tyre holes from digging out glass/crap

This is going to sound weird but I swapped to slick tyres a few months ago and they are nice to ride and stuff but I have 2 little digs/nicks where bits of glass have been removed. On more textured tyres I guess it doesn't show as much.

They are ok like this I guess as the back has done 800+ miles since I noticed what I think was a chunk of bone and flicked it out.

Anyway is there some latex solution or funky rubber putty or something I can fill the hole with?

Sounds dumb but I would guess there is something like that for tubs maybe?

superglue

deflate tyre, find cut - fill with superglue (v small drop) - hold cut together by pressing sides of tyre - give it 30s or so to set.

Superglue.
Pump the tyre up to maximum, drip a bit of superglue in the cut, let the tyre down till the cuts close up, wait a bit, pump them up again, et voila, sealed cuts.

Does that method not risk gluing the inner tube to the tyre?

+1 Superglue.

Even if the superglue goes through (which I have never noticed) if there is any wax left on the inner tube it won't let the glue stick. I have repaired tyres like this for years, and never ever had a problem.

Completely unnecessary. Super gluing is waste of time...

Superglue dries hard, which isn't a problem for small nicks, but it sounds like this is more sizeable.

I use the stuff they repair wetsuits with, which remains flexible.

Wouldn't dried super glue make an annoying clicking sound as you rode??

Completely unnecessary. Super gluing is waste of time...

Really. I've never superglued a tyre in my puff and they've all lasted until they've been skidded through or their sidewalls have burst. I mean if the tyre is shredded right through, use a tyre boot, but if it's just a cut then there are about a thousand things I'd rather be doing with my time than gluing the nick together.

I deflate the tyres, pick out the glass, stones from the cuts, then fill the cuts with Shoe Goo. Pump up the tyres. All ready.
The Shoe Goo stays flexible and keeps the nicks sealed so more glass, stones don't find a home and eventually wear through.

If I am doing 70kph down a hill, I like to know what condition my tyres are in.