diff --git a/src/lib/ai/coach/__tests__/tools-loop-always-reasoning-gateway.test.ts b/src/lib/ai/coach/__tests__/tools-loop-always-reasoning-gateway.test.ts
index b5071cc0c..9b7a56d34 100644
--- a/src/lib/ai/coach/__tests__/tools-loop-always-reasoning-gateway.test.ts
+++ b/src/lib/ai/coach/__tests__/tools-loop-always-reasoning-gateway.test.ts
@@ -312,6 +312,13 @@ describe("#1276: a gateway model that always reasons", () => {
     },
   );
 
+  it("runs a tool call the server reports with finish_reason stop", async () => {
+    toolFinish = "stop";
+    const out = await turn("medium");
+    expect(executeCoachTool).toHaveBeenCalledTimes(1);
+    expect(out.result.content).toBe(ANSWER);
+  });
+
   it("fails as reasoning_only, never with the thought, when no answer ever comes", async () => {
     parser = "raw";
     reasoningWords = 20_000;
diff --git a/src/lib/ai/openai-client.ts b/src/lib/ai/openai-client.ts
index 4f94b2035..20dce6fea 100644
--- a/src/lib/ai/openai-client.ts
+++ b/src/lib/ai/openai-client.ts
@@ -554,7 +554,12 @@ export class OpenAIClient implements AIProvider {
       model: this.config.model,
       providerType: this.type,
       ...(toolCalls ? { toolCalls } : {}),
-      finishReason: mapFinishReason(choice?.finish_reason),
+      // #1276 — the tool calls themselves decide, as on the Anthropic and
+      // Codex wires: vLLM, Ollama and LiteLLM can put `stop` beside them,
+      // and the loop runs calls only on `tool_calls`.
+      finishReason: toolCalls
+        ? "tool_calls"
+        : mapFinishReason(choice?.finish_reason),
       ...(params.reasoning
         ? {
             reasoning: {