fix(core): Remove json output schema form the next speaker check prompt (#5325)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

1 files changed, 1 insertions, 21 deletions

diff --git a/packages/core/src/utils/nextSpeakerChecker.ts b/packages/core/src/utils/nextSpeakerChecker.ts
index c75bf645..a0d735b0 100644
--- a/packages/core/src/utils/nextSpeakerChecker.ts
+++ b/packages/core/src/utils/nextSpeakerChecker.ts
@@ -14,27 +14,7 @@ const CHECK_PROMPT = `Analyze *only* the content and structure of your immediate
 **Decision Rules (apply in order):**
 1.  **Model Continues:** If your last response explicitly states an immediate next action *you* intend to take (e.g., "Next, I will...", "Now I'll process...", "Moving on to analyze...", indicates an intended tool call that didn't execute), OR if the response seems clearly incomplete (cut off mid-thought without a natural conclusion), then the **'model'** should speak next.
 2.  **Question to User:** If your last response ends with a direct question specifically addressed *to the user*, then the **'user'** should speak next.
-3.  **Waiting for User:** If your last response completed a thought, statement, or task *and* does not meet the criteria for Rule 1 (Model Continues) or Rule 2 (Question to User), it implies a pause expecting user input or reaction. In this case, the **'user'** should speak next.
-**Output Format:**
-Respond *only* in JSON format according to the following schema. Do not include any text outside the JSON structure.
-\`\`\`json
-{
-  "type": "object",
-  "properties": {
-    "reasoning": {
-        "type": "string",
-        "description": "Brief explanation justifying the 'next_speaker' choice based *strictly* on the applicable rule and the content/structure of the preceding turn."
-    },
-    "next_speaker": {
-      "type": "string",
-      "enum": ["user", "model"],
-      "description": "Who should speak next based *only* on the preceding turn and the decision rules."
-    }
-  },
-  "required": ["next_speaker", "reasoning"]
-}
-\`\`\`
-`;
+3.  **Waiting for User:** If your last response completed a thought, statement, or task *and* does not meet the criteria for Rule 1 (Model Continues) or Rule 2 (Question to User), it implies a pause expecting user input or reaction. In this case, the **'user'** should speak next.`;
 
 const RESPONSE_SCHEMA: SchemaUnion = {
   type: Type.OBJECT,