diff --git a/common/constants/llm.ts b/common/constants/llm.ts
index 48da38fa..c6988d28 100644
--- a/common/constants/llm.ts
+++ b/common/constants/llm.ts
@@ -44,5 +44,6 @@ export const DEFAULT_USER_NAME = 'User';
 
 export const TEXT2VEGA_INPUT_SIZE_LIMIT = 400;
 
-export const TEXT2VEGA_AGENT_CONFIG_ID = 'os_text2vega';
+export const TEXT2VEGA_RULE_BASED_AGENT_CONFIG_ID = 'os_text2vega';
+export const TEXT2VEGA_WITH_INSTRUCTIONS_AGENT_CONFIG_ID = 'os_text2vega_with_instructions';
 export const TEXT2PPL_AGENT_CONFIG_ID = 'os_query_assist_ppl';
diff --git a/public/components/visualization/source_selector.tsx b/public/components/visualization/source_selector.tsx
index f053a074..90438a4e 100644
--- a/public/components/visualization/source_selector.tsx
+++ b/public/components/visualization/source_selector.tsx
@@ -14,7 +14,11 @@ import {
   DataSourceOption,
 } from '../../../../../src/plugins/data/public';
 import { StartServices } from '../../types';
-import { TEXT2VEGA_AGENT_CONFIG_ID } from '../../../common/constants/llm';
+import {
+  TEXT2PPL_AGENT_CONFIG_ID,
+  TEXT2VEGA_RULE_BASED_AGENT_CONFIG_ID,
+  TEXT2VEGA_WITH_INSTRUCTIONS_AGENT_CONFIG_ID,
+} from '../../../common/constants/llm';
 import { getAssistantService } from '../../services';
 
 const DEFAULT_DATA_SOURCE_TYPE = 'DEFAULT_INDEX_PATTERNS';
@@ -110,13 +114,20 @@ export const SourceSelector = ({
 
       const assistantService = getAssistantService();
       /**
-       * Check each data source to see if text to vega agent is configured or not
+       * Check each data source to see if text to vega agents are configured or not
        * If not configured, disable the corresponding index pattern from the selection list
        */
       Object.keys(dataSourceIdToIndexPatternIds).forEach(async (key) => {
-        const res = await assistantService.client.agentConfigExists(TEXT2VEGA_AGENT_CONFIG_ID, {
-          dataSourceId: key !== 'DEFAULT' ? key : undefined,
-        });
+        const res = await assistantService.client.agentConfigExists(
+          [
+            TEXT2VEGA_RULE_BASED_AGENT_CONFIG_ID,
+            TEXT2VEGA_WITH_INSTRUCTIONS_AGENT_CONFIG_ID,
+            TEXT2PPL_AGENT_CONFIG_ID,
+          ],
+          {
+            dataSourceId: key !== 'DEFAULT' ? key : undefined,
+          }
+        );
         if (!res.exists) {
           dataSourceIdToIndexPatternIds[key].forEach((indexPatternId) => {
             indexPatternOptions.options.forEach((option) => {
diff --git a/public/services/assistant_client.ts b/public/services/assistant_client.ts
index 624b86d8..1d151a9b 100644
--- a/public/services/assistant_client.ts
+++ b/public/services/assistant_client.ts
@@ -38,9 +38,10 @@ export class AssistantClient {
   };
 
   /**
-   * Return if the given agent config name has agent id configured
+   * Check if the given agent config name has agent id configured
+   * Return false if any of the given config name has no agent id configured
    */
-  agentConfigExists = (agentConfigName: string, options?: Options) => {
+  agentConfigExists = (agentConfigName: string | string[], options?: Options) => {
     return this.http.fetch<{ exists: boolean }>({
       method: 'GET',
       path: AGENT_API.CONFIG_EXISTS,
diff --git a/server/routes/agent_routes.ts b/server/routes/agent_routes.ts
index abbbd087..227143a7 100644
--- a/server/routes/agent_routes.ts
+++ b/server/routes/agent_routes.ts
@@ -51,7 +51,7 @@ export function registerAgentRoutes(router: IRouter, assistantService: Assistant
         query: schema.oneOf([
           schema.object({
             dataSourceId: schema.maybe(schema.string()),
-            agentConfigName: schema.string(),
+            agentConfigName: schema.oneOf([schema.string(), schema.arrayOf(schema.string())]),
           }),
         ]),
       },
@@ -59,8 +59,12 @@ export function registerAgentRoutes(router: IRouter, assistantService: Assistant
     router.handleLegacyErrors(async (context, req, res) => {
       try {
         const assistantClient = assistantService.getScopedClient(req, context);
-        const agentId = await assistantClient.getAgentIdByConfigName(req.query.agentConfigName);
-        return res.ok({ body: { exists: Boolean(agentId) } });
+        const promises = Array<string>()
+          .concat(req.query.agentConfigName)
+          .map((configName) => assistantClient.getAgentIdByConfigName(configName));
+        const results = await Promise.all(promises);
+        const exists = results.every((r) => Boolean(r));
+        return res.ok({ body: { exists } });
       } catch (e) {
         return res.ok({ body: { exists: false } });
       }
diff --git a/server/routes/text2viz_routes.ts b/server/routes/text2viz_routes.ts
index bf6b9cf9..308808c5 100644
--- a/server/routes/text2viz_routes.ts
+++ b/server/routes/text2viz_routes.ts
@@ -7,8 +7,9 @@ import { schema } from '@osd/config-schema';
 import { IRouter } from '../../../../src/core/server';
 import {
   TEXT2PPL_AGENT_CONFIG_ID,
-  TEXT2VEGA_AGENT_CONFIG_ID,
+  TEXT2VEGA_RULE_BASED_AGENT_CONFIG_ID,
   TEXT2VEGA_INPUT_SIZE_LIMIT,
+  TEXT2VEGA_WITH_INSTRUCTIONS_AGENT_CONFIG_ID,
   TEXT2VIZ_API,
 } from '../../common/constants/llm';
 import { AssistantServiceSetup } from '../services/assistant_service';
@@ -42,7 +43,10 @@ export function registerText2VizRoutes(router: IRouter, assistantService: Assist
     router.handleLegacyErrors(async (context, req, res) => {
       const assistantClient = assistantService.getScopedClient(req, context);
       try {
-        const response = await assistantClient.executeAgentByConfigName(TEXT2VEGA_AGENT_CONFIG_ID, {
+        const agentConfigName = req.body.input_instruction
+          ? TEXT2VEGA_WITH_INSTRUCTIONS_AGENT_CONFIG_ID
+          : TEXT2VEGA_RULE_BASED_AGENT_CONFIG_ID;
+        const response = await assistantClient.executeAgentByConfigName(agentConfigName, {
           input_question: req.body.input_question,
           input_instruction: req.body.input_instruction,
           ppl: req.body.ppl,