hermes - 💡(How to fix) Fix opencode-go: Kimi K2 models fail with HTTP 400 "cannot specify both 'thinking' and 'reasoning_effort

HTTP 400: Error from provider: cannot specify both 'thinking' and 'reasoning_effort'

         if _is_kimi_k2_model(model):
-            # Kimi K2 on OpenCode Go uses Moonshot's native wire shape:
-            # extra_body.thinking (binary toggle) + top-level reasoning_effort
-            # (low|medium|high). Mirrors the KimiProfile (api.moonshot.ai/v1).
+            # Kimi K2 on OpenCode Go uses Moonshot's native wire shape.
+            # WARNING: Moonshot rejects requests that include BOTH
+            # extra_body.thinking AND top-level reasoning_effort.
             if not isinstance(reasoning_config, dict):
                 return extra_body, top_level

             enabled = reasoning_config.get("enabled") is not False
-            extra_body["thinking"] = {"type": "enabled" if enabled else "disabled"}
-
             if not enabled:
+                extra_body["thinking"] = {"type": "disabled"}
                 return extra_body, top_level

             effort = (reasoning_config.get("effort") or "").strip().lower()
             if effort in {"xhigh", "max"}:
                 top_level["reasoning_effort"] = "high"
             elif effort in {"low", "medium", "high"}:
                 top_level["reasoning_effort"] = effort
+
+            # Only send thinking toggle when NOT also sending reasoning_effort
+            if not top_level.get("reasoning_effort"):
+                extra_body["thinking"] = {"type": "enabled"}
+
             return extra_body, top_level