From 8771317a1e3ed9e87399ce4e94a8fee9f6adf228 Mon Sep 17 00:00:00 2001
From: Soulter <37870767+Soulter@users.noreply.github.com>
Date: Fri, 16 Jan 2026 16:46:39 +0800
Subject: [PATCH] perf: chatui default persona (#4502)

---
 .../astrbot/process_llm_request.py             | 18 ++++++++++++++++--
 astrbot/core/pipeline/process_stage/utils.py   | 15 +++++++++++++++
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/astrbot/builtin_stars/astrbot/process_llm_request.py b/astrbot/builtin_stars/astrbot/process_llm_request.py
index 28d0a34f4..4e8c562cd 100644
--- a/astrbot/builtin_stars/astrbot/process_llm_request.py
+++ b/astrbot/builtin_stars/astrbot/process_llm_request.py
@@ -8,6 +8,9 @@ from astrbot.api.event import AstrMessageEvent
 from astrbot.api.message_components import Image, Reply
 from astrbot.api.provider import Provider, ProviderRequest
 from astrbot.core.agent.message import TextPart
+from astrbot.core.pipeline.process_stage.utils import (
+    CHATUI_SPECIAL_DEFAULT_PERSONA_PROMPT,
+)
 from astrbot.core.provider.func_tool_manager import ToolSet
 
 
@@ -22,7 +25,9 @@ class ProcessLLMRequest:
         else:
             logger.info(f"Timezone set to: {self.timezone}")
 
-    async def _ensure_persona(self, req: ProviderRequest, cfg: dict, umo: str):
+    async def _ensure_persona(
+        self, req: ProviderRequest, cfg: dict, umo: str, platform_type: str
+    ):
         """确保用户人格已加载"""
         if not req.conversation:
             return
@@ -42,6 +47,12 @@ class ProcessLLMRequest:
                 if default_persona:
                     persona_id = default_persona["name"]
 
+                    # ChatUI special default persona
+                    if platform_type == "webchat":
+                        # non-existent persona_id to let following codes not working
+                        persona_id = "_chatui_default_"
+                        req.system_prompt += CHATUI_SPECIAL_DEFAULT_PERSONA_PROMPT
+
         persona = next(
             builtins.filter(
                 lambda persona: persona["name"] == persona_id,
@@ -171,7 +182,10 @@ class ProcessLLMRequest:
         img_cap_prov_id: str = cfg.get("default_image_caption_provider_id") or ""
         if req.conversation:
             # inject persona for this request
-            await self._ensure_persona(req, cfg, event.unified_msg_origin)
+            platform_type = event.get_platform_name()
+            await self._ensure_persona(
+                req, cfg, event.unified_msg_origin, platform_type
+            )
 
             # image caption
             if img_cap_prov_id and req.image_urls:
diff --git a/astrbot/core/pipeline/process_stage/utils.py b/astrbot/core/pipeline/process_stage/utils.py
index 4b9507267..6df2bce55 100644
--- a/astrbot/core/pipeline/process_stage/utils.py
+++ b/astrbot/core/pipeline/process_stage/utils.py
@@ -44,6 +44,21 @@ TOOL_CALL_PROMPT = (
     "After the tool call is completed, you must briefly summarize the results returned by the tool for the user."
 )
 
+CHATUI_SPECIAL_DEFAULT_PERSONA_PROMPT = (
+    "You are a calm, patient friend with a systems-oriented way of thinking.\n"
+    "When someone expresses strong emotional needs, you begin by offering a concise, grounding response "
+    "that acknowledges the weight of what they are experiencing, removes self-blame, and reassures them "
+    "that their feelings are valid and understandable. This opening serves to create safety and shared "
+    "emotional footing before any deeper analysis begins.\n"
+    "You then focus on articulating the emotions, tensions, and unspoken conflicts beneath the surface—"
+    "helping name what the person may feel but has not yet fully put into words, and sharing the emotional "
+    "load so they do not feel alone carrying it. Only after this emotional clarity is established do you "
+    "move toward structure, insight, or guidance.\n"
+    "You listen more than you speak, respect uncertainty, avoid forcing quick conclusions or grand narratives, "
+    "and prefer clear, restrained language over unnecessary emotional embellishment. At your core, you value "
+    "empathy, clarity, autonomy, and meaning, favoring steady, sustainable progress over judgment or dramatic leaps."
+)
+
 CHATUI_EXTRA_PROMPT = (
     'When you answered, you need to add a follow up question / summarization but do not add "Follow up" words. '
     "Such as, user asked you to generate codes, you can add: Do you need me to run these codes for you?"