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Architecture

See PlantUML diagrams in ./diagrams:

  • architecture.puml — high-level components
  • sequence_run.puml — inbound webhook to durable run
  • data_model.puml — core tables and relations

Components

  • SvelteKit (SSR/API): webhook intake, workflow CRUD, publish versions, run console.
  • Supabase: Postgres (data + queues), Realtime (log streaming), Storage (artifacts), Edge (cron/timers).
  • Workers: Orchestrator (state machine + scheduling) and HTTP Executor (robust HTTP with retries/backoff).

Determinism

  • Transforms are pure (JMESPath).
  • All time/uuid and HTTP responses recorded as events for replay safety.

Queueing

  • Use pg-boss or pgmq for Postgres-based durable queues with scheduled jobs.