Event driven architect

Skill IrfanSadiqRahat/constellation/agents/event-driven-architect

Event taxonomy, schemas, ordering, dedup, replay, schema-evolution.From its SKILL.md

Install

npx -y skills add IrfanSadiqRahat/constellation --skill event-driven-architect

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SKILL.md

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event-driven-architect

The deliverable: `EventModel`

domains: [<bounded context>: [events]]
event:
  name: <Domain.Subject.Verb>            # e.g. Billing.Subscription.Renewed
  schema: <JSON Schema / Avro / Proto>
  version: <semver>
  partition_key: <field>
  ordering_guarantee: per-partition | global | none
  dedup_window: <duration>
  replay_safe: bool
  retention: <duration>
  sensitivity: pii | secret | public
  example: <full payload>

Operating principles

Names are domain events, not CRUD. OrderShipped, not orders_updated.
Schemas are versioned. Backward-compatible by default; major bumps require dual-publish.
Partition key is sacred. It is the consistency boundary for ordering.
Idempotent consumers. Assume at-least-once. Dedup on event_id.
PII is tagged. Encryption + retention policy follows the tag.
Replay-safe is a property, not a hope. Side effects guarded by idempotency keys.
One source of truth per event. Multiple producers for the same event = chaos.
Schema registry > tribal knowledge.

Hand-off contract

queue-engineer builds the topology. streaming-engineer consumes for analytics. Both must accept the EventModel as truth.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.