feat(slack): added ephemeral message send tool, updated ci, updated docs

.github/workflows/ci.yml

@@ -144,7 +144,6 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           provenance: false
           sbom: false
-          no-cache: true
 
   # Build ARM64 images for GHCR (main branch only, runs in parallel)
   build-ghcr-arm64:
@@ -205,7 +204,6 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           provenance: false
           sbom: false
-          no-cache: true
 
   # Create GHCR multi-arch manifests (only for main, after both builds)
   create-ghcr-manifests:

.github/workflows/images.yml

@@ -97,7 +97,6 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           provenance: false
           sbom: false
-          no-cache: true
 
   build-ghcr-arm64:
     name: Build ARM64 (GHCR Only)
@@ -144,11 +143,10 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           provenance: false
           sbom: false
-          no-cache: true
 
   create-ghcr-manifests:
     name: Create GHCR Manifests
-    runs-on: blacksmith-8vcpu-ubuntu-2404
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     needs: [build-amd64, build-ghcr-arm64]
     if: github.ref == 'refs/heads/main'
     strategy:

.github/workflows/test-build.yml

@@ -110,7 +110,7 @@ jobs:
           RESEND_API_KEY: 'dummy_key_for_ci_only'
           AWS_REGION: 'us-west-2'
           ENCRYPTION_KEY: '7cf672e460e430c1fba707575c2b0e2ad5a99dddf9b7b7e3b5646e630861db1c' # dummy key for CI only
-        run: bun run build
+        run: bunx turbo run build --filter=sim
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5

apps/docs/content/docs/en/tools/jira_service_management.mdx

@@ -116,7 +116,7 @@ Create a new service request in Jira Service Management
 | `summary` | string | Yes | Summary/title for the service request |
 | `description` | string | No | Description for the service request |
 | `raiseOnBehalfOf` | string | No | Account ID of customer to raise request on behalf of |
-| `requestFieldValues` | json | No | Custom field values as key-value pairs \(overrides summary/description if provided\) |
+| `requestFieldValues` | json | No | Request field values as key-value pairs \(overrides summary/description if provided\) |
 | `requestParticipants` | string | No | Comma-separated account IDs to add as request participants |
 | `channel` | string | No | Channel the request originates from \(e.g., portal, email\) |
 

apps/docs/content/docs/en/tools/slack.mdx

@@ -1,6 +1,6 @@
 ---
 title: Slack
-description: Send, update, delete messages, add reactions in Slack or trigger workflows from Slack events
+description: Send, update, delete messages, send ephemeral messages, add reactions in Slack or trigger workflows from Slack events
 ---
 
 import { BlockInfoCard } from "@/components/ui/block-info-card"
@@ -59,7 +59,7 @@ If you encounter issues with the Slack integration, contact us at [help@sim.ai](
 
 ## Usage Instructions
 
-Integrate Slack into the workflow. Can send, update, and delete messages, create canvases, read messages, and add reactions. Requires Bot Token instead of OAuth in advanced mode. Can be used in trigger mode to trigger a workflow when a message is sent to a channel.
+Integrate Slack into the workflow. Can send, update, and delete messages, send ephemeral messages visible only to a specific user, create canvases, read messages, and add reactions. Requires Bot Token instead of OAuth in advanced mode. Can be used in trigger mode to trigger a workflow when a message is sent to a channel.
 
 
 
@@ -80,6 +80,7 @@ Send messages to Slack channels or direct messages. Supports Slack mrkdwn format
 | `dmUserId` | string | No | Slack user ID for direct messages \(e.g., U1234567890\) |
 | `text` | string | Yes | Message text to send \(supports Slack mrkdwn formatting\) |
 | `threadTs` | string | No | Thread timestamp to reply to \(creates thread reply\) |
+| `blocks` | json | No | Block Kit layout blocks as a JSON array. When provided, text becomes the fallback notification text. |
 | `files` | file[] | No | Files to attach to the message |
 
 #### Output
@@ -146,6 +147,29 @@ Send messages to Slack channels or direct messages. Supports Slack mrkdwn format
 | `fileCount` | number | Number of files uploaded \(when files are attached\) |
 | `files` | file[] | Files attached to the message |
 
+### `slack_ephemeral_message`
+
+Send an ephemeral message visible only to a specific user in a channel. Optionally reply in a thread. The message does not persist across sessions.
+
+#### Input
+
+| Parameter | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `authMethod` | string | No | Authentication method: oauth or bot_token |
+| `botToken` | string | No | Bot token for Custom Bot |
+| `channel` | string | Yes | Slack channel ID \(e.g., C1234567890\) |
+| `user` | string | Yes | User ID who will see the ephemeral message \(e.g., U1234567890\). Must be a member of the channel. |
+| `text` | string | Yes | Message text to send \(supports Slack mrkdwn formatting\) |
+| `threadTs` | string | No | Thread timestamp to reply in. When provided, the ephemeral message appears as a thread reply. |
+| `blocks` | json | No | Block Kit layout blocks as a JSON array. When provided, text becomes the fallback notification text. |
+
+#### Output
+
+| Parameter | Type | Description |
+| --------- | ---- | ----------- |
+| `messageTs` | string | Timestamp of the ephemeral message \(cannot be used with chat.update\) |
+| `channel` | string | Channel ID where the ephemeral message was sent |
+
 ### `slack_canvas`
 
 Create and share Slack canvases in channels. Canvases are collaborative documents within Slack.
@@ -682,6 +706,7 @@ Update a message previously sent by the bot in Slack
 | `channel` | string | Yes | Channel ID where the message was posted \(e.g., C1234567890\) |
 | `timestamp` | string | Yes | Timestamp of the message to update \(e.g., 1405894322.002768\) |
 | `text` | string | Yes | New message text \(supports Slack mrkdwn formatting\) |
+| `blocks` | json | No | Block Kit layout blocks as a JSON array. When provided, text becomes the fallback notification text. |
 
 #### Output
 

apps/sim/app/api/tools/slack/send-ephemeral/route.ts

@@ -0,0 +1,96 @@
+import { createLogger } from '@sim/logger'
+import { type NextRequest, NextResponse } from 'next/server'
+import { z } from 'zod'
+import { checkInternalAuth } from '@/lib/auth/hybrid'
+import { generateRequestId } from '@/lib/core/utils/request'
+
+export const dynamic = 'force-dynamic'
+
+const logger = createLogger('SlackSendEphemeralAPI')
+
+const SlackSendEphemeralSchema = z.object({
+  accessToken: z.string().min(1, 'Access token is required'),
+  channel: z.string().min(1, 'Channel ID is required'),
+  user: z.string().min(1, 'User ID is required'),
+  text: z.string().min(1, 'Message text is required'),
+  thread_ts: z.string().optional().nullable(),
+  blocks: z.array(z.record(z.unknown())).optional().nullable(),
+})
+
+export async function POST(request: NextRequest) {
+  const requestId = generateRequestId()
+
+  try {
+    const authResult = await checkInternalAuth(request, { requireWorkflowId: false })
+
+    if (!authResult.success) {
+      logger.warn(`[${requestId}] Unauthorized Slack ephemeral send attempt: ${authResult.error}`)
+      return NextResponse.json(
+        {
+          success: false,
+          error: authResult.error || 'Authentication required',
+        },
+        { status: 401 }
+      )
+    }
+
+    logger.info(
+      `[${requestId}] Authenticated Slack ephemeral send request via ${authResult.authType}`,
+      { userId: authResult.userId }
+    )
+
+    const body = await request.json()
+    const validatedData = SlackSendEphemeralSchema.parse(body)
+
+    logger.info(`[${requestId}] Sending ephemeral message`, {
+      channel: validatedData.channel,
+      user: validatedData.user,
+      threadTs: validatedData.thread_ts ?? undefined,
+    })
+
+    const response = await fetch('https://slack.com/api/chat.postEphemeral', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        Authorization: `Bearer ${validatedData.accessToken}`,
+      },
+      body: JSON.stringify({
+        channel: validatedData.channel,
+        user: validatedData.user,
+        text: validatedData.text,
+        ...(validatedData.thread_ts && { thread_ts: validatedData.thread_ts }),
+        ...(validatedData.blocks &&
+          validatedData.blocks.length > 0 && { blocks: validatedData.blocks }),
+      }),
+    })
+
+    const data = await response.json()
+
+    if (!data.ok) {
+      logger.error(`[${requestId}] Slack API error:`, data.error)
+      return NextResponse.json(
+        { success: false, error: data.error || 'Failed to send ephemeral message' },
+        { status: 400 }
+      )
+    }
+
+    logger.info(`[${requestId}] Ephemeral message sent successfully`)
+
+    return NextResponse.json({
+      success: true,
+      output: {
+        messageTs: data.message_ts,
+        channel: validatedData.channel,
+      },
+    })
+  } catch (error) {
+    logger.error(`[${requestId}] Error sending ephemeral message:`, error)
+    return NextResponse.json(
+      {
+        success: false,
+        error: error instanceof Error ? error.message : 'Unknown error occurred',
+      },
+      { status: 500 }
+    )
+  }
+}

apps/sim/app/api/tools/slack/send-message/route.ts

@@ -17,6 +17,7 @@ const SlackSendMessageSchema = z
     userId: z.string().optional().nullable(),
     text: z.string().min(1, 'Message text is required'),
     thread_ts: z.string().optional().nullable(),
+    blocks: z.array(z.record(z.unknown())).optional().nullable(),
     files: RawFileInputArraySchema.optional().nullable(),
   })
   .refine((data) => data.channel || data.userId, {
@@ -63,6 +64,7 @@ export async function POST(request: NextRequest) {
         userId: validatedData.userId ?? undefined,
         text: validatedData.text,
         threadTs: validatedData.thread_ts ?? undefined,
+        blocks: validatedData.blocks ?? undefined,
         files: validatedData.files ?? undefined,
       },
       requestId,

apps/sim/app/api/tools/slack/update-message/route.ts

@@ -13,6 +13,7 @@ const SlackUpdateMessageSchema = z.object({
   channel: z.string().min(1, 'Channel is required'),
   timestamp: z.string().min(1, 'Message timestamp is required'),
   text: z.string().min(1, 'Message text is required'),
+  blocks: z.array(z.record(z.unknown())).optional().nullable(),
 })
 
 export async function POST(request: NextRequest) {
@@ -57,6 +58,8 @@ export async function POST(request: NextRequest) {
         channel: validatedData.channel,
         ts: validatedData.timestamp,
         text: validatedData.text,
+        ...(validatedData.blocks &&
+          validatedData.blocks.length > 0 && { blocks: validatedData.blocks }),
       }),
     })
 

apps/sim/app/api/tools/slack/utils.ts

@@ -11,7 +11,8 @@ export async function postSlackMessage(
   accessToken: string,
   channel: string,
   text: string,
-  threadTs?: string | null
+  threadTs?: string | null,
+  blocks?: unknown[] | null
 ): Promise<{ ok: boolean; ts?: string; channel?: string; message?: any; error?: string }> {
   const response = await fetch('https://slack.com/api/chat.postMessage', {
     method: 'POST',
@@ -23,6 +24,7 @@ export async function postSlackMessage(
       channel,
       text,
       ...(threadTs && { thread_ts: threadTs }),
+      ...(blocks && blocks.length > 0 && { blocks }),
     }),
   })
 
@@ -220,6 +222,7 @@ export interface SlackMessageParams {
   userId?: string
   text: string
   threadTs?: string | null
+  blocks?: unknown[] | null
   files?: any[] | null
 }
 
@@ -242,7 +245,7 @@ export async function sendSlackMessage(
   }
   error?: string
 }> {
-  const { accessToken, text, threadTs, files } = params
+  const { accessToken, text, threadTs, blocks, files } = params
   let { channel } = params
 
   if (!channel && params.userId) {
@@ -258,7 +261,7 @@ export async function sendSlackMessage(
   if (!files || files.length === 0) {
     logger.info(`[${requestId}] No files, using chat.postMessage`)
 
-    const data = await postSlackMessage(accessToken, channel, text, threadTs)
+    const data = await postSlackMessage(accessToken, channel, text, threadTs, blocks)
 
     if (!data.ok) {
       logger.error(`[${requestId}] Slack API error:`, data.error)
@@ -282,7 +285,7 @@ export async function sendSlackMessage(
   if (fileIds.length === 0) {
     logger.warn(`[${requestId}] No valid files to upload, sending text-only message`)
 
-    const data = await postSlackMessage(accessToken, channel, text, threadTs)
+    const data = await postSlackMessage(accessToken, channel, text, threadTs, blocks)
 
     if (!data.ok) {
       return { success: false, error: data.error || 'Failed to send message' }