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ts/packages/base/src/schema/primitives.ts

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+/**
+ * Core data types mirroring the Python schema primitives.
+ *
+ * Python reference: trustgraph-base/trustgraph/schema/core/primitives.py
+ */
+
+export interface TgError {
+  type: string;
+  message: string;
+}
+
+// RDF Term types — discriminated union
+export type TermType = "IRI" | "BLANK" | "LITERAL" | "TRIPLE";
+
+export interface IriTerm {
+  type: "IRI";
+  iri: string;
+}
+
+export interface BlankTerm {
+  type: "BLANK";
+  id: string;
+}
+
+export interface LiteralTerm {
+  type: "LITERAL";
+  value: string;
+  datatype?: string;
+  language?: string;
+}
+
+export interface TripleTerm {
+  type: "TRIPLE";
+  triple: Triple;
+}
+
+export type Term = IriTerm | BlankTerm | LiteralTerm | TripleTerm;
+
+export interface Triple {
+  s: Term;
+  p: Term;
+  o: Term;
+  g?: Term; // Named graph (optional quad)
+}
+
+export interface Field {
+  name: string;
+  type: string;
+  description?: string;
+}
+
+export interface RowSchema {
+  name: string;
+  description?: string;
+  fields: Field[];
+}
+
+// LLM-related types
+export interface LlmResult {
+  text: string;
+  inToken: number;
+  outToken: number;
+  model: string;
+}
+
+export interface LlmChunk {
+  text: string;
+  inToken: number | null;
+  outToken: number | null;
+  model: string;
+  isFinal: boolean;
+}