Bot for Slack ACTION
Reply to a Message Thread
Send a message as a threaded reply (Bot). See postMessage or scheduleMessage docs here
- Action
- Writes data
- API key
- SDK
- MCP
IMPLEMENTATION
Call this tool
Connect a user's Bot for Slack account once, then configure and run Reply to a Message Thread from your backend or agent.
import { PipedreamClient } from "@pipedream/sdk"
const pd = new PipedreamClient({
projectId: process.env.PIPEDREAM_PROJECT_ID!,
clientId: process.env.PIPEDREAM_CLIENT_ID!,
clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
projectEnvironment: "production",
})
const result = await pd.actions.run({
id: "slack_bot-reply-to-a-message",
externalUserId: "{external_user_id}", // any stable ID for this user in your system
configuredProps: {
slack_bot: { authProvisionId: "apn_xxxxxxx" },
conversation: "Channel",
text: "Text",
},
})
console.log(result)curl -X POST https://api.pipedream.com/v1/connect/{project_id}/actions/run \
-H "Content-Type: application/json" \
-H "X-PD-Environment: production" \
-H "Authorization: Bearer {access_token}" \
-d '{
"external_user_id": "{external_user_id}",
"id": "slack_bot-reply-to-a-message",
"configured_props": {
"slack_bot": { "authProvisionId": "apn_xxxxxxx" },
"conversation": "Channel",
"text": "Text"
}
}'// accessToken: mint a short-lived token with the Connect SDK — see the MCP guide
const transport = new StreamableHTTPClientTransport(
new URL("https://remote.mcp.pipedream.net/v3"),
{
requestInit: {
headers: {
Authorization: `Bearer ${accessToken}`,
"x-pd-project-id": "{project_id}",
"x-pd-environment": "production",
"x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
"x-pd-app-slug": "slack_bot",
},
},
},
)
const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)
const { tools } = await mcp.listTools()
// listTools() hands your model this tool's input schema, so it can
// fill the arguments itself:
const result = await mcp.callTool({
name: "slack_bot-reply-to-a-message",
arguments: {
conversation: "Channel",
text: "Text",
},
})SCHEMA
Inputs
Pipedream supplies the connected account. Your application provides the operation-specific values below. Dynamic inputs are resolved against that user's account.
| Property | Type | Description |
|---|---|---|
conversation Channel | string | Select a public or private channel, or a user or group. In order to list a Slack channel, your bot must be a member of that channel, and in order to list private channels, your bot must have the groups:read scope in the OAuth & Permissions settings in Slack for this bot. Required Dynamic |
text Text | string | Text of the message to send (see Slack's formatting docs). This field is usually necessary, unless you're providing only attachments instead. Required |
mrkdwn Send text as Slack mrkdwn | boolean | Optional |
post_at Schedule message | string | Messages can only be scheduled up to 120 days in advance, and cannot be scheduled for the past. The datetime should be in ISO 8601 format. (Example: 2014-01-01T00:00:00Z) Optional |
include_sent_via_pipedream_flag Include link to Pipedream | boolean | Defaults to true, includes a link to Pipedream at the end of your Slack message. Optional |
customizeBotSettings Customize Bot Settings | boolean | Customize the username and/or icon of the Bot Optional |
username Bot Username | string | Optionally customize your bot's user name (default is Pipedream). Must be used in conjunction with Send as User set to false, otherwise ignored. Optional |
icon_emoji Icon (emoji) | string | Optionally provide an emoji to use as the icon for this message. E.g., :fire: Overrides icon_url. Must be used in conjunction with Send as User set to false, otherwise ignored. Optional Dynamic |
icon_url Icon (image URL) | string | Optionally provide an image URL to use as the icon for this message. Must be used in conjunction with Send as User set to false, otherwise ignored. Optional |
replyToThread Reply to Thread | boolean | Reply to an existing thread Optional |
thread_ts Message Timestamp | string | Timestamp of a message. e.g. 1403051575.000407. Required |
thread_broadcast Send Channel Message | boolean | If true, posts in the thread and channel. Used in conjunction with Message Timestamp and indicates whether reply should be made visible to everyone in the channel. Defaults to false. Optional |
addMessageMetadata Add Message Metadata | boolean | Set the metadata event type and payload Optional |
metadata_event_type Metadata Event Type | string | The name of the metadata event. Example: task_created Optional |
metadata_event_payload Metadata Event Payload | string | The payload of the metadata event. Must be a JSON string. Example: { "id": "11223", "title": "Redesign Homepage"} Optional |
configureUnfurlSettings Configure Unfurl Settings | boolean | Configure settings for unfurling links and media Optional |
unfurl_links Unfurl Links | boolean | Default to false. Pass true to enable unfurling of links. Optional |
unfurl_media Unfurl Media | boolean | Defaults to false. Pass true to enable unfurling of media content. Optional |
REFERENCE
Tool details
Behavior hints are published with the component in the Pipedream registry and surface as MCP tool annotations, so an agent can reason about a tool before it calls it.
- Registry key
- slack_bot-reply-to-a-message
- Version
- 0.0.6
- App
- Bot for Slack
- Authentication
- API key
- Behavior
- May modify external data
- Source
- View on GitHub ↗