What tools for a roadside SOS station?

Here’s the back story;
We live just off National cycle network route 1 and have club rides and sportives going past our place all the time. For the last few months I’ve left my old track pump outside chained to a tree with a free air sign. It’s been used a fair bit.

So…

I’m thinking of upping my game and putting out a few more bits and pieces.

What tools should I be leaving in the SOS box? Bearing in mind I need to be able to put them on a cable so that they don’t get inadvertently taken away by someone.

I think I’ll pop in a box of self adhesive patches as well, so which ones are good/cheap

Any input gladly excepted

Chaley

Park Tools Glueless Patches forever!

And then:
Pedros Multi Tool
Any adjustable wrench
Any needlenose pliers
Any chain tool

That's really nice of you to do.

Tyre levers, proper sized allen keys, pair of screwdrivers and potentially a chain tool as well?

Maybe some tyre levers, screwdriver(s), Allen keys, pliers, chaintool, and a dogbone wrench for older bikes with hexagonal nuts and bolts.

People going past are likely to already have minimally functional bikes, so stuff for making adjustments might be useful.
Adjustable spanner, Hex spanners for adjusting brakes / seatpost etc.

Good karma coming your way