Wiring n8n into Slack: @mention the bot to run an automation workflow

说明与用途

在 Slack 中，@提及触发 n8n 工作流并将结果返回到频道，消除了手动步骤。

Automating release notices in Slack required manual steps: leaving the channel, opening n8n, executing a workflow, and pasting the result back.

A single @mention in Slack now triggers an n8n workflow and returns the output in the channel, eliminating manual steps.

Create a Slack bot with Bot Token and scopes chat:write, app_mentions:read
Install the N8nAgent plugin (v0.2.0) from the marketplace
Create a processor with method Agent and Runner n8n
Set the Webhook URL on the AI capability tab to http://n8n:5678/webhook/langbot-slack
Build an n8n workflow with a Webhook node (POST, path langbot-slack) and a Respond to Webhook node returning JSON
Bind an event route in the bot detail page: event pattern message.received, target the processor, filter message_element_types contains At
Confirm the trigger condition @ is enabled in the processor’s trigger conditions tab
Verify by POSTing a test message to the webhook URL from another container

Sending a release notice means someone leaving the channel, opening n8n, clicking Execute and pasting the result back.

4.11 makes "who runs it" a plugin: a processor picks a plugin-provided executor under Runner, and n8n is one.

Set Webhook URL on the AI capability tab to an address the runtime container can reach: http://n8n:5678/webhook/langbot-slack