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Initial import of AlgaPSA codebase from PSA server 
Excluded: .git, node_modules, secrets/, compose.env, assemblyscript tgz

Source: /opt/alga-psa on psa.joliet.tech
2026-06-22 16:12:17 -05:00

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Scratchpad — Workflow Payload Contract Inference

Rolling implementation notes (append; prune as needed).

2025-12-28

  • Decision: pinning is unrestricted (no extra governance permission).
  • Contract schemas: start with payload-only snapshots (no embedding event/vars).
  • Effective schema UI can be shown as JSON preview; no virtual schemaRef needed.
  • Custom events policy left flexible (may be removed); avoid extra work.

Implemented slice (mode + persistence + UI)

  • Added payload_schema_mode, pinned_payload_schema_ref, payload_schema_provenance to workflow_definitions.
    • Migration: server/migrations/20251228193000_add_workflow_payload_schema_mode.cjs
  • Extended workflow draft save/create APIs to persist mode + pinned ref:
    • server/src/lib/actions/workflow-runtime-v2-schemas.ts
    • server/src/lib/actions/workflow-runtime-v2-actions.ts
  • Updated designer to present “Workflow data contract” with a “Pin schema (advanced)” toggle and to persist mode.
    • ee/server/src/components/workflow-designer/WorkflowDesigner.tsx

Notes

  • Current runtime uses payload_schema_json snapshots stored on workflow_definition_versions on publish; execution does not depend on schema registry at runtime.
  • For now, inferred mode sets payloadSchemaRef to the trigger’s inferred schemaRef (from event catalog) and publishes a snapshot of that schema JSON for stability.

Follow-up (publish-time behavior + UX)

  • Publish action now re-infers definition.payloadSchemaRef in inferred mode from the trigger’s source schemaRef at publish time (override or event catalog).
  • Designer shows a warning if inferred contract differs from the published contract and offers “Pin to published contract”.

2025-12-28 (cont.)

  • Added deterministic payload schema snapshot hashing via stable JSON key ordering in validation/publish.
    • server/src/lib/actions/workflow-runtime-v2-actions.ts
  • Added in-memory caching for schema registry toJsonSchema() + listRefs() to reduce repeated Zod→JSON conversions in designer/run dialogs.
    • shared/workflow/runtime/registries/schemaRegistry.ts
  • Allowed opening the Run dialog for draft (unpublished) workflows for preview; running remains disabled until a version is published.
    • ee/server/src/components/workflow-designer/WorkflowDesigner.tsx
    • ee/server/src/components/workflow-designer/WorkflowRunDialog.tsx