From 138635ce59bc17c80c4248f1bb4241317ab074f3 Mon Sep 17 00:00:00 2001
From: backryun <bakryun0718@proton.me>
Date: Thu, 6 Aug 2026 10:29:37 +0900
Subject: [PATCH] fix(types): preserve SSE tool call function shape (#9090)
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Validated in local merge-train (devbox-vm-06-dev002) @ combined-tip (FAST gates: typecheck/complexity/cognitive/changelog/vitest — only pre-existing audit.test.ts flake). Evidence: /home/diegosouzapw/dev/proxys/OmniRoute/.claude/worktrees/merge-train-20260805-222248-suite.log
---
 open-sse/handlers/sseParser.ts | 2 --
 1 file changed, 2 deletions(-)

diff --git a/open-sse/handlers/sseParser.ts b/open-sse/handlers/sseParser.ts
index 3635f0149d..d75f3a72b8 100644
--- a/open-sse/handlers/sseParser.ts
+++ b/open-sse/handlers/sseParser.ts
@@ -244,10 +244,8 @@ export function parseSSEToOpenAIResponse(rawSSE, fallbackModel) {
             existing.index = tc.index;
           }
           if (tc?.function?.name && !existing.function?.name) {
-            existing.function = existing.function || {};
             existing.function.name = tc.function.name;
           }
-          existing.function = existing.function || {};
           existing.function.arguments = appendToolCallArgumentDelta(
             existing.function.arguments,
             deltaArgs