The moment it happens

Set up a channel for each new project or client

A new project gets its own channel with the right people in it and a welcome post.

Runs: The moment it happens
Apps: Mattermost
AI: Not needed
Access: create channels, manage members

Send this to your assistant

Create a ClickRuntime automation: when I post a project name and a list of usernames to this link, create a Mattermost channel named after the project, add those people, and post a welcome message with the kickoff date.

Paste it into your assistant. It tells you what it will send or change before it runs live.

Add to ChatGPT Add to Claude

First time? Adding ClickRuntime to your assistant takes about two minutes.

Why use it

Why teams use this automation

When a company signs a new client or starts a project, the same ritual follows. Someone creates a Mattermost channel, remembers to pick a naming convention, looks up the usernames of five colleagues, invites them one by one and writes an introduction message. If the person who normally does this is on holiday, the channel appears two days late, and early questions end up in direct messages that new joiners cannot see.

When your system signals a new project or client, for example when a deal closes or a project is created, ClickRuntime receives the event and creates the Mattermost channel, adds each listed member by username and posts a welcome message. It runs the moment the event arrives.

It is useful for agencies, consultancies and internal teams that start many projects over a year.

What you get out of it

The channel exists on day one
Project communication starts the moment a deal is won or a project is approved. A ready channel with the right people avoids a week of scattered email and direct messages.
Consistent names make channels findable
Because the channel is created from a pattern, every client channel is named in the same way. Searching for it months later is easy, which saves time across the whole company.
Nobody is forgotten
Adding members from a defined list means the designer or account manager does not discover on day four that they were never invited. Everyone who needs context gets it from the first message.
A welcome message sets expectations
The first post can explain the purpose, point to key documents and name the lead. New members read it on joining, which cuts down on the same three questions being asked again.
Admin time goes back to real work
Whoever owned the manual setup no longer spends ten minutes per project. Across thirty projects a year, that becomes hours spent on work that is not channel administration. That time compounds across every project.

How it works

What happens, step by step

When a new project or client is sent to your ClickRuntime link, with its name and the people who should be involved, the automation runs straight away.
It creates a Mattermost channel named after the project.
It adds each listed person to the channel.
It posts a welcome message in the channel with the kickoff date.

Before it runs live

Connect Mattermost
Paste your automation's link into the other app's webhook settings

What you get

RunsThe moment it happens

Set up a channel for each new project or clientjust nowSucceeded

Mattermost · northwind-redesignWelcome to Northwind Redesign! Kickoff is on 2026-11-03.

Build your own

Need it to work differently?

This template is a starting point. Copy the prompt and change it, or describe a different automation from scratch, with your own conditions, more apps or an AI step. Your assistant writes it, tests it and runs it on ClickRuntime.

Your own rules
Conditions, thresholds, filters and exceptions, written the way you'd explain them to a colleague.
Any number of apps
One automation can read from one app and update several others. Over 248 apps are ready, and anything with an API works too.
AI where it helps
Summaries, classification, extraction and drafts use ClickRuntime's built-in AI, with no extra key.
On a schedule or on each event
Runs as often as every 5 minutes, or the moment an app sends an event, and keeps track of what it already handled.

Changes you can ask for

Act only on the items that match your own rules, and skip the rest
Add an AI step, for example to summarize, sort or draft a reply
Add another app, for example also send it to Slack
Combine it with other Mattermost steps into one automation

Under the hood

The code that runs this automation

This is the Python script that runs each time the automation starts. Your AI assistant writes it for you when you send the prompt, and you allow each step in your assistant. To change how the automation works, describe the change to your assistant and it updates the script for you. For every function it can use, see the script reference.

create_a_channel_and_add_people.pyexample

import re
from clickruntime import on_event, credentials, http

BASE = "https://chat.acme.com/api/v4"
TEAM_ID = "teamid123"

@on_event
def handle(event):
    body = event.json
    h = {"Authorization": f"Bearer {credentials.secret('MATTERMOST_TOKEN')}"}
    name = re.sub(r"[^a-z0-9-]+", "-", body["project"].lower()).strip("-")
    channel = http.post(f"{BASE}/channels", headers=h, json={
        "team_id": TEAM_ID, "name": name, "display_name": body["project"], "type": "O"}).json()
    users = http.post(f"{BASE}/users/usernames", json=body["usernames"], headers=h).json()
    for u in users:
        http.post(f"{BASE}/channels/{channel['id']}/members", json={"user_id": u["id"]}, headers=h).raise_for_status()
    http.post(f"{BASE}/posts", headers=h, json={"channel_id": channel["id"],
              "message": f"Welcome to {body['project']}! Kickoff is on {body.get('kickoff', 'TBD')}."})
    return {"channel": name, "members": len(users)}

FAQ

Common questions

How does it know who to add?

The event that starts the run includes a list of usernames, or the automation holds a default team list for that type of project. Each person is added by their Mattermost username. Usernames must match Mattermost accounts.

What if a channel with that name already exists?

Mattermost does not allow two channels with the same name in a team, so the run reports an error in the ClickRuntime dashboard instead of creating a duplicate. You can then pick a different name or choose to reuse the existing channel.

Can it create private channels for sensitive clients?

Yes. Mattermost supports both public and private channels, and you can choose which type to create. A private channel is a good choice for client work, because only the people added can see it. Team admins can still manage membership afterwards.

What permissions does it need?

create channels, manage members. Nothing else in your accounts is used.

Does it need AI?

No. It runs without AI, so it doesn't use your plan's AI allowance.

How many runs does it use?

One run for each event the app sends.

Can I change how it works?

Yes. Describe the change to your AI assistant, for example a different schedule, channel or filter. It updates the automation, tests it and tells you what changed.

The moment it happens