JobCache App
Observer-facing sessions, views, grants, snapshots, and product delivery.
JobCache AppBlueprint · domain
JobCache Core and privacy seams
CrateDB owns public corpus truth while JobCache App and CareerVector retain their unrelated local identities.
Cell 3.2 · runtime · data · privacy · evidence- JobCache App to Observer privacy seam: reduced request
- Observer privacy seam to Protected Core API: authenticated
- Protected Core API to and from CrateDB: search / lifecycle
- CrateDB to and from Corpus pipeline: reconcile + project
- CrateDB to Workspace privacy seam: public projection
- Workspace privacy seam to CareerVector: workspace-local delivery
Observer privacy seam
session_id stays in App; only declared reductions cross.
JobCache App/CoreProtected Core API
Authenticated search, deposit, delivery, and lifecycle boundary.
JobCache CoreCrateDB
Roles, ads, facts, evidence, vectors, lineage, tasks, and outcomes.
Open layer ↘Corpus pipeline
Reconcile ad→role, retain disagreement, age evidence, and publish projections.
JobCache CoreWorkspace privacy seam
workspace_id, documents, prompts, and activity stay in CareerVector.
CareerVector/CoreCareerVector
Private workspace receives public projections and keeps private truth locally.
CareerVector01 · service · as-built JobCache App Observer-facing sessions, views, grants, snapshots, and product delivery.
JobCache App02 · boundary · as-built Observer privacy seam session_id stays in App; only declared reductions cross.
JobCache App/Core03 · service · as-built Protected Core API Authenticated search, deposit, delivery, and lifecycle boundary.
JobCache Core- 04 · store · as-built CrateDB
Roles, ads, facts, evidence, vectors, lineage, tasks, and outcomes.
Open deeper layer ↘ 05 · process · mixed Corpus pipeline Reconcile ad→role, retain disagreement, age evidence, and publish projections.
JobCache Core06 · boundary · as-built Workspace privacy seam workspace_id, documents, prompts, and activity stay in CareerVector.
CareerVector/Core07 · service · mixed CareerVector Private workspace receives public projections and keeps private truth locally.
CareerVector
Flows
- JobCache App → Observer privacy seam reduced request
- Observer privacy seam → Protected Core API authenticated
- Protected Core API ↔ CrateDB search / lifecycle
- CrateDB ↔ Corpus pipeline reconcile + project
- CrateDB → Workspace privacy seam public projection
- Workspace privacy seam → CareerVector workspace-local delivery
Internals
Purpose
Hold and serve the current public model of the job market. Internals is a blueprint label
for JobCache Core and its immediate processing boundary; it is not a third product.
Canonical model
role → ad → workspace job
Core owns the role and ad rungs. CareerVector owns private workspace job state. Role
facts aggregate evidence across ads without erasing disagreement or analyzing identical text
twice.
CrateDB authority
- Canonical current roles and ads.
- Structured facts with evidence and temporal validity.
- Embeddings and search projections.
- Role/ad reconciliation and revision lineage.
- Shared reusable enrichment results and public aggregate outputs.
Raw observations remain in object storage. Unfinished pipeline work remains in rebuildable operational state. Product-local session and workspace state remains in product D1/Yjs.
Invariants
- CrateDB is the only canonical public-corpus database.
- Publication is idempotent, revisioned, and traceable to immutable observations.
- A role aggregate never hides conflicting ad evidence.
- Product-local identifiers do not enter Core.
- One-node CrateDB is an explicit resource constraint, not an excuse for a second truth store.
- Customer reads take precedence over asynchronous publication pressure.
Completion evidence
Schema and query budgets for 100,000 ads; temporal role/ad reconstruction; vector and hybrid search benchmarks; publication atomicity; lineage queries; and privacy-boundary tests.