Slack Helpdesk Bot: Answer from Internal Knowledge Base

Turns a Slack channel into a self-serve helpdesk. An employee mentions the bot with a question, the workflow retrieves the most relevant internal docs from a Supabase vector store, and an OpenAI model writes an answer grounded only in those passages — with links back to the source articles so nobody acts on a hallucination.

When your IT or People team fields the same policy and how-to questions every day and you want instant, sourced answers in the channel where people already ask. Best for orgs that keep runbooks, HR policies, or product docs in one searchable place.

1. 1A Slack `app_mention` event fires when someone tags the bot.
2. 2The question text is embedded and used to query the Supabase knowledge base for the top matching chunks.
3. 3A confidence check inspects similarity scores — low matches route to a fallback reply suggesting a human.
4. 4OpenAI generates an answer constrained to the retrieved passages, appending source titles.
5. 5The bot posts the answer back in the original Slack thread.