refactor: remove redundant UI event handling in workflows

- Removed unnecessary string conversion for userInput in code_generator and deep_research workflows.
- Updated userRequest type to MessageContent for better type safety.
- Cleaned up the UI event component by removing redundant indicatorClassName logic.

.changeset/calm-women-repair.md

@@ -0,0 +1,5 @@
+---
+"create-llama": patch
+---
+
+Split artifacts use case to document generator and code generator

.changeset/fifty-badgers-jog.md

@@ -0,0 +1,5 @@
+---
+"create-llama": patch
+---
+
+Fix typing check issue

.changeset/five-buses-bake.md

@@ -0,0 +1,5 @@
+---
+"create-llama": patch
+---
+
+fix chromadb dependency issue

.changeset/silent-ladybugs-hear.md

@@ -0,0 +1,5 @@
+---
+"create-llama": patch
+---
+
+fix: remove dead generated ai code

.changeset/tired-regions-notice.md

@@ -0,0 +1,5 @@
+---
+"create-llama": patch
+---
+
+Deprecate pro mode

.github/workflows/e2e.yml

@@ -79,7 +79,7 @@ jobs:
       - uses: actions/upload-artifact@v4
         if: always()
         with:
-          name: playwright-report-python-${{ matrix.os }}-${{ matrix.frameworks }}-${{ matrix.datasources }}-${{ matrix.template-types }}
+          name: playwright-report-python-${{ matrix.os }}-${{ matrix.frameworks }}-${{ matrix.datasources }}
           path: packages/create-llama/playwright-report/
           overwrite: true
           retention-days: 30
@@ -136,21 +136,6 @@ jobs:
         run: pnpm run pack-install
         working-directory: packages/create-llama
 
-      - name: Build server
-        run: pnpm run build
-        working-directory: packages/server
-
-      - name: Pack @llamaindex/server package
-        run: |
-          pnpm pack --pack-destination "${{ runner.temp }}"
-          if [ "${{ runner.os }}" == "Windows" ]; then
-            file=$(find "${{ runner.temp }}" -name "llamaindex-server-*.tgz" | head -n 1)
-            mv "$file" "${{ runner.temp }}/llamaindex-server.tgz"
-          else
-            mv ${{ runner.temp }}/llamaindex-server-*.tgz ${{ runner.temp }}/llamaindex-server.tgz
-          fi
-        working-directory: packages/server
-
       - name: Run Playwright tests for TypeScript
         run: pnpm run e2e:typescript
         env:
@@ -159,13 +144,12 @@ jobs:
           FRAMEWORK: ${{ matrix.frameworks }}
           DATASOURCE: ${{ matrix.datasources }}
           TEMPLATE_TYPE: ${{ matrix.template-types }}
-          SERVER_PACKAGE_PATH: ${{ runner.temp }}/llamaindex-server.tgz
         working-directory: packages/create-llama
 
       - uses: actions/upload-artifact@v4
         if: always()
         with:
-          name: playwright-report-typescript-${{ matrix.os }}-${{ matrix.frameworks }}-${{ matrix.datasources }}-node${{ matrix.node-version }}-${{ matrix.template-types }}
+          name: playwright-report-typescript-${{ matrix.os }}-${{ matrix.frameworks }}-${{ matrix.datasources }}-node${{ matrix.node-version }}
           path: packages/create-llama/playwright-report/
           overwrite: true
           retention-days: 30

packages/create-llama/CHANGELOG.md

@@ -1,29 +1,5 @@
 # create-llama
 
-## 0.5.16
-
-### Patch Changes
-
-- 6f75d4a: fix: unsupported language in code gen workflow
-- d0618fa: Fix LlamaCloud generate script issue
-
-## 0.5.15
-
-### Patch Changes
-
-- 527075c: Enable dev mode that allows updating code directly in the UI
-
-## 0.5.14
-
-### Patch Changes
-
-- 1df8cfb: Split artifacts use case to document generator and code generator
-- 1b5a519: chore: improve dev experience with nodemon
-- b3eb0ba: Fix typing check issue
-- 556f33c: fix chromadb dependency issue
-- 2451539: fix: remove dead generated ai code
-- 7a70390: Deprecate pro mode
-
 ## 0.5.13
 
 ### Patch Changes

packages/create-llama/e2e/shared/llamaindexserver_template.spec.ts

@@ -12,30 +12,21 @@ import { createTestDir, runCreateLlama, type AppType } from "../utils";
 const templateFramework: TemplateFramework = process.env.FRAMEWORK
   ? (process.env.FRAMEWORK as TemplateFramework)
   : "fastapi";
-const dataSource: string = process.env.DATASOURCE
-  ? (process.env.DATASOURCE as string)
-  : "--example-file";
-const llamaCloudProjectName = "create-llama";
-const llamaCloudIndexName = "e2e-test";
-
+const dataSource: string = "--example-file";
 const templateUI: TemplateUI = "shadcn";
 const templatePostInstallAction: TemplatePostInstallAction = "runApp";
 const appType: AppType = "--frontend";
 const userMessage = "Write a blog post about physical standards for letters";
-const templateUseCases = [
-  "agentic_rag",
-  "financial_report",
-  "deep_research",
-  "code_generator",
-];
+const templateUseCases = ["financial_report", "agentic_rag", "deep_research"];
 
 for (const useCase of templateUseCases) {
   test.describe(`Test use case ${useCase} ${templateFramework} ${dataSource} ${templateUI} ${appType} ${templatePostInstallAction}`, async () => {
     test.skip(
-      dataSource === "--no-files" || templateFramework === "express",
+      process.platform !== "linux" ||
+        process.env.DATASOURCE === "--no-files" ||
+        templateFramework === "express",
       "The llamaindexserver template currently only works with nextjs, fastapi. We also only run on Linux to speed up tests.",
     );
-    const useLlamaParse = dataSource === "--llamacloud";
     let port: number;
     let cwd: string;
     let name: string;
@@ -57,9 +48,6 @@ for (const useCase of templateUseCases) {
         templateUI,
         appType,
         useCase,
-        llamaCloudProjectName,
-        llamaCloudIndexName,
-        useLlamaParse,
       });
       name = result.projectName;
       appProcess = result.appProcess;

packages/create-llama/helpers/index.ts

@@ -18,7 +18,6 @@ import {
   ModelConfig,
   TemplateDataSource,
   TemplateFramework,
-  TemplateUseCase,
   TemplateVectorDB,
 } from "./types";
 import { installTSTemplate } from "./typescript";
@@ -61,7 +60,6 @@ async function generateContextData(
   vectorDb?: TemplateVectorDB,
   llamaCloudKey?: string,
   useLlamaParse?: boolean,
-  useCase?: TemplateUseCase,
 ) {
   if (packageManager) {
     const runGenerate = `${cyan(
@@ -98,12 +96,7 @@ async function generateContextData(
         }
       } else {
         console.log(`Running ${runGenerate} to generate the context data.`);
-        const shouldRunGenerate =
-          useCase !== "code_generator" && useCase !== "document_generator"; // Artifact use case doesn't use index.
-
-        if (shouldRunGenerate) {
-          await callPackageManager(packageManager, true, ["run", "generate"]);
-        }
+        await callPackageManager(packageManager, true, ["run", "generate"]);
         return;
       }
     }
@@ -231,7 +224,6 @@ export const installTemplate = async (
         props.vectorDb,
         props.llamaCloudKey,
         props.useLlamaParse,
-        props.useCase,
       );
     }
 

packages/create-llama/helpers/python.ts

@@ -267,7 +267,7 @@ const getAdditionalDependencies = (
     if (observability === "traceloop") {
       dependencies.push({
         name: "traceloop-sdk",
-        version: ">=0.15.11",
+        version: ">=0.15.11,<0.16.0",
       });
     }
     if (observability === "llamatrace") {
@@ -677,7 +677,6 @@ export const installPythonTemplate = async ({
     dataSources,
     tools,
     template,
-    observability,
   );
 
   await addDependencies(root, addOnDependencies);

packages/create-llama/helpers/typescript.ts

@@ -387,7 +387,7 @@ const providerDependencies: {
   [key in ModelProvider]?: Record<string, string>;
 } = {
   openai: {
-    "@llamaindex/openai": "~0.4.0",
+    "@llamaindex/openai": "^0.3.7",
   },
   gemini: {
     "@llamaindex/google": "^0.2.0",
@@ -513,7 +513,7 @@ async function updatePackageJson({
   if (backend) {
     packageJson.dependencies = {
       ...packageJson.dependencies,
-      "@llamaindex/readers": "~3.1.4",
+      "@llamaindex/readers": "^3.1.3",
     };
 
     if (vectorDb && vectorDb in vectorDbDependencies) {
@@ -543,16 +543,6 @@ async function updatePackageJson({
     };
   }
 
-  // if having custom server package tgz file, use it for testing @llamaindex/server
-  const serverPackagePath = process.env.SERVER_PACKAGE_PATH;
-  if (serverPackagePath && template === "llamaindexserver") {
-    const relativePath = path.relative(process.cwd(), serverPackagePath);
-    packageJson.dependencies = {
-      ...packageJson.dependencies,
-      "@llamaindex/server": `file:${relativePath}`,
-    };
-  }
-
   await fs.writeFile(
     packageJsonFile,
     JSON.stringify(packageJson, null, 2) + os.EOL,

packages/create-llama/package.json

@@ -1,6 +1,6 @@
 {
   "name": "create-llama",
-  "version": "0.5.16",
+  "version": "0.5.13",
   "description": "Create LlamaIndex-powered apps with one command",
   "keywords": [
     "rag",

packages/create-llama/questions/ci.ts

@@ -6,7 +6,7 @@ const defaults: Omit<QuestionArgs, "modelConfig"> = {
   framework: "nextjs",
   ui: "shadcn",
   frontend: false,
-  llamaCloudKey: undefined,
+  llamaCloudKey: "",
   useLlamaParse: false,
   communityProjectConfig: undefined,
   llamapack: "",

packages/create-llama/templates/components/reflex/contract_review/pyproject.toml

@@ -12,7 +12,7 @@ dependencies = [
     "llama-index>=0.12.1",
     "llama-parse>=0.6.21,<0.7.0",
     "cachetools>=5.3.3",
-    "reflex==0.7.10",
+    "reflex>=0.6.2.post1",
 ]
 
 [project.scripts]

packages/create-llama/templates/components/reflex/extractor/pyproject.toml

@@ -13,7 +13,7 @@ dependencies = [
     "llama-index>=0.12.1",
     "llama-parse>=0.6.21,<0.7.0",
     "cachetools>=5.3.3",
-    "reflex==0.7.10",
+    "reflex>=0.6.2.post1",
 ]
 
 [project.scripts]

packages/create-llama/templates/components/use-cases/typescript/code_generator/src/app/workflow.ts

@@ -1,5 +1,5 @@
 import { extractLastArtifact } from "@llamaindex/server";
-import { ChatMemoryBuffer, MessageContent, Settings } from "llamaindex";
+import { ChatMemoryBuffer, LLM, MessageContent, Settings } from "llamaindex";
 
 import {
   agentStreamEvent,
@@ -12,6 +12,12 @@ import {
 
 import { z } from "zod";
 
+export const workflowFactory = async (reqBody: any) => {
+  const workflow = createCodeArtifactWorkflow(reqBody);
+
+  return workflow;
+};
+
 export const RequirementSchema = z.object({
   next_step: z.enum(["answering", "coding"]),
   language: z.string().nullable().optional(),
@@ -65,33 +71,34 @@ const artifactEvent = workflowEvent<{
   };
 }>();
 
-export function workflowFactory(reqBody: any) {
-  const llm = Settings.llm;
-
+export function createCodeArtifactWorkflow(reqBody: any, llm?: LLM) {
+  if (!llm) {
+    llm = Settings.llm;
+  }
   const { withState, getContext } = createStatefulMiddleware(() => {
     return {
-      memory: new ChatMemoryBuffer({ llm }),
+      memory: new ChatMemoryBuffer({
+        llm,
+        chatHistory: reqBody.chatHistory,
+      }),
       lastArtifact: extractLastArtifact(reqBody),
     };
   });
   const workflow = withState(createWorkflow());
 
-  workflow.handle([startAgentEvent], async ({ data }) => {
-    const { userInput, chatHistory = [] } = data;
+  workflow.handle([startAgentEvent], async ({ data: { userInput } }) => {
     // Prepare chat history
     const { state } = getContext();
     // Put user input to the memory
     if (!userInput) {
       throw new Error("Missing user input to start the workflow");
     }
-    state.memory.set(chatHistory);
-    state.memory.put({ role: "user", content: userInput });
-
+    state.memory.put({
+      role: "user",
+      content: userInput,
+    });
     return planEvent.with({
       userInput: userInput,
-      context: state.lastArtifact
-        ? JSON.stringify(state.lastArtifact)
-        : undefined,
     });
   });
 

packages/create-llama/templates/components/use-cases/typescript/document_generator/src/app/workflow.ts

@@ -1,5 +1,5 @@
 import { extractLastArtifact } from "@llamaindex/server";
-import { ChatMemoryBuffer, MessageContent, Settings } from "llamaindex";
+import { ChatMemoryBuffer, LLM, MessageContent, Settings } from "llamaindex";
 
 import {
   agentStreamEvent,
@@ -12,6 +12,12 @@ import {
 
 import { z } from "zod";
 
+export const workflowFactory = async (reqBody: any) => {
+  const workflow = createDocumentArtifactWorkflow(reqBody);
+
+  return workflow;
+};
+
 export const DocumentRequirementSchema = z.object({
   type: z.enum(["markdown", "html"]),
   title: z.string(),
@@ -68,28 +74,32 @@ const artifactEvent = workflowEvent<{
   };
 }>();
 
-export function workflowFactory(reqBody: any) {
-  const llm = Settings.llm;
-
+export function createDocumentArtifactWorkflow(reqBody: any, llm?: LLM) {
+  if (!llm) {
+    llm = Settings.llm;
+  }
   const { withState, getContext } = createStatefulMiddleware(() => {
     return {
-      memory: new ChatMemoryBuffer({ llm }),
+      memory: new ChatMemoryBuffer({
+        llm,
+        chatHistory: reqBody.chatHistory,
+      }),
       lastArtifact: extractLastArtifact(reqBody),
     };
   });
   const workflow = withState(createWorkflow());
 
-  workflow.handle([startAgentEvent], async ({ data }) => {
-    const { userInput, chatHistory = [] } = data;
+  workflow.handle([startAgentEvent], async ({ data: { userInput } }) => {
     // Prepare chat history
     const { state } = getContext();
     // Put user input to the memory
     if (!userInput) {
       throw new Error("Missing user input to start the workflow");
     }
-    state.memory.set(chatHistory);
-    state.memory.put({ role: "user", content: userInput });
-
+    state.memory.put({
+      role: "user",
+      content: userInput,
+    });
     return planEvent.with({
       userInput,
       context: state.lastArtifact

packages/create-llama/templates/components/vectordbs/llamaindexserver/llamacloud/python/generate.py

@@ -12,12 +12,11 @@ from llama_index.server.services.llamacloud.generate import (
     load_to_llamacloud,
 )
 
-
 logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger()
 
 
-def generate_index():
+def generate_datasource():
     init_settings()
     logger.info("Generate index for the provided data")
 
@@ -28,26 +27,5 @@ def generate_index():
     load_to_llamacloud(index, logger=logger)
 
 
-def generate_ui_for_workflow():
-    """
-    Generate UI for UIEventData event in app/workflow.py
-    """
-    import asyncio
-    from llama_index.llms.openai import OpenAI
-    from main import COMPONENT_DIR
-
-    # To generate UI components for additional event types,
-    # import the corresponding data model (e.g., MyCustomEventData)
-    # and run the generate_ui_for_workflow function with the imported model.
-    # Make sure the output filename of the generated UI component matches the event type (here `ui_event`)
-    try:
-        from app.workflow import UIEventData  # type: ignore
-    except ImportError:
-        raise ImportError("Couldn't generate UI component for the current workflow.")
-    from llama_index.server.gen_ui import generate_event_component
-
-    # works also well with Claude 3.7 Sonnet or Gemini Pro 2.5
-    llm = OpenAI(model="gpt-4.1")
-    code = asyncio.run(generate_event_component(event_cls=UIEventData, llm=llm))
-    with open(f"{COMPONENT_DIR}/ui_event.jsx", "w") as f:
-        f.write(code)
+if __name__ == "__main__":
+    generate_datasource()

packages/create-llama/templates/components/vectordbs/llamaindexserver/llamacloud/typescript/generate.ts

@@ -1,8 +1,7 @@
-import { generateEventComponent } from "@llamaindex/server";
 import * as dotenv from "dotenv";
 import "dotenv/config";
 import * as fs from "fs/promises";
-import { LLamaCloudFileService, OpenAI } from "llamaindex";
+import { LLamaCloudFileService } from "llamaindex";
 import * as path from "path";
 import { getIndex } from "./app/data";
 import { initSettings } from "./app/settings";
@@ -89,7 +88,7 @@ async function loadAndIndex() {
   console.log(`Successfully uploaded documents to LlamaCloud!`);
 }
 
-async function generateDatasource() {
+(async () => {
   try {
     checkRequiredEnvVars();
     initSettings();
@@ -98,39 +97,4 @@ async function generateDatasource() {
   } catch (error) {
     console.error("Error generating storage.", error);
   }
-}
-
-async function generateUi() {
-  // Also works well with Claude 3.5 Sonnet and Google Gemini 2.5 Pro
-  const llm = new OpenAI({ model: "gpt-4.1" });
-
-  const workflowModule = await import("./app/workflow");
-  const UIEventSchema = (workflowModule as any).UIEventSchema;
-  if (!UIEventSchema) {
-    throw new Error(
-      "To generate the UI, you must define a UIEventSchema in your workflow.",
-    );
-  }
-
-  const generatedCode = await generateEventComponent(UIEventSchema, llm);
-  // Write the generated code to components/ui_event.ts
-  await fs.writeFile("components/ui_event.jsx", generatedCode);
-}
-
-(async () => {
-  const args = process.argv.slice(2);
-  const command = args[0];
-
-  initSettings();
-
-  if (command === "datasource") {
-    await generateDatasource();
-  } else if (command === "ui") {
-    await generateUi();
-  } else {
-    console.error(
-      'Invalid command. Please use "datasource" or "ui". Running "datasource" by default.',
-    );
-    await generateDatasource(); // Default behavior or could throw an error
-  }
 })();

packages/create-llama/templates/types/llamaindexserver/fastapi/app/settings.py

@@ -1,12 +1,8 @@
-import os
-
 from llama_index.core import Settings
 from llama_index.embeddings.openai import OpenAIEmbedding
 from llama_index.llms.openai import OpenAI
 
 
 def init_settings():
-    if os.getenv("OPENAI_API_KEY") is None:
-        raise RuntimeError("OPENAI_API_KEY is missing in environment variables")
     Settings.llm = OpenAI(model="gpt-4o-mini")
     Settings.embed_model = OpenAIEmbedding(model="text-embedding-3-small")

packages/create-llama/templates/types/llamaindexserver/fastapi/main.py

@@ -17,10 +17,8 @@ def create_app():
         ui_config=UIConfig(
             component_dir=COMPONENT_DIR,
             app_title="Chat App",
-            dev_mode=True,  # Please disable this in production
         ),
         logger=logger,
-        env="dev",
     )
     # You can also add custom FastAPI routes to app
     app.add_api_route("/api/health", lambda: {"message": "OK"}, status_code=200)

packages/create-llama/templates/types/llamaindexserver/fastapi/pyproject.toml

@@ -12,7 +12,7 @@ dependencies = [
     "pydantic<2.10",
     "aiostream>=0.5.2,<0.6.0",
     "llama-index-core>=0.12.28,<0.13.0",
-    "llama-index-server>=0.1.16,<0.2.0",
+    "llama-index-server>=0.1.15,<0.2.0",
 ]
 
 [project.optional-dependencies]

packages/create-llama/templates/types/llamaindexserver/nextjs/nodemon.json

@@ -1,6 +0,0 @@
-{
-  "watch": ["src/**/*.ts"],
-  "exec": "nodemon --exec tsx src/index.ts",
-  "ext": "js ts",
-  "ignore": ["src/app/workflow_*.ts"]
-}

packages/create-llama/templates/types/llamaindexserver/nextjs/package.json

@@ -5,22 +5,21 @@
     "generate": "tsx src/generate.ts datasource",
     "generate:datasource": "tsx src/generate.ts datasource",
     "generate:ui": "tsx src/generate.ts ui",
-    "dev": "nodemon",
+    "dev": "tsx watch src/index.ts",
     "start": "tsx src/index.ts"
   },
   "dependencies": {
-    "@llamaindex/openai": "~0.4.0",
-    "@llamaindex/server": "~0.2.1",
-    "@llamaindex/workflow": "~1.1.3",
-    "@llamaindex/tools": "~0.0.11",
-    "llamaindex": "~0.11.0",
+    "@llamaindex/openai": "^0.3.7",
+    "@llamaindex/server": "^0.2.0",
+    "@llamaindex/workflow": "^1.1.2",
+    "@llamaindex/tools": "^0.0.10",
+    "llamaindex": "^0.10.6",
     "dotenv": "^16.4.7",
     "zod": "^3.23.8"
   },
   "devDependencies": {
     "@types/node": "^20.10.3",
     "tsx": "^4.7.2",
-    "typescript": "^5.3.2",
-    "nodemon": "^3.1.10"
+    "typescript": "^5.3.2"
   }
 }

packages/create-llama/templates/types/llamaindexserver/nextjs/src/generate.ts

@@ -1,10 +1,14 @@
 import "dotenv/config";
 import { SimpleDirectoryReader } from "@llamaindex/readers/directory";
-import { storageContextFromDefaults, VectorStoreIndex } from "llamaindex";
+import {
+  OpenAI,
+  storageContextFromDefaults,
+  VectorStoreIndex,
+} from "llamaindex";
 import { initSettings } from "./app/settings";
 import fs from "fs";
 import { generateEventComponent } from "@llamaindex/server";
-import { OpenAI } from "@llamaindex/openai";
+import { UIEventSchema } from "./app/workflow";
 
 async function generateDatasource() {
   console.log(`Generating storage context...`);
@@ -26,14 +30,6 @@ async function generateUi() {
   // Also works well with Claude 3.5 Sonnet and Google Gemini 2.5 Pro
   const llm = new OpenAI({ model: "gpt-4.1" });
 
-  const workflowModule = await import("./app/workflow");
-  const UIEventSchema = (workflowModule as any).UIEventSchema;
-  if (!UIEventSchema) {
-    throw new Error(
-      "To generate the UI, you must define a UIEventSchema in your workflow.",
-    );
-  }
-
   // You can also generate for other workflow events
   const generatedCode = await generateEventComponent(UIEventSchema, llm);
   // Write the generated code to components/ui_event.ts

packages/create-llama/templates/types/llamaindexserver/nextjs/src/index.ts

@@ -10,6 +10,5 @@ new LlamaIndexServer({
   uiConfig: {
     appTitle: "LlamaIndex App",
     componentsDir: "components",
-    devMode: true,
   },
 }).start();

packages/server/.gitignore

@@ -1,5 +1 @@
-# server contains Nextjs frontend code (not compiled)
-server/
-
-# temp is the copy of next folder but without API folder, used to build frontend static files
-temp/
+server/

packages/server/CHANGELOG.md

@@ -1,18 +1,5 @@
 # @llamaindex/server
 
-## 0.2.2
-
-### Patch Changes
-
-- 25fba43: refactor: migrate to Nextjs Route Handler
-- 6f75d4a: fix: unsupported language in code gen workflow
-
-## 0.2.1
-
-### Patch Changes
-
-- f072308: feat: add dev mode UI
-
 ## 0.2.0
 
 ### Minor Changes

packages/server/README.md

@@ -4,10 +4,10 @@ LlamaIndexServer is a Next.js-based application that allows you to quickly launc
 
 ## Features
 
-- Add a sophisticated chatbot UI to your LlamaIndex workflow
-- Edit code and document artifacts in an OpenAI Canvas-style UI
-- Extendable UI components for events and headers
+- Serving a workflow as a chatbot
 - Built on Next.js for high performance and easy API development
+- Optional built-in chat UI with extendable UI components
+- Prebuilt development code
 
 ## Installation
 
@@ -21,11 +21,9 @@ Create an `index.ts` file and add the following code:
 
 ```ts
 import { LlamaIndexServer } from "@llamaindex/server";
-import { openai } from "@llamaindex/openai";
-import { agent } from "@llamaindex/workflow";
 import { wiki } from "@llamaindex/tools"; // or any other tool
 
-const createWorkflow = () => agent({ tools: [wiki()], llm: openai("gpt-4o") });
+const createWorkflow = () => agent({ tools: [wiki()] });
 
 new LlamaIndexServer({
   workflow: createWorkflow,
@@ -36,8 +34,6 @@ new LlamaIndexServer({
 }).start();
 ```
 
-The `createWorkflow` function is a factory function that creates an [Agent Workflow](https://ts.llamaindex.ai/docs/llamaindex/modules/agents/agent_workflow) with a tool that retrieves information from Wikipedia in this case. For more details, read about the [Workflow factory contract](#workflow-factory-contract).
-
 ## Running the Server
 
 In the same directory as `index.ts`, run the following command to start the server:
@@ -58,75 +54,16 @@ curl -X POST "http://localhost:3000/api/chat" -H "Content-Type: application/json
 
 The `LlamaIndexServer` accepts the following configuration options:
 
-- `workflow`: A callable function that creates a workflow instance for each request. See [Workflow factory contract](#workflow-factory-contract) for more details.
+- `workflow`: A callable function that creates a workflow instance for each request
 - `uiConfig`: An object to configure the chat UI containing the following properties:
   - `appTitle`: The title of the application (default: `"LlamaIndex App"`)
   - `starterQuestions`: List of starter questions for the chat UI (default: `[]`)
   - `componentsDir`: The directory for custom UI components rendering events emitted by the workflow. The default is undefined, which does not render custom UI components.
   - `llamaCloudIndexSelector`: Whether to show the LlamaCloud index selector in the chat UI (requires `LLAMA_CLOUD_API_KEY` to be set in the environment variables) (default: `false`)
-  - `dev_mode`: When enabled, you can update workflow code in the UI and see the changes immediately. It's currently in beta and only supports updating workflow code at `app/src/workflow.ts`. Please start server in dev mode (`npm run dev`) to use see this reload feature enabled.
 
 LlamaIndexServer accepts all the configuration options from Nextjs Custom Server such as `port`, `hostname`, `dev`, etc.
 See all Nextjs Custom Server options [here](https://nextjs.org/docs/app/building-your-application/configuring/custom-server).
 
-## Workflow factory contract
-
-The `workflow` provided will be called for each chat request to initialize a new workflow instance. The contract of the generated workflow must be the same as for the [Agent Workflow](https://ts.llamaindex.ai/docs/llamaindex/modules/agents/agent_workflow).
-
-This means that the workflow must handle a `startAgentEvent` event, which is the entry point of the workflow and contains the following information in it's `data` property:
-
-```typescript
-{
-  userInput: MessageContent;
-  chatHistory?: ChatMessage[] | undefined;
-};
-```
-
-The `userInput` is the latest user message and the `chatHistory` is the list of messages exchanged between the user and the workflow so far.
-
-Furthermore, the workflow must stop with a `stopAgentEvent` event to mark the end of the workflow. In between, the workflow can emit [UI events](##AI-generated-UI-Components) to render custom UI components and [Artifact events](##Sending-Artifacts-to-the-UI) to send structured data like generated documents or code snippets to the UI.
-
-```ts
-import {
-  createStatefulMiddleware,
-  createWorkflow,
-  startAgentEvent,
-} from "@llamaindex/workflow";
-import { ChatMemoryBuffer, type ChatMessage, Settings } from "llamaindex";
-import { openai } from "@llamaindex/openai";
-import { wiki } from "@llamaindex/tools";
-
-Settings.llm = openai("gpt-4o");
-
-export const workflowFactory = async () => {
-  const workflow = createWorkflow();
-
-  workflow.handle([startAgentEvent], async ({ data }) => {
-    const { state, sendEvent } = getContext();
-    const messages = data.chatHistory;
-
-    const toolCallResponse = await chatWithTools(
-      Settings.llm,
-      [wiki()],
-      messages,
-    );
-
-    // using result from tool call and use `sendEvent` to emit the next event...
-  });
-
-  // define more workflow handling logic here...
-
-  // Finally stop with a `stopAgentEvent` event to mark the end of the workflow.
-  // return stopAgentEvent.with({
-  //   result: "This is the end!",
-  // });
-
-  return workflow;
-};
-```
-
-To generate sophisticated examples of workflows, you best use the [create-llama](https://github.com/run-llama/create-llama) project.
-
 ## AI-generated UI Components
 
 The LlamaIndex server provides support for rendering workflow events using custom UI components, allowing you to extend and customize the chat interface.
@@ -200,66 +137,6 @@ new LlamaIndexServer({
 }).start();
 ```
 
-## Sending Artifacts to the UI
-
-In addition to UI events for custom components, LlamaIndex Server supports a special `ArtifactEvent` to send structured data like generated documents or code snippets to the UI. These artifacts are displayed in a dedicated "Canvas" panel in the chat interface.
-
-### Artifact Event Structure
-
-To send an artifact, your workflow needs to emit an event with `type: "artifact"`. The `data` payload of this event should include:
-
-- `type`: A string indicating the type of artifact (e.g., `"document"`, `"code"`).
-- `created_at`: A timestamp (e.g., `Date.now()`) indicating when the artifact was created.
-- `data`: An object containing the specific details of the artifact. The structure of this object depends on the artifact `type`.
-
-### Defining and Sending an ArtifactEvent
-
-First, define your artifact event using `workflowEvent` from `@llamaindex/workflow`:
-
-```typescript
-import { workflowEvent } from "@llamaindex/workflow";
-
-// Example for a document artifact
-const artifactEvent = workflowEvent<{
-  type: "artifact"; // Must be "artifact"
-  data: {
-    type: "document"; // Custom type for your artifact (e.g., "document", "code")
-    created_at: number;
-    data: {
-      // Specific data for the document artifact type
-      title: string;
-      content: string;
-      type: "markdown" | "html"; // document format
-    };
-  };
-}>();
-```
-
-Then, within your workflow logic, use `sendEvent` (obtained from `getContext()`) to emit the event:
-
-```typescript
-// Assuming 'sendEvent' is available in your workflow handler
-// and 'documentDetails' contains the content for the artifact.
-
-sendEvent(
-  artifactEvent.with({
-    type: "artifact", // This top-level type must be "artifact"
-    data: {
-      type: "document", // This is your specific artifact type
-      created_at: Date.now(),
-      data: {
-        title: "My Generated Document",
-        content: "# Hello World
-This is a markdown document.",
-        type: "markdown",
-      },
-    },
-  }),
-);
-```
-
-This will send the artifact to the LlamaIndex Server UI, where it will be rendered in the [ChatCanvasPanel](/packages/server/next/app/components/ui/chat/canvas/panel.tsx) by a renderer depending on the artifact type. For type `document` this is using the [DocumentArtifactViewer](https://github.com/run-llama/chat-ui/blob/bacb75fc6edceacf742fba18632404a2483b5a81/packages/chat-ui/src/chat/canvas/artifacts/document.tsx#L17).
-
 ## Default Endpoints and Features
 
 ### Chat Endpoint

packages/server/examples/README.md

@@ -6,7 +6,7 @@ This directory contains examples of how to use the LlamaIndex Server.
 
 ```bash
 export OPENAI_API_KEY=your_openai_api_key
-pnpm run dev
+npx tsx simple-workflow/calculator.ts
 ```
 
 ## Open browser at http://localhost:3000

packages/server/examples/agentic-rag/index.ts

@@ -39,5 +39,5 @@ new LlamaIndexServer({
     appTitle: "LlamaIndex App",
     starterQuestions: ["What is the color of the dog?"],
   },
-  port: 3000,
+  port: 4100,
 }).start();

packages/server/examples/devmode/README.md

@@ -1,21 +0,0 @@
-This example shows how to use the dev mode of the server.
-
-First, we need to set `devMode` to `true` in the `uiConfig` of the server.
-
-```ts
-new LlamaIndexServer({
-  workflow: workflowFactory,
-  uiConfig: {
-    appTitle: "Calculator",
-    devMode: true,
-  },
-  port: 3000,
-}).start();
-```
-
-Export OpenAI API key and start the server in dev mode.
-
-```bash
-export OPENAI_API_KEY=<your-openai-api-key>
-npx nodemon --exec tsx index.ts --ignore src/app/workflow_*.ts
-```

packages/server/examples/devmode/index.ts

@@ -1,15 +0,0 @@
-import { LlamaIndexServer } from "@llamaindex/server";
-import { workflowFactory } from "./src/app/workflow";
-
-new LlamaIndexServer({
-  workflow: workflowFactory,
-  uiConfig: {
-    appTitle: "Calculator",
-    devMode: true,
-    starterQuestions: [
-      "What is the weather in Tokyo?",
-      "What is the weather in New York?",
-    ],
-  },
-  port: 3000,
-}).start();

packages/server/examples/devmode/src/app/workflow.ts

@@ -1,16 +0,0 @@
-import { agent } from "@llamaindex/workflow";
-import { tool } from "llamaindex";
-import { z } from "zod";
-
-export const workflowFactory = async () => {
-  return agent({
-    tools: [
-      tool({
-        name: "weather",
-        description: "Get the weather in a specific city",
-        parameters: z.object({ city: z.string() }),
-        execute: ({ city }) => `The weather in ${city} is sunny`,
-      }),
-    ],
-  });
-};

packages/server/examples/package.json

@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "typecheck": "tsc --noEmit",
-    "dev": "nodemon --exec tsx simple-workflow/calculator.ts"
+    "dev": "tsx simple-workflow/calculator.ts"
   },
   "dependencies": {
     "@llamaindex/openai": "^0.2.0",
@@ -18,7 +18,6 @@
   },
   "devDependencies": {
     "@types/node": "^20.10.3",
-    "nodemon": "^3.1.10",
     "tsx": "^4.7.2",
     "typescript": "^5.3.2"
   }

packages/server/examples/simple-workflow/calculator.ts

@@ -20,5 +20,5 @@ new LlamaIndexServer({
     appTitle: "Calculator",
     starterQuestions: ["1 + 1", "2 + 2"],
   },
-  port: 3000,
+  port: 4000,
 }).start();

packages/server/next/app/api/chat/config/llamacloud/route.ts

@@ -1,32 +0,0 @@
-import { getEnv } from "@llamaindex/env";
-import { LLamaCloudFileService } from "llamaindex";
-import { NextRequest, NextResponse } from "next/server";
-
-export async function GET(request: NextRequest): Promise<NextResponse> {
-  if (!getEnv("LLAMA_CLOUD_API_KEY")) {
-    return NextResponse.json(
-      {
-        error: "env variable LLAMA_CLOUD_API_KEY is required to use LlamaCloud",
-      },
-      { status: 500 },
-    );
-  }
-
-  try {
-    const config = {
-      projects: await LLamaCloudFileService.getAllProjectsWithPipelines(),
-      pipeline: {
-        pipeline: getEnv("LLAMA_CLOUD_INDEX_NAME"),
-        project: getEnv("LLAMA_CLOUD_PROJECT_NAME"),
-      },
-    };
-    return NextResponse.json(config, { status: 200 });
-  } catch (error) {
-    return NextResponse.json(
-      {
-        error: "Failed to fetch LlamaCloud configuration",
-      },
-      { status: 500 },
-    );
-  }
-}

packages/server/next/app/api/chat/route.ts

@@ -1,77 +0,0 @@
-import { type AgentInputData } from "@llamaindex/workflow";
-import { type Message } from "ai";
-import { type MessageType } from "llamaindex";
-import { NextRequest, NextResponse } from "next/server";
-
-// import chat utils
-import { toDataStream } from "./utils/stream";
-import { sendSuggestedQuestionsEvent } from "./utils/suggestion";
-import { runWorkflow } from "./utils/workflow";
-
-// import workflow factory from local file
-import { workflowFactory } from "../../../../app/workflow";
-
-export async function POST(req: NextRequest) {
-  try {
-    const reqBody = await req.json();
-    const { messages } = reqBody as { messages: Message[] };
-    const chatHistory = messages.map((message) => ({
-      role: message.role as MessageType,
-      content: message.content,
-    }));
-
-    const lastMessage = messages[messages.length - 1];
-    if (lastMessage?.role !== "user") {
-      return NextResponse.json(
-        {
-          detail: "Messages cannot be empty and last message must be from user",
-        },
-        { status: 400 },
-      );
-    }
-    const workflowInput: AgentInputData = {
-      userInput: lastMessage.content,
-      chatHistory,
-    };
-
-    const abortController = new AbortController();
-    req.signal.addEventListener("abort", () =>
-      abortController.abort("Connection closed"),
-    );
-
-    const workflow = await workflowFactory(reqBody);
-    const workflowEventStream = await runWorkflow(
-      workflow,
-      workflowInput,
-      abortController.signal,
-    );
-
-    const dataStream = toDataStream(workflowEventStream, {
-      callbacks: {
-        onFinal: async (completion, dataStreamWriter) => {
-          chatHistory.push({
-            role: "assistant" as MessageType,
-            content: completion,
-          });
-          await sendSuggestedQuestionsEvent(dataStreamWriter, chatHistory);
-        },
-      },
-    });
-
-    return new Response(dataStream, {
-      status: 200,
-      headers: {
-        "Content-Type": "text/plain; charset=utf-8",
-        "X-Vercel-AI-Data-Stream": "v1",
-      },
-    });
-  } catch (error) {
-    console.error("Chat handler error:", error);
-    return NextResponse.json(
-      {
-        detail: (error as Error).message || "Internal server error",
-      },
-      { status: 500 },
-    );
-  }
-}

packages/server/next/app/api/dev/files/workflow/route.ts

@@ -1,96 +0,0 @@
-import { exec } from "child_process";
-import fs from "fs";
-import { NextRequest, NextResponse } from "next/server";
-import path from "path";
-import { promisify } from "util";
-
-const DEFAULT_WORKFLOW_FILE_PATH = "src/app/workflow.ts"; // TODO: we can make it as a parameter in server later
-
-export async function GET(request: NextRequest) {
-  const filePath = DEFAULT_WORKFLOW_FILE_PATH;
-
-  const fileExists = await promisify(fs.exists)(DEFAULT_WORKFLOW_FILE_PATH);
-  if (!fileExists) {
-    return NextResponse.json(
-      {
-        detail: `Dev mode is currently in beta. It only supports updating workflow file at ${filePath}`,
-      },
-      { status: 404 },
-    );
-  }
-
-  const content = await promisify(fs.readFile)(filePath, "utf-8");
-  const last_modified = fs.statSync(filePath).mtime.getTime();
-
-  return NextResponse.json(
-    { content, file_path: filePath, last_modified },
-    { status: 200 },
-  );
-}
-
-export async function PUT(request: NextRequest) {
-  const filePath = DEFAULT_WORKFLOW_FILE_PATH;
-  const { content } = await request.json();
-
-  const fileExists = await promisify(fs.exists)(filePath);
-  if (!fileExists) {
-    return NextResponse.json(
-      {
-        detail: `Dev mode is currently in beta. It only supports updating workflow file at ${DEFAULT_WORKFLOW_FILE_PATH}`,
-      },
-      { status: 404 },
-    );
-  }
-
-  try {
-    const resolvedFilePath = path.resolve(DEFAULT_WORKFLOW_FILE_PATH);
-    const result = await validateTypeScriptFile(resolvedFilePath, content);
-
-    if (!result.isValid) {
-      return NextResponse.json(
-        {
-          detail: result.errors.join("\n"),
-        },
-        { status: 400 },
-      );
-    }
-
-    await promisify(fs.writeFile)(filePath, content);
-    return NextResponse.json({ content }, { status: 200 });
-  } catch (error) {
-    console.error("Error updating workflow file:", error);
-    return NextResponse.json(
-      { error: "Failed to update workflow file" },
-      { status: 500 },
-    );
-  }
-}
-
-// use typescript package to validate the file syntax and imports
-async function validateTypeScriptFile(filePath: string, content: string) {
-  // Update workflow file directly will cause the server restart immediately.
-  // So we create a temporary file with the same content in the same directory as the workflow file
-  // This file will be used to validate the file syntax and imports. It will be deleted after validation.
-  const tempFilePath = path.join(
-    path.dirname(filePath),
-    `workflow_${Date.now()}.ts`,
-  );
-  fs.writeFileSync(tempFilePath, content);
-
-  const errors = [];
-  try {
-    const tscCommand = `npx tsc ${tempFilePath} --noEmit --skipLibCheck true`;
-    await promisify(exec)(tscCommand);
-  } catch (error) {
-    const errorMessage = (error as { stdout: string })?.stdout;
-    errors.push(errorMessage);
-  } finally {
-    // Clean up temporary file
-    if (fs.existsSync(tempFilePath)) fs.unlinkSync(tempFilePath);
-  }
-
-  return {
-    isValid: errors.length === 0,
-    errors: errors,
-  };
-}

packages/server/next/app/api/files/[...slug]/route.ts

@@ -1,24 +0,0 @@
-import fs from "fs";
-import { NextRequest, NextResponse } from "next/server";
-import { promisify } from "util";
-
-export async function GET(
-  request: NextRequest,
-  { params }: { params: Promise<{ slug: string[] }> },
-) {
-  const filePath = (await params).slug.join("/");
-
-  if (!filePath.startsWith("output") && !filePath.startsWith("data")) {
-    return NextResponse.json({ error: "No permission" }, { status: 400 });
-  }
-
-  const decodedFilePath = decodeURIComponent(filePath);
-  const fileExists = await promisify(fs.exists)(decodedFilePath);
-
-  if (fileExists) {
-    const fileBuffer = await promisify(fs.readFile)(decodedFilePath);
-    return new NextResponse(fileBuffer);
-  } else {
-    return NextResponse.json({ error: "File not found" }, { status: 404 });
-  }
-}

packages/server/next/app/components/ui/chat/chat-section.tsx

@@ -13,7 +13,6 @@ import CustomChatMessages from "./chat-messages";
 import { DynamicEventsErrors } from "./custom/events/dynamic-events-errors";
 import { fetchComponentDefinitions } from "./custom/events/loader";
 import { ComponentDef } from "./custom/events/types";
-import { DevModePanel } from "./dev-mode-panel";
 
 export default function ChatSection() {
   const handler = useChat({
@@ -36,13 +35,12 @@ export default function ChatSection() {
         <ChatHeader />
         <ChatUI
           handler={handler}
-          className="relative flex min-h-0 flex-1 flex-row justify-center gap-4 px-4 py-0"
+          className="flex min-h-0 flex-1 flex-row justify-center gap-4 px-4 py-0"
         >
           <ResizablePanelGroup direction="horizontal">
             <ChatSectionPanel />
             <ChatCanvasPanel />
           </ResizablePanelGroup>
-          <DevModePanel />
         </ChatUI>
       </div>
       <ChatInjection />

packages/server/next/app/components/ui/chat/dev-mode-panel.tsx

@@ -1,273 +0,0 @@
-"use client";
-
-import {
-  CodeEditor,
-  fileExtensionToEditorLang,
-} from "@llamaindex/chat-ui/widgets";
-import { AlertCircle, Loader2 } from "lucide-react";
-import { useEffect, useMemo, useState } from "react";
-import { Button } from "../button";
-import { getConfig } from "../lib/utils";
-
-const API_PATH = "/api/dev/files/workflow";
-const POLLING_TIMEOUT = 30_000; // 30 seconds
-
-type WorkflowFile = {
-  last_modified: number;
-  file_path: string;
-  content: string;
-};
-
-export function DevModePanel() {
-  const devModeEnabled = getConfig("DEV_MODE");
-  if (!devModeEnabled) return null;
-  return <DevModePanelComp />;
-}
-
-function DevModePanelComp() {
-  const [devModeOpen, setDevModeOpen] = useState(false);
-
-  const [isFetching, setIsFetching] = useState(false);
-  const [fetchingError, setFetchingError] = useState<string | null>();
-  const [workflowFile, setWorkflowFile] = useState<WorkflowFile | null>(null);
-
-  const [updatedCode, setUpdatedCode] = useState<string | null>(null);
-  const [isSaving, setIsSaving] = useState(false);
-  const [saveError, setSaveError] = useState<string | null>(null);
-
-  const [isPolling, setIsPolling] = useState(false);
-  const [pollingError, setPollingError] = useState<string | null>(null);
-
-  async function fetchWorkflowCode() {
-    try {
-      setIsFetching(true);
-      const response = await fetch(API_PATH);
-      const data = await response.json();
-
-      if (!response.ok) {
-        throw new Error(data?.detail ?? "Unknown error");
-      }
-
-      setWorkflowFile(data);
-      setFetchingError(null);
-    } catch (error) {
-      const errorMessage =
-        error instanceof Error ? error.message : "Unknown error";
-      setFetchingError(errorMessage);
-      console.warn("Error fetching workflow code:", error);
-    } finally {
-      setIsFetching(false);
-    }
-  }
-
-  async function restartingWorkflow() {
-    if (!workflowFile) return;
-
-    const initialLastModified = workflowFile.last_modified;
-    setIsPolling(true);
-    setPollingError(null);
-
-    const pollStartTime = Date.now();
-
-    // interval refetching the updated workflow code
-    const poll = async () => {
-      if (Date.now() - pollStartTime > POLLING_TIMEOUT) {
-        setPollingError(
-          `Server not responding after ${POLLING_TIMEOUT / 1000} seconds.`,
-        );
-        return;
-      }
-
-      try {
-        const pollResponse = await fetch(API_PATH);
-        const pollData = (await pollResponse.json()) as WorkflowFile;
-        if (pollData.last_modified !== initialLastModified) {
-          setWorkflowFile(pollData);
-          setUpdatedCode(pollData.content);
-          setIsPolling(false);
-          setPollingError(null);
-          setDevModeOpen(false);
-        } else {
-          setTimeout(poll, 2000);
-        }
-      } catch (error) {
-        console.info("Polling error", error);
-        setTimeout(poll, 2000);
-      }
-    };
-
-    setTimeout(poll, 2000);
-  }
-
-  const handleResetCode = () => {
-    setUpdatedCode(workflowFile?.content ?? null);
-    setSaveError(null);
-  };
-
-  const handleSaveCode = async () => {
-    if (!workflowFile) return;
-
-    try {
-      setIsSaving(true);
-      const response = await fetch(API_PATH, {
-        method: "PUT",
-        headers: {
-          Accept: "application/json",
-          "Content-Type": "application/json",
-        },
-        body: JSON.stringify({
-          content: updatedCode,
-          file_path: workflowFile.file_path,
-        }),
-      });
-      const data = await response.json();
-      if (!response.ok) {
-        throw new Error(data?.detail ?? "Unknown error");
-      }
-      setSaveError(null);
-      await restartingWorkflow();
-    } catch (error) {
-      console.warn("Error saving workflow code:", error);
-      setSaveError(
-        error instanceof Error
-          ? error.message
-          : "Unknown error happened when saving workflow code",
-      );
-    } finally {
-      setIsSaving(false);
-    }
-  };
-
-  useEffect(() => {
-    if (devModeOpen) {
-      fetchWorkflowCode();
-    }
-  }, [devModeOpen]);
-
-  const codeEditorLanguage = useMemo(() => {
-    if (!workflowFile?.file_path) return undefined;
-    return fileExtensionToEditorLang(
-      workflowFile.file_path.split(".").pop() ?? "",
-    );
-  }, [workflowFile]);
-
-  return (
-    <>
-      <Button
-        onClick={() => setDevModeOpen(!devModeOpen)}
-        className="fixed right-2 top-1/2 origin-right -translate-y-1/2 rotate-90 transform rounded-l-md shadow-md transition-transform hover:-translate-x-1"
-      >
-        Dev Mode
-      </Button>
-
-      {isPolling && (
-        <div className="fixed inset-0 z-50 flex flex-col items-center justify-center bg-black/50 backdrop-blur-sm">
-          {!pollingError && (
-            <>
-              <Loader2 className="mb-4 h-16 w-16 animate-spin text-white" />
-              <p className="text-lg font-semibold text-white">
-                Applying changes and restarting server...
-              </p>
-              <p className="mt-2 text-sm text-slate-300">
-                Please wait for a while then you can start chatting with the
-                updated workflow.
-              </p>
-            </>
-          )}
-          {pollingError && (
-            <div className="bg-destructive/20 text-destructive-foreground mt-4 max-w-md rounded-md p-4 text-center">
-              <div className="mb-2 flex items-center justify-center gap-2">
-                <AlertCircle className="shrink-0" size={16} />
-                <h6 className="text-sm font-medium">Server Starting Error</h6>
-              </div>
-              <p className="text-sm">{pollingError}</p>
-
-              <p className="text-sm">
-                Please reload the page and check server logs.
-              </p>
-            </div>
-          )}
-        </div>
-      )}
-
-      <div
-        className={`border-border fixed right-0 top-0 z-10 h-full w-full border-l shadow-xl transition-all duration-300 ease-in-out ${
-          devModeOpen ? "translate-x-0 bg-black/50" : "translate-x-full"
-        }`}
-        onClick={() => setDevModeOpen(false)}
-      >
-        <div
-          className={`bg-background ml-auto flex h-full w-[800px] flex-col p-4`}
-          onClick={(e) => e.stopPropagation()}
-        >
-          <div className="mb-4 flex items-center justify-between">
-            <div>
-              <h2 className="text-xl font-bold">Workflow Editor</h2>
-              <p className="text-muted-foreground text-sm">
-                {isFetching ? (
-                  "Loading..."
-                ) : workflowFile ? (
-                  <>
-                    Edit the code of <b>{workflowFile.file_path}</b> and save to
-                    apply changes to your workflow.
-                  </>
-                ) : (
-                  ""
-                )}
-              </p>
-            </div>
-            <Button
-              variant="outline"
-              size="sm"
-              onClick={() => setDevModeOpen(false)}
-            >
-              Close
-            </Button>
-          </div>
-          <div className="flex-1 overflow-auto">
-            {fetchingError ? (
-              <div className="bg-destructive/10 text-destructive/70 mb-4 flex items-center gap-2 rounded-md p-4">
-                <AlertCircle className="shrink-0" size={16} />
-                <p className="text-sm font-medium">{fetchingError}</p>
-              </div>
-            ) : (
-              <CodeEditor
-                code={updatedCode ?? workflowFile?.content ?? ""}
-                onChange={setUpdatedCode}
-                language={codeEditorLanguage}
-              />
-            )}
-          </div>
-          <div className="mt-4 flex flex-col">
-            {saveError && (
-              <div className="bg-destructive/10 text-destructive/70 mb-4 rounded-md p-4">
-                <div className="mb-2 flex items-center gap-2">
-                  <AlertCircle className="shrink-0" size={16} />
-                  <h6 className="text-sm font-medium">Error Saving Code</h6>
-                </div>
-                <p className="whitespace-pre-wrap text-sm">{saveError}</p>
-              </div>
-            )}
-
-            <div className="flex justify-end gap-2">
-              <Button
-                variant="outline"
-                className="mr-2"
-                onClick={handleResetCode}
-              >
-                Reset Code
-              </Button>
-              <Button
-                onClick={handleSaveCode}
-                disabled={isSaving || !updatedCode || !workflowFile}
-              >
-                Save & Restart Server
-                {isSaving && <Loader2 className="ml-2 h-4 w-4 animate-spin" />}
-              </Button>
-            </div>
-          </div>
-        </div>
-      </div>
-    </>
-  );
-}

packages/server/next/tsconfig.json

@@ -20,7 +20,7 @@
     "paths": {
       "@/*": ["./*"]
     },
-    "target": "ES2022"
+    "target": "ES2017"
   },
   "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
   "exclude": ["node_modules"]

packages/server/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@llamaindex/server",
   "description": "LlamaIndex Server",
-  "version": "0.2.2",
+  "version": "0.2.0",
   "type": "module",
   "main": "./dist/index.cjs",
   "module": "./dist/index.js",
@@ -27,25 +27,21 @@
     "directory": "packages/server"
   },
   "scripts": {
-    "dev": "bunchee --watch",
-    "clean": "rm -rf ./dist ./server next/.next next/out ./temp",
+    "clean": "rm -rf ./dist ./server next/.next next/out",
     "prebuild": "pnpm clean",
     "build": "bunchee",
-    "postbuild": "pnpm prepare:ts-server && pnpm prepare:py-static",
-    "prepare:ts-server": "pnpm copy:next-src && pnpm build:css && pnpm build:api",
-    "prepare:py-static": "pnpm prepare:static && pnpm build:static && pnpm copy:static",
-    "copy:next-src": "cp -r ./next ./server",
-    "build:css": "postcss server/app/globals.css -o server/app/globals.css && rm -rf ./server/postcss.config.js",
-    "build:api": "rm -rf ./server/app/api && tsc --skipLibCheck --project tsconfig.api.json",
-    "prepare:static": "cp -r ./next ./temp && rm -rf ./temp/app/api && mv ./temp/next-build.config.ts ./temp/next.config.ts",
-    "build:static": "cd ./temp && next build",
-    "copy:static": "cp -r ./temp/out ./dist/static && rm -rf ./temp"
+    "postbuild": "pnpm copy:next-src && pnpm build:static && pnpm copy:static",
+    "copy:next-src": "cp -r ./next ./server && pnpm build:css && rm -rf ./server/postcss.config.js",
+    "build:css": "postcss server/app/globals.css -o server/app/globals.css",
+    "build:static": "cd ./next && next build",
+    "copy:static": "cp -r ./next/out ./dist/static",
+    "dev": "bunchee --watch"
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4",
     "@types/babel__standalone": "^7.1.9",
     "@types/babel__traverse": "^7.20.7",
-    "llamaindex": "~0.11.0",
+    "llamaindex": "0.10.2",
     "postcss": "^8.5.3",
     "postcss-cli": "^11.0.1",
     "tailwindcss": "^4",
@@ -59,7 +55,7 @@
     "@babel/traverse": "^7.27.0",
     "@babel/types": "^7.27.0",
     "@hookform/resolvers": "^5.0.1",
-    "@llamaindex/chat-ui": "0.4.4",
+    "@llamaindex/chat-ui": "0.4.3",
     "@radix-ui/react-accordion": "^1.2.3",
     "@radix-ui/react-alert-dialog": "^1.1.7",
     "@radix-ui/react-aspect-ratio": "^1.1.3",
@@ -107,9 +103,9 @@
     "vaul": "^1.1.2"
   },
   "peerDependencies": {
-    "@llamaindex/env": "~0.1.30",
-    "@llamaindex/workflow": "~1.1.3",
-    "llamaindex": "~0.11.0",
+    "@llamaindex/env": "^0.1.29",
+    "@llamaindex/workflow": "^1.1.0",
+    "llamaindex": "^0.10.2",
     "zod": "^3.24.2",
     "zod-to-json-schema": "^3.23.3"
   },

packages/server/src/events.ts

@@ -155,12 +155,10 @@ export function extractAllArtifacts(messages: Message[]): Artifact[] {
     const artifacts =
       message.annotations
         ?.filter(
-          (
-            annotation,
-          ): annotation is z.infer<typeof artifactAnnotationSchema> =>
+          (annotation) =>
             artifactAnnotationSchema.safeParse(annotation).success,
         )
-        .map((annotation) => annotation.data as Artifact) ?? [];
+        .map((artifact) => artifact as Artifact) ?? [];
 
     allArtifacts.push(...artifacts);
   }

packages/server/src/handlers/cloud.ts

@@ -0,0 +1,30 @@
+import { getEnv } from "@llamaindex/env";
+import type { IncomingMessage, ServerResponse } from "http";
+import { LLamaCloudFileService } from "llamaindex";
+import { sendJSONResponse } from "../utils/request";
+
+export const getLlamaCloudConfig = async (
+  req: IncomingMessage,
+  res: ServerResponse,
+) => {
+  if (!getEnv("LLAMA_CLOUD_API_KEY")) {
+    return sendJSONResponse(res, 500, {
+      error: "env variable LLAMA_CLOUD_API_KEY is required to use LlamaCloud",
+    });
+  }
+
+  try {
+    const config = {
+      projects: await LLamaCloudFileService.getAllProjectsWithPipelines(),
+      pipeline: {
+        pipeline: getEnv("LLAMA_CLOUD_INDEX_NAME"),
+        project: getEnv("LLAMA_CLOUD_PROJECT_NAME"),
+      },
+    };
+    return sendJSONResponse(res, 200, config);
+  } catch (error) {
+    return sendJSONResponse(res, 500, {
+      error: "Failed to fetch LlamaCloud configuration",
+    });
+  }
+};

packages/server/src/handlers/components.ts

@@ -1,19 +1,20 @@
 import fs from "fs";
-import { NextRequest, NextResponse } from "next/server";
+import type { IncomingMessage, ServerResponse } from "http";
 import path from "path";
 import { promisify } from "util";
+import { sendJSONResponse } from "../utils/request";
 
-export async function GET(request: NextRequest) {
-  const params = request.nextUrl.searchParams;
-  const componentsDir = params.get("componentsDir") || "components";
-
+export const getComponents = async (
+  req: IncomingMessage,
+  res: ServerResponse,
+  componentsDir: string,
+) => {
   try {
     const exists = await promisify(fs.exists)(componentsDir);
     if (!exists) {
-      return NextResponse.json(
-        { error: "Components directory not found" },
-        { status: 404 },
-      );
+      return sendJSONResponse(res, 404, {
+        error: "Components directory not found",
+      });
     }
 
     const files = await promisify(fs.readdir)(componentsDir);
@@ -39,15 +40,12 @@ export async function GET(request: NextRequest) {
       }),
     );
 
-    return NextResponse.json(components, { status: 200 });
+    sendJSONResponse(res, 200, components);
   } catch (error) {
     console.error("Error reading components:", error);
-    return NextResponse.json(
-      { error: "Failed to read components" },
-      { status: 500 },
-    );
+    sendJSONResponse(res, 500, { error: "Failed to read components" });
   }
-}
+};
 
 function filterDuplicateComponents(files: string[]) {
   const compMap = new Map<string, string>();

packages/server/src/handlers/files.ts

@@ -0,0 +1,23 @@
+import fs from "fs";
+import type { IncomingMessage, ServerResponse } from "http";
+import { promisify } from "util";
+import { sendJSONResponse } from "../utils/request";
+
+export const handleServeFiles = async (
+  req: IncomingMessage,
+  res: ServerResponse,
+  pathname: string,
+) => {
+  const filePath = pathname.substring("/api/files/".length);
+  if (!filePath.startsWith("output") && !filePath.startsWith("data")) {
+    return sendJSONResponse(res, 400, { error: "No permission" });
+  }
+  const decodedFilePath = decodeURIComponent(filePath);
+  const fileExists = await promisify(fs.exists)(decodedFilePath);
+  if (fileExists) {
+    const fileStream = fs.createReadStream(decodedFilePath);
+    fileStream.pipe(res);
+  } else {
+    return sendJSONResponse(res, 404, { error: "File not found" });
+  }
+};

packages/server/src/server.ts

@@ -7,8 +7,10 @@ import path from "path";
 import { parse } from "url";
 import { promisify } from "util";
 import { handleChat } from "./handlers/chat";
+import { getLlamaCloudConfig } from "./handlers/cloud";
+import { getComponents } from "./handlers/components";
+import { handleServeFiles } from "./handlers/files";
 import type { LlamaIndexServerOptions } from "./types";
-
 const nextDir = path.join(__dirname, "..", "server");
 const configFile = path.join(__dirname, "..", "server", "public", "config.js");
 const dev = process.env.NODE_ENV !== "production";
@@ -42,7 +44,6 @@ export class LlamaIndexServer {
         ? "/api/chat/config/llamacloud"
         : undefined;
     const componentsApi = this.componentsDir ? "/api/components" : undefined;
-    const devMode = uiConfig?.devMode ?? false;
 
     // content in javascript format
     const content = `
@@ -51,8 +52,7 @@ export class LlamaIndexServer {
         APP_TITLE: ${JSON.stringify(appTitle)},
         LLAMA_CLOUD_API: ${JSON.stringify(llamaCloudApi)},
         STARTER_QUESTIONS: ${JSON.stringify(starterQuestions)},
-        COMPONENTS_API: ${JSON.stringify(componentsApi)},
-        DEV_MODE: ${JSON.stringify(devMode)}
+        COMPONENTS_API: ${JSON.stringify(componentsApi)}
       }
     `;
     fs.writeFileSync(configFile, content);
@@ -71,25 +71,33 @@ export class LlamaIndexServer {
     const server = createServer((req, res) => {
       const parsedUrl = parse(req.url!, true);
       const pathname = parsedUrl.pathname;
-      const query = parsedUrl.query;
 
       if (pathname === "/api/chat" && req.method === "POST") {
-        // because of https://github.com/vercel/next.js/discussions/79402 we can't use route.ts here, so we need to call this custom route
-        // when calling `pnpm eject`, the user will get an equivalent route at [path to chat route.ts]
-        // make sure to keep its semantic in sync with handleChat
         return handleChat(req, res, this.workflowFactory);
       }
 
+      if (pathname?.startsWith("/api/files") && req.method === "GET") {
+        return handleServeFiles(req, res, pathname);
+      }
+
       if (
         this.componentsDir &&
         pathname === "/api/components" &&
         req.method === "GET"
       ) {
-        query.componentsDir = this.componentsDir;
+        return getComponents(req, res, this.componentsDir);
+      }
+
+      if (
+        getEnv("LLAMA_CLOUD_API_KEY") &&
+        pathname === "/api/chat/config/llamacloud" &&
+        req.method === "GET"
+      ) {
+        return getLlamaCloudConfig(req, res);
       }
 
       const handle = this.app.getRequestHandler();
-      handle(req, res, { ...parsedUrl, query });
+      handle(req, res, parsedUrl);
     });
 
     server.listen(this.port, () => {

packages/server/src/types.ts

@@ -17,7 +17,6 @@ export type UIConfig = {
   starterQuestions?: string[];
   componentsDir?: string;
   llamaCloudIndexSelector?: boolean;
-  devMode?: boolean;
 };
 
 export type LlamaIndexServerOptions = NextAppOptions & {

packages/server/tsconfig.api.json

@@ -1,10 +0,0 @@
-{
-  "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "rootDir": "./next/app/api",
-    "outDir": "./server/app/api",
-    "emitDeclarationOnly": false
-  },
-  "include": ["./next/app/api"],
-  "exclude": ["./next/app/api/chat/route.ts"]
-}

pnpm-lock.yaml

@@ -181,14 +181,14 @@ importers:
         specifier: ^5.0.1
         version: 5.0.1(react-hook-form@7.56.1(react@19.1.0))
       '@llamaindex/chat-ui':
-        specifier: 0.4.4
-        version: 0.4.4(@babel/runtime@7.27.0)(@codemirror/autocomplete@6.18.6)(@codemirror/language@6.11.0)(@codemirror/lint@6.8.5)(@codemirror/search@6.5.10)(@codemirror/state@6.5.2)(@codemirror/theme-one-dark@6.1.2)(@codemirror/view@6.36.7)(@types/react-dom@19.1.2(@types/react@19.1.2))(@types/react@19.1.2)(codemirror@6.0.1)(react-dom@19.1.0(react@19.1.0))(react@19.1.0)
+        specifier: 0.4.3
+        version: 0.4.3(@babel/runtime@7.27.0)(@codemirror/autocomplete@6.18.6)(@codemirror/language@6.11.0)(@codemirror/lint@6.8.5)(@codemirror/search@6.5.10)(@codemirror/state@6.5.2)(@codemirror/theme-one-dark@6.1.2)(@codemirror/view@6.36.7)(@types/react-dom@19.1.2(@types/react@19.1.2))(@types/react@19.1.2)(codemirror@6.0.1)(react-dom@19.1.0(react@19.1.0))(react@19.1.0)
       '@llamaindex/env':
-        specifier: ~0.1.30
-        version: 0.1.30
+        specifier: ^0.1.29
+        version: 0.1.29
       '@llamaindex/workflow':
-        specifier: ~1.1.3
-        version: 1.1.3(@llamaindex/core@0.6.6)(@llamaindex/env@0.1.30)(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3)
+        specifier: ^1.1.0
+        version: 1.1.0(@llamaindex/core@0.6.2)(@llamaindex/env@0.1.29)(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(zod@3.24.3)
       '@radix-ui/react-accordion':
         specifier: ^1.2.3
         version: 1.2.8(@types/react-dom@19.1.2(@types/react@19.1.2))(@types/react@19.1.2)(react-dom@19.1.0(react@19.1.0))(react@19.1.0)
@@ -341,8 +341,8 @@ importers:
         specifier: ^7.20.7
         version: 7.20.7
       llamaindex:
-        specifier: ~0.11.0
-        version: 0.11.1(@llama-flow/core@0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3))(tree-sitter@0.22.4)(web-tree-sitter@0.24.7)(zod@3.24.3)
+        specifier: 0.10.2
+        version: 0.10.2(tree-sitter@0.22.4)(web-tree-sitter@0.24.7)(zod@3.24.3)
       postcss:
         specifier: ^8.5.3
         version: 8.5.3
@@ -378,7 +378,7 @@ importers:
         version: 0.0.4(openapi-types@12.1.3)
       '@llamaindex/workflow':
         specifier: 1.1.0
-        version: 1.1.0(@llamaindex/core@0.6.2)(@llamaindex/env@0.1.29)(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3)
+        version: 1.1.0(@llamaindex/core@0.6.2)(@llamaindex/env@0.1.29)(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(zod@3.24.3)
       dotenv:
         specifier: ^16.4.7
         version: 16.5.0
@@ -392,9 +392,6 @@ importers:
       '@types/node':
         specifier: ^20.10.3
         version: 20.17.30
-      nodemon:
-        specifier: ^3.1.10
-        version: 3.1.10
       tsx:
         specifier: ^4.7.2
         version: 4.19.3
@@ -1180,8 +1177,8 @@ packages:
       zod:
         optional: true
 
-  '@llamaindex/chat-ui@0.4.4':
-    resolution: {integrity: sha512-sE3mJxlmAV3eiIaqOnioUNYYBLJJL8sy2mdFP4xXDf3PfkcEn0wT2Om/ButpVgIXHlPG9lONtv8mzw7hWq2Atg==}
+  '@llamaindex/chat-ui@0.4.3':
+    resolution: {integrity: sha512-JeS5pzEXZRRzTL70lHRtbWbaPjeZuMMHlqkTNBgYqc2eMM+o9VMOzVKKsXoYfOeE+wunqJd+cBrtkECGEmhRZg==}
     peerDependencies:
       react: ^18.2.0 || ^19.0.0 || ^19.0.0-rc
 
@@ -1191,22 +1188,12 @@ packages:
       '@llamaindex/core': 0.6.2
       '@llamaindex/env': 0.1.29
 
-  '@llamaindex/cloud@4.0.9':
-    resolution: {integrity: sha512-+tIPghKAzXFvKEPmbJZpcFJgzmxLq/HfSKlJAIinRdrSDBC489oAJsqkt6StxmlFUhWS3ATOtTWpqWZIQ9HtzA==}
-    peerDependencies:
-      '@llama-flow/core': ^0.4.1
-      '@llamaindex/core': 0.6.6
-      '@llamaindex/env': 0.1.30
-
   '@llamaindex/core@0.6.1':
     resolution: {integrity: sha512-OsY8JV2nbfWYjp24HEKDbtM6vOa0TNUreMjDMxUkw5Wet1TxKxjVq0YHY01RoqMbbTJ+Jsxa42FhzTaDV2gMkg==}
 
   '@llamaindex/core@0.6.2':
     resolution: {integrity: sha512-e0NH7X1C8yq9sCqj1Ys9jL9rITCXBKfZwmKnTHYxpXorPeuNmlFmuoogahJTwLNsILBDTOVAUexO88SqmAFUrA==}
 
-  '@llamaindex/core@0.6.6':
-    resolution: {integrity: sha512-UplAAxsv3LnU1EP2kPuyqDtRQmQqYtsI00rVDeexOwgqwNTfGddI0yPRrFTBSNe0q2ttBuPsB7D3M7j4UY3yXQ==}
-
   '@llamaindex/env@0.1.29':
     resolution: {integrity: sha512-GoITt+QLDNIhu2i1sGsPH8tHH13Gxp4i4ofMFlefrHagytvF761MG7nvTAQVIqP9kxBYk4dnSQ3lQnVPFAfMZQ==}
     peerDependencies:
@@ -1218,17 +1205,6 @@ packages:
       gpt-tokenizer:
         optional: true
 
-  '@llamaindex/env@0.1.30':
-    resolution: {integrity: sha512-y6kutMcCevzbmexUgz+HXf7KiZemzAoFEYSjAILfR+cG6FmYSF8XvLbGOB34Kx8mlRi7EI8rZXpezJ5qCqOyZg==}
-    peerDependencies:
-      '@huggingface/transformers': ^3.5.0
-      gpt-tokenizer: ^2.5.0
-    peerDependenciesMeta:
-      '@huggingface/transformers':
-        optional: true
-      gpt-tokenizer:
-        optional: true
-
   '@llamaindex/node-parser@2.0.2':
     resolution: {integrity: sha512-pWqEfFRMW5TFzbDyEDWqhipR9P/HBF2C+pEeTroyRACZtKJLbeg3R3e2g4gmfnPxmxQIXkGn2UFK8Io4nwVNOg==}
     peerDependencies:
@@ -1237,14 +1213,6 @@ packages:
       tree-sitter: ^0.22.0
       web-tree-sitter: ^0.24.3
 
-  '@llamaindex/node-parser@2.0.6':
-    resolution: {integrity: sha512-8vJ7hsh1FKfAfO90nNe/G+/E2hM31dT/+1+0cPpZp02Ez98Jhwj+vTcCRlvyZznCn6DzHNBuw+uP1wKCqylSnQ==}
-    peerDependencies:
-      '@llamaindex/core': 0.6.6
-      '@llamaindex/env': 0.1.30
-      tree-sitter: ^0.22.0
-      web-tree-sitter: ^0.24.3
-
   '@llamaindex/openai@0.2.1':
     resolution: {integrity: sha512-gSBYL1vMaEihXm5K5gIHpUmvDS78ACPgQPlwf/ZnE82UD/vFNOWOqQbwESJKcygC0lHrwhrKJAuBAzXSNcpznA==}
 
@@ -1284,13 +1252,6 @@ packages:
       '@llamaindex/env': 0.1.29
       zod: ^3.23.8
 
-  '@llamaindex/workflow@1.1.3':
-    resolution: {integrity: sha512-B9wlN4xMtfbnIQW84wTC0GdyIaLGXYnZ4I0LENV2UM/0wqlXKI7YoBTO3cJvi6pO1sPA+K29Tqw822VsGF+GkA==}
-    peerDependencies:
-      '@llamaindex/core': 0.6.6
-      '@llamaindex/env': 0.1.30
-      zod: ^3.23.8
-
   '@manypkg/find-root@1.1.0':
     resolution: {integrity: sha512-mki5uBvhHzO8kYYix/WRy2WX8S3B5wdVSc9D6KcU5lQNglP2yt58/VfLuAK49glRXChosY8ap2oJ1qgma3GUVA==}
 
@@ -2520,9 +2481,6 @@ packages:
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-
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-
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@@ -5024,10 +4962,6 @@ packages:
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-
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     engines: {node: '>=8'}
@@ -5324,9 +5258,6 @@ packages:
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-
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@@ -5572,10 +5503,6 @@ packages:
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-  retry@0.13.1:
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-
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@@ -5747,10 +5674,6 @@ packages:
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-    engines: {node: '>=10'}
-
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@@ -5909,10 +5832,6 @@ packages:
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-  supports-color@5.5.0:
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-    engines: {node: '>=4'}
-
   supports-color@7.2.0:
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     engines: {node: '>=8'}
@@ -6009,10 +5928,6 @@ packages:
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-  touch@3.1.1:
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-    hasBin: true
-
   tr46@0.0.3:
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@@ -6103,9 +6018,6 @@ packages:
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     engines: {node: '>= 0.4'}
 
-  undefsafe@2.0.5:
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-
   underscore@1.13.7:
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@@ -6436,9 +6348,6 @@ packages:
   zod@3.24.3:
     resolution: {integrity: sha512-HhY1oqzWCQWuUqvBFnsyrtZRhyPeR7SUGv+C4+MsisMuVfSPx8HpwWqH8tRahSlt6M3PiFAcoeFhZAqIXTxoSg==}
 
-  zod@3.25.13:
-    resolution: {integrity: sha512-Q8mvk2iWi7rTDfpQBsu4ziE7A6AxgzJ5hzRyRYQkoV3A3niYsXVwDaP1Kbz3nWav6S+VZ6k2OznFn8ZyDHvIrg==}
-
   zwitch@2.0.4:
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@@ -6553,7 +6462,7 @@ snapshots:
       '@babel/parser': 7.27.0
       '@babel/template': 7.27.0
       '@babel/types': 7.27.0
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       globals: 11.12.0
     transitivePeerDependencies:
       - supports-color
@@ -6982,7 +6891,7 @@ snapshots:
   '@eslint/config-array@0.19.2':
     dependencies:
       '@eslint/object-schema': 2.1.6
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       minimatch: 3.1.2
     transitivePeerDependencies:
       - supports-color
@@ -7000,7 +6909,7 @@ snapshots:
   '@eslint/eslintrc@3.3.1':
     dependencies:
       ajv: 6.12.6
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       espree: 10.3.0
       globals: 14.0.0
       ignore: 5.3.2
@@ -7199,13 +7108,12 @@ snapshots:
       '@lezer/highlight': 1.2.1
       '@lezer/lr': 1.4.2
 
-  '@llama-flow/core@0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3)':
+  '@llama-flow/core@0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(zod@3.24.3)':
     optionalDependencies:
       next: 15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0)
-      p-retry: 6.2.1
       zod: 3.24.3
 
-  '@llamaindex/chat-ui@0.4.4(@babel/runtime@7.27.0)(@codemirror/autocomplete@6.18.6)(@codemirror/language@6.11.0)(@codemirror/lint@6.8.5)(@codemirror/search@6.5.10)(@codemirror/state@6.5.2)(@codemirror/theme-one-dark@6.1.2)(@codemirror/view@6.36.7)(@types/react-dom@19.1.2(@types/react@19.1.2))(@types/react@19.1.2)(codemirror@6.0.1)(react-dom@19.1.0(react@19.1.0))(react@19.1.0)':
+  '@llamaindex/chat-ui@0.4.3(@babel/runtime@7.27.0)(@codemirror/autocomplete@6.18.6)(@codemirror/language@6.11.0)(@codemirror/lint@6.8.5)(@codemirror/search@6.5.10)(@codemirror/state@6.5.2)(@codemirror/theme-one-dark@6.1.2)(@codemirror/view@6.36.7)(@types/react-dom@19.1.2(@types/react@19.1.2))(@types/react@19.1.2)(codemirror@6.0.1)(react-dom@19.1.0(react@19.1.0))(react@19.1.0)':
     dependencies:
       '@codemirror/lang-css': 6.3.1
       '@codemirror/lang-html': 6.4.9
@@ -7265,14 +7173,6 @@ snapshots:
       '@llamaindex/core': 0.6.2
       '@llamaindex/env': 0.1.29
 
-  '@llamaindex/cloud@4.0.9(@llama-flow/core@0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3))(@llamaindex/core@0.6.6)(@llamaindex/env@0.1.30)':
-    dependencies:
-      '@llama-flow/core': 0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3)
-      '@llamaindex/core': 0.6.6
-      '@llamaindex/env': 0.1.30
-      p-retry: 6.2.1
-      zod: 3.25.13
-
   '@llamaindex/core@0.6.1':
     dependencies:
       '@llamaindex/env': 0.1.29
@@ -7295,29 +7195,12 @@ snapshots:
       - '@huggingface/transformers'
       - gpt-tokenizer
 
-  '@llamaindex/core@0.6.6':
-    dependencies:
-      '@llamaindex/env': 0.1.30
-      '@types/node': 22.15.2
-      magic-bytes.js: 1.12.1
-      zod: 3.24.3
-      zod-to-json-schema: 3.24.5(zod@3.24.3)
-    transitivePeerDependencies:
-      - '@huggingface/transformers'
-      - gpt-tokenizer
-
   '@llamaindex/env@0.1.29':
     dependencies:
       '@aws-crypto/sha256-js': 5.2.0
       js-tiktoken: 1.0.20
       pathe: 1.1.2
 
-  '@llamaindex/env@0.1.30':
-    dependencies:
-      '@aws-crypto/sha256-js': 5.2.0
-      js-tiktoken: 1.0.20
-      pathe: 1.1.2
-
   '@llamaindex/node-parser@2.0.2(@llamaindex/core@0.6.2)(@llamaindex/env@0.1.29)(tree-sitter@0.22.4)(web-tree-sitter@0.24.7)':
     dependencies:
       '@llamaindex/core': 0.6.2
@@ -7326,14 +7209,6 @@ snapshots:
       tree-sitter: 0.22.4
       web-tree-sitter: 0.24.7
 
-  '@llamaindex/node-parser@2.0.6(@llamaindex/core@0.6.6)(@llamaindex/env@0.1.30)(tree-sitter@0.22.4)(web-tree-sitter@0.24.7)':
-    dependencies:
-      '@llamaindex/core': 0.6.6
-      '@llamaindex/env': 0.1.30
-      html-to-text: 9.0.5
-      tree-sitter: 0.22.4
-      web-tree-sitter: 0.24.7
-
   '@llamaindex/openai@0.2.1':
     dependencies:
       '@llamaindex/core': 0.6.1
@@ -7411,15 +7286,9 @@ snapshots:
       '@llamaindex/env': 0.1.29
       zod: 3.24.3
 
-  '@llamaindex/workflow@1.0.3(@llamaindex/core@0.6.6)(@llamaindex/env@0.1.30)(zod@3.24.3)':
+  '@llamaindex/workflow@1.1.0(@llamaindex/core@0.6.2)(@llamaindex/env@0.1.29)(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(zod@3.24.3)':
     dependencies:
-      '@llamaindex/core': 0.6.6
-      '@llamaindex/env': 0.1.30
-      zod: 3.24.3
-
-  '@llamaindex/workflow@1.1.0(@llamaindex/core@0.6.2)(@llamaindex/env@0.1.29)(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3)':
-    dependencies:
-      '@llama-flow/core': 0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3)
+      '@llama-flow/core': 0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(zod@3.24.3)
       '@llamaindex/core': 0.6.2
       '@llamaindex/env': 0.1.29
       zod: 3.24.3
@@ -7430,19 +7299,6 @@ snapshots:
       - p-retry
       - rxjs
 
-  '@llamaindex/workflow@1.1.3(@llamaindex/core@0.6.6)(@llamaindex/env@0.1.30)(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3)':
-    dependencies:
-      '@llama-flow/core': 0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3)
-      '@llamaindex/core': 0.6.6
-      '@llamaindex/env': 0.1.30
-      zod: 3.24.3
-    transitivePeerDependencies:
-      - '@modelcontextprotocol/sdk'
-      - hono
-      - next
-      - p-retry
-      - rxjs
-
   '@manypkg/find-root@1.1.0':
     dependencies:
       '@babel/runtime': 7.27.0
@@ -8639,8 +8495,6 @@ snapshots:
     dependencies:
       '@types/node': 20.17.30
 
-  '@types/retry@0.12.2': {}
-
   '@types/retry@0.12.5': {}
 
   '@types/tar@6.1.5':
@@ -8677,7 +8531,7 @@ snapshots:
       '@typescript-eslint/types': 8.31.0
       '@typescript-eslint/typescript-estree': 8.31.0(typescript@5.8.3)
       '@typescript-eslint/visitor-keys': 8.31.0
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       eslint: 9.22.0(jiti@2.4.2)
       typescript: 5.8.3
     transitivePeerDependencies:
@@ -8692,7 +8546,7 @@ snapshots:
     dependencies:
       '@typescript-eslint/typescript-estree': 8.31.0(typescript@5.8.3)
       '@typescript-eslint/utils': 8.31.0(eslint@9.22.0(jiti@2.4.2))(typescript@5.8.3)
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       eslint: 9.22.0(jiti@2.4.2)
       ts-api-utils: 2.1.0(typescript@5.8.3)
       typescript: 5.8.3
@@ -8705,7 +8559,7 @@ snapshots:
     dependencies:
       '@typescript-eslint/types': 8.31.0
       '@typescript-eslint/visitor-keys': 8.31.0
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       fast-glob: 3.3.3
       is-glob: 4.0.3
       minimatch: 9.0.5
@@ -8889,7 +8743,7 @@ snapshots:
 
   agent-base@6.0.2:
     dependencies:
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
     transitivePeerDependencies:
       - supports-color
     optional: true
@@ -9247,7 +9101,7 @@ snapshots:
       normalize-path: 3.0.0
       readdirp: 3.6.0
     optionalDependencies:
-      fsevents: 2.3.3
+      fsevents: 2.3.2
 
   chownr@1.1.4:
     optional: true
@@ -9443,11 +9297,9 @@ snapshots:
     dependencies:
       ms: 2.1.3
 
-  debug@4.4.0(supports-color@5.5.0):
+  debug@4.4.0:
     dependencies:
       ms: 2.1.3
-    optionalDependencies:
-      supports-color: 5.5.0
 
   decimal.js-light@2.5.1: {}
 
@@ -9813,7 +9665,7 @@ snapshots:
   eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.31.0)(eslint@9.22.0(jiti@2.4.2)):
     dependencies:
       '@nolyfill/is-core-module': 1.0.39
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       eslint: 9.22.0(jiti@2.4.2)
       get-tsconfig: 4.10.0
       is-bun-module: 2.0.0
@@ -9937,7 +9789,7 @@ snapshots:
       ajv: 6.12.6
       chalk: 4.1.2
       cross-spawn: 7.0.6
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       escape-string-regexp: 4.0.0
       eslint-scope: 8.3.0
       eslint-visitor-keys: 4.2.0
@@ -10316,8 +10168,6 @@ snapshots:
 
   has-bigints@1.1.0: {}
 
-  has-flag@3.0.0: {}
-
   has-flag@4.0.0: {}
 
   has-property-descriptors@1.0.2:
@@ -10428,7 +10278,7 @@ snapshots:
   https-proxy-agent@5.0.1:
     dependencies:
       agent-base: 6.0.2
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
     transitivePeerDependencies:
       - supports-color
     optional: true
@@ -10454,8 +10304,6 @@ snapshots:
   ieee754@1.2.1:
     optional: true
 
-  ignore-by-default@1.0.1: {}
-
   ignore@5.3.2: {}
 
   immediate@3.0.6: {}
@@ -10580,8 +10428,6 @@ snapshots:
 
   is-module@1.0.0: {}
 
-  is-network-error@1.1.0: {}
-
   is-number-object@1.1.1:
     dependencies:
       call-bound: 1.0.4
@@ -10818,7 +10664,7 @@ snapshots:
     dependencies:
       chalk: 5.4.1
       commander: 13.1.0
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       execa: 8.0.1
       lilconfig: 3.1.3
       listr2: 8.3.2
@@ -10860,26 +10706,6 @@ snapshots:
       - ws
       - zod
 
-  llamaindex@0.11.1(@llama-flow/core@0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3))(tree-sitter@0.22.4)(web-tree-sitter@0.24.7)(zod@3.24.3):
-    dependencies:
-      '@llamaindex/cloud': 4.0.9(@llama-flow/core@0.4.1(next@15.3.1(@opentelemetry/api@1.9.0)(@playwright/test@1.52.0)(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(p-retry@6.2.1)(zod@3.24.3))(@llamaindex/core@0.6.6)(@llamaindex/env@0.1.30)
-      '@llamaindex/core': 0.6.6
-      '@llamaindex/env': 0.1.30
-      '@llamaindex/node-parser': 2.0.6(@llamaindex/core@0.6.6)(@llamaindex/env@0.1.30)(tree-sitter@0.22.4)(web-tree-sitter@0.24.7)
-      '@llamaindex/workflow': 1.0.3(@llamaindex/core@0.6.6)(@llamaindex/env@0.1.30)(zod@3.24.3)
-      '@types/lodash': 4.17.16
-      '@types/node': 22.15.2
-      ajv: 8.17.1
-      lodash: 4.17.21
-      magic-bytes.js: 1.12.1
-    transitivePeerDependencies:
-      - '@huggingface/transformers'
-      - '@llama-flow/core'
-      - gpt-tokenizer
-      - tree-sitter
-      - web-tree-sitter
-      - zod
-
   locate-path@5.0.0:
     dependencies:
       p-locate: 4.1.0
@@ -11289,7 +11115,7 @@ snapshots:
   micromark@3.2.0:
     dependencies:
       '@types/debug': 4.1.12
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       decode-named-character-reference: 1.1.0
       micromark-core-commonmark: 1.1.0
       micromark-factory-space: 1.1.0
@@ -11434,19 +11260,6 @@ snapshots:
 
   node-gyp-build@4.8.4: {}
 
-  nodemon@3.1.10:
-    dependencies:
-      chokidar: 3.6.0
-      debug: 4.4.0(supports-color@5.5.0)
-      ignore-by-default: 1.0.1
-      minimatch: 3.1.2
-      pstree.remy: 1.1.8
-      semver: 7.7.1
-      simple-update-notifier: 2.0.0
-      supports-color: 5.5.0
-      touch: 3.1.1
-      undefsafe: 2.0.5
-
   nopt@5.0.0:
     dependencies:
       abbrev: 1.1.1
@@ -11617,12 +11430,6 @@ snapshots:
 
   p-map@2.1.0: {}
 
-  p-retry@6.2.1:
-    dependencies:
-      '@types/retry': 0.12.2
-      is-network-error: 1.1.0
-      retry: 0.13.1
-
   p-timeout@3.2.0:
     dependencies:
       p-finally: 1.0.0
@@ -11865,8 +11672,6 @@ snapshots:
 
   proxy-from-env@1.1.0: {}
 
-  pstree.remy@1.1.8: {}
-
   pump@3.0.2:
     dependencies:
       end-of-stream: 1.4.4
@@ -12187,8 +11992,6 @@ snapshots:
 
   retry@0.12.0: {}
 
-  retry@0.13.1: {}
-
   reusify@1.1.0: {}
 
   rfdc@1.4.1: {}
@@ -12432,10 +12235,6 @@ snapshots:
       is-arrayish: 0.3.2
     optional: true
 
-  simple-update-notifier@2.0.0:
-    dependencies:
-      semver: 7.7.1
-
   sisteransi@1.0.5: {}
 
   slash@3.0.0: {}
@@ -12594,10 +12393,6 @@ snapshots:
       client-only: 0.0.1
       react: 19.1.0
 
-  supports-color@5.5.0:
-    dependencies:
-      has-flag: 3.0.0
-
   supports-color@7.2.0:
     dependencies:
       has-flag: 4.0.0
@@ -12694,8 +12489,6 @@ snapshots:
       is-buffer: 2.0.5
       vfile: 4.2.1
 
-  touch@3.1.1: {}
-
   tr46@0.0.3: {}
 
   tree-sitter@0.22.4:
@@ -12800,8 +12593,6 @@ snapshots:
       has-symbols: 1.1.0
       which-boxed-primitive: 1.1.1
 
-  undefsafe@2.0.5: {}
-
   underscore@1.13.7: {}
 
   undici-types@5.26.5: {}
@@ -13029,7 +12820,7 @@ snapshots:
   vite-node@2.1.9(@types/node@20.17.30)(lightningcss@1.29.2):
     dependencies:
       cac: 6.7.14
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       es-module-lexer: 1.7.0
       pathe: 1.1.2
       vite: 5.4.18(@types/node@20.17.30)(lightningcss@1.29.2)
@@ -13064,7 +12855,7 @@ snapshots:
       '@vitest/spy': 2.1.9
       '@vitest/utils': 2.1.9
       chai: 5.2.0
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
       expect-type: 1.2.1
       magic-string: 0.30.17
       pathe: 1.1.2
@@ -13095,7 +12886,7 @@ snapshots:
     dependencies:
       chalk: 4.1.2
       commander: 9.5.0
-      debug: 4.4.0(supports-color@5.5.0)
+      debug: 4.4.0
     transitivePeerDependencies:
       - supports-color
 
@@ -13232,6 +13023,4 @@ snapshots:
 
   zod@3.24.3: {}
 
-  zod@3.25.13: {}
-
   zwitch@2.0.4: {}

python/llama-index-server/README.md

@@ -72,7 +72,7 @@ app = LlamaIndexServer(
 
 The LlamaIndexServer accepts the following configuration parameters:
 
-- `workflow_factory`: A callable that creates a workflow instance for each request. See [Workflow factory contract](#workflow-factory-contract) for more details.
+- `workflow_factory`: A callable that creates a workflow instance for each request
 - `logger`: Optional logger instance (defaults to uvicorn logger)
 - `use_default_routers`: Whether to include default routers (chat, static file serving)
 - `env`: Environment setting ('dev' enables CORS and UI by default)
@@ -83,36 +83,10 @@ The LlamaIndexServer accepts the following configuration parameters:
   - `ui_path`: Path for downloaded UI static files (default: ".ui")
   - `component_dir`: The directory for custom UI components rendering events emitted by the workflow. The default is None, which does not render custom UI components.
   - `llamacloud_index_selector`: Whether to show the LlamaCloud index selector in the chat UI (default: False). Requires `LLAMA_CLOUD_API_KEY` to be set.
-  - `dev_mode`: When enabled, you can update workflow code in the UI and see the changes immediately. It's currently in beta and only supports updating workflow code at `app/workflow.py`. You might also need to set `env="dev"` and start the server with the reload feature enabled.
 - `verbose`: Enable verbose logging
 - `api_prefix`: API route prefix (default: "/api")
 - `server_url`: The deployment URL of the server (default is None)
 
-## Workflow factory contract
-
-The `workflow_factory` provided will be called for each chat request to initialize a new workflow instance. Additionally, we provide the [ChatRequest](https://github.com/run-llama/create-llama/blob/afe9e9fc16427d20e1dfb635a45e7ed4b46285cb/python/llama-index-server/llama_index/server/api/models.py#L32) object, which includes the request information that is helpful for initializing the workflow. For example:
-```python
-def create_workflow(chat_request: ChatRequest) -> Workflow:
-    # using messages from the chat request to initialize the workflow
-    return MyCustomWorkflow(chat_request.messages)
-```
-
-Your workflow will be executed once for each chat request with the following input parameters are included in workflow's `StartEvent`:
-- `user_msg` [str]: The current user message
-- `chat_history` [list[[ChatMessage](https://docs.llamaindex.ai/en/stable/api_reference/prompts/#llama_index.core.prompts.ChatMessage)]]: All the previous messages of the conversation
-
-Example:
-```python
-@step
-def handle_start_event(ev: StartEvent) -> MyNextEvent:
-    user_msg = ev.user_msg
-    chat_history = ev.chat_history
-    ...
-```
-
-Your workflows can emit `UIEvent` events to render [Custom UI Components](https://github.com/run-llama/create-llama/blob/main/python/llama-index-server/docs/custom_ui_component.md) in the chat UI to improve the user experience.
-Furthermore, you can send `ArtifactEvent` events to render code or document [Artifacts](https://github.com/run-llama/create-llama/blob/main/python/llama-index-server/docs/custom_artifact_event.md) in a dedicated Canvas panel in the chat UI.
-
 ## Default Routers and Features
 
 ### Chat Router
@@ -133,6 +107,11 @@ When enabled, the server provides a chat interface at the root path (`/`) with:
 - Real-time chat interface
 - API endpoint integration
 
+### Custom UI Components
+
+You can add custom UI components for your workflow by providing `component_dir` config and adding custom .jsx or .tsx files to the directory.
+See [Custom UI Components](https://github.com/run-llama/create-llama/blob/main/llama-index-server/docs/custom_ui_component.md) for more details.
+
 ## Development Mode
 
 In development mode (`env="dev"`), the server:
@@ -141,20 +120,6 @@ In development mode (`env="dev"`), the server:
 - Automatically includes the chat UI
 - Provides more verbose logging
 
-### Workflow Editor (Beta)
-
-In development mode, you can set `dev_mode` to `True` in the UI configuration to enable the workflow editor, which allows you to edit the workflow code directly in the browser.
-
-```python
-app = LlamaIndexServer(
-    workflow_factory=create_workflow,
-    env="dev",
-    ui_config={"dev_mode": True},
-)
-```
-
-**Note**: The workflow editor is currently in beta and only supports updating LlamaIndexServer projects created with [create-llama](https://github.com/run-llama/create-llama/). You also need to start the server via `fastapi dev` so that the server can hot reload the workflow code.
-
 ## API Endpoints
 
 The server provides the following default endpoints:
@@ -165,10 +130,11 @@ The server provides the following default endpoints:
 
 ## Best Practices
 
-1. Use environment variables for sensitive configuration
-2. Enable verbose logging during development
-3. Configure CORS appropriately for your deployment environment
-4. Use starter questions to guide users in the chat UI
+1. Always provide a workflow factory that creates fresh workflow instances
+2. Use environment variables for sensitive configuration
+3. Enable verbose logging during development
+4. Configure CORS appropriately for your deployment environment
+5. Use starter questions to guide users in the chat UI
 
 ## Getting Started with a New Project
 

python/llama-index-server/docs/custom_artifact_event.md

@@ -1,59 +0,0 @@
-# Sending Artifacts to the UI
-
-In addition to UI events for custom components, LlamaIndex Server supports a special `ArtifactEvent` to send structured data like generated documents or code snippets to the UI. These artifacts are displayed in a dedicated "Canvas" panel in the chat interface.
-
-## Artifact Event Structure
-
-To send an artifact, your workflow needs to emit an event with `type: "artifact"`. The `data` payload of this event should include:
-
-- `type`: An `ArtifactType` enum indicating the type of artifact (e.g., `ArtifactType.DOCUMENT`, `ArtifactType.CODE`).
-- `created_at`: A timestamp (e.g., `int(time.time())`) indicating when the artifact was created.
-- `data`: An object containing the specific details of the artifact. The structure of this object depends on the artifact `type`. For example, `DocumentArtifactData` or `CodeArtifactData`.
-
-## Defining and Sending an ArtifactEvent
-
-First, import the necessary classes:
-
-```python
-import time
-from llama_index.server.api.models import (
-    Artifact,
-    ArtifactEvent,
-    ArtifactType,
-    DocumentArtifactData,
-    # CodeArtifactData, # Import if sending code artifacts
-)
-```
-
-Then, within your workflow logic, use `ctx.write_event_to_stream` to emit the event. Here's an example of sending a document artifact, taken from [document_workflow.py](/python/llama-index-server/examples/artifact/document_workflow.py):
-
-```python
-# Assuming 'ctx' is the workflow Context and 'content' is a markdown string
-
-ctx.write_event_to_stream(
-    ArtifactEvent(
-        data=Artifact(
-            type=ArtifactType.DOCUMENT,
-            created_at=int(time.time()),
-            data=DocumentArtifactData(
-                title="My cooking recipes",
-                content=content,
-                type="markdown",
-            ),
-        ),
-    )
-)
-```
-
-This will send the artifact to the LlamaIndex Server UI, where it will be rendered in the Canvas panel by a renderer depending on the artifact type. For `ArtifactType.DOCUMENT`, this uses a `DocumentArtifactViewer`.
-
-## Available Artifact Types
-
-LlamaIndex Server currently supports the following artifact types:
-
-- `ArtifactType.DOCUMENT`: For text-based documents like Markdown or HTML.
-  - `data` should be an instance of `DocumentArtifactData` which includes `title: str`, `content: str`, and `type: Literal["markdown", "html"]`.
-- `ArtifactType.CODE`: For code snippets.
-  - `data` should be an instance of `CodeArtifactData` which includes `title: str`, `code: str`, and `language: str`.
-
-Ensure you provide the correct data model corresponding to the `ArtifactType` you are sending. You can find these data models in `llama_index.server.api.models`. 

python/llama-index-server/examples/simple-agent/README.md

@@ -1,38 +0,0 @@
-# A simple chat app
-
-This guide explains how to set up and use the LlamaIndex server with a simple chatbot agent.
-
-## Prerequisites
-
-- [uv](https://github.com/astral-sh/uv) installed (a fast Python package manager and runner)
-- An OpenAI API key
-
-## Steps
-
-1. **Set the OpenAI API Key**
-
-   Export your OpenAI API key as an environment variable:
-
-   ```sh
-   export OPENAI_API_KEY=your_openai_api_key_here
-   ```
-
-2. **Run the Server Using uv**
-
-   Start the server with the following command:
-
-   ```sh
-   uv run workflow.py
-   ```
-
-   This will launch the FastAPI server using the workflow defined in `main.py`.
-
-3. **Access the Application**
-
-   Open your browser and go to:
-
-   ```
-   http://localhost:8000
-   ```
-
-   You will see the LlamaIndex chat app UI, where you can interact with the agent.

python/llama-index-server/examples/simple-agent/app/workflow.py

@@ -1,14 +0,0 @@
-from typing import Optional
-
-from llama_index.core.agent.workflow import AgentWorkflow
-from llama_index.core.settings import Settings
-from llama_index.llms.openai import OpenAI
-from llama_index.server.api.models import ChatRequest
-
-
-def create_workflow(chat_request: Optional[ChatRequest] = None) -> AgentWorkflow:
-    return AgentWorkflow.from_tools_or_functions(
-        tools_or_functions=[],
-        llm=Settings.llm or OpenAI(model="gpt-4o-mini"),
-        system_prompt="You are a helpful assistant that can tell a joke about Llama.",
-    )

python/llama-index-server/examples/simple-agent/main.py

@@ -1,29 +0,0 @@
-from app.workflow import create_workflow
-from fastapi import FastAPI
-
-from llama_index.server import LlamaIndexServer, UIConfig
-
-
-def create_app() -> FastAPI:
-    app = LlamaIndexServer(
-        workflow_factory=create_workflow,
-        ui_config=UIConfig(
-            app_title="Artifact",
-            starter_questions=[
-                "Tell me a funny joke.",
-                "Tell me some jokes about AI.",
-            ],
-            component_dir="components",
-            dev_mode=True,  # To show the dev UI, should disable this in production
-        ),
-    )
-    return app
-
-
-app = create_app()
-
-
-if __name__ == "__main__":
-    import uvicorn
-
-    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

python/llama-index-server/llama_index/server/api/routers/__init__.py

@@ -1,9 +1,4 @@
 from llama_index.server.api.routers.chat import chat_router
 from llama_index.server.api.routers.ui import custom_components_router
-from llama_index.server.api.routers.dev import dev_router
 
-__all__ = [
-    "chat_router",
-    "custom_components_router",
-    "dev_router",
-]
+__all__ = ["chat_router", "custom_components_router"]

python/llama-index-server/llama_index/server/api/routers/dev.py

@@ -1,102 +0,0 @@
-import os
-import tempfile
-
-from fastapi import APIRouter, HTTPException
-from pydantic import BaseModel, Field
-
-from llama_index.server.settings import server_settings
-from llama_index.server.utils.workflow_validation import validate_workflow_file
-
-
-class WorkflowFile(BaseModel):
-    last_modified: int
-    file_path: str = Field(
-        default="app/workflow.py",
-        description="Relative path to the workflow file",
-    )
-    content: str
-
-
-class WorkflowFileUpdate(BaseModel):
-    content: str
-    file_path: str = Field(
-        default="app/workflow.py",
-        description="Relative path to the workflow file",
-    )
-
-
-class WorkflowValidationResult(BaseModel):
-    valid: bool
-    error: str
-
-
-def dev_router() -> APIRouter:
-    # Use a prefix here to avoid conflicts with other routers
-    # but we probably don't need to do this
-    router = APIRouter(prefix="/dev", tags=["dev"])
-
-    default_workflow_file_path = "app/workflow.py"
-
-    @router.get("/files/workflow")
-    async def get_workflow_file() -> WorkflowFile:
-        """
-        Fetch the current workflow code
-        """
-        # Check if the file exists
-        if not os.path.exists(default_workflow_file_path):
-            raise HTTPException(
-                status_code=400,
-                detail="Dev mode is currently in beta. It only supports updating workflow file at 'app/workflow.py'",
-            )
-        stat = os.stat(default_workflow_file_path)
-        with open(default_workflow_file_path, "r") as f:
-            return WorkflowFile(
-                last_modified=int(stat.st_mtime),
-                file_path=default_workflow_file_path,
-                content=f.read(),
-            )
-
-    @router.post("/files/workflow/validate")
-    async def validate_workflow(file: WorkflowFileUpdate) -> WorkflowValidationResult:
-        """
-        Validate the current workflow code
-        """
-        try:
-            if file.file_path != default_workflow_file_path:
-                raise HTTPException(
-                    status_code=400, detail=f"Updating {file.file_path} is not allowed"
-                )
-            validate_workflow_file(
-                workflow_content=file.content,
-                factory_signature=server_settings.workflow_factory_signature,
-            )
-            return WorkflowValidationResult(valid=True, error="")
-        except Exception as e:
-            raise HTTPException(status_code=400, detail=str(e))
-
-    @router.put("/files/workflow")
-    async def put_workflow_file(update: WorkflowFileUpdate) -> None:
-        """
-        Update the current workflow code
-        """
-        # Validations
-        if update.file_path != default_workflow_file_path:
-            raise HTTPException(
-                status_code=400, detail=f"Updating {update.file_path} is not allowed"
-            )
-        with tempfile.NamedTemporaryFile("w", suffix=".py", delete=False) as tmp:
-            tmp.write(update.content)
-            tmp_path = tmp.name
-        try:
-            # Validate workflow file using the actual callable name from the workflow_factory
-            factory_func_name = server_settings.workflow_factory_signature
-            validate_workflow_file(
-                workflow_path=tmp_path, factory_signature=factory_func_name
-            )
-        except Exception as e:
-            raise HTTPException(status_code=400, detail=str(e))
-        # If all checks pass, overwrite the real file
-        with open(default_workflow_file_path, "w") as f:
-            f.write(update.content)
-
-    return router

python/llama-index-server/llama_index/server/chat_ui.py

@@ -5,7 +5,7 @@ from typing import Optional
 
 import requests
 
-CHAT_UI_VERSION = "0.2.1"
+CHAT_UI_VERSION = "0.1.6"
 
 
 def download_chat_ui(

python/llama-index-server/llama_index/server/server.py

@@ -10,11 +10,7 @@ from fastapi.staticfiles import StaticFiles
 from pydantic import BaseModel, Field
 
 from llama_index.core.workflow import Workflow
-from llama_index.server.api.routers import (
-    chat_router,
-    custom_components_router,
-    dev_router,
-)
+from llama_index.server.api.routers import chat_router, custom_components_router
 from llama_index.server.chat_ui import download_chat_ui
 from llama_index.server.settings import server_settings
 
@@ -37,9 +33,6 @@ class UIConfig(BaseModel):
     component_dir: Optional[str] = Field(
         default=None, description="The directory to custom UI components code"
     )
-    dev_mode: bool = Field(
-        default=False, description="Whether to enable the UI dev mode"
-    )
 
     def get_config_content(self) -> str:
         return json.dumps(
@@ -53,7 +46,6 @@ class UIConfig(BaseModel):
                 "COMPONENTS_API": f"{server_settings.api_url}/components"
                 if self.component_dir
                 else None,
-                "DEV_MODE": self.dev_mode,
             },
             indent=2,
         )
@@ -108,33 +100,24 @@ class LlamaIndexServer(FastAPI):
             server_settings.set_url(server_url)
         if api_prefix:
             server_settings.set_api_prefix(api_prefix)
-        server_settings.set_workflow_factory(workflow_factory.__name__)
+
+        if self.use_default_routers:
+            self.add_default_routers()
 
         if str(env).lower() == "dev":
             self.allow_cors("*")
             if self.ui_config.enabled is None:
                 self.ui_config.enabled = True
-        else:
-            if self.ui_config.enabled and self.ui_config.dev_mode:
-                raise ValueError(
-                    "UI dev mode requires the environment variable for LlamaIndexServer to be set to 'dev' and start the FastAPI app in dev mode."
-                )
+
         if self.ui_config.enabled is None:
             self.ui_config.enabled = False
 
-        # Routers
-        if self.use_default_routers:
-            self.add_default_routers()
-
-        # Should mount ui at the end
         if self.ui_config.enabled:
             self.mount_ui()
 
     # Default routers
     def add_default_routers(self) -> None:
         self.add_chat_router()
-        if self.ui_config.enabled and self.ui_config.dev_mode:
-            self.include_router(dev_router(), prefix=server_settings.api_prefix)
         self.mount_data_dir()
         self.mount_output_dir()
 

python/llama-index-server/llama_index/server/settings.py

@@ -11,10 +11,6 @@ class ServerSettings(BaseSettings):
         default="/api",
         description="The prefix for the API endpoints",
     )
-    workflow_factory_signature: str = Field(
-        default="",
-        description="The signature of the workflow factory function",
-    )
 
     @property
     def file_server_url_prefix(self) -> str:
@@ -44,9 +40,6 @@ class ServerSettings(BaseSettings):
         self.api_prefix = v
         self.validate_api_prefix(v)  # type: ignore
 
-    def set_workflow_factory(self, v: str) -> None:
-        self.workflow_factory_signature = v
-
     class Config:
         env_file_encoding = "utf-8"
 

python/llama-index-server/llama_index/server/utils/workflow_validation.py

@@ -1,54 +0,0 @@
-"""
-Utilities for validating workflow.py files (syntax and import checks only).
-"""
-
-import ast
-import importlib.util
-from typing import Optional
-
-
-def validate_workflow_file(
-    workflow_path: Optional[str] = None,
-    workflow_content: Optional[str] = None,
-    factory_signature: Optional[str] = None,
-) -> None:
-    """
-    Validate that the workflow file is syntactically correct, can be imported, and defines a callable factory function with the given name.
-    Raises an exception if invalid.
-    """
-    if workflow_path is None and workflow_content is None:
-        raise ValueError("Either workflow_path or workflow_content must be provided")
-
-    # 1. Syntax check
-    if workflow_path is not None:
-        with open(workflow_path, "r") as f:
-            content = f.read()
-    else:
-        if workflow_content is None:
-            raise ValueError(
-                "workflow_content must be provided if workflow_path is not specified"
-            )
-        content = workflow_content
-    try:
-        ast.parse(content)
-    except SyntaxError as e:
-        raise ValueError(f"Syntax error in workflow: {e}")
-
-    # 2. Import check (will catch missing modules, etc.)
-    spec = importlib.util.spec_from_file_location("workflow", workflow_path)
-    if spec is None or spec.loader is None:
-        raise ValueError(f"Could not load module specification for {workflow_path}")
-
-    mod = importlib.util.module_from_spec(spec)
-    try:
-        spec.loader.exec_module(mod)
-    except Exception as e:
-        raise ValueError(f"Import error: {e}")
-
-    # 3. Contract validation: require the given factory function name
-    if factory_signature:
-        if not hasattr(mod, factory_signature):
-            raise ValueError(f"Missing required function: '{factory_signature}'")
-        obj = getattr(mod, factory_signature)
-        if not callable(obj):
-            raise ValueError(f"'{factory_signature}' is not callable")

python/llama-index-server/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "llama-index-server"
-version = "0.1.16"
+version = "0.1.15"
 description = "llama-index fastapi server"
 readme = "README.md"
 license = "MIT"