From 18a3741fc29afccbae75dc81b3dd5e18ffaf5108 Mon Sep 17 00:00:00 2001
From: jay77721 <jay77721@users.noreply.github.com>
Date: Tue, 24 Mar 2026 21:40:33 +0800
Subject: [PATCH] feat(proxy): add model name prefix stripping option (#568)

Add stripModelPrefix boolean setting that, when enabled, strips
provider prefixes (e.g. openai/, anthropic/) from incoming model
names and re-resolves the bare model name using existing heuristics.

This allows tools to send prefixed model names while OmniRoute
handles provider routing at the proxy layer.

- Add stripModelPrefix to settings validation schema (Zod)
- Check setting in getModelInfo() after custom node matching fails
- Falls through to normal resolution on error or when disabled
- Backward compatible: opt-in, default behavior unchanged
---
 src/shared/validation/settingsSchemas.ts |  2 ++
 src/sse/services/model.ts                | 13 +++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/src/shared/validation/settingsSchemas.ts b/src/shared/validation/settingsSchemas.ts
index 980a9afc08..67cfccd766 100644
--- a/src/shared/validation/settingsSchemas.ts
+++ b/src/shared/validation/settingsSchemas.ts
@@ -42,6 +42,8 @@ export const updateSettingsSchema = z.object({
   a2aEnabled: z.boolean().optional(),
   // CLI Fingerprint compatibility (per-provider)
   cliCompatProviders: z.array(z.string().max(100)).optional(),
+  // Strip provider/model prefix at proxy layer (e.g. "openai/gpt-4" → "gpt-4")
+  stripModelPrefix: z.boolean().optional(),
   // Custom CLI agent definitions for ACP
   customAgents: z
     .array(
diff --git a/src/sse/services/model.ts b/src/sse/services/model.ts
index 8e0eeae635..2c5b91d483 100644
--- a/src/sse/services/model.ts
+++ b/src/sse/services/model.ts
@@ -1,5 +1,6 @@
 // Re-export from open-sse with localDb integration
 import { getModelAliases, getComboByName, getProviderNodes, getCustomModels } from "@/lib/localDb";
+import { getSettings } from "@/lib/localDb";
 import {
   parseModel,
   resolveModelAliasFromMap,
@@ -77,6 +78,18 @@ export async function getModelInfo(modelStr) {
         ...(apiFormat && { apiFormat }),
       };
     }
+
+    // stripModelPrefix: if enabled, strip provider prefix and re-resolve
+    // the bare model name using existing heuristics (claude-* → anthropic, etc.)
+    try {
+      const settings = await getSettings();
+      if (settings.stripModelPrefix === true) {
+        const strippedResult = await getModelInfoCore(parsed.model, getModelAliases);
+        return { ...strippedResult, extendedContext };
+      }
+    } catch {
+      // If settings read fails, fall through to normal resolution
+    }
   }
 
   if (!parsed.isAlias) {