Have you had success with non-technical people using git as their primary sharing source?
You can find a simple example at https://github.com/gitsense/gsc-rules-demos which shows how skills can be injected when needed. The example is:
"read the file at data/accounting/q1.ledger and explain what this ledger tracks"
If you know what the use needs to read or edit, you can inject knowledge/skills for the agent.
Do you just create a claude or codex plugin in git for them? Since they likely aren't working against any code repos?
For us it's mostly developers.
I also like having a system on top that manages our evals so I know when I can retire a skill that isn't pulling it's weight and I can see the usage stats to understand which skills are making a real difference.