The scenario is like this:
my supplier has a account of jira, I hope he could only obtain access like this:
- before any task assigned to him, or inviting him to watch, he could only see the project title - no other information
- if a task is assigned to him, or inviting him to watch by other people, then he could:
- edit the task content, comment, change the status
- invite other people to watch
I didn't see any option in Permission Scheme capable of doing that.