---
title: Using Slack
description: How we use Slack for internal and external communication.
---

# Using Slack

We use Slack for internal comms and to chat with customers, partners, and vendors. When joining the team, you can sign up for Slack (`langfuse.slack.com`) via your Google account.

We use Slack mostly asynchronously to reduce noise and allow everyone to focus on their own work. If you need something urgent, send a DM, start a call, or — if you're both in the office — tap someone on the shoulder. See [Working Remotely](/handbook/how-we-work/remote) for broader async norms.

## Suggested configuration

- Enable notifications only for mentions and direct messages and the sync/notifying channels mentioned below.
- Set up `queue-<name>-x-<name>` private channels to send non-notifying messages to colleagues. SLA to respond within 24 hours.
- Set up `All unreads` in the main menu in order to quickly get through the backlog of unread messages.

## Most important channels

| Channel                                                                                                      | Purpose                                                                                                                                                    |
| ------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `team`                                                                                                       | General team chat (notifying)                                                                                                                              |
| `team-async`                                                                                                 | General team chat (non-notifying, suitable for most messages)                                                                                              |
| `engineering`, `product`, `user-feedback`, `market-insights`, `media-recommendations`, `marketing`, `growth` | Topical channels (non-notifying)                                                                                                                           |
| `incidents`                                                                                                  | Incident communication (notifying)                                                                                                                         |
| `memehq`                                                                                                     | Arguably the most fun channel                                                                                                                              |
| `ai-trickshots`                                                                                              | Show off what you've got done with AI (non-notifying)                                                                                                      |
| `queue-<name>-x-<name>`                                                                                      | Private channel for non-notifying messages between team members                                                                                            |
| `ext-*`                                                                                                      | Customer communication. Sales/GTM has some notifying in order to drive the conversation forward. Rest of team can mute them as they are managed via Pylon. |
| `vendor-*`                                                                                                   | Vendor communication. Join the channels which are relevant to you.                                                                                         |
| `partner-*`                                                                                                  | Partner communication. Join the channels which are relevant to you.                                                                                        |

## External channels

For some prioritized customer groups, we use shared Slack Connect channels for support and sales.

### Sync to Pylon

We use the following prefixes for channels

- customers: `ext-` (synced in Pylon, Pylon app joins automatically)
- partners: `partner-` (**not** synced in Pylon)
- vendors: `vendor-` (**not** synced in Pylon)

All support/sales communication in `ext-*` channels happens via Pylon.

### Create new external Slack connect channel

- Use the appropriate channel prefix (e.g., `ext-`, `partner-`, `vendor-`)
- Shared channels should be public channels as this allows for discovery within the customer's Slack organization.
- When creating an `ext-*` channel (customers):
  - Invite external members
  - Invite internal members explicitly, do not make the channel a default channel for everyone. Only invite Clemens and Akio who want to be a member of all external channels. Everyone else can help out in this channel via the Pylon integration, the App automatically joins all `ext-*` channels.
  - **Private channels:** The Pylon app cannot automatically join private channels. You need to manually:
    1. Add the Pylon app to the channel (in Slack, open the channel → click the channel name → _Integrations_ → _Add apps_ → search for Pylon).
    2. Add the Slack channel as an account in Pylon: [app.usepylon.com/customers/accounts/add](https://app.usepylon.com/customers/accounts/add).
  - Optionally: once you see that the external members joined, share a welcome message in the channel and then mute the channel on Slack. From then on, you can help out in this channel via the Pylon integration.

### Configure Slack for external channels

- For most channels and most team members: you can mute or leave the existing `ext-*` channels. You will get assigned to threads via Pylon.
- For high-value accounts, the person managing the relationship should stay in the channel as this makes it easier to outbound engage the customer → use direct channel to our advantage to be close to the most important customers.

<!-- agent-instructions -->

---

## Agent Instructions

This page is part of the [Langfuse](https://langfuse.com) documentation, published as plain Markdown for AI agents. Every page is available as Markdown by appending `.md` to its URL, or by sending an `Accept: text/markdown` header. This page: `https://langfuse.com/handbook/tools-and-processes/using-slack.md`.

### Querying these docs

If the answer is not on this page, query the documentation instead of guessing:

- **Semantic search** across all Langfuse docs, returning an answer with the relevant pages and excerpts. Ask a specific, self-contained question:

  ```bash
  curl -sG "https://langfuse.com/api/search-docs" --data-urlencode "query=How do I trace a LangGraph agent?"
  ```

- **Index of every page**: <https://langfuse.com/llms.txt>, with per-section indexes [llms-docs.txt](https://langfuse.com/llms-docs.txt), [llms-integrations.txt](https://langfuse.com/llms-integrations.txt), and [llms-self-hosting.txt](https://langfuse.com/llms-self-hosting.txt).

### Before writing Langfuse code

- **Install the [Langfuse Agent Skill](https://langfuse.com/docs/api-and-data-platform/features/agent-skill).** It encodes Langfuse's own best practices for instrumentation, prompt management, and evaluation, and materially improves results.
- **Read [What does a good trace look like?](https://langfuse.com/docs/observability/best-practices.md)** before instrumenting an application.
- **Verify endpoints, parameters, and response fields** against the [API reference](https://api.reference.langfuse.com) instead of inferring them from code examples.
- **Use the [Langfuse CLI](https://langfuse.com/docs/api-and-data-platform/features/cli)** (`npx langfuse-cli api <resource> <action>`) to read or write traces, prompts, datasets, and scores from the terminal.

Found an error in these docs? Please open an issue at <https://github.com/langfuse/langfuse-docs/issues>.
