This reminded me that I needed to settle on a good system-wide Snippets manager for MacOS.

Having waded through the morass of buggy (including MacOS’s built-in expansion, which seems to only work around 20% of the time) and subscription-only services many times in the past, I thought to give the open-source Espanso another go - having found it flaky and unwieldy in the past - but its last commit was many months ago and I simply could not get it to recognise Ventura permissions.

It was then that I remembered that the excellent Dash (https://kapeli.com/dash), for which I had already paid a very reasonable one-off fee, has a snippets manager. And it’s perfect.

How is this relevant? Is it an ad?

I have heard that shared conversations would also share the custom instructions. This is probably not ideal if people are putting personal information in them. Guessing they're plugging that hole.

wait are shared conversations re-run by the receiver? Otherwise it would be irrelevant whatever the secret prompt was

Yeah, mine are gone too.