Revert error response stripping — keep full responses

Error status codes (401, 403, 404) are useful for agents to
debug failures. The agent should filter fields selectively,
not have data hidden from it.

Author: robinbraemer

src/spec.ts

@@ -128,16 +128,6 @@ export function processSpec(
     for (const method of HTTP_METHODS) {
       const op = pathItem[method];
       if (op) {
-        // Only keep success responses (2xx) — error schemas are redundant noise
-        const successResponses: Record<string, unknown> = {};
-        if (op.responses) {
-          for (const [status, resp] of Object.entries(op.responses)) {
-            if (status.startsWith("2") || status === "default") {
-              successResponses[status] = resp;
-            }
-          }
-        }
-
         paths[fullPath][method] = {
           summary: op.summary,
           description: op.description,
@@ -155,7 +145,7 @@ export function processSpec(
             maxRefDepth,
           ),
           responses: resolveRefs(
-            Object.keys(successResponses).length > 0 ? successResponses : op.responses,
+            op.responses,
             spec as Record<string, unknown>,
             undefined,
             maxRefDepth,