Merge PR #6973: fix(coding-agent): share parent local:// root with /tan clone (@roboomp)

packages/coding-agent/src/modes/controllers/tan-command-controller.ts

@@ -80,6 +80,19 @@ export class TanCommandController {
 		const ownerId = session.getAgentId() ?? MAIN_AGENT_ID;
 		const mcpManager = this.ctx.mcpManager;
 		const cwd = this.ctx.sessionManager.getCwd();
+		const parentArtifactsDir = this.ctx.sessionManager.getArtifactsDir();
+		// Snapshot the parent session's local:// mapping when dispatching. The
+		// interactive SessionManager is mutable and may switch transcripts while
+		// this background tan is still running. Use the session-manager id (not
+		// `session.sessionId`, which can diverge after `/fresh` or a provider
+		// session override) so the tan resolves the same local root the parent's
+		// large-paste writes and `local://` reads use — notably the Windows
+		// short-root fallback keys `%TEMP%/omp-local/<id>` off this id.
+		const parentLocalSessionId = this.ctx.sessionManager.getSessionId();
+		const localProtocolOptions = {
+			getArtifactsDir: () => parentArtifactsDir,
+			getSessionId: () => parentLocalSessionId,
+		};
 		// Nest the clone inside the parent's artifact directory (like a subagent
 		// session) rather than as a top-level sibling, so it shares the parent's
 		// artifacts in place — no copy needed.
@@ -132,6 +145,7 @@ export class TanCommandController {
 							parentAgentId: ownerId,
 							agentRegistry,
 							disableExtensionDiscovery: true,
+							localProtocolOptions,
 						});
 						clone = created.session;
 						clone.sessionManager?.appendSessionInit?.({