fix: HOTFIX allow default config fallback for headless

Author: RomneyDa

extensions/cli/src/configLoader.ts

@@ -13,6 +13,7 @@ import {
 import { DefaultApiInterface } from "@continuedev/sdk/dist/api/dist/index.js";
 import chalk from "chalk";
 
+import { fileURLToPath } from "node:url";
 import { uriToPath, uriToSlug } from "./auth/uriUtils.js";
 import {
   AuthConfig,
@@ -24,6 +25,7 @@ import {
 } from "./auth/workos.js";
 import { CLIPlatformClient } from "./CLIPlatformClient.js";
 import { env } from "./env.js";
+import { logger } from "./util/logger.js";
 
 export interface ConfigLoadResult {
   config: AssistantUnrolled;
@@ -95,16 +97,20 @@ function determineConfigSource(
     return { type: "cli-flag", path: cliConfigPath };
   }
 
-  // In headless, config fallback behavior isn't supported
-  if (isHeadless) {
-    return { type: "no-config" };
-  }
-
   // Priority 2: Saved config URI (only for file-based auth)
   if (!isEnvironmentAuthConfig(authConfig) && authConfig !== null) {
     const savedUri = getConfigUri(authConfig);
+
     if (savedUri) {
-      return { type: "saved-uri", uri: savedUri };
+      if (
+        fs.existsSync(
+          savedUri.startsWith("file:") ? fileURLToPath(savedUri) : savedUri,
+        )
+      ) {
+        return { type: "saved-uri", uri: savedUri };
+      } else {
+        logger.warn("Saved URI does not exists");
+      }
     }
   }
 
@@ -117,6 +123,10 @@ function determineConfigSource(
     }
     return { type: "default-agent" };
   } else {
+    // In headless, user assistant fallback behavior isn't supported
+    if (isHeadless) {
+      return { type: "no-config" };
+    }
     // Authenticated: try user assistants first
     return { type: "user-assistant", slug: "" }; // Empty slug means "first available"
   }

extensions/cli/src/services/ConfigService.ts

@@ -215,6 +215,7 @@ export class ConfigService
     config: AssistantUnrolled,
     apiClient: DefaultApiInterface,
     authConfig: AuthConfig | undefined,
+    isHeadless?: boolean,
   ): Promise<AssistantUnrolled> {
     const hasChatModel = !!config.models?.find(
       (m) => !!m && (!m.roles || m.roles.includes("chat")),
@@ -233,8 +234,16 @@ export class ConfigService
         }
         config.models = [...(config.models || []), defaultModel];
       } catch (e) {
-        logger.error("Failed to load default model with no model specified", e);
-        throw new Error("No model specified and failed to load default model");
+        if (isHeadless) {
+          throw new Error(
+            "No model specified in headless mode (and failed to load default model)",
+          );
+        } else {
+          logger.error(
+            "Failed to load default model with no model specified",
+            e,
+          );
+        }
       }
     }
     return config;
@@ -270,6 +279,7 @@ export class ConfigService
       merged,
       apiClient,
       authConfig,
+      init.isHeadless,
     );
 
     // Config URI persistence is now handled by the streamlined loader

extensions/cli/src/services/ModelService.ts

@@ -64,8 +64,9 @@ export class ModelService
       preferredModelName = agentFileServiceState.agentFileModel?.name;
       modelSource = "agentFile";
     } else {
-      preferredModelName = getModelName(authConfig);
-      if (preferredModelName) {
+      const persistedName = getModelName(authConfig);
+      if (persistedName) {
+        preferredModelName = persistedName;
         modelSource = "persisted";
       }
     }