From 9acb4c8fbc57741576159f5e39ea7ab3eb9f245f Mon Sep 17 00:00:00 2001
From: scoootscooob <zhentongfan@gmail.com>
Date: Tue, 24 Mar 2026 10:19:10 -0700
Subject: [PATCH] Providers: fix kimi-coding thinking normalization

---
 extensions/kimi-coding/index.ts          | 1 +
 src/agents/provider-capabilities.test.ts | 4 +++-
 src/agents/provider-capabilities.ts      | 3 +++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/extensions/kimi-coding/index.ts b/extensions/kimi-coding/index.ts
index f436325c446..b222ba3592a 100644
--- a/extensions/kimi-coding/index.ts
+++ b/extensions/kimi-coding/index.ts
@@ -77,6 +77,7 @@ export default definePluginEntry({
         },
       },
       capabilities: {
+        openAiPayloadNormalizationMode: "moonshot-thinking",
         preserveAnthropicThinkingSignatures: false,
       },
     });
diff --git a/src/agents/provider-capabilities.test.ts b/src/agents/provider-capabilities.test.ts
index c1aa496eeb4..4a5a2d1ed3c 100644
--- a/src/agents/provider-capabilities.test.ts
+++ b/src/agents/provider-capabilities.test.ts
@@ -32,6 +32,7 @@ const resolveProviderCapabilitiesWithPluginMock = vi.fn((params: { provider: str
       };
     case "kimi":
       return {
+        openAiPayloadNormalizationMode: "moonshot-thinking",
         preserveAnthropicThinkingSignatures: false,
       };
     default:
@@ -122,7 +123,7 @@ describe("resolveProviderCapabilities", () => {
     expect(resolveProviderCapabilities("kimi-code")).toEqual({
       anthropicToolSchemaMode: "native",
       anthropicToolChoiceMode: "native",
-      openAiPayloadNormalizationMode: "default",
+      openAiPayloadNormalizationMode: "moonshot-thinking",
       providerFamily: "default",
       preserveAnthropicThinkingSignatures: false,
       openAiCompatTurnValidation: true,
@@ -143,6 +144,7 @@ describe("resolveProviderCapabilities", () => {
 
   it("routes moonshot payload compatibility through the capability registry", () => {
     expect(usesMoonshotThinkingPayloadCompat("moonshot")).toBe(true);
+    expect(usesMoonshotThinkingPayloadCompat("kimi-coding")).toBe(true);
     expect(usesMoonshotThinkingPayloadCompat("openai")).toBe(false);
   });
 
diff --git a/src/agents/provider-capabilities.ts b/src/agents/provider-capabilities.ts
index 9842ac40290..adc83c5e2f4 100644
--- a/src/agents/provider-capabilities.ts
+++ b/src/agents/provider-capabilities.ts
@@ -67,6 +67,9 @@ const PLUGIN_CAPABILITIES_FALLBACKS: Record<string, Partial<ProviderCapabilities
   moonshot: {
     openAiPayloadNormalizationMode: "moonshot-thinking",
   },
+  "kimi-coding": {
+    openAiPayloadNormalizationMode: "moonshot-thinking",
+  },
   opencode: {
     openAiCompatTurnValidation: false,
     geminiThoughtSignatureSanitization: true,