RFC: Common jido_cluster usage scenarios (ideas)

[mikehostetler]

RFC: Common jido_cluster Usage Scenarios (Ideas for Discussion)

This issue is a discussion starter, not a committed roadmap.

The goal is to align on where jido_cluster provides the most practical value, and which scenarios we should prioritize for docs, demos, and API polish.

Context

jido_cluster is strongest when users need:

• keyed singleton behavior
• cross-node routing by key
• recovery after node/region loss
• deterministic and testable distributed behavior

Scenario ideas

1. Tenant-scoped workflow runners

   • One logical agent per {tenant, workflow} for deterministic orchestration.

2. Region-resilient control planes

   • Keep control-loop agents available during regional outages.

3. Webhook dedupe + retry coordinators

   • One agent per {provider, external_id} to avoid duplicate side effects.

4. Order/payment saga coordinators

   • Serialize state transitions per order/intent across a cluster.

5. IoT/device digital twins

   • One agent per device for command/state sequencing.

6. Session/room coordinators (chat/collab)

   • One agent per room/session with consistent ownership.

7. Global quota/rate-budget guardians

   • One agent per {customer, budget_window} for consistent enforcement.

8. Batch job controllers

   • One agent per job key for lifecycle management and recovery.

9. Cache rebuild coordinators

   • One agent per shard/segment to prevent thundering herd rebuilds.

10. External system sync managers

    • One agent per integration target with backoff/checkpoint control.

11. Multi-tenant AI runtime coordinators

    • One agent per user/task for deterministic tool-call orchestration.

12. Operational lock agents with behavior

    • Lock semantics + retries/timeouts/telemetry in one keyed process.

Suggested follow-ups (ideas)

1. Pick top 3 scenarios based on user pain and frequency.
2. Add one production-oriented reference architecture per top scenario.
3. Add one failure drill per top scenario (node down / region down / restart).
4. Define scenario-level SLOs (recovery time, migration success rate, error budget).

Request for feedback

• Which 2-3 scenarios should become first-class examples?
• Which storage backends should each scenario recommend by default?
• What proof points are needed to make the runtime stability claim concrete?