feat(ai): Implement configurable base system prompt and expose in UI

src/ai_client.py

@@ -143,7 +143,8 @@ _SYSTEM_PROMPT: str = (
 )
 
 _custom_system_prompt: str = ""
-_global_tool_instructions: str = ""
+_base_system_prompt_override: str = ""
+_use_default_base_system_prompt: bool = True
 _project_context_marker: str = ""
 
 def set_custom_system_prompt(prompt: str) -> None:
@@ -151,9 +152,13 @@ def set_custom_system_prompt(prompt: str) -> None:
  global _custom_system_prompt
  _custom_system_prompt = prompt
 
-def set_global_tool_instructions(instructions: str) -> None:
- global _global_tool_instructions
- _global_tool_instructions = instructions
+def set_base_system_prompt(prompt: str) -> None:
+ global _base_system_prompt_override
+ _base_system_prompt_override = prompt
+
+def set_use_default_base_prompt(use_default: bool) -> None:
+ global _use_default_base_system_prompt
+ _use_default_base_system_prompt = use_default
 
 def set_project_context_marker(marker: str) -> None:
  global _project_context_marker
@@ -165,7 +170,10 @@ def _get_context_marker() -> str:
 def _get_combined_system_prompt(preset: Optional[ToolPreset] = None, bias: Optional[BiasProfile] = None) -> str:
  if preset is None: preset = _active_tool_preset
  if bias is None: bias = _active_bias_profile
- base = _global_tool_instructions if _global_tool_instructions.strip() else _SYSTEM_PROMPT
+ if _use_default_base_system_prompt:
+  base = _SYSTEM_PROMPT
+ else:
+  base = _base_system_prompt_override
  if _custom_system_prompt.strip():
   base = f"{base}\n\n[USER SYSTEM PROMPT]\n{_custom_system_prompt}"
  if preset and bias:

src/app_controller.py

@@ -233,7 +233,8 @@ class AppController:
   self.ui_auto_add_history: bool = False
   self.ui_active_tool_preset: str | None = None
   self.ui_global_system_prompt: str = ""
-  self.ui_global_tool_instructions: str = ""
+  self.ui_base_system_prompt: str = ""
+  self.ui_use_default_base_prompt: bool = True
   self.ui_project_context_marker: str = ""
   self.ui_agent_tools: Dict[str, bool] = {}
   self.available_models: List[str] = []
@@ -355,6 +356,8 @@ class AppController:
    'manual_approve': 'ui_manual_approve',
    'global_system_prompt': 'ui_global_system_prompt',
    'project_system_prompt': 'ui_project_system_prompt',
+   'base_system_prompt': 'ui_base_system_prompt',
+   'use_default_base_prompt': 'ui_use_default_base_prompt',
    'global_preset_name': 'ui_global_preset_name',
    'project_preset_name': 'ui_project_preset_name',
    'ui_active_tool_preset': 'ui_active_tool_preset',
@@ -409,6 +412,8 @@ class AppController:
    'bg_shader_enabled': 'bg_shader_enabled',
    'global_system_prompt': 'ui_global_system_prompt',
    'project_system_prompt': 'ui_project_system_prompt',
+   'base_system_prompt': 'ui_base_system_prompt',
+   'use_default_base_prompt': 'ui_use_default_base_prompt',
    'global_preset_name': 'ui_global_preset_name',
    'project_preset_name': 'ui_project_preset_name',
    'ui_active_tool_preset': 'ui_active_tool_preset',
@@ -915,7 +920,8 @@ class AppController:
   self.ui_word_wrap = proj_meta.get("word_wrap", True)
   self.ui_auto_add_history = disc_sec.get("auto_add", False)
   self.ui_global_system_prompt = self.config.get("ai", {}).get("system_prompt", "")
-  self.ui_global_tool_instructions = self.config.get("ai", {}).get("tool_instructions", "")
+  self.ui_base_system_prompt = self.config.get("ai", {}).get("base_system_prompt", "")
+  self.ui_use_default_base_prompt = self.config.get("ai", {}).get("use_default_base_prompt", True)
   self.ui_project_context_marker = proj_meta.get("context_marker", "")
   
   self.preset_manager = presets.PresetManager(Path(self.active_project_path).parent if self.active_project_path else None)
@@ -1408,7 +1414,8 @@ class AppController:
   self.ai_response = ""
   csp = filter(bool, [self.ui_global_system_prompt.strip(), self.ui_project_system_prompt.strip()])
   ai_client.set_custom_system_prompt("\n\n".join(csp))
-  ai_client.set_global_tool_instructions(self.ui_global_tool_instructions)
+  ai_client.set_base_system_prompt(self.ui_base_system_prompt)
+  ai_client.set_use_default_base_prompt(self.ui_use_default_base_prompt)
   ai_client.set_project_context_marker(self.ui_project_context_marker)
   ai_client.set_model_params(self.temperature, self.max_tokens, self.history_trunc_limit, self.top_p)
   ai_client.set_agent_tools(self.ui_agent_tools)  # Force update adapter path right before send to bypass potential duplication issues
@@ -1828,7 +1835,8 @@ class AppController:
     base_dir = self.active_project_root
     csp = filter(bool, [self.ui_global_system_prompt.strip(), self.ui_project_system_prompt.strip()])
     ai_client.set_custom_system_prompt("\n\n".join(csp))
-    ai_client.set_global_tool_instructions(self.ui_global_tool_instructions)
+    ai_client.set_base_system_prompt(self.ui_base_system_prompt)
+    ai_client.set_use_default_base_prompt(self.ui_use_default_base_prompt)
     ai_client.set_project_context_marker(self.ui_project_context_marker)
     temp = req.temperature if req.temperature is not None else self.temperature
     top_p = req.top_p if req.top_p is not None else self.top_p
@@ -2496,7 +2504,8 @@ class AppController:
    "active_preset": self.ui_global_preset_name,
   }
   self.config["ai"]["system_prompt"] = self.ui_global_system_prompt
-  self.config["ai"]["tool_instructions"] = self.ui_global_tool_instructions
+  self.config["ai"]["base_system_prompt"] = self.ui_base_system_prompt
+  self.config["ai"]["use_default_base_prompt"] = self.ui_use_default_base_prompt
   self.config["projects"] = {"paths": self.project_paths, "active": self.active_project_path}
   from src import bg_shader
   # Update gui section while preserving other keys like bg_shader_enabled

src/gui_2.py

@@ -4275,10 +4275,20 @@ def hello():
   imgui.set_item_tooltip("Open preset management modal")
   ch, self.ui_global_system_prompt = imgui.input_text_multiline("##gsp", self.ui_global_system_prompt, imgui.ImVec2(-1, 100))
   imgui.separator()
-  imgui.text("Global Tool Instructions")
-  ch, self.ui_global_tool_instructions = imgui.input_text_multiline("##gti", getattr(self, "ui_global_tool_instructions", ""), imgui.ImVec2(-1, 100))
-  if imgui.is_item_hovered():
-   imgui.set_tooltip("Instructions given to the agent about how to use its tools.")
+  imgui.text("Base System Prompt")
+  imgui.same_line()
+  _, self.ui_use_default_base_prompt = imgui.checkbox("Use Default Base System Prompt", self.ui_use_default_base_prompt)
+  imgui.same_line()
+  if imgui.button("Reset to Default"):
+   self.ui_base_system_prompt = ai_client._SYSTEM_PROMPT
+   self.ui_use_default_base_prompt = False
+  
+  if self.ui_use_default_base_prompt:
+   imgui.begin_disabled()
+   imgui.input_text_multiline("##base_prompt_def", ai_client._SYSTEM_PROMPT, imgui.ImVec2(-1, 100), imgui.InputTextFlags_.read_only)
+   imgui.end_disabled()
+  else:
+   ch, self.ui_base_system_prompt = imgui.input_text_multiline("##base_prompt", self.ui_base_system_prompt, imgui.ImVec2(-1, 150))
   imgui.separator()
   imgui.text("Project System Prompt")
   current_project = self.controller.ui_project_preset_name or "Select Preset..."