---
summary: "Multi-agent routing: isolated agents, channel accounts, and bindings"
title: "Multi-agent routing"
sidebarTitle: "Multi-agent routing"
read_when: "You want multiple isolated agents (workspaces + auth) in one gateway process."
status: active
---

Run multiple _isolated_ agents — each with its own workspace, state directory (`agentDir`), and session history — plus multiple channel accounts (e.g. two WhatsApps) in one running Gateway. Inbound messages are routed to the right agent through bindings.

An **agent** here is the full per-persona scope: workspace files, auth profiles, model registry, and session store. `agentDir` is the on-disk state directory that holds this per-agent config at `~/.nodmix/agents/<agentId>/`. A **binding** maps a channel account (e.g. a Slack workspace or a WhatsApp number) to one of those agents.

## What is "one agent"?

An **agent** is a fully scoped brain with its own:

- **Workspace** (files, AGENTS.md/SOUL.md/USER.md, local notes, persona rules).
- **State directory** (`agentDir`) for auth profiles, model registry, and per-agent config.
- **Session store** (chat history + routing state) under `~/.nodmix/agents/<agentId>/sessions`.

Auth profiles are **per-agent**. Each agent reads from its own:

```text
~/.nodmix/agents/<agentId>/agent/auth-profiles.json
```

<Note>
`sessions_history` is the safer cross-session recall path here too: it returns a bounded, sanitized view, not a raw transcript dump. Assistant recall strips thinking tags, `<relevant-memories>` scaffolding, plain-text tool-call XML payloads (including `<tool_call>...</tool_call>`, `<function_call>...</function_call>`, `<tool_calls>...</tool_calls>`, `<function_calls>...</function_calls>`, and truncated tool-call blocks), downgraded tool-call scaffolding, leaked ASCII/full-width model control tokens, and malformed MiniMax tool-call XML before redaction/truncation.
</Note>

<Warning>
Never reuse `agentDir` across agents (it causes auth/session collisions). Agents
can read through to the default/main agent's auth profiles when they do not have
a local profile, but Nodmix does not clone OAuth refresh tokens into the
secondary agent store. If you want an independent OAuth account, sign in from
that agent; if you copy credentials manually, copy only portable static
`api_key` or `token` profiles.
</Warning>

Skills are loaded from each agent workspace plus shared roots such as `~/.nodmix/skills`, then filtered by the effective agent skill allowlist when configured. Use `agents.defaults.skills` for a shared baseline and `agents.list[].skills` for per-agent replacement. See [Skills: per-agent vs shared](/tools/skills#per-agent-vs-shared-skills) and [Skills: agent skill allowlists](/tools/skills#agent-skill-allowlists).

The Gateway can host **one agent** (default) or **many agents** side-by-side.

<Note>
**Workspace note:** each agent's workspace is the **default cwd**, not a hard sandbox. Relative paths resolve inside the workspace, but absolute paths can reach other host locations unless sandboxing is enabled. See [Sandboxing](/gateway/sandboxing).
</Note>

## Paths (quick map)

- Config: `~/.nodmix/nodmix.json` (or `NODMIX_CONFIG_PATH`)
- State dir: `~/.nodmix` (or `NODMIX_STATE_DIR`)
- Workspace: `~/.nodmix/workspace` (or `~/.nodmix/workspace-<agentId>`)
- Agent dir: `~/.nodmix/agents/<agentId>/agent` (or `agents.list[].agentDir`)
- Sessions: `~/.nodmix/agents/<agentId>/sessions`

### Single-agent mode (default)

If you do nothing, Nodmix runs a single agent:

- `agentId` defaults to **`main`**.
- Sessions are keyed as `agent:main:<mainKey>`.
- Workspace defaults to `~/.nodmix/workspace` (or `~/.nodmix/workspace-<profile>` when `NODMIX_PROFILE` is set).
- State defaults to `~/.nodmix/agents/main/agent`.

## Agent helper

Use the agent wizard to add a new isolated agent:

```bash
nodmix agents add work
```

Then add `bindings` (or let the wizard do it) to route inbound messages.

Verify with:

```bash
nodmix agents list --bindings
```

## Quick start

<Steps>
  <Step title="Create each agent workspace">
    Use the wizard or create workspaces manually:

    ```bash
    nodmix agents add coding
    nodmix agents add social
    ```

    Each agent gets its own workspace with `SOUL.md`, `AGENTS.md`, and optional `USER.md`, plus a dedicated `agentDir` and session store under `~/.nodmix/agents/<agentId>`.

  </Step>
  <Step title="Create channel accounts">
    Create one account per agent on your preferred channels:

    - Discord: one bot per agent, enable Message Content Intent, copy each token.
    - Telegram: one bot per agent via BotFather, copy each token.
    - WhatsApp: link each phone number per account.

    ```bash
    nodmix channels login --channel whatsapp --account work
    ```

    See channel guides: [Discord](/channels/discord), [Telegram](/channels/telegram), [WhatsApp](/channels/whatsapp).

  </Step>
  <Step title="Add agents, accounts, and bindings">
    Add agents under `agents.list`, channel accounts under `channels.<channel>.accounts`, and connect them with `bindings` (examples below).
  </Step>
  <Step title="Restart and verify">
    ```bash
    nodmix gateway restart
    nodmix agents list --bindings
    nodmix channels status --probe
    ```
  </Step>
</Steps>

## Multiple agents = multiple people, multiple personalities

With **multiple agents**, each `agentId` becomes a **fully isolated persona**:

- **Different phone numbers/accounts** (per channel `accountId`).
- **Different personalities** (per-agent workspace files like `AGENTS.md` and `SOUL.md`).
- **Separate auth + sessions** (no cross-talk unless explicitly enabled).

This lets **multiple people** share one Gateway server while keeping their AI "brains" and data isolated.

## Cross-agent QMD memory search

If one agent should search another agent's QMD session transcripts, add extra collections under `agents.list[].memorySearch.qmd.extraCollections`. Use `agents.defaults.memorySearch.qmd.extraCollections` only when every agent should inherit the same shared transcript collections.

```json5
{
  agents: {
    defaults: {
      workspace: "~/workspaces/main",
      memorySearch: {
        qmd: {
          extraCollections: [{ path: "~/agents/family/sessions", name: "family-sessions" }],
        },
      },
    },
    list: [
      {
        id: "main",
        workspace: "~/workspaces/main",
        memorySearch: {
          qmd: {
            extraCollections: [{ path: "notes" }], // resolves inside workspace -> collection named "notes-main"
          },
        },
      },
      { id: "family", workspace: "~/workspaces/family" },
    ],
  },
  memory: {
    backend: "qmd",
    qmd: { includeDefaultMemory: false },
  },
}
```

The extra collection path can be shared across agents, but the collection name stays explicit when the path is outside the agent workspace. Paths inside the workspace remain agent-scoped so each agent keeps its own transcript search set.

## One WhatsApp number, multiple people (DM split)

You can route **different WhatsApp DMs** to different agents while staying on **one WhatsApp account**. Match on sender E.164 (like `+15551234567`) with `peer.kind: "direct"`. Replies still come from the same WhatsApp number (no per-agent sender identity).

<Note>
Direct chats collapse to the agent's **main session key**, so true isolation requires **one agent per person**.
</Note>

Example:

```json5
{
  agents: {
    list: [
      { id: "alex", workspace: "~/.nodmix/workspace-alex" },
      { id: "mia", workspace: "~/.nodmix/workspace-mia" },
    ],
  },
  bindings: [
    {
      agentId: "alex",
      match: { channel: "whatsapp", peer: { kind: "direct", id: "+15551230001" } },
    },
    {
      agentId: "mia",
      match: { channel: "whatsapp", peer: { kind: "direct", id: "+15551230002" } },
    },
  ],
  channels: {
    whatsapp: {
      dmPolicy: "allowlist",
      allowFrom: ["+15551230001", "+15551230002"],
    },
  },
}
```

Notes:

- DM access control is **global per WhatsApp account** (pairing/allowlist), not per agent.
- For shared groups, bind the group to one agent or use [Broadcast groups](/channels/broadcast-groups).

## Routing rules (how messages pick an agent)

Bindings are **deterministic** and **most-specific wins**:

<Steps>
  <Step title="peer match">
    Exact DM/group/channel id.
  </Step>
  <Step title="parentPeer match">
    Thread inheritance.
  </Step>
  <Step title="guildId + roles">
    Discord role routing.
  </Step>
  <Step title="guildId">
    Discord.
  </Step>
  <Step title="teamId">
    Slack.
  </Step>
  <Step title="accountId match for a channel">
    Per-account fallback.
  </Step>
  <Step title="Channel-level match">
    `accountId: "*"`.
  </Step>
  <Step title="Default agent">
    Fallback to `agents.list[].default`, else first list entry, default: `main`.
  </Step>
</Steps>

<AccordionGroup>
  <Accordion title="Tie-breaking and AND semantics">
    - If multiple bindings match in the same tier, the first one in config order wins.
    - If a binding sets multiple match fields (for example `peer` + `guildId`), all specified fields are required (`AND` semantics).

  </Accordion>
  <Accordion title="Account-scope detail">
    - A binding that omits `accountId` matches the default account only. It does not match all accounts.
    - Use `accountId: "*"` for a channel-wide fallback across all accounts.
    - Use `accountId: "<name>"` to match one account.
    - If you later add the same binding for the same agent with an explicit account id, Nodmix upgrades the existing channel-only binding to account-scoped instead of duplicating it.

  </Accordion>
</AccordionGroup>

## Multiple accounts / phone numbers

Channels that support **multiple accounts** (e.g. WhatsApp) use `accountId` to identify each login. Each `accountId` can be routed to a different agent, so one server can host multiple phone numbers without mixing sessions.

If you want a channel-wide default account when `accountId` is omitted, set `channels.<channel>.defaultAccount` (optional). When unset, Nodmix falls back to `default` if present, otherwise the first configured account id (sorted).

Common channels supporting this pattern include:

- `whatsapp`, `telegram`, `discord`, `slack`, `signal`, `imessage`
- `irc`, `line`, `googlechat`, `mattermost`, `matrix`, `nextcloud-talk`
- `zalo`, `zalouser`, `nostr`, `feishu`

## Concepts

- `agentId`: one "brain" (workspace, per-agent auth, per-agent session store).
- `accountId`: one channel account instance (e.g. WhatsApp account `"personal"` vs `"biz"`).
- `binding`: routes inbound messages to an `agentId` by `(channel, accountId, peer)` and optionally guild/team ids.
- Direct chats collapse to `agent:<agentId>:<mainKey>` (per-agent "main"; `session.mainKey`).

## Platform examples

<AccordionGroup>
  <Accordion title="Discord bots per agent">
    Each Discord bot account maps to a unique `accountId`. Bind each account to an agent and keep allowlists per bot.

    ```json5
    {
      agents: {
        list: [
          { id: "main", workspace: "~/.nodmix/workspace-main" },
          { id: "coding", workspace: "~/.nodmix/workspace-coding" },
        ],
      },
      bindings: [
        { agentId: "main", match: { channel: "discord", accountId: "default" } },
        { agentId: "coding", match: { channel: "discord", accountId: "coding" } },
      ],
      channels: {
        discord: {
          groupPolicy: "allowlist",
          accounts: {
            default: {
              token: "DISCORD_BOT_TOKEN_MAIN",
              guilds: {
                "123456789012345678": {
                  channels: {
                    "222222222222222222": { allow: true, requireMention: false },
                  },
                },
              },
            },
            coding: {
              token: "DISCORD_BOT_TOKEN_CODING",
              guilds: {
                "123456789012345678": {
                  channels: {
                    "333333333333333333": { allow: true, requireMention: false },
                  },
                },
              },
            },
          },
        },
      },
    }
    ```

    - Invite each bot to the guild and enable Message Content Intent.
    - Tokens live in `channels.discord.accounts.<id>.token` (default account can use `DISCORD_BOT_TOKEN`).

  </Accordion>
  <Accordion title="Telegram bots per agent">
    ```json5
    {
      agents: {
        list: [
          { id: "main", workspace: "~/.nodmix/workspace-main" },
          { id: "alerts", workspace: "~/.nodmix/workspace-alerts" },
        ],
      },
      bindings: [
        { agentId: "main", match: { channel: "telegram", accountId: "default" } },
        { agentId: "alerts", match: { channel: "telegram", accountId: "alerts" } },
      ],
      channels: {
        telegram: {
          accounts: {
            default: {
              botToken: "123456:ABC...",
              dmPolicy: "pairing",
            },
            alerts: {
              botToken: "987654:XYZ...",
              dmPolicy: "allowlist",
              allowFrom: ["tg:123456789"],
            },
          },
        },
      },
    }
    ```

    - Create one bot per agent with BotFather and copy each token.
    - Tokens live in `channels.telegram.accounts.<id>.botToken` (default account can use `TELEGRAM_BOT_TOKEN`).
    - For multiple bots in the same Telegram group, invite each bot and mention the bot that should answer.
    - Disable BotFather Privacy Mode for each group bot, then re-add the bot so Telegram applies the setting.
    - Allow groups with `channels.telegram.groups`, or use `groupPolicy: "open"` only for trusted group deployments.
    - Put sender user IDs in `groupAllowFrom`. Group and supergroup IDs belong in `channels.telegram.groups`, not `groupAllowFrom`.
    - Bind by `accountId` so each bot routes to its own agent.

  </Accordion>
  <Accordion title="WhatsApp numbers per agent">
    Link each account before starting the gateway:

    ```bash
    nodmix channels login --channel whatsapp --account personal
    nodmix channels login --channel whatsapp --account biz
    ```

    `~/.nodmix/nodmix.json` (JSON5):

    ```js
    {
      agents: {
        list: [
          {
            id: "home",
            default: true,
            name: "Home",
            workspace: "~/.nodmix/workspace-home",
            agentDir: "~/.nodmix/agents/home/agent",
          },
          {
            id: "work",
            name: "Work",
            workspace: "~/.nodmix/workspace-work",
            agentDir: "~/.nodmix/agents/work/agent",
          },
        ],
      },

      // Deterministic routing: first match wins (most-specific first).
      bindings: [
        { agentId: "home", match: { channel: "whatsapp", accountId: "personal" } },
        { agentId: "work", match: { channel: "whatsapp", accountId: "biz" } },

        // Optional per-peer override (example: send a specific group to work agent).
        {
          agentId: "work",
          match: {
            channel: "whatsapp",
            accountId: "personal",
            peer: { kind: "group", id: "1203630...@g.us" },
          },
        },
      ],

      // Off by default: agent-to-agent messaging must be explicitly enabled + allowlisted.
      tools: {
        agentToAgent: {
          enabled: false,
          allow: ["home", "work"],
        },
      },

      channels: {
        whatsapp: {
          accounts: {
            personal: {
              // Optional override. Default: ~/.nodmix/credentials/whatsapp/personal
              // authDir: "~/.nodmix/credentials/whatsapp/personal",
            },
            biz: {
              // Optional override. Default: ~/.nodmix/credentials/whatsapp/biz
              // authDir: "~/.nodmix/credentials/whatsapp/biz",
            },
          },
        },
      },
    }
    ```

  </Accordion>
</AccordionGroup>

## Common patterns

<Tabs>
  <Tab title="WhatsApp daily + Telegram deep work">
    Split by channel: route WhatsApp to a fast everyday agent and Telegram to an Opus agent.

    ```json5
    {
      agents: {
        list: [
          {
            id: "chat",
            name: "Everyday",
            workspace: "~/.nodmix/workspace-chat",
            model: "anthropic/claude-sonnet-4-6",
          },
          {
            id: "opus",
            name: "Deep Work",
            workspace: "~/.nodmix/workspace-opus",
            model: "anthropic/claude-opus-4-6",
          },
        ],
      },
      bindings: [
        { agentId: "chat", match: { channel: "whatsapp", accountId: "*" } },
        { agentId: "opus", match: { channel: "telegram", accountId: "*" } },
      ],
    }
    ```

    Notes:

    - These examples use `accountId: "*"` so the bindings keep working if you add accounts later.
    - To route a single DM/group to Opus while keeping the rest on chat, add a `match.peer` binding for that peer; peer matches always win over channel-wide rules.

  </Tab>
  <Tab title="Same channel, one peer to Opus">
    Keep WhatsApp on the fast agent, but route one DM to Opus:

    ```json5
    {
      agents: {
        list: [
          {
            id: "chat",
            name: "Everyday",
            workspace: "~/.nodmix/workspace-chat",
            model: "anthropic/claude-sonnet-4-6",
          },
          {
            id: "opus",
            name: "Deep Work",
            workspace: "~/.nodmix/workspace-opus",
            model: "anthropic/claude-opus-4-6",
          },
        ],
      },
      bindings: [
        {
          agentId: "opus",
          match: { channel: "whatsapp", accountId: "*", peer: { kind: "direct", id: "+15551234567" } },
        },
        { agentId: "chat", match: { channel: "whatsapp", accountId: "*" } },
      ],
    }
    ```

    Peer bindings always win, so keep them above the channel-wide rule.

  </Tab>
  <Tab title="Family agent bound to a WhatsApp group">
    Bind a dedicated family agent to a single WhatsApp group, with mention gating and a tighter tool policy:

    ```json5
    {
      agents: {
        list: [
          {
            id: "family",
            name: "Family",
            workspace: "~/.nodmix/workspace-family",
            identity: { name: "Family Bot" },
            groupChat: {
              mentionPatterns: ["@family", "@familybot", "@Family Bot"],
            },
            sandbox: {
              mode: "all",
              scope: "agent",
            },
            tools: {
              allow: [
                "exec",
                "read",
                "sessions_list",
                "sessions_history",
                "sessions_send",
                "sessions_spawn",
                "session_status",
              ],
              deny: ["write", "edit", "apply_patch", "browser", "canvas", "nodes", "cron"],
            },
          },
        ],
      },
      bindings: [
        {
          agentId: "family",
          match: {
            channel: "whatsapp",
            peer: { kind: "group", id: "120363999999999999@g.us" },
          },
        },
      ],
    }
    ```

    Notes:

    - Tool allow/deny lists are **tools**, not skills. If a skill needs to run a binary, ensure `exec` is allowed and the binary exists in the sandbox.
    - For stricter gating, set `agents.list[].groupChat.mentionPatterns` and keep group allowlists enabled for the channel.

  </Tab>
</Tabs>

## Per-agent sandbox and tool configuration

Each agent can have its own sandbox and tool restrictions:

```js
{
  agents: {
    list: [
      {
        id: "personal",
        workspace: "~/.nodmix/workspace-personal",
        sandbox: {
          mode: "off",  // No sandbox for personal agent
        },
        // No tool restrictions - all tools available
      },
      {
        id: "family",
        workspace: "~/.nodmix/workspace-family",
        sandbox: {
          mode: "all",     // Always sandboxed
          scope: "agent",  // One container per agent
          docker: {
            // Optional one-time setup after container creation
            setupCommand: "apt-get update && apt-get install -y git curl",
          },
        },
        tools: {
          allow: ["read"],                    // Only read tool
          deny: ["exec", "write", "edit", "apply_patch"],    // Deny others
        },
      },
    ],
  },
}
```

<Note>
`setupCommand` lives under `sandbox.docker` and runs once on container creation. Per-agent `sandbox.docker.*` overrides are ignored when the resolved scope is `"shared"`.
</Note>

**Benefits:**

- **Security isolation**: restrict tools for untrusted agents.
- **Resource control**: sandbox specific agents while keeping others on host.
- **Flexible policies**: different permissions per agent.

<Note>
`tools.elevated` is **global** and sender-based; it is not configurable per agent. If you need per-agent boundaries, use `agents.list[].tools` to deny `exec`. For group targeting, use `agents.list[].groupChat.mentionPatterns` so @mentions map cleanly to the intended agent.
</Note>

See [Multi-agent sandbox and tools](/tools/multi-agent-sandbox-tools) for detailed examples.

## Related

- [ACP agents](/tools/acp-agents) — running external coding harnesses
- [Channel routing](/channels/channel-routing) — how messages route to agents
- [Presence](/concepts/presence) — agent presence and availability
- [Session](/concepts/session) — session isolation and routing
- [Sub-agents](/tools/subagents) — spawning background agent runs
