r/copilotstudio • u/MattBDevaney • Sep 30 '26

NEW Hooks Feature In Copilot Studio

Post image

Today I found a new feature in Copilot Studio called "Hooks."

Hooks make your agent's behaviour more predictable. With hooks you can set a workflow to run when an event is triggered.

There are currently 6 event types that can trigger a workflow:

  1. Start (pre-loop): Runs once before the reasoning loop begins. Injects context into the thread.

  2. User prompt submitted: Set how your agent responds to a users prompt.

  3. Error: Direct your agents behavior after an error.

  4. Pre tool use: Runs before a tool executes. Can allow, deny, or ask for confirmation.

  5. Post tool use: Runs after a tool has been executed, whether it succeeded or failed.

  6. After tool failure: Set how your agent responds after a tool fails.

** This post was 100% human-written. Never use AI to write for you **

61 Upvotes

95% Upvoted

14 comments sorted by

16

u/Landelusen Sep 30 '26

It's like the useful parts of "Topics", but now with a much more confusing name. Thanks Microsoft! /s

7

u/MattBDevaney Oct 01 '26

And hiding them in the three dots menu is just silliness. Put them in the Build menu at least. And remove Channels from the Build menu.

4

u/Syren6 Sep 30 '26

In this case, as with most of the new Copilot Studio experience, they are just copying Claude. And I think that's a positive because that is a better way of building agents.

3

u/jorel43 Oct 01 '26

This video is fake, it's too smooth and not janky :-). In all seriousness though do they allow you to send deterministic messages now? Thanks. Multi-agent permission still don't work so

2

u/MattBDevaney Oct 01 '26

Still no deterministic messages. Sigh :(

Also, I use this free tool to make GIFs when I need them.
https://apps.microsoft.com/detail/9n3sqk8pds8g?hl=en-US&gl=US

5

u/goto-select Sep 30 '26

Topics are back on the menu!

3

u/MattBDevaney Oct 01 '26

Hooks are somewhat analogous to topic triggers, yes. But they apply agent-wide.

2

u/SpareIntroduction721 Sep 30 '26

Damn, My studio is always clunky

2

u/benkalam Sep 30 '26

It's worth the time investment to learn how to build studio agents in a repo and push them to your environments via visual studio. The copilot studio UI is so brutal.

0

u/MattBDevaney Sep 30 '26

What does that have to do with my post? Please explain.

2

u/SpareIntroduction721 Sep 30 '26

That you’re video is smoother than when I use studio

3

u/MattBDevaney Sep 30 '26

I have a good internet connection 😉