new Error("Unable to reach server. Please check your connection.");
     }
 
-    const prefetchedLogs = await this.fetchSessionLogs(logUrl, taskRunId);
+    const prefetchedLogs = clearHistory
+      ? {
+          rawEntries: [] as StoredLogEntry[],
+          sessionId: undefined,
+          adapter: undefined as Adapter | undefined,
+        }
+      : await this.fetchSessionLogs(logUrl, taskRunId);
 
     // Determine sessionId: undefined = use from logs, null = strip (fresh), string = use as-is
     const sessionId =

packages/agent/src/adapters/claude/session/commands.ts

@@ -2,6 +2,7 @@ import type { AvailableCommand } from "@agentclientprotocol/sdk";
 import type { SlashCommand } from "@anthropic-ai/claude-agent-sdk";
 
 const UNSUPPORTED_COMMANDS = [
+  "clear",
   "context",
   "cost",
   "keybindings-help",