| Method | Path | Summary | Auth |
|---|---|---|---|
| GET | /v1/escalate/line-groups | List the line groups the session scope may use for B/C (own and granted) with their tier | Session |
| POST | /v1/escalate/line-groups/grants | Grant a line group the session scope owns (or holds with may_regrant) to a downstream scope | Session |
| DELETE | /v1/escalate/line-groups/grants/{grant_id} | Revoke a grant and, transitively, what the grantee passed on of the same line group | Session |
| PUT | /v1/escalate/line-groups/{line_group_id}/tier | Mark one of the session scope's own line groups 普通 / 高防 / 无限防 | Session |
Contract file：api/control-escalate.openapi.yaml