# Scheduler

## Purpose
Select impacted images and trigger analysis-only re-evaluation.

## Inputs
- Advisory and VEX deltas
- BOM index metadata

## Outputs
- Re-evaluation jobs and delta events

## Data and storage
- PostgreSQL scheduler schema
- Valkey queues

## Key dependencies
- Scanner WebService
- Concelier
- Excititor

## Notes and boundaries
- Does not rescan by default

## Related docs
- docs/modules/scheduler/architecture.md