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@elftia/presentation-contracts

v1.0.0

Published

Versioned Semantic Slot, Deck IR, stable-ID, and minimal provenance-reference contracts shared by Elftia presentation producers.

Vulnerabilities

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Links

Maintainers

atelieraiatelierai

Keywords

Readme

@elftia/presentation-contracts

Public, producer-neutral contracts for Elftia presentation authoring and materialization. This package is the single source for Deck IR v1, Semantic Slot v1, stable presentation identities, minimal asset/provenance/decision references, and their conformance goldens.

The package does not emit PPTX, discover templates, or make license decisions. In the absence of a verified decisionRef, licenseStatus must remain not_evaluated.

Public seam

  • parseDeckIr, parseSemanticSlotSet, and parseTemplateContract validate untrusted data and reject unknown schema versions.
  • createStableDeckId, createStableSlideId, and createStableObjectId derive deterministic identities from semantic keys. Array indexes are rejected. User-created objects use createPersistentPresentationId; clones use clonePresentationId and retain clonedFrom.
  • migrateDeckIr and migrateSemanticSlotSet are explicit migration registries. Version 1 has only the identity migration; no unknown version is guessed or silently coerced.

Stable-ID algorithm

elftia.presentation-id.v1 frames the kind and every NFKC-normalized UTF-8 input as <byte-length>:<value>, joins the frames with |, computes SHA-256, and uses the first 128 bits as <kind>_<32 lowercase hex>. fixtures/v1/stable-id-vectors.json is normative for every language implementation.

Run npm run build --prefix packages/presentation-contracts to regenerate JSON Schemas, goldens, their byte-level SHA-256 manifest, and the publishable JS/type bundles.

The ownership/versioning decision is recorded in docs/design/presentation-contracts-owner-adr.md. From the Host repository, npm run check:presentation-contracts builds this package and verifies that the Design Studio TypeScript consumer and document-skills Python consumer interpret the same published artifacts, stable-ID vectors, Deck IR content hash, versions, and license status identically.