git.stella-ops.org/docs/modules/scheduler/README.md

StellaOps Scheduler

Scheduler detects advisory/VEX deltas, computes impact windows, and orchestrates re-evaluations across Scanner and Policy Engine.

Responsibilities

• Maintain impact cursors and queues for re-scan/re-evaluate jobs.
• Expose APIs for policy-triggered rechecks and runtime hooks.
• Emit DSSE-backed completion events for downstream consumers (UI, Notify).
• Provide SLA-aware retry logic with deterministic evaluation windows.

Key components

• StellaOps.Scheduler.WebService control plane.
• StellaOps.Scheduler.Worker job executor.
• Shared libraries under StellaOps.Scheduler.*.

Integrations & dependencies

• MongoDB for impact models.
• Redis/NATS for queueing.
• Policy Engine, Scanner, Notify.

Operational notes

• Monitoring assets in ./operations/worker-grafana-dashboard.json & worker-prometheus-rules.yaml.
• Operational runbook ./operations/worker.md.

Related resources

• ./operations/worker.md
• ./operations/worker-grafana-dashboard.json
• ./operations/worker-prometheus-rules.yaml

Backlog references

• SCHED-MODELS-20-001 (policy run DTOs) and related tasks in ../../TASKS.md.
• Scheduler observability follow-ups in src/Scheduler/**/TASKS.md.

Epic alignment

• Epic 2 – Policy Engine & Editor: orchestrate incremental re-evaluation and simulation runs when raw facts or policies change.
• Epic 6 – Vulnerability Explorer: feed triage workflows with up-to-date job status, explain traces, and ledger hooks.
• Epic 9 – Orchestrator Dashboard: expose job telemetry, throttling, and replay controls through orchestration dashboards.