---
summary: "Yuanbao bot overview, features, and configuration"
read_when:
  - You want to connect a Yuanbao bot
  - You are configuring the Yuanbao channel
title: Yuanbao
---

Tencent Yuanbao is Tencent's AI assistant platform. The Mnemo channel plugin
connects Yuanbao bots to Mnemo over WebSocket so they can interact with users
through direct messages and group chats.

**Status:** production-ready for bot DMs + group chats. WebSocket is the only supported connection mode.

---

## Quick start

> **Requires Mnemo 2026.4.10 or above.** Run `mnemo --version` to check. Upgrade with `mnemo update`.

<Steps>
  <Step title="Add the Yuanbao channel with your credentials">
  ```bash
  mnemo channels add --channel yuanbao --token "appKey:appSecret"
  ```
  The `--token` value uses colon-separated `appKey:appSecret` format. You can obtain these from the Yuanbao app by creating a robot in your application settings.
  </Step>

  <Step title="After setup completes, restart the gateway to apply the changes">
  ```bash
  mnemo gateway restart
  ```
  </Step>
</Steps>

### Interactive setup (alternative)

You can also use the interactive wizard:

```bash
mnemo channels login --channel yuanbao
```

Follow the prompts to enter your App ID and App Secret.

---

## Access control

### Direct messages

Configure `dmPolicy` to control who can DM the bot:

- `"pairing"` - unknown users receive a pairing code; approve via CLI
- `"allowlist"` - only users listed in `allowFrom` can chat
- `"open"` - allow all users (default)
- `"disabled"` - disable all DMs

**Approve a pairing request:**

```bash
mnemo pairing list yuanbao
mnemo pairing approve yuanbao <CODE>
```

### Group chats

**Mention requirement** (`channels.yuanbao.requireMention`):

- `true` - require @mention (default)
- `false` - respond without @mention

Replying to the bot's message in a group chat is treated as an implicit mention.

---

## Configuration examples

### Basic setup with open DM policy

```json5
{
  channels: {
    yuanbao: {
      appKey: "your_app_key",
      appSecret: "your_app_secret",
      dm: {
        policy: "open",
      },
    },
  },
}
```

### Restrict DMs to specific users

```json5
{
  channels: {
    yuanbao: {
      appKey: "your_app_key",
      appSecret: "your_app_secret",
      dm: {
        policy: "allowlist",
        allowFrom: ["user_id_1", "user_id_2"],
      },
    },
  },
}
```

### Disable @mention requirement in groups

```json5
{
  channels: {
    yuanbao: {
      requireMention: false,
    },
  },
}
```

### Optimize outbound message delivery

```json5
{
  channels: {
    yuanbao: {
      // Send each chunk immediately without buffering
      outboundQueueStrategy: "immediate",
    },
  },
}
```

### Tune merge-text strategy

```json5
{
  channels: {
    yuanbao: {
      outboundQueueStrategy: "merge-text",
      minChars: 2800, // buffer until this many chars
      maxChars: 3000, // force split above this limit
      idleMs: 5000, // auto-flush after idle timeout (ms)
    },
  },
}
```

---

## Common commands

| Command    | Description                 |
| ---------- | --------------------------- |
| `/help`    | Show available commands     |
| `/status`  | Show bot status             |
| `/new`     | Start a new session         |
| `/stop`    | Stop the current run        |
| `/restart` | Restart Mnemo            |
| `/compact` | Compact the session context |

> Yuanbao supports native slash-command menus. Commands are synced to the platform automatically when the gateway starts.

---

## Troubleshooting

### Bot does not respond in group chats

1. Ensure the bot is added to the group
2. Ensure you @mention the bot (required by default)
3. Check logs: `mnemo logs --follow`

### Bot does not receive messages

1. Ensure the bot is created and approved in the Yuanbao app
2. Ensure `appKey` and `appSecret` are correctly configured
3. Ensure the gateway is running: `mnemo gateway status`
4. Check logs: `mnemo logs --follow`

### Bot sends empty or fallback replies

1. Check if the AI model is returning valid content
2. The default fallback reply is: "暂时无法解答，你可以换个问题问问我哦"
3. Customize it via `channels.yuanbao.fallbackReply`

### App Secret leaked

1. Reset the App Secret in YuanBao APP
2. Update the value in your config
3. Restart the gateway: `mnemo gateway restart`

---

## Advanced configuration

### Multiple accounts

```json5
{
  channels: {
    yuanbao: {
      defaultAccount: "main",
      accounts: {
        main: {
          appKey: "key_xxx",
          appSecret: "secret_xxx",
          name: "Primary bot",
        },
        backup: {
          appKey: "key_yyy",
          appSecret: "secret_yyy",
          name: "Backup bot",
          enabled: false,
        },
      },
    },
  },
}
```

`defaultAccount` controls which account is used when outbound APIs do not specify an `accountId`.

### Message limits

- `maxChars` - single message max character count (default: `3000` chars)
- `mediaMaxMb` - media upload/download limit (default: `20` MB)
- `overflowPolicy` - behavior when message exceeds limit: `"split"` (default) or `"stop"`

### Streaming

Yuanbao supports block-level streaming output. When enabled, the bot sends text in chunks as it generates.

```json5
{
  channels: {
    yuanbao: {
      disableBlockStreaming: false, // block streaming enabled (default)
    },
  },
}
```

Set `disableBlockStreaming: true` to send the complete reply in one message.

### Group chat history context

Control how many historical messages are included in the AI context for group chats:

```json5
{
  channels: {
    yuanbao: {
      historyLimit: 100, // default: 100, set 0 to disable
    },
  },
}
```

### Reply-to mode

Control how the bot quotes messages when replying in group chats:

```json5
{
  channels: {
    yuanbao: {
      replyToMode: "first", // "off" | "first" | "all" (default: "first")
    },
  },
}
```

| Value     | Behavior                                                 |
| --------- | -------------------------------------------------------- |
| `"off"`   | No quote reply                                           |
| `"first"` | Quote only the first reply per inbound message (default) |
| `"all"`   | Quote every reply                                        |

### Markdown hint injection

By default, the bot injects instructions in the system prompt to prevent the AI model from wrapping the entire reply in markdown code blocks.

```json5
{
  channels: {
    yuanbao: {
      markdownHintEnabled: true, // default: true
    },
  },
}
```

### Debug mode

Enable unsanitized log output for specific bot IDs:

```json5
{
  channels: {
    yuanbao: {
      debugBotIds: ["bot_user_id_1", "bot_user_id_2"],
    },
  },
}
```

### Multi-agent routing

Use `bindings` to route Yuanbao DMs or groups to different agents.

```json5
{
  agents: {
    list: [
      { id: "main" },
      { id: "agent-a", workspace: "/home/user/agent-a" },
      { id: "agent-b", workspace: "/home/user/agent-b" },
    ],
  },
  bindings: [
    {
      agentId: "agent-a",
      match: {
        channel: "yuanbao",
        peer: { kind: "direct", id: "user_xxx" },
      },
    },
    {
      agentId: "agent-b",
      match: {
        channel: "yuanbao",
        peer: { kind: "group", id: "group_zzz" },
      },
    },
  ],
}
```

Routing fields:

- `match.channel`: `"yuanbao"`
- `match.peer.kind`: `"direct"` (DM) or `"group"` (group chat)
- `match.peer.id`: user ID or group code

---

## Configuration reference

Full configuration: [Gateway configuration](/gateway/configuration)

| Setting                                    | Description                                       | Default                                |
| ------------------------------------------ | ------------------------------------------------- | -------------------------------------- |
| `channels.yuanbao.enabled`                 | Enable/disable the channel                        | `true`                                 |
| `channels.yuanbao.defaultAccount`          | Default account for outbound routing              | `default`                              |
| `channels.yuanbao.accounts.<id>.appKey`    | App Key (used for signing and ticket generation)  | -                                      |
| `channels.yuanbao.accounts.<id>.appSecret` | App Secret (used for signing)                     | -                                      |
| `channels.yuanbao.accounts.<id>.token`     | Pre-signed token (skips automatic ticket signing) | -                                      |
| `channels.yuanbao.accounts.<id>.name`      | Account display name                              | -                                      |
| `channels.yuanbao.accounts.<id>.enabled`   | Enable/disable a specific account                 | `true`                                 |
| `channels.yuanbao.dm.policy`               | DM policy                                         | `open`                                 |
| `channels.yuanbao.dm.allowFrom`            | DM allowlist (user ID list)                       | -                                      |
| `channels.yuanbao.requireMention`          | Require @mention in groups                        | `true`                                 |
| `channels.yuanbao.overflowPolicy`          | Long message handling (`split` or `stop`)         | `split`                                |
| `channels.yuanbao.replyToMode`             | Group reply-to strategy (`off`, `first`, `all`)   | `first`                                |
| `channels.yuanbao.outboundQueueStrategy`   | Outbound strategy (`merge-text` or `immediate`)   | `merge-text`                           |
| `channels.yuanbao.minChars`                | Merge-text: min chars to trigger send             | `2800`                                 |
| `channels.yuanbao.maxChars`                | Merge-text: max chars per message                 | `3000`                                 |
| `channels.yuanbao.idleMs`                  | Merge-text: idle timeout before auto-flush (ms)   | `5000`                                 |
| `channels.yuanbao.mediaMaxMb`              | Media size limit (MB)                             | `20`                                   |
| `channels.yuanbao.historyLimit`            | Group chat history context entries                | `100`                                  |
| `channels.yuanbao.disableBlockStreaming`   | Disable block-level streaming output              | `false`                                |
| `channels.yuanbao.fallbackReply`           | Fallback reply when AI returns no content         | `暂时无法解答，你可以换个问题问问我哦` |
| `channels.yuanbao.markdownHintEnabled`     | Inject markdown anti-wrapping instructions        | `true`                                 |
| `channels.yuanbao.debugBotIds`             | Debug whitelist bot IDs (unsanitized logs)        | `[]`                                   |

---

## Supported message types

### Receive

- ✅ Text
- ✅ Images
- ✅ Files
- ✅ Audio / Voice
- ✅ Video
- ✅ Stickers / Custom emoji
- ✅ Custom elements (link cards, etc.)

### Send

- ✅ Text (with markdown support)
- ✅ Images
- ✅ Files
- ✅ Audio
- ✅ Video
- ✅ Stickers

### Threads and replies

- ✅ Quote replies (configurable via `replyToMode`)
- ❌ Thread replies (not supported by platform)

---

## Related

- [Channels Overview](/channels) - all supported channels
- [Pairing](/channels/pairing) - DM authentication and pairing flow
- [Groups](/channels/groups) - group chat behavior and mention gating
- [Channel Routing](/channels/channel-routing) - session routing for messages
- [Security](/gateway/security) - access model and hardening
