WhatsApp

WhatsApp (Web channel)

Status: production-ready via WhatsApp Web (Baileys). Gateway owns linked session(s).

Default DM policy is pairing for unknown senders. Cross-channel diagnostics and repair playbooks. Full channel config patterns and examples.

Quick setup

{
  channels: {
    whatsapp: {
      dmPolicy: "pairing",
      allowFrom: ["+15551234567"],
      groupPolicy: "allowlist",
      groupAllowFrom: ["+15551234567"],
    },
  },
}

coderclaw channels login --channel whatsapp

For a specific account:

coderclaw channels login --channel whatsapp --account work

coderclaw gateway

coderclaw pairing list whatsapp
coderclaw pairing approve whatsapp <CODE>

Pairing requests expire after 1 hour. Pending requests are capped at 3 per channel.

CoderClaw recommends running WhatsApp on a separate number when possible. (The channel metadata and onboarding flow are optimized for that setup, but personal-number setups are also supported.)

Deployment patterns

This is the cleanest operational mode:

- separate WhatsApp identity for CoderClaw
- clearer DM allowlists and routing boundaries
- lower chance of self-chat confusion

Minimal policy pattern:

```json5
{
  channels: {
    whatsapp: {
      dmPolicy: "allowlist",
      allowFrom: ["+15551234567"],
    },
  },
}
```

Onboarding supports personal-number mode and writes a self-chat-friendly baseline:

- `dmPolicy: "allowlist"`
- `allowFrom` includes your personal number
- `selfChatMode: true`

In runtime, self-chat protections key off the linked self number and `allowFrom`.

The messaging platform channel is WhatsApp Web-based (`Baileys`) in current CoderClaw channel architecture.

There is no separate Twilio WhatsApp messaging channel in the built-in chat-channel registry.

Runtime model

• Gateway owns the WhatsApp socket and reconnect loop.
• Outbound sends require an active WhatsApp listener for the target account.
• Status and broadcast chats are ignored (@status, @broadcast).
• Direct chats use DM session rules (session.dmScope; default main collapses DMs to the agent main session).
• Group sessions are isolated (agent:<agentId>:whatsapp:group:<jid>).

Access control and activation

`channels.whatsapp.dmPolicy` controls direct chat access:

- `pairing` (default)
- `allowlist`
- `open` (requires `allowFrom` to include `"*"`)
- `disabled`

`allowFrom` accepts E.164-style numbers (normalized internally).

Multi-account override: `channels.whatsapp.accounts.<id>.dmPolicy` (and `allowFrom`) take precedence over channel-level defaults for that account.

Runtime behavior details:

- pairings are persisted in channel allow-store and merged with configured `allowFrom`
- if no allowlist is configured, the linked self number is allowed by default
- outbound `fromMe` DMs are never auto-paired

Group access has two layers:

1. **Group membership allowlist** (`channels.whatsapp.groups`)
   - if `groups` is omitted, all groups are eligible
   - if `groups` is present, it acts as a group allowlist (`"*"` allowed)

2. **Group sender policy** (`channels.whatsapp.groupPolicy` + `groupAllowFrom`)
   - `open`: sender allowlist bypassed
   - `allowlist`: sender must match `groupAllowFrom` (or `*`)
   - `disabled`: block all group inbound

Sender allowlist fallback:

- if `groupAllowFrom` is unset, runtime falls back to `allowFrom` when available

Note: if no `channels.whatsapp` block exists at all, runtime group-policy fallback is effectively `open`.

Group replies require mention by default.

Mention detection includes:

- explicit WhatsApp mentions of the bot identity
- configured mention regex patterns (`agents.list[].groupChat.mentionPatterns`, fallback `messages.groupChat.mentionPatterns`)
- implicit reply-to-bot detection (reply sender matches bot identity)

Session-level activation command:

- `/activation mention`
- `/activation always`

`activation` updates session state (not global config). It is owner-gated.

Personal-number and self-chat behavior

When the linked self number is also present in allowFrom, WhatsApp self-chat safeguards activate:

• skip read receipts for self-chat turns
• ignore mention-JID auto-trigger behavior that would otherwise ping yourself
• if messages.responsePrefix is unset, self-chat replies default to [{identity.name}] or [coderclaw]

Message normalization and context

Incoming WhatsApp messages are wrapped in the shared inbound envelope.

If a quoted reply exists, context is appended in this form:

```text
[Replying to <sender> id:<stanzaId>]
<quoted body or media placeholder>
[/Replying]
```

Reply metadata fields are also populated when available (`ReplyToId`, `ReplyToBody`, `ReplyToSender`, sender JID/E.164).

Media-only inbound messages are normalized with placeholders such as:

- `<media:image>`
- `<media:video>`
- `<media:audio>`
- `<media:document>`
- `<media:sticker>`

Location and contact payloads are normalized into textual context before routing.

For groups, unprocessed messages can be buffered and injected as context when the bot is finally triggered.

- default limit: `50`
- config: `channels.whatsapp.historyLimit`
- fallback: `messages.groupChat.historyLimit`
- `0` disables

Injection markers:

- `[Chat messages since your last reply - for context]`
- `[Current message - respond to this]`

Read receipts are enabled by default for accepted inbound WhatsApp messages.

Disable globally:

```json5
{
  channels: {
    whatsapp: {
      sendReadReceipts: false,
    },
  },
}
```

Per-account override:

```json5
{
  channels: {
    whatsapp: {
      accounts: {
        work: {
          sendReadReceipts: false,
        },
      },
    },
  },
}
```

Self-chat turns skip read receipts even when globally enabled.

Delivery, chunking, and media

- default chunk limit: `channels.whatsapp.textChunkLimit = 4000` - `channels.whatsapp.chunkMode = "length" | "newline"` - `newline` mode prefers paragraph boundaries (blank lines), then falls back to length-safe chunking - supports image, video, audio (PTT voice-note), and document payloads - `audio/ogg` is rewritten to `audio/ogg; codecs=opus` for voice-note compatibility - animated GIF playback is supported via `gifPlayback: true` on video sends - captions are applied to the first media item when sending multi-media reply payloads - media source can be HTTP(S), `file://`, or local paths - inbound media save cap: `channels.whatsapp.mediaMaxMb` (default `50`) - outbound media cap for auto-replies: `agents.defaults.mediaMaxMb` (default `5MB`) - images are auto-optimized (resize/quality sweep) to fit limits - on media send failure, first-item fallback sends text warning instead of dropping the response silently

Acknowledgment reactions

WhatsApp supports immediate ack reactions on inbound receipt via channels.whatsapp.ackReaction.

{
  channels: {
    whatsapp: {
      ackReaction: {
        emoji: "👀",
        direct: true,
        group: "mentions", // always | mentions | never
      },
    },
  },
}

Behavior notes:

• sent immediately after inbound is accepted (pre-reply)
• failures are logged but do not block normal reply delivery
• group mode mentions reacts on mention-triggered turns; group activation always acts as bypass for this check
• WhatsApp uses channels.whatsapp.ackReaction (legacy messages.ackReaction is not used here)

Multi-account and credentials

- account ids come from `channels.whatsapp.accounts` - default account selection: `default` if present, otherwise first configured account id (sorted) - account ids are normalized internally for lookup - current auth path: `~/.coderclaw/credentials/whatsapp//creds.json` - backup file: `creds.json.bak` - legacy default auth in `~/.coderclaw/credentials/` is still recognized/migrated for default-account flows `coderclaw channels logout --channel whatsapp [--account ]` clears WhatsApp auth state for that account.

In legacy auth directories, `oauth.json` is preserved while Baileys auth files are removed.

Tools, actions, and config writes

• Agent tool support includes WhatsApp reaction action (react).
• Action gates:
  • channels.whatsapp.actions.reactions
  • channels.whatsapp.actions.polls
• Channel-initiated config writes are enabled by default (disable via channels.whatsapp.configWrites=false).

Troubleshooting

Symptom: channel status reports not linked.

Fix:

```bash
coderclaw channels login --channel whatsapp
coderclaw channels status
```

Symptom: linked account with repeated disconnects or reconnect attempts.

Fix:

```bash
coderclaw doctor
coderclaw logs --follow
```

If needed, re-link with `channels login`.

Outbound sends fail fast when no active gateway listener exists for the target account.

Make sure gateway is running and the account is linked.

Check in this order:

- `groupPolicy`
- `groupAllowFrom` / `allowFrom`
- `groups` allowlist entries
- mention gating (`requireMention` + mention patterns)

WhatsApp gateway runtime should use Node. Bun is flagged as incompatible for stable WhatsApp/Telegram gateway operation.

Configuration reference pointers

Primary reference:

• Configuration reference - WhatsApp

High-signal WhatsApp fields:

• access: dmPolicy, allowFrom, groupPolicy, groupAllowFrom, groups
• delivery: textChunkLimit, chunkMode, mediaMaxMb, sendReadReceipts, ackReaction
• multi-account: accounts.<id>.enabled, accounts.<id>.authDir, account-level overrides
• operations: configWrites, debounceMs, web.enabled, web.heartbeatSeconds, web.reconnect.*
• session behavior: session.dmScope, historyLimit, dmHistoryLimit, dms.<id>.historyLimit

Related

• Pairing
• Channel routing
• Multi-agent routing
• Troubleshooting