improvement(copilot): structured metadata context + start block deprecation (#1362)

* progress

* progress

* deploy command update

* add trigger mode modal

* fix trigger icons'

* fix corners for add trigger card

* update serialization error visual in console

* works

* improvement(copilot-context): structured context for copilot

* forgot long description

* Update metadata params

* progress

* add better workflow ux

* progress

* highlighting works

* trigger card

* default agent workflow change

* fix build error

* remove any casts

* address greptile comments

* Diff input format

* address greptile comments

* improvement: ui/ux

* improvement: changed to vertical scrolling

* fix(workflow): ensure new blocks from sidebar click/drag use getUniqueBlockName (with semantic trigger base when applicable)

* Validation + build/edit mark complete

* fix trigger dropdown

* Copilot stuff (lots of it)

* Temp update prod dns

* fix trigger check

* fix

* fix trigger mode check

* Fix yaml imports

* Fix autolayout error

* fix deployed chat

* Fix copilot input text overflow

* fix trigger mode persistence in addBlock with enableTriggerMode flag passed in

* Lint

* Fix failing tests

* Reset ishosted

* Lint

* input format for legacy starter

* Fix executor

---------

Co-authored-by: Siddharth Ganesan <siddharthganesan@gmail.com>
Co-authored-by: Emir Karabeg <emirkarabeg@berkeley.edu>

apps/sim/app/api/chat/utils.ts

@@ -13,6 +13,7 @@ import { hasAdminPermission } from '@/lib/permissions/utils'
 import { processStreamingBlockLogs } from '@/lib/tokenization'
 import { getEmailDomain } from '@/lib/urls/utils'
 import { decryptSecret, generateRequestId } from '@/lib/utils'
+import { TriggerUtils } from '@/lib/workflows/triggers'
 import { getBlock } from '@/blocks'
 import { Executor } from '@/executor'
 import type { BlockLog, ExecutionResult } from '@/executor/types'
@@ -430,9 +431,10 @@ export async function executeWorkflowForChat(
     (acc, [id, block]) => {
       const blockConfig = getBlock(block.type)
       const isTriggerBlock = blockConfig?.category === 'triggers'
+      const isChatTrigger = block.type === 'chat_trigger'
 
-      // Skip trigger blocks during chat execution
-      if (!isTriggerBlock) {
+      // Keep all non-trigger blocks and also keep the chat_trigger block
+      if (!isTriggerBlock || isChatTrigger) {
         acc[id] = block
       }
       return acc
@@ -487,8 +489,10 @@ export async function executeWorkflowForChat(
 
   // Filter edges to exclude connections to/from trigger blocks (same as manual execution)
   const triggerBlockIds = Object.keys(mergedStates).filter((id) => {
-    const blockConfig = getBlock(mergedStates[id].type)
-    return blockConfig?.category === 'triggers'
+    const type = mergedStates[id].type
+    const blockConfig = getBlock(type)
+    // Exclude chat_trigger from the list so its edges are preserved
+    return blockConfig?.category === 'triggers' && type !== 'chat_trigger'
   })
 
   const filteredEdges = edges.filter(
@@ -613,9 +617,29 @@ export async function executeWorkflowForChat(
       // Set up logging on the executor
       loggingSession.setupExecutor(executor)
 
+      // Determine the start block for chat execution
+      const startBlock = TriggerUtils.findStartBlock(mergedStates, 'chat')
+
+      if (!startBlock) {
+        const errorMessage =
+          'No Chat trigger configured for this workflow. Add a Chat Trigger block to enable chat execution.'
+        logger.error(`[${requestId}] ${errorMessage}`)
+        await loggingSession.safeCompleteWithError({
+          endedAt: new Date().toISOString(),
+          totalDurationMs: 0,
+          error: {
+            message: errorMessage,
+            stackTrace: undefined,
+          },
+        })
+        throw new Error(errorMessage)
+      }
+
+      const startBlockId = startBlock.blockId
+
       let result
       try {
-        result = await executor.execute(workflowId)
+        result = await executor.execute(workflowId, startBlockId)
       } catch (error: any) {
         logger.error(`[${requestId}] Chat workflow execution failed:`, error)
         await loggingSession.safeCompleteWithError({