Initial public release

apps/extension/src/tools/errors.ts

@@ -0,0 +1,17 @@
+// Central RpcError builders with stable `data.reason` values for CLI
+// rendering. Extension handlers attach reasons here; human-facing copy
+// lives in bsk-cli `render_error.rs`.
+
+import type { ErrorCode, RpcError, RpcErrorData, RpcErrorReason } from "@/transport/types";
+
+export type { RpcErrorData, RpcErrorReason };
+
+export function rpcError(
+  code: ErrorCode,
+  reason: RpcErrorReason,
+  message: string,
+  extra?: Record<string, unknown>,
+): RpcError {
+  const data: RpcErrorData = { reason, ...extra };
+  return { code, message, data };
+}