# Cost accountability rehearsal

Local synthetic extension for Foundations, Enterprise Architecture & Operations
and Service-AIOps Readiness. Three separate interactive ledgers demonstrate shared
allocation, historical short-lived resource attribution, and scoped AI unit cost.
No billing integration, live model, client importer or acceptance decision.

Build from repository root into a NEW directory:

    node plus-delivery/cost-rehearsal/build.mjs /absolute/new/review-directory
    node --test plus-delivery/cost-rehearsal/*.test.mjs

Open generated index.html directly on a laptop, or serve only the generated
folder on an approved LAN. No build/runtime dependency is required to open it.
Selectors and the accepted-task slider recompute only invented scenario arithmetic;
Return to baseline resets all five settings. No notes or personal data entry.
Refresh/close resets selections. Export current scenarios explicitly downloads
all three current views, exact cost ratio, assumptions and source identifiers.
There is no import, upload, storage or synchronization. Static links preserve
baseline, sources and manifest. Native print and Print all three views show all
three current scenario states and supporting sources, regardless of selected view.

The UI uses repository WWT tokens, shared consultative primitives and local embedded
WWT logo/font. Keyboard-native controls, visible focus and logical section order
remain. No color-only financial status, external automatic requests or analytics.

A build records SHA-256 for its exact source inputs and output members. Hashes are
consistency evidence, not authorship, signatures or review acceptance. Preserve the
matching source revision and files to reproduce historical output. Never edit
issued artifacts in place. JSON exports are scenario records, not financial records.

This prototype deliberately stops at fixed fictional evidence states. A later
tranche may establish versioned client dictionaries, mappings and reviewed evidence
contracts; that would need its own validation and data-admission decisions. Do not
insert this arithmetic into the deterministic Foundations engine or four report
contract by inference. Source applicability and unimplemented cases: SOURCES.md.