feat: add time tool with offset support and update localization for weekday

domain/agent/service.py

@@ -31,6 +31,7 @@ def _build_system_prompt(current_path: Optional[str]) -> str:
         "你可以通过工具对文件/目录进行查询、读写、移动、复制、删除，以及运行处理器（processor）。",
         "",
         "可用工具：",
+        "- time：获取服务器当前时间（精确到秒，英文星期），支持 year/month/day/hour/minute/second 偏移。",
         "- vfs_list_dir：浏览目录（列出 entries + pagination）。",
         "- vfs_stat：查看文件/目录信息。",
         "- vfs_read_text：读取文本文件内容（不支持二进制）。",

domain/agent/tools.py

@@ -1,5 +1,7 @@
+import calendar
 import json
 from dataclasses import dataclass
+from datetime import datetime, timedelta
 from typing import Any, Awaitable, Callable, Dict, List, Optional
 
 from domain.processors import ProcessDirectoryRequest, ProcessRequest, ProcessorService
@@ -16,6 +18,68 @@ class ToolSpec:
     handler: Callable[[Dict[str, Any]], Awaitable[Any]]
 
 
+def _parse_offset(args: Dict[str, Any], key: str) -> int:
+    value = args.get(key)
+    if value is None:
+        return 0
+    try:
+        return int(value)
+    except (TypeError, ValueError):
+        return 0
+
+
+def _add_months(dt: datetime, months: int) -> datetime:
+    if months == 0:
+        return dt
+    total = dt.year * 12 + (dt.month - 1) + months
+    year = total // 12
+    month = total % 12 + 1
+    last_day = calendar.monthrange(year, month)[1]
+    day = min(dt.day, last_day)
+    return dt.replace(year=year, month=month, day=day)
+
+
+async def _time(args: Dict[str, Any]) -> Dict[str, Any]:
+    now = datetime.now()
+    year_offset = _parse_offset(args, "year")
+    month_offset = _parse_offset(args, "month")
+    day_offset = _parse_offset(args, "day")
+    hour_offset = _parse_offset(args, "hour")
+    minute_offset = _parse_offset(args, "minute")
+    second_offset = _parse_offset(args, "second")
+
+    dt = _add_months(now, year_offset * 12 + month_offset)
+    dt = dt + timedelta(days=day_offset, hours=hour_offset, minutes=minute_offset, seconds=second_offset)
+
+    weekday_names = [
+        "Monday",
+        "Tuesday",
+        "Wednesday",
+        "Thursday",
+        "Friday",
+        "Saturday",
+        "Sunday",
+    ]
+    weekday = weekday_names[dt.weekday()]
+    dt_str = dt.strftime("%Y-%m-%d %H:%M:%S")
+    return {
+        "ok": True,
+        "summary": f"{dt_str} · {weekday}",
+        "data": {
+            "datetime": dt_str,
+            "weekday": weekday,
+            "offset": {
+                "year": year_offset,
+                "month": month_offset,
+                "day": day_offset,
+                "hour": hour_offset,
+                "minute": minute_offset,
+                "second": second_offset,
+            },
+        },
+    }
+
+
 async def _processors_list(_: Dict[str, Any]) -> Dict[str, Any]:
     return {"processors": ProcessorService.list_processors()}
 
@@ -188,6 +252,27 @@ async def _vfs_search(args: Dict[str, Any]) -> Dict[str, Any]:
 
 
 TOOLS: Dict[str, ToolSpec] = {
+    "time": ToolSpec(
+        name="time",
+        description=(
+            "获取服务器当前时间（精确到秒，含英文星期）。"
+            " 支持 year/month/day/hour/minute/second 偏移（可为负数）。"
+        ),
+        parameters={
+            "type": "object",
+            "properties": {
+                "year": {"type": "integer", "description": "年偏移（可为负数）"},
+                "month": {"type": "integer", "description": "月偏移（可为负数）"},
+                "day": {"type": "integer", "description": "日偏移（可为负数）"},
+                "hour": {"type": "integer", "description": "时偏移（可为负数）"},
+                "minute": {"type": "integer", "description": "分偏移（可为负数）"},
+                "second": {"type": "integer", "description": "秒偏移（可为负数）"},
+            },
+            "additionalProperties": False,
+        },
+        requires_confirmation=False,
+        handler=_time,
+    ),
     "processors_list": ToolSpec(
         name="processors_list",
         description="获取可用处理器列表（type/name/config_schema 等）。",
@@ -401,12 +486,138 @@ def openai_tools() -> List[Dict[str, Any]]:
     return out
 
 
-def tool_result_to_content(result: Any) -> str:
-    if result is None:
+def _stringify_value(value: Any) -> str:
+    if value is None:
         return ""
-    if isinstance(result, str):
-        return result
+    if isinstance(value, bool):
+        return "true" if value else "false"
+    if isinstance(value, (int, float)):
+        return str(value)
+    if isinstance(value, str):
+        return value
     try:
-        return json.dumps(result, ensure_ascii=False)
+        return json.dumps(value, ensure_ascii=False)
     except TypeError:
-        return json.dumps({"result": str(result)}, ensure_ascii=False)
+        return str(value)
+
+
+def _list_to_view_items(items: List[Any]) -> List[Any]:
+    normalized: List[Any] = []
+    for item in items:
+        if isinstance(item, dict):
+            normalized.append({str(k): _stringify_value(v) for k, v in item.items()})
+        else:
+            normalized.append(_stringify_value(item))
+    return normalized
+
+
+def _dict_to_kv_items(data: Dict[str, Any]) -> List[Dict[str, str]]:
+    return [{"key": str(k), "value": _stringify_value(v)} for k, v in data.items()]
+
+
+def _first_list_field(data: Dict[str, Any]) -> tuple[Optional[str], Optional[List[Any]]]:
+    for key, value in data.items():
+        if isinstance(value, list):
+            return str(key), value
+    return None, None
+
+
+def _build_view(data: Any) -> Dict[str, Any]:
+    if data is None:
+        return {"type": "kv", "items": []}
+    if isinstance(data, str):
+        return {"type": "text", "text": data}
+    if isinstance(data, list):
+        return {"type": "list", "items": _list_to_view_items(data)}
+    if isinstance(data, dict):
+        content = data.get("content")
+        if isinstance(content, str):
+            meta = {k: _stringify_value(v) for k, v in data.items() if k != "content"}
+            view: Dict[str, Any] = {"type": "text", "text": content}
+            if meta:
+                view["meta"] = meta
+            return view
+        list_key, list_val = _first_list_field(data)
+        if list_key and isinstance(list_val, list):
+            meta = {k: _stringify_value(v) for k, v in data.items() if k != list_key}
+            view = {"type": "list", "title": list_key, "items": _list_to_view_items(list_val)}
+            if meta:
+                view["meta"] = meta
+            return view
+        return {"type": "kv", "items": _dict_to_kv_items(data)}
+    return {"type": "text", "text": _stringify_value(data)}
+
+
+def _build_summary(view: Dict[str, Any]) -> str:
+    view_type = str(view.get("type") or "")
+    if view_type == "text":
+        text = view.get("text")
+        size = len(text) if isinstance(text, str) else 0
+        return f"chars: {size}" if size else "text"
+    if view_type == "list":
+        items = view.get("items")
+        count = len(items) if isinstance(items, list) else 0
+        title = str(view.get("title") or "items")
+        return f"{title}: {count}"
+    if view_type == "kv":
+        items = view.get("items")
+        count = len(items) if isinstance(items, list) else 0
+        return f"fields: {count}"
+    if view_type == "error":
+        return str(view.get("message") or "error")
+    return ""
+
+
+def _build_error_payload(code: str, message: str, detail: Any = None) -> Dict[str, Any]:
+    summary = "Canceled" if code == "canceled" else message or "error"
+    view = {"type": "error", "message": summary}
+    payload: Dict[str, Any] = {
+        "ok": False,
+        "summary": summary,
+        "view": view,
+        "error": {
+            "code": code,
+            "message": message,
+        },
+    }
+    if detail is not None:
+        payload["error"]["detail"] = detail
+    return payload
+
+
+def _normalize_tool_result(result: Any) -> Dict[str, Any]:
+    if isinstance(result, dict) and "ok" in result:
+        payload = dict(result)
+        if payload.get("ok") is False:
+            error = payload.get("error")
+            message = _stringify_value(error.get("message") if isinstance(error, dict) else error)
+            payload.setdefault("summary", message or "error")
+            payload.setdefault("view", {"type": "error", "message": payload["summary"]})
+            return payload
+        data = payload.get("data")
+        if payload.get("view") is None:
+            payload["view"] = _build_view(data)
+        if not payload.get("summary"):
+            payload["summary"] = _build_summary(payload["view"])
+        return payload
+
+    if isinstance(result, dict) and result.get("canceled"):
+        reason = _stringify_value(result.get("reason") or "canceled")
+        return _build_error_payload("canceled", reason, detail=result)
+
+    if isinstance(result, dict) and "error" in result:
+        error = result.get("error")
+        message = _stringify_value(error.get("message") if isinstance(error, dict) else error)
+        return _build_error_payload("error", message, detail=error)
+
+    view = _build_view(result)
+    summary = _build_summary(view)
+    return {"ok": True, "summary": summary, "view": view, "data": result}
+
+
+def tool_result_to_content(result: Any) -> str:
+    payload = _normalize_tool_result(result)
+    try:
+        return json.dumps(payload, ensure_ascii=False, default=str)
+    except TypeError:
+        return json.dumps({"ok": False, "summary": "error", "view": {"type": "error", "message": "error"}}, ensure_ascii=False)