> ## Documentation Index
> Fetch the complete documentation index at: https://docs.userecord.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Edge Cases

> Validation rules for human endorsement and assessment verification flows.

## Human endorsement rules

| Scenario                                                  | Allowed?  | Behavior                                            |
| --------------------------------------------------------- | --------- | --------------------------------------------------- |
| Same skill + same source + same endorsement type          | ❌ Blocked | System returns error: change source, type, or skill |
| Same skill + same source + different endorsement type     | ✅ Allowed | Each type is a separate trust signal                |
| Skill bundle with already-verified skill (same type)      | ❌ Blocked | That skill must be removed from the bundle          |
| Skill bundle with already-verified skill (different type) | ✅ Allowed | Cross-type bundling is valid                        |
| Duplicate skill in same source                            | ❌ Blocked | Source enforces unique skills only                  |
| More than 10 skills per source                            | ❌ Blocked | Max 10 unique skills per source                     |

## Assessment rules

| Scenario                                 | Allowed?  | Behavior                                      |
| ---------------------------------------- | --------- | --------------------------------------------- |
| Same skill + same source, already passed | ❌ Blocked | Cannot retake a passed assessment             |
| Assessment failed                        | ✅ Allowed | Retake available per retry policy             |
| Assessment paused                        | ✅ Allowed | Resume or retake available                    |
| Resend verification                      | ✅ Allowed | Resend endorsement email or reassessment link |