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Event and State Flow

Use this page when you need to understand how Helpifyr turns repo and runtime facts into readable events, projections, and readiness decisions.

When to use this page​

  • You are designing an integration or operator workflow.
  • You need to know where projections and readiness signals come from.
  • You need a human-readable companion to event-modeling reference surfaces.

Prerequisites​

  • You have read System Model.
  • You can access the event-modeling and platform projection surfaces.

Architecture / Flow​

flowchart TD
    A["Repo or runtime fact changes"] --> B["Contract or event publication"]
    B --> C["Projection and catalog update"]
    C --> D["Readiness or drift evaluation"]
    D --> E["Operator or automation decision"]
    E --> F["Verified downstream action or no-op"]

Step-by-step procedure​

1. Facts begin in repos or runtimes​

Examples:

  • a contract file changes in an owner repo
  • a runtime health signal changes
  • a deployment materialization differs from mainline truth

2. Fabric publishes the machine-readable view​

High-value surfaces include:

GET /api/v1/event-modeling/catalog
GET /api/v1/event-modeling/dependency-graph
GET /api/v1/contracts/registry
GET /api/v1/platform/projection-catalog

3. Projections summarize what operators need​

Operators rarely consume raw source files directly. Instead, projections and catalogs provide:

  • current known contracts
  • drift and mismatch signals
  • readiness posture by subsystem
  • explainable summaries for docs and dashboards

4. Decisions should follow verified state, not guesses​

Readiness and drift routes help determine whether the next step is:

  • observe only
  • escalate
  • recover
  • approve a guarded action

5. Keep human review in the loop where risk rises​

When a transition affects rollout, security, or residual risk, the safe model is verified readback plus explicit signoff.

Example readback sequence​

curl -s <fabric-base-url>/api/v1/event-modeling/catalog
curl -s <fabric-base-url>/api/v1/event-modeling/dependency-graph
curl -s <fabric-base-url>/api/v1/contracts/registry
curl -s <fabric-base-url>/api/v1/platform/projection-catalog
curl -s <fabric-base-url>/api/v1/observability/readiness
curl -s <fabric-base-url>/api/v1/signoff/readiness

Verification​

This page is being applied correctly when you can:

  1. point to the route that publishes the relevant event or projection family
  2. explain how an operator sees the result
  3. identify whether the next action is automatic, reviewed, or blocked

Common failure modes​

Reading only static docs without the live projection surfaces​

Problem:

  • the explanation is correct in theory but stale in practice.

Better path:

  • pair concept pages with live projection and readiness readback

Treating every event as an instruction to mutate state​

Problem:

  • observation and automation are conflated.

Better path:

  • classify whether the event should inform, verify, or trigger a guarded action

Source Truth​

Next paths​