From fd1d7bcfb2c1e40143b6bde31f0367dab672f1a0 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 20 Feb 2026 16:11:49 +0000
Subject: [PATCH] fix: surface actual error message when spec fetch fails

Co-authored-by: mrlubos <12529395+mrlubos@users.noreply.github.com>
---
 packages/openapi-ts/src/createClient.ts | 5 ++++-
 packages/shared/src/getSpec.ts          | 6 ++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/packages/openapi-ts/src/createClient.ts b/packages/openapi-ts/src/createClient.ts
index 7a948e2db..55d5b886e 100644
--- a/packages/openapi-ts/src/createClient.ts
+++ b/packages/openapi-ts/src/createClient.ts
@@ -66,7 +66,10 @@ export async function createClient({
     // if in watch mode, subsequent errors won't throw to gracefully handle
     // cases where server might be reloading
     if (error && !_watches) {
-      throw new Error(`Request failed with status ${response.status}: ${response.statusText}`);
+      const text = await response.text().catch(() => '');
+      throw new Error(
+        `Request failed with status ${response.status}: ${text || response.statusText}`,
+      );
     }
 
     return { arrayBuffer, resolvedInput };
diff --git a/packages/shared/src/getSpec.ts b/packages/shared/src/getSpec.ts
index cfee1542a..c9c251d9c 100644
--- a/packages/shared/src/getSpec.ts
+++ b/packages/shared/src/getSpec.ts
@@ -105,9 +105,10 @@ export async function getSpec({
 
         response = request.response;
       } catch (error) {
+        const message = error instanceof Error ? error.message : String(error);
         return {
           error: 'not-ok',
-          response: new Response(error instanceof Error ? error.message : String(error)),
+          response: new Response(message, { status: 500 }),
         };
       }
 
@@ -181,9 +182,10 @@ export async function getSpec({
 
       response = request.response;
     } catch (error) {
+      const message = error instanceof Error ? error.message : String(error);
       return {
         error: 'not-ok',
-        response: new Response(error instanceof Error ? error.message : String(error)),
+        response: new Response(message, { status: 500 }),
       };
     }
 
-- 
2.51.2