Merge branch 'main' into pr-746

README.md

@@ -16,10 +16,12 @@
 
 ⚡️ Delivers core agent functionality in just **~4,000** lines of code — **99% smaller** than Clawdbot's 430k+ lines.
 
-📏 Real-time line count: **3,668 lines** (run `bash core_agent_lines.sh` to verify anytime)
+📏 Real-time line count: **3,689 lines** (run `bash core_agent_lines.sh` to verify anytime)
 
 ## 📢 News
 
+- **2026-02-16** 🦞 nanobot now integrates a [ClawHub](https://clawhub.ai) skill — search and install public agent skills.
+- **2026-02-15** 🔑 nanobot now supports OpenAI Codex provider with OAuth login support.
 - **2026-02-14** 🔌 nanobot now supports MCP! See [MCP section](#mcp-model-context-protocol) for details.
 - **2026-02-13** 🎉 Released v0.1.3.post7 — includes security hardening and multiple improvements. All users are recommended to upgrade to the latest version. See [release notes](https://github.com/HKUDS/nanobot/releases/tag/v0.1.3.post7) for more details.
 - **2026-02-12** 🧠 Redesigned memory system — Less code, more reliable. Join the [discussion](https://github.com/HKUDS/nanobot/discussions/566) about it!
@@ -143,19 +145,19 @@ That's it! You have a working AI assistant in 2 minutes.
 
 ## 💬 Chat Apps
 
-Talk to your nanobot through Telegram, Discord, WhatsApp, Feishu, Mochat, DingTalk, Slack, Email, or QQ — anytime, anywhere.
+Connect nanobot to your favorite chat platform.
 
-| Channel | Setup |
+| Channel | What you need |
-|---------|-------|
+|---------|---------------|
-| **Telegram** | Easy (just a token) |
+| **Telegram** | Bot token from @BotFather |
-| **Discord** | Easy (bot token + intents) |
+| **Discord** | Bot token + Message Content intent |
-| **WhatsApp** | Medium (scan QR) |
+| **WhatsApp** | QR code scan |
-| **Feishu** | Medium (app credentials) |
+| **Feishu** | App ID + App Secret |
-| **Mochat** | Medium (claw token + websocket) |
+| **Mochat** | Claw token (auto-setup available) |
-| **DingTalk** | Medium (app credentials) |
+| **DingTalk** | App Key + App Secret |
-| **Slack** | Medium (bot + app tokens) |
+| **Slack** | Bot token + App-Level token |
-| **Email** | Medium (IMAP/SMTP credentials) |
+| **Email** | IMAP/SMTP credentials |
-| **QQ** | Easy (app credentials) |
+| **QQ** | App ID + App Secret |
 
 <details>
 <summary><b>Telegram</b> (Recommended)</summary>
@@ -586,6 +588,7 @@ Config file: `~/.nanobot/config.json`
 | `zhipu` | LLM (Zhipu GLM) | [open.bigmodel.cn](https://open.bigmodel.cn) |
 | `vllm` | LLM (local, any OpenAI-compatible server) | — |
 | `openai_codex` | LLM (Codex, OAuth) | `nanobot provider login openai-codex` |
+| `github_copilot` | LLM (GitHub Copilot, OAuth) | Requires [GitHub Copilot](https://github.com/features/copilot) subscription |
 
 <details>
 <summary><b>OpenAI Codex (OAuth)</b></summary>

nanobot/agent/context.py

@@ -225,12 +225,16 @@ To recall past events, grep {workspace_path}/memory/HISTORY.md"""
         Returns:
             Updated message list.
         """
-        msg: dict[str, Any] = {"role": "assistant", "content": content or ""}
+        msg: dict[str, Any] = {"role": "assistant"}
+
+        # Omit empty content — some backends reject empty text blocks
+        if content:
+            msg["content"] = content
 
         if tool_calls:
             msg["tool_calls"] = tool_calls
 
-        # Thinking models reject history without this
+        # Include reasoning content when provided (required by some thinking models)
         if reasoning_content:
             msg["reasoning_content"] = reasoning_content
 

nanobot/agent/tools/cron.py

@@ -50,6 +50,10 @@ class CronTool(Tool):
                     "type": "string",
                     "description": "Cron expression like '0 9 * * *' (for scheduled tasks)"
                 },
+                "tz": {
+                    "type": "string",
+                    "description": "IANA timezone for cron expressions (e.g. 'America/Vancouver')"
+                },
                 "at": {
                     "type": "string",
                     "description": "ISO datetime for one-time execution (e.g. '2026-02-12T10:30:00')"
@@ -68,30 +72,46 @@ class CronTool(Tool):
         message: str = "",
         every_seconds: int | None = None,
         cron_expr: str | None = None,
+        tz: str | None = None,
         at: str | None = None,
         job_id: str | None = None,
         **kwargs: Any
     ) -> str:
         if action == "add":
-            return self._add_job(message, every_seconds, cron_expr, at)
+            return self._add_job(message, every_seconds, cron_expr, tz, at)
         elif action == "list":
             return self._list_jobs()
         elif action == "remove":
             return self._remove_job(job_id)
         return f"Unknown action: {action}"
     
-    def _add_job(self, message: str, every_seconds: int | None, cron_expr: str | None, at: str | None) -> str:
+    def _add_job(
+        self,
+        message: str,
+        every_seconds: int | None,
+        cron_expr: str | None,
+        tz: str | None,
+        at: str | None,
+    ) -> str:
         if not message:
             return "Error: message is required for add"
         if not self._channel or not self._chat_id:
             return "Error: no session context (channel/chat_id)"
+        if tz and not cron_expr:
+            return "Error: tz can only be used with cron_expr"
+        if tz:
+            from zoneinfo import ZoneInfo
+            try:
+                ZoneInfo(tz)
+            except (KeyError, Exception):
+                return f"Error: unknown timezone '{tz}'"
         
         # Build schedule
         delete_after = False
         if every_seconds:
             schedule = CronSchedule(kind="every", every_ms=every_seconds * 1000)
         elif cron_expr:
-            schedule = CronSchedule(kind="cron", expr=cron_expr)
+            schedule = CronSchedule(kind="cron", expr=cron_expr, tz=tz)
         elif at:
             from datetime import datetime
             dt = datetime.fromisoformat(at)

nanobot/agent/tools/message.py

@@ -52,6 +52,11 @@ class MessageTool(Tool):
                 "chat_id": {
                     "type": "string",
                     "description": "Optional: target chat/user ID"
+                },
+                "media": {
+                    "type": "array",
+                    "items": {"type": "string"},
+                    "description": "Optional: list of file paths to attach (images, audio, documents)"
                 }
             },
             "required": ["content"]
@@ -62,6 +67,7 @@ class MessageTool(Tool):
         content: str, 
         channel: str | None = None, 
         chat_id: str | None = None,
+        media: list[str] | None = None,
         **kwargs: Any
     ) -> str:
         channel = channel or self._default_channel
@@ -76,11 +82,13 @@ class MessageTool(Tool):
         msg = OutboundMessage(
             channel=channel,
             chat_id=chat_id,
-            content=content
+            content=content,
+            media=media or []
         )
         
         try:
             await self._send_callback(msg)
-            return f"Message sent to {channel}:{chat_id}"
+            media_info = f" with {len(media)} attachments" if media else ""
+            return f"Message sent to {channel}:{chat_id}{media_info}"
         except Exception as e:
             return f"Error sending message: {str(e)}"

nanobot/channels/telegram.py

@@ -198,6 +198,18 @@ class TelegramChannel(BaseChannel):
             await self._app.shutdown()
             self._app = None
     
+    @staticmethod
+    def _get_media_type(path: str) -> str:
+        """Guess media type from file extension."""
+        ext = path.rsplit(".", 1)[-1].lower() if "." in path else ""
+        if ext in ("jpg", "jpeg", "png", "gif", "webp"):
+            return "photo"
+        if ext == "ogg":
+            return "voice"
+        if ext in ("mp3", "m4a", "wav", "aac"):
+            return "audio"
+        return "document"
+
     async def send(self, msg: OutboundMessage) -> None:
         """Send a message through Telegram."""
         if not self._app:
@@ -212,16 +224,35 @@ class TelegramChannel(BaseChannel):
             logger.error(f"Invalid chat_id: {msg.chat_id}")
             return
 
-        for chunk in _split_message(msg.content):
+        # Send media files
+        for media_path in (msg.media or []):
             try:
-                html = _markdown_to_telegram_html(chunk)
+                media_type = self._get_media_type(media_path)
-                await self._app.bot.send_message(chat_id=chat_id, text=html, parse_mode="HTML")
+                sender = {
+                    "photo": self._app.bot.send_photo,
+                    "voice": self._app.bot.send_voice,
+                    "audio": self._app.bot.send_audio,
+                }.get(media_type, self._app.bot.send_document)
+                param = "photo" if media_type == "photo" else media_type if media_type in ("voice", "audio") else "document"
+                with open(media_path, 'rb') as f:
+                    await sender(chat_id=chat_id, **{param: f})
             except Exception as e:
-                logger.warning(f"HTML parse failed, falling back to plain text: {e}")
+                filename = media_path.rsplit("/", 1)[-1]
+                logger.error(f"Failed to send media {media_path}: {e}")
+                await self._app.bot.send_message(chat_id=chat_id, text=f"[Failed to send: {filename}]")
+
+        # Send text content
+        if msg.content and msg.content != "[empty message]":
+            for chunk in _split_message(msg.content):
                 try:
-                    await self._app.bot.send_message(chat_id=chat_id, text=chunk)
+                    html = _markdown_to_telegram_html(chunk)
-                except Exception as e2:
+                    await self._app.bot.send_message(chat_id=chat_id, text=html, parse_mode="HTML")
-                    logger.error(f"Error sending Telegram message: {e2}")
+                except Exception as e:
+                    logger.warning(f"HTML parse failed, falling back to plain text: {e}")
+                    try:
+                        await self._app.bot.send_message(chat_id=chat_id, text=chunk)
+                    except Exception as e2:
+                        logger.error(f"Error sending Telegram message: {e2}")
     
     async def _on_start(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
         """Handle /start command."""

nanobot/cli/commands.py

@@ -292,7 +292,9 @@ def _make_provider(config: Config):
     if provider_name == "openai_codex" or model.startswith("openai-codex/"):
         return OpenAICodexProvider(default_model=model)
 
-    if not model.startswith("bedrock/") and not (p and p.api_key):
+    from nanobot.providers.registry import find_by_name
+    spec = find_by_name(provider_name)
+    if not model.startswith("bedrock/") and not (p and p.api_key) and not (spec and spec.is_oauth):
         console.print("[red]Error: No API key configured.[/red]")
         console.print("Set one in ~/.nanobot/config.json under providers section")
         raise typer.Exit(1)
@@ -726,20 +728,26 @@ def cron_list(
     table.add_column("Next Run")
     
     import time
+    from datetime import datetime as _dt
+    from zoneinfo import ZoneInfo
     for job in jobs:
         # Format schedule
         if job.schedule.kind == "every":
             sched = f"every {(job.schedule.every_ms or 0) // 1000}s"
         elif job.schedule.kind == "cron":
-            sched = job.schedule.expr or ""
+            sched = f"{job.schedule.expr or ''} ({job.schedule.tz})" if job.schedule.tz else (job.schedule.expr or "")
         else:
             sched = "one-time"
         
         # Format next run
         next_run = ""
         if job.state.next_run_at_ms:
-            next_time = time.strftime("%Y-%m-%d %H:%M", time.localtime(job.state.next_run_at_ms / 1000))
+            ts = job.state.next_run_at_ms / 1000
-            next_run = next_time
+            try:
+                tz = ZoneInfo(job.schedule.tz) if job.schedule.tz else None
+                next_run = _dt.fromtimestamp(ts, tz).strftime("%Y-%m-%d %H:%M")
+            except Exception:
+                next_run = time.strftime("%Y-%m-%d %H:%M", time.localtime(ts))
         
         status = "[green]enabled[/green]" if job.enabled else "[dim]disabled[/dim]"
         
@@ -754,6 +762,7 @@ def cron_add(
     message: str = typer.Option(..., "--message", "-m", help="Message for agent"),
     every: int = typer.Option(None, "--every", "-e", help="Run every N seconds"),
     cron_expr: str = typer.Option(None, "--cron", "-c", help="Cron expression (e.g. '0 9 * * *')"),
+    tz: str | None = typer.Option(None, "--tz", help="IANA timezone for cron (e.g. 'America/Vancouver')"),
     at: str = typer.Option(None, "--at", help="Run once at time (ISO format)"),
     deliver: bool = typer.Option(False, "--deliver", "-d", help="Deliver response to channel"),
     to: str = typer.Option(None, "--to", help="Recipient for delivery"),
@@ -764,11 +773,15 @@ def cron_add(
     from nanobot.cron.service import CronService
     from nanobot.cron.types import CronSchedule
     
+    if tz and not cron_expr:
+        console.print("[red]Error: --tz can only be used with --cron[/red]")
+        raise typer.Exit(1)
+
     # Determine schedule type
     if every:
         schedule = CronSchedule(kind="every", every_ms=every * 1000)
     elif cron_expr:
-        schedule = CronSchedule(kind="cron", expr=cron_expr)
+        schedule = CronSchedule(kind="cron", expr=cron_expr, tz=tz)
     elif at:
         import datetime
         dt = datetime.datetime.fromisoformat(at)

nanobot/config/loader.py

@@ -2,7 +2,6 @@
 
 import json
 from pathlib import Path
-from typing import Any
 
 from nanobot.config.schema import Config
 
@@ -35,7 +34,7 @@ def load_config(config_path: Path | None = None) -> Config:
             with open(path) as f:
                 data = json.load(f)
             data = _migrate_config(data)
-            return Config.model_validate(convert_keys(data))
+            return Config.model_validate(data)
         except (json.JSONDecodeError, ValueError) as e:
             print(f"Warning: Failed to load config from {path}: {e}")
             print("Using default configuration.")
@@ -54,9 +53,7 @@ def save_config(config: Config, config_path: Path | None = None) -> None:
     path = config_path or get_config_path()
     path.parent.mkdir(parents=True, exist_ok=True)
 
-    # Convert to camelCase format
+    data = config.model_dump(by_alias=True)
-    data = config.model_dump()
-    data = convert_to_camel(data)
 
     with open(path, "w") as f:
         json.dump(data, f, indent=2)
@@ -70,37 +67,3 @@ def _migrate_config(data: dict) -> dict:
     if "restrictToWorkspace" in exec_cfg and "restrictToWorkspace" not in tools:
         tools["restrictToWorkspace"] = exec_cfg.pop("restrictToWorkspace")
     return data
-
-
-def convert_keys(data: Any) -> Any:
-    """Convert camelCase keys to snake_case for Pydantic."""
-    if isinstance(data, dict):
-        return {camel_to_snake(k): convert_keys(v) for k, v in data.items()}
-    if isinstance(data, list):
-        return [convert_keys(item) for item in data]
-    return data
-
-
-def convert_to_camel(data: Any) -> Any:
-    """Convert snake_case keys to camelCase."""
-    if isinstance(data, dict):
-        return {snake_to_camel(k): convert_to_camel(v) for k, v in data.items()}
-    if isinstance(data, list):
-        return [convert_to_camel(item) for item in data]
-    return data
-
-
-def camel_to_snake(name: str) -> str:
-    """Convert camelCase to snake_case."""
-    result = []
-    for i, char in enumerate(name):
-        if char.isupper() and i > 0:
-            result.append("_")
-        result.append(char.lower())
-    return "".join(result)
-
-
-def snake_to_camel(name: str) -> str:
-    """Convert snake_case to camelCase."""
-    components = name.split("_")
-    return components[0] + "".join(x.title() for x in components[1:])

nanobot/config/schema.py

@@ -2,27 +2,37 @@
 
 from pathlib import Path
 from pydantic import BaseModel, Field, ConfigDict
+from pydantic.alias_generators import to_camel
 from pydantic_settings import BaseSettings
 
 
-class WhatsAppConfig(BaseModel):
+class Base(BaseModel):
+    """Base model that accepts both camelCase and snake_case keys."""
+
+    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
+
+
+class WhatsAppConfig(Base):
     """WhatsApp channel configuration."""
+
     enabled: bool = False
     bridge_url: str = "ws://localhost:3001"
     bridge_token: str = ""  # Shared token for bridge auth (optional, recommended)
     allow_from: list[str] = Field(default_factory=list)  # Allowed phone numbers
 
 
-class TelegramConfig(BaseModel):
+class TelegramConfig(Base):
     """Telegram channel configuration."""
+
     enabled: bool = False
     token: str = ""  # Bot token from @BotFather
     allow_from: list[str] = Field(default_factory=list)  # Allowed user IDs or usernames
     proxy: str | None = None  # HTTP/SOCKS5 proxy URL, e.g. "http://127.0.0.1:7890" or "socks5://127.0.0.1:1080"
 
 
-class FeishuConfig(BaseModel):
+class FeishuConfig(Base):
     """Feishu/Lark channel configuration using WebSocket long connection."""
+
     enabled: bool = False
     app_id: str = ""  # App ID from Feishu Open Platform
     app_secret: str = ""  # App Secret from Feishu Open Platform
@@ -31,24 +41,28 @@ class FeishuConfig(BaseModel):
     allow_from: list[str] = Field(default_factory=list)  # Allowed user open_ids
 
 
-class DingTalkConfig(BaseModel):
+class DingTalkConfig(Base):
     """DingTalk channel configuration using Stream mode."""
+
     enabled: bool = False
     client_id: str = ""  # AppKey
     client_secret: str = ""  # AppSecret
     allow_from: list[str] = Field(default_factory=list)  # Allowed staff_ids
 
 
-class DiscordConfig(BaseModel):
+class DiscordConfig(Base):
     """Discord channel configuration."""
+
     enabled: bool = False
     token: str = ""  # Bot token from Discord Developer Portal
     allow_from: list[str] = Field(default_factory=list)  # Allowed user IDs
     gateway_url: str = "wss://gateway.discord.gg/?v=10&encoding=json"
     intents: int = 37377  # GUILDS + GUILD_MESSAGES + DIRECT_MESSAGES + MESSAGE_CONTENT
 
-class EmailConfig(BaseModel):
+
+class EmailConfig(Base):
     """Email channel configuration (IMAP inbound + SMTP outbound)."""
+
     enabled: bool = False
     consent_granted: bool = False  # Explicit owner permission to access mailbox data
 
@@ -78,18 +92,21 @@ class EmailConfig(BaseModel):
     allow_from: list[str] = Field(default_factory=list)  # Allowed sender email addresses
 
 
-class MochatMentionConfig(BaseModel):
+class MochatMentionConfig(Base):
     """Mochat mention behavior configuration."""
+
     require_in_groups: bool = False
 
 
-class MochatGroupRule(BaseModel):
+class MochatGroupRule(Base):
     """Mochat per-group mention requirement."""
+
     require_mention: bool = False
 
 
-class MochatConfig(BaseModel):
+class MochatConfig(Base):
     """Mochat channel configuration."""
+
     enabled: bool = False
     base_url: str = "https://mochat.io"
     socket_url: str = ""
@@ -114,15 +131,17 @@ class MochatConfig(BaseModel):
     reply_delay_ms: int = 120000
 
 
-class SlackDMConfig(BaseModel):
+class SlackDMConfig(Base):
     """Slack DM policy configuration."""
+
     enabled: bool = True
     policy: str = "open"  # "open" or "allowlist"
     allow_from: list[str] = Field(default_factory=list)  # Allowed Slack user IDs
 
 
-class SlackConfig(BaseModel):
+class SlackConfig(Base):
     """Slack channel configuration."""
+
     enabled: bool = False
     mode: str = "socket"  # "socket" supported
     webhook_path: str = "/slack/events"
@@ -134,16 +153,18 @@ class SlackConfig(BaseModel):
     dm: SlackDMConfig = Field(default_factory=SlackDMConfig)
 
 
-class QQConfig(BaseModel):
+class QQConfig(Base):
     """QQ channel configuration using botpy SDK."""
+
     enabled: bool = False
     app_id: str = ""  # 机器人 ID (AppID) from q.qq.com
     secret: str = ""  # 机器人密钥 (AppSecret) from q.qq.com
     allow_from: list[str] = Field(default_factory=list)  # Allowed user openids (empty = public access)
 
 
-class ChannelsConfig(BaseModel):
+class ChannelsConfig(Base):
     """Configuration for chat channels."""
+
     whatsapp: WhatsAppConfig = Field(default_factory=WhatsAppConfig)
     telegram: TelegramConfig = Field(default_factory=TelegramConfig)
     discord: DiscordConfig = Field(default_factory=DiscordConfig)
@@ -155,8 +176,9 @@ class ChannelsConfig(BaseModel):
     qq: QQConfig = Field(default_factory=QQConfig)
 
 
-class AgentDefaults(BaseModel):
+class AgentDefaults(Base):
     """Default agent configuration."""
+
     workspace: str = "~/.nanobot/workspace"
     model: str = "anthropic/claude-opus-4-5"
     max_tokens: int = 8192
@@ -165,20 +187,23 @@ class AgentDefaults(BaseModel):
     memory_window: int = 50
 
 
-class AgentsConfig(BaseModel):
+class AgentsConfig(Base):
     """Agent configuration."""
+
     defaults: AgentDefaults = Field(default_factory=AgentDefaults)
 
 
-class ProviderConfig(BaseModel):
+class ProviderConfig(Base):
     """LLM provider configuration."""
+
     api_key: str = ""
     api_base: str | None = None
     extra_headers: dict[str, str] | None = None  # Custom headers (e.g. APP-Code for AiHubMix)
 
 
-class ProvidersConfig(BaseModel):
+class ProvidersConfig(Base):
     """Configuration for LLM providers."""
+
     custom: ProviderConfig = Field(default_factory=ProviderConfig)  # Any OpenAI-compatible endpoint
     anthropic: ProviderConfig = Field(default_factory=ProviderConfig)
     openai: ProviderConfig = Field(default_factory=ProviderConfig)
@@ -193,40 +218,47 @@ class ProvidersConfig(BaseModel):
     minimax: ProviderConfig = Field(default_factory=ProviderConfig)
     aihubmix: ProviderConfig = Field(default_factory=ProviderConfig)  # AiHubMix API gateway
     openai_codex: ProviderConfig = Field(default_factory=ProviderConfig)  # OpenAI Codex (OAuth)
+    github_copilot: ProviderConfig = Field(default_factory=ProviderConfig)  # Github Copilot (OAuth)
 
 
-class GatewayConfig(BaseModel):
+class GatewayConfig(Base):
     """Gateway/server configuration."""
+
     host: str = "0.0.0.0"
     port: int = 18790
 
 
-class WebSearchConfig(BaseModel):
+class WebSearchConfig(Base):
     """Web search tool configuration."""
+
     api_key: str = ""  # Brave Search API key
     max_results: int = 5
 
 
-class WebToolsConfig(BaseModel):
+class WebToolsConfig(Base):
     """Web tools configuration."""
+
     search: WebSearchConfig = Field(default_factory=WebSearchConfig)
 
 
-class ExecToolConfig(BaseModel):
+class ExecToolConfig(Base):
     """Shell exec tool configuration."""
+
     timeout: int = 60
 
 
-class MCPServerConfig(BaseModel):
+class MCPServerConfig(Base):
     """MCP server connection configuration (stdio or HTTP)."""
+
     command: str = ""  # Stdio: command to run (e.g. "npx")
     args: list[str] = Field(default_factory=list)  # Stdio: command arguments
     env: dict[str, str] = Field(default_factory=dict)  # Stdio: extra env vars
     url: str = ""  # HTTP: streamable HTTP endpoint URL
 
 
-class ToolsConfig(BaseModel):
+class ToolsConfig(Base):
     """Tools configuration."""
+
     web: WebToolsConfig = Field(default_factory=WebToolsConfig)
     exec: ExecToolConfig = Field(default_factory=ExecToolConfig)
     restrict_to_workspace: bool = False  # If true, restrict all tool access to workspace directory
@@ -235,6 +267,7 @@ class ToolsConfig(BaseModel):
 
 class Config(BaseSettings):
     """Root configuration for nanobot."""
+
     agents: AgentsConfig = Field(default_factory=AgentsConfig)
     channels: ChannelsConfig = Field(default_factory=ChannelsConfig)
     providers: ProvidersConfig = Field(default_factory=ProvidersConfig)
@@ -249,6 +282,7 @@ class Config(BaseSettings):
     def _match_provider(self, model: str | None = None) -> tuple["ProviderConfig | None", str | None]:
         """Match provider config and its registry name. Returns (config, spec_name)."""
         from nanobot.providers.registry import PROVIDERS
+
         model_lower = (model or self.agents.defaults.model).lower()
 
         # Match by keyword (order follows PROVIDERS registry)
@@ -286,6 +320,7 @@ class Config(BaseSettings):
     def get_api_base(self, model: str | None = None) -> str | None:
         """Get API base URL for the given model. Applies default URLs for known gateways."""
         from nanobot.providers.registry import find_by_name
+
         p, name = self._match_provider(model)
         if p and p.api_base:
             return p.api_base
@@ -298,7 +333,4 @@ class Config(BaseSettings):
                 return spec.default_api_base
         return None
 
-    model_config = ConfigDict(
+    model_config = ConfigDict(env_prefix="NANOBOT_", env_nested_delimiter="__")
-        env_prefix="NANOBOT_",
-        env_nested_delimiter="__"
-    )

nanobot/cron/service.py

@@ -32,7 +32,8 @@ def _compute_next_run(schedule: CronSchedule, now_ms: int) -> int | None:
         try:
             from croniter import croniter
             from zoneinfo import ZoneInfo
-            base_time = time.time()
+            # Use caller-provided reference time for deterministic scheduling
+            base_time = now_ms / 1000
             tz = ZoneInfo(schedule.tz) if schedule.tz else datetime.now().astimezone().tzinfo
             base_dt = datetime.fromtimestamp(base_time, tz=tz)
             cron = croniter(schedule.expr, base_dt)

nanobot/providers/registry.py

@@ -177,6 +177,25 @@ PROVIDERS: tuple[ProviderSpec, ...] = (
         is_oauth=True,                      # OAuth-based authentication
     ),
 
+    # Github Copilot: uses OAuth, not API key.
+    ProviderSpec(
+        name="github_copilot",
+        keywords=("github_copilot", "copilot"),
+        env_key="",                         # OAuth-based, no API key
+        display_name="Github Copilot",
+        litellm_prefix="github_copilot",   # github_copilot/model → github_copilot/model
+        skip_prefixes=("github_copilot/",),
+        env_extras=(),
+        is_gateway=False,
+        is_local=False,
+        detect_by_key_prefix="",
+        detect_by_base_keyword="",
+        default_api_base="",
+        strip_model_prefix=False,
+        model_overrides=(),
+        is_oauth=True,                      # OAuth-based authentication
+    ),
+
     # DeepSeek: needs "deepseek/" prefix for LiteLLM routing.
     ProviderSpec(
         name="deepseek",

nanobot/skills/README.md

@@ -21,4 +21,5 @@ The skill format and metadata structure follow OpenClaw's conventions to maintai
 | `weather` | Get weather info using wttr.in and Open-Meteo |
 | `summarize` | Summarize URLs, files, and YouTube videos |
 | `tmux` | Remote-control tmux sessions |
+| `clawhub` | Search and install skills from ClawHub registry |
 | `skill-creator` | Create new skills |

nanobot/skills/clawhub/SKILL.md

@@ -0,0 +1,53 @@
+---
+name: clawhub
+description: Search and install agent skills from ClawHub, the public skill registry.
+homepage: https://clawhub.ai
+metadata: {"nanobot":{"emoji":"🦞"}}
+---
+
+# ClawHub
+
+Public skill registry for AI agents. Search by natural language (vector search).
+
+## When to use
+
+Use this skill when the user asks any of:
+- "find a skill for …"
+- "search for skills"
+- "install a skill"
+- "what skills are available?"
+- "update my skills"
+
+## Search
+
+```bash
+npx --yes clawhub@latest search "web scraping" --limit 5
+```
+
+## Install
+
+```bash
+npx --yes clawhub@latest install <slug> --workdir ~/.nanobot/workspace
+```
+
+Replace `<slug>` with the skill name from search results. This places the skill into `~/.nanobot/workspace/skills/`, where nanobot loads workspace skills from. Always include `--workdir`.
+
+## Update
+
+```bash
+npx --yes clawhub@latest update --all --workdir ~/.nanobot/workspace
+```
+
+## List installed
+
+```bash
+npx --yes clawhub@latest list --workdir ~/.nanobot/workspace
+```
+
+## Notes
+
+- Requires Node.js (`npx` comes with it).
+- No API key needed for search and install.
+- Login (`npx --yes clawhub@latest login`) is only required for publishing.
+- `--workdir ~/.nanobot/workspace` is critical — without it, skills install to the current directory instead of the nanobot workspace.
+- After install, remind the user to start a new session to load the skill.

nanobot/skills/cron/SKILL.md

@@ -30,6 +30,11 @@ One-time scheduled task (compute ISO datetime from current time):
 cron(action="add", message="Remind me about the meeting", at="<ISO datetime>")
 ```
 
+Timezone-aware cron:
+```
+cron(action="add", message="Morning standup", cron_expr="0 9 * * 1-5", tz="America/Vancouver")
+```
+
 List/remove:
 ```
 cron(action="list")
@@ -44,4 +49,9 @@ cron(action="remove", job_id="abc123")
 | every hour | every_seconds: 3600 |
 | every day at 8am | cron_expr: "0 8 * * *" |
 | weekdays at 5pm | cron_expr: "0 17 * * 1-5" |
+| 9am Vancouver time daily | cron_expr: "0 9 * * *", tz: "America/Vancouver" |
 | at a specific time | at: ISO datetime string (compute from current time) |
+
+## Timezone
+
+Use `tz` with `cron_expr` to schedule in a specific IANA timezone. Without `tz`, the server's local timezone is used.