AINDF MCP server

@ai-native-design-framework/kit — the AINDF 0.2 kit

One dependency-free package for any design system that conforms to AINDF (conformsTo: "aindf@0.2"):

v0.2 additions to the public AINDF 0.1 contract graph: components (closed prop/slot/state contracts, templates), bindings (named data/action adapters implemented by the DS), screen (the only author artifact), receipt, config. MCP surface: AINDF 0.1 list-by-facet, slot-accepts, applicable-modifiers, get-preset plus get-ds, get-component, validate-screen, submit-screen and request-extension. The last two are offered only by an endpoint with staging (e.g. a hosted DS-MCP), need an author token and only stage unaccepted drafts; a read-only endpoint such as aindf mcp lists 7 tools, and an agent reports the need or the validated ScreenSpec to the user. Every tool carries a title and MCP hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint).

The kit contains no design system; its tests run against a small fixture design system kept in the repository. Limits: a builder receipt is not a signature; verified/accepted/released are never written by the kit; isolation of the author principal comes from deployment rights, not from this package.

Clean install: the repository's packages/aindf-kit/scripts/clean-install.mjs (source) packs this package, installs the tarball into an empty project and uses it only as a consumer would — the aindf bin (check, bundle, build, --check), the package exports and the MCP over stdio — each step with a negative. CI runs it on Node 20 and 22 and prints the tarball sha256 and kit version it checked.

Instance on Core (ds.core + ds.coreBundle + ds.coreBundleSha256, 0.2.0)

An Instance that extends a Core pins it in aindf.config.json three ways: ds.core (id@version), ds.coreBundle (path to that Core's AINDF bundle) and ds.coreBundleSha256 (the bundle's content hash; a self-consistent bundle with the same id@version but other contracts is refused). Generated screens import from one module only — the Instance's implementation.module — so a Core role a screen needs (Input, DialogPanel …) is provided by the Instance under the same contract name, implemented with the Instance's look. aindf check then holds that contract to the Core one: it must accept every prop value the Core contract accepts —

• every Core prop stays, with its type, required exactly where Core requires it;
• every enum value, allowed binding, rich-text mark and inline component stays (the Instance may add more);
• limits are no tighter: maxLength, minItems/maxItems, minimum/maximum; the link pattern is the Core one;
• every Core slot prop stays; props the Core role does not have are optional;
• the role keeps its place in a screen: a Core template stays a template, routeParams is not added, the taxonomy layer is the Core one, every Core slot exists with a cardinality no tighter; slots the Core role does not have are optional (min 0);
• every Core component exists in the Instance (contract and taxonomy), every Core binding by name; a params or data binding keeps its kind (a screen uses it as $.params / $.meta), an action binding may change kind (props name it).

What this guarantees: a screen written for Core — its components, props, where they stand, which slots they fill and how many children, its bindings — admits against the Instance unchanged, with one exception on purpose: what a slot accepts is judged by the Instance's own slotsets (their accepted components are Instance components), so a narrower accepts can still reject a Core screen with SLOT_REJECTS. That is not checked here.

coreConformance(config, components, core, { taxonomy, slots, bindings }): props, slotProps, template, routeParams and the Core component list are checked from components alone; the taxonomy layer and presence, slots and bindings only when that source is passed. checkDs passes all of them.

Codes: CORE_PIN (AINDF-DS-29) when the bundle is not the pinned one; CORE_CONFORMANCE (AINDF-DS-30) per narrowed prop, moved role, narrowed or new required slot, missing component or binding. Without ds.coreBundle nothing changes.