saving

ts/packages/base/src/errors.ts

@@ -0,0 +1,29 @@
+/**
+ * Custom error types.
+ *
+ * Python reference: trustgraph-base/trustgraph/exceptions.py
+ */
+
+export class TooManyRequestsError extends Error {
+  constructor(message = "Rate limit exceeded") {
+    super(message);
+    this.name = "TooManyRequestsError";
+  }
+}
+
+export class LlmError extends Error {
+  constructor(
+    message: string,
+    public readonly errorType: string = "llm-error",
+  ) {
+    super(message);
+    this.name = "LlmError";
+  }
+}
+
+export class ParseError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = "ParseError";
+  }
+}