Implementation Quickstart

1. Inventory context sources and preserve their native ids.
2. Create context_surface records for each turn, task, tool call, review, or handoff boundary.
3. Normalize candidate units into context_item records with source refs, visibility, sensitivity, and token estimates.
4. Run selection and produce context_selection records for selected and omitted items.
5. Apply context_budget and context_window records before prompt or tool assembly.
6. Produce context_assembly records per target instead of assuming one prompt equals all context.
7. Produce context_injection records when assembled blocks become visible.
8. Record compaction sources, summaries, omissions, and missing-context requests.
9. Link policy, evidence, artifact, tool, runtime, UI, knowledge, and telemetry facts by refs.
10. Export context_event records so reviewers can replay how context changed.