colinhacks
diff --git a/Collapse file
‎packages/zod/src/v4/classic/tests/number.test.ts‎
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‎packages/zod/src/v4/classic/tests/number.test.ts‎
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diff --git a/Collapse file
‎packages/zod/src/v4/core/checks.ts‎
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‎packages/zod/src/v4/core/checks.ts‎
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diff --git a/Collapse file
‎play.ts‎
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‎play.ts‎
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@@ -240,3 +240,8 @@ test("string format methods", () => {
   expect(a.parse(6)).toEqual(6);
   expect(() => a.parse(1)).toThrow();
 });
+
+test("error customization", () => {
+  z.number().gte(5, { error: (iss) => "Min: " + iss.minimum.valueOf() });
+  z.number().lte(5, { error: (iss) => "Max: " + iss.maximum.valueOf() });
+});
@@ -51,7 +51,7 @@ export interface $ZodCheckLessThanDef extends $ZodCheckDef {
 
 export interface $ZodCheckLessThanInternals<T extends util.Numeric = util.Numeric> extends $ZodCheckInternals<T> {
   def: $ZodCheckLessThanDef;
-  issc: errors.$ZodIssueTooSmall<T>;
+  issc: errors.$ZodIssueTooBig<T>;
 }
 
 const numericOriginMap = {
 
@@ -1,5 +1,4 @@
 import { z } from "zod/v4";
-import type { ZodArray, ZodDiscriminatedUnion } from "zod/v4";
 
 export const SegmentFilter = z.object({
   type: z.literal("segment"),
Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,7 @@ export interface $ZodCheckLessThanDef extends $ZodCheckDef {`
`51`	`51`
`52`	`52`	`export interface $ZodCheckLessThanInternals<T extends util.Numeric = util.Numeric> extends $ZodCheckInternals<T> {`
`53`	`53`	`def: $ZodCheckLessThanDef;`
`54`		`- issc: errors.$ZodIssueTooSmall<T>;`
	`54`	`+ issc: errors.$ZodIssueTooBig<T>;`
`55`	`55`	`}`
`56`	`56`
`57`	`57`	`const numericOriginMap = {`
Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,4 @@`
`1`	`1`	`import { z } from "zod/v4";`
`2`		`-import type { ZodArray, ZodDiscriminatedUnion } from "zod/v4";`
`3`	`2`
`4`	`3`	`export const SegmentFilter = z.object({`
`5`	`4`	`type: z.literal("segment"),`