From 243cad640c2399e48b7d65ee1428d1c18d7eee20 Mon Sep 17 00:00:00 2001
From: Huaaudio <jiahua.zhang@kuleuven.be>
Date: Mon, 23 Mar 2026 13:34:56 +0100
Subject: [PATCH] Revert "update voice system prompt override"

This reverts commit f237aba2a30eb77d50aec0450fed35fffb7ec70e.
---
 pkg/agent/loop.go   | 41 +++++++++++++----------------------------
 pkg/utils/string.go |  5 -----
 2 files changed, 13 insertions(+), 33 deletions(-)

diff --git a/pkg/agent/loop.go b/pkg/agent/loop.go
index 1b890b33b..82b20e3d1 100644
--- a/pkg/agent/loop.go
+++ b/pkg/agent/loop.go
@@ -79,7 +79,6 @@ type processOptions struct {
 	UserMessage             string              // User message content (may include prefix)
 	SystemPromptOverride    string              // Override the default system prompt (Used by SubTurns)
 	Media                   []string            // media:// refs from inbound message
-	IsVoice                 bool                // True if this message comes from an audio/voice call
 	InitialSteeringMessages []providers.Message // Steering messages from refactor/agent
 	DefaultResponse         string              // Response when LLM returns empty
 	EnableSummary           bool                // Whether to trigger summarization
@@ -1296,25 +1295,17 @@ func (al *AgentLoop) processMessage(ctx context.Context, msg bus.InboundMessage)
 			"route_channel": route.Channel,
 		})
 
-	isVoice := msg.Metadata != nil && msg.Metadata["is_voice"] == "true"
-	var systemPromptOverride string
-	if isVoice {
-		systemPromptOverride = "You are a helpful AI assistant. The user is speaking to you over voice chat. Reply in a concise, conversational, and natural oral style suitable for text-to-speech. Get straight to the point. Do not use Markdown, emojis, asterisks, or code blocks."
-	}
-
 	opts := processOptions{
-		SessionKey:           sessionKey,
-		Channel:              msg.Channel,
-		ChatID:               msg.ChatID,
-		SenderID:             msg.SenderID,
-		SenderDisplayName:    msg.Sender.DisplayName,
-		UserMessage:          msg.Content,
-		SystemPromptOverride: systemPromptOverride,
-		Media:                msg.Media,
-		IsVoice:              isVoice,
-		DefaultResponse:      defaultResponse,
-		EnableSummary:        true,
-		SendResponse:         false,
+		SessionKey:        sessionKey,
+		Channel:           msg.Channel,
+		ChatID:            msg.ChatID,
+		SenderID:          msg.SenderID,
+		SenderDisplayName: msg.Sender.DisplayName,
+		UserMessage:       msg.Content,
+		Media:             msg.Media,
+		DefaultResponse:   defaultResponse,
+		EnableSummary:     true,
+		SendResponse:      false,
 	}
 
 	// context-dependent commands check their own Runtime fields and report
@@ -1613,7 +1604,7 @@ func (al *AgentLoop) runTurn(ctx context.Context, ts *turnState) (turnResult, er
 			Role:    "system",
 			Content: ts.opts.SystemPromptOverride,
 		})
-        
+
 		if ts.opts.IsVoice && len(history) > 2 {
 			messages = append(messages, history[len(history)-2:]...)
 		} else {
@@ -1651,10 +1642,7 @@ func (al *AgentLoop) runTurn(ctx context.Context, ts *turnState) (turnResult, er
 	messages = resolveMediaRefs(messages, al.mediaStore, maxMediaSize)
 
 	if !ts.opts.NoHistory {
-		var toolDefs []providers.ToolDefinition
-		if !ts.opts.IsVoice {
-			toolDefs = ts.agent.Tools.ToProviderDefs()
-		}
+		toolDefs := ts.agent.Tools.ToProviderDefs()
 		if isOverContextBudget(ts.agent.ContextWindow, messages, toolDefs, ts.agent.MaxTokens) {
 			logger.WarnCF("agent", "Proactive compression: context budget exceeded before LLM call",
 				map[string]any{"session_key": ts.sessionKey})
@@ -1792,10 +1780,7 @@ turnLoop:
 			})
 
 		gracefulTerminal, _ := ts.gracefulInterruptRequested()
-		var providerToolDefs []providers.ToolDefinition
-		if !ts.opts.IsVoice {
-			providerToolDefs = ts.agent.Tools.ToProviderDefs()
-		}
+		providerToolDefs := ts.agent.Tools.ToProviderDefs()
 
 		// Native web search support (from HEAD)
 		_, hasWebSearch := ts.agent.Tools.Get("web_search")
diff --git a/pkg/utils/string.go b/pkg/utils/string.go
index 99337b557..dbaafdb7f 100644
--- a/pkg/utils/string.go
+++ b/pkg/utils/string.go
@@ -65,8 +65,3 @@ func DerefStr(s *string, fallback string) string {
 	}
 	return *s
 }
-
-// IsTruncationDisabled returns whether truncation is disabled globally
-func IsTruncationDisabled() bool {
-return disableTruncation.Load()
-}