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fix(sse): add Claude-to-Claude passthrough for anthropic-compatible providers

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When both source and target formats are Claude, skip all request
modification and forward the body untouched. This prevents
prepareClaudeRequest from corrupting valid Claude-native requests
destined for anthropic-compatible provider nodes.
This commit is contained in:
Prakersh Maheshwari
2026-03-17 02:03:45 +05:30
parent 9b255e643a
commit 6ff7b6570c
2 changed files with 8 additions and 1 deletions
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7
open-sse/handlers/chatCore.ts
View File

@@ -182,10 +182,17 @@ export async function handleChatCore({
// Translate request (pass reqLogger for intermediate logging)
let translatedBody = body;
const isClaudePassthrough = sourceFormat === FORMATS.CLAUDE && targetFormat === FORMATS.CLAUDE;
try {
if (nativeCodexPassthrough) {
translatedBody = { ...body, _nativeCodexPassthrough: true };
log?.debug?.("FORMAT", "native codex passthrough enabled");
} else if (isClaudePassthrough) {
// Claude-to-Claude passthrough: forward body completely untouched.
// No translation, no field stripping, no thinking normalization.
// We are just a gateway -- do not interfere with the request in any way.
translatedBody = body;
log?.debug?.("FORMAT", "claude->claude passthrough -- forwarding untouched");
} else {
translatedBody = { ...body };

2
open-sse/translator/index.ts
View File

@@ -131,7 +131,7 @@ export function translateRequest(
}
// Final step: prepare request for Claude format endpoints
if (targetFormat === FORMATS.CLAUDE) {
if (targetFormat === FORMATS.CLAUDE && sourceFormat !== FORMATS.CLAUDE) {
result = prepareClaudeRequest(result, provider);
}