add uv install guide & pyproject.toml; unify error prefix to !!!Error:

README.md

@@ -89,6 +89,20 @@ cp mykey_template.py mykey.py
 python launch.pyw
 ```
 
+#### Method 2: uv (for experienced Python users)
+
+If you prefer a modern Python workflow, GenericAgent also provides a minimal `pyproject.toml`:
+
+```bash
+git clone https://github.com/lsdefine/GenericAgent.git
+cd GenericAgent
+uv pip install -e ".[ui]"        # Core + GUI dependencies
+cp mykey_template.py mykey.py
+python launch.pyw
+```
+
+> GenericAgent is meant to grow its environment through the Agent itself, not by pre-installing every possible package.
+
 Full guide: [GETTING_STARTED.md](GETTING_STARTED.md)
 
 ---
@@ -293,6 +307,20 @@ cp mykey_template.py mykey.py
 python launch.pyw
 ```
 
+#### 方法二：uv 快速安装（熟悉 Python 的用户）
+
+如果你习惯现代 Python 工作流，GenericAgent 也提供了一个最小化的 `pyproject.toml`：
+
+```bash
+git clone https://github.com/lsdefine/GenericAgent.git
+cd GenericAgent
+uv pip install -e ".[ui]"        # 核心 + GUI 依赖
+cp mykey_template.py mykey.py
+python launch.pyw
+```
+
+> GenericAgent 更推荐由 Agent 在使用中自举环境，而不是预先手动装完整依赖。
+
 完整引导流程见 [GETTING_STARTED.md](GETTING_STARTED.md)。
 
 📖 新手使用指南（图文版）：[飞书文档](https://my.feishu.cn/wiki/CGrDw0T76iNFuskmwxdcWrpinPb)

llmcore.py

@@ -148,7 +148,7 @@ def _parse_claude_sse(resp_lines):
         elif evt_type == "error":
             err = evt.get("error", {})
             emsg = err.get("message", str(err)) if isinstance(err, dict) else str(err)
-            warn = f"\n\n[SSE Error: {emsg}]"; break
+            warn = f"\n\n!!!Error: SSE {emsg}"; break
     if not warn:
         if not got_message_stop and not stop_reason: warn = "\n\n[!!! 流异常中断，未收到完整响应 !!!]"
         elif stop_reason == "max_tokens": warn = "\n\n[!!! Response truncated: max_tokens !!!]"
@@ -211,7 +211,7 @@ def _parse_openai_sse(resp_lines, api_mode="chat_completions"):
             elif etype == "error":
                 err = evt.get("error", {})
                 emsg = err.get("message", str(err)) if isinstance(err, dict) else str(err)
-                if emsg: content_text += f"Error: {emsg}"; yield f"Error: {emsg}"
+                if emsg: content_text += f"!!!Error: {emsg}"; yield f"!!!Error: {emsg}"
                 break
             elif etype == "response.completed":
                 usage = evt.get("response", {}).get("usage", {})
@@ -522,7 +522,7 @@ class BaseSession:
                 if block.get('type', '') == 'tool_use':
                     tu = {'name': block.get('name', ''), 'arguments': block.get('input', {})}
                     yield f'<tool_use>{json.dumps(tu, ensure_ascii=False)}</tool_use>'
-            if not content.startswith("Error:"): self.history.append({"role": "assistant", "content": [{"type": "text", "text": content}]})
+            if not content.startswith("!!!Error:"): self.history.append({"role": "assistant", "content": [{"type": "text", "text": content}]})
         return _ask_gen() if stream else ''.join(list(_ask_gen()))
 
 class ClaudeSession(BaseSession):
@@ -537,7 +537,7 @@ class ClaudeSession(BaseSession):
                 if r.status_code != 200: raise Exception(f"HTTP {r.status_code} {r.content.decode('utf-8', errors='replace')[:500]}")
                 return (yield from _parse_claude_sse(r.iter_lines())) or []
         except Exception as e:
-            yield (err := f"Error: {e}")
+            yield (err := f"!!!Error: {e}")
             return [{"type": "text", "text": err}]
     def make_messages(self, raw_list):
         msgs = [{"role": m['role'], "content": list(m['content'])} for m in raw_list]
@@ -621,7 +621,7 @@ class NativeClaudeSession(BaseSession):
                         elif b.get("type") == "thinking": yield ""
                     return content_blocks
         except Exception as e:
-            yield (err := f"Error: {e}")
+            yield (err := f"!!!Error: {e}")
             return [{"type": "text", "text": err}]
 
     def ask(self, msg):
@@ -635,7 +635,7 @@ class NativeClaudeSession(BaseSession):
         try:
             while True: yield next(gen)
         except StopIteration as e: content_blocks = e.value or []
-        if content_blocks and not (len(content_blocks) == 1 and content_blocks[0].get("text", "").startswith("Error:")):
+        if content_blocks and not (len(content_blocks) == 1 and content_blocks[0].get("text", "").startswith("!!!Error:")):
             self.history.append({"role": "assistant", "content": content_blocks})
         text_parts = [b["text"] for b in content_blocks if b.get("type") == "text"]
         content = "\n".join(text_parts).strip()
@@ -891,7 +891,7 @@ class MixinSession:
         return self._cur_idx
     def _raw_ask(self, *args, **kwargs):
         base, n = self._pick(), len(self._sessions)
-        test_error = lambda x: isinstance(x, str) and (x.startswith('Error:') or x.startswith('[Error:'))
+        test_error = lambda x: isinstance(x, str) and x.lstrip().startswith(('!!!Error:', '[Error:'))
         for attempt in range(self._retries + 1):
             idx = (base + attempt) % n
             gen = self._orig_raw_asks[idx](*args, **kwargs)

pyproject.toml

@@ -0,0 +1,40 @@
+# AI install hint: choose deps by OS/env + needed ui/bot. do NOT install all.
+# minimal core first; missing packages can be installed on demand.
+
+[project]
+name = "genericagent"
+version = "0.1.0"
+description = "Minimalist self-evolving autonomous agent framework"
+readme = "README.md"
+requires-python = ">=3.10,<3.14"
+license = { text = "MIT" }
+dependencies = [
+    "requests>=2.28",
+    "beautifulsoup4>=4.12",
+    "bottle>=0.12",
+    "simple-websocket-server>=0.4",
+]
+
+[project.optional-dependencies]
+# select extras, not all. match current task/env.
+# examples: .[ui] for GUI, bot deps only if bot needed.
+ui = [
+    "streamlit>=1.28",
+    "pywebview>=4.0",
+]
+all-frontends = [
+    "python-telegram-bot>=20.0",
+    "qq-botpy>=1.0",
+    "pycryptodome>=3.19",
+    "qrcode>=7.4",
+    "lark-oapi>=1.0",
+    "wecom-aibot-sdk>=1.0",
+    "dingtalk-stream>=1.0",
+]
+
+[build-system]
+requires = ["setuptools>=68.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+py-modules = []