docs(channels): modernize imessage docs page (#14213)

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Seb Slight
2026-02-11 12:58:02 -05:00
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@@ -3,26 +3,46 @@ summary: "Legacy iMessage support via imsg (JSON-RPC over stdio). New setups sho
read_when:
- Setting up iMessage support
- Debugging iMessage send/receive
title: iMessage
title: "iMessage"
---
# iMessage (legacy: imsg)
> **Recommended:** Use [BlueBubbles](/channels/bluebubbles) for new iMessage setups.
>
> The `imsg` channel is a legacy external-CLI integration and may be removed in a future release.
<Warning>
For new iMessage deployments, use <a href="/channels/bluebubbles">BlueBubbles</a>.
Status: legacy external CLI integration. Gateway spawns `imsg rpc` (JSON-RPC over stdio).
The `imsg` integration is legacy and may be removed in a future release.
</Warning>
## Quick setup (beginner)
Status: legacy external CLI integration. Gateway spawns `imsg rpc` and communicates over JSON-RPC on stdio (no separate daemon/port).
1. Ensure Messages is signed in on this Mac.
2. Install `imsg`:
- `brew install steipete/tap/imsg`
3. Configure OpenClaw with `channels.imessage.cliPath` and `channels.imessage.dbPath`.
4. Start the gateway and approve any macOS prompts (Automation + Full Disk Access).
<CardGroup cols={3}>
<Card title="BlueBubbles (recommended)" icon="message-circle" href="/channels/bluebubbles">
Preferred iMessage path for new setups.
</Card>
<Card title="Pairing" icon="link" href="/channels/pairing">
iMessage DMs default to pairing mode.
</Card>
<Card title="Configuration reference" icon="settings" href="/gateway/configuration-reference#imessage">
Full iMessage field reference.
</Card>
</CardGroup>
Minimal config:
## Quick setup
<Tabs>
<Tab title="Local Mac (fast path)">
<Steps>
<Step title="Install and verify imsg">
```bash
brew install steipete/tap/imsg
imsg rpc --help
```
</Step>
<Step title="Configure OpenClaw">
```json5
{
@@ -36,45 +56,65 @@ Minimal config:
}
```
## What it is
</Step>
- iMessage channel backed by `imsg` on macOS.
- Deterministic routing: replies always go back to iMessage.
- DMs share the agent's main session; groups are isolated (`agent:<agentId>:imessage:group:<chat_id>`).
- If a multi-participant thread arrives with `is_group=false`, you can still isolate it by `chat_id` using `channels.imessage.groups` (see “Group-ish threads” below).
<Step title="Start gateway">
## Config writes
```bash
openclaw gateway
```
By default, iMessage is allowed to write config updates triggered by `/config set|unset` (requires `commands.config: true`).
</Step>
Disable with:
<Step title="Approve first DM pairing (default dmPolicy)">
```bash
openclaw pairing list imessage
openclaw pairing approve imessage <CODE>
```
Pairing requests expire after 1 hour.
</Step>
</Steps>
</Tab>
<Tab title="Remote Mac over SSH">
OpenClaw only requires a stdio-compatible `cliPath`, so you can point `cliPath` at a wrapper script that SSHes to a remote Mac and runs `imsg`.
```bash
#!/usr/bin/env bash
exec ssh -T gateway-host imsg "$@"
```
Recommended config when attachments are enabled:
```json5
{
channels: { imessage: { configWrites: false } },
channels: {
imessage: {
enabled: true,
cliPath: "~/.openclaw/scripts/imsg-ssh",
remoteHost: "user@gateway-host", // used for SCP attachment fetches
includeAttachments: true,
},
},
}
```
## Requirements
If `remoteHost` is not set, OpenClaw attempts to auto-detect it by parsing the SSH wrapper script.
- macOS with Messages signed in.
- Full Disk Access for OpenClaw + `imsg` (Messages DB access).
- Automation permission when sending.
- `channels.imessage.cliPath` can point to any command that proxies stdin/stdout (for example, a wrapper script that SSHes to another Mac and runs `imsg rpc`).
</Tab>
</Tabs>
## Troubleshooting macOS Privacy and Security TCC
## Requirements and permissions (macOS)
If sending/receiving fails (for example, `imsg rpc` exits non-zero, times out, or the gateway appears to hang), a common cause is a macOS permission prompt that was never approved.
- Messages must be signed in on the Mac running `imsg`.
- Full Disk Access is required for the process context running OpenClaw/`imsg` (Messages DB access).
- Automation permission is required to send messages through Messages.app.
macOS grants TCC permissions per app/process context. Approve prompts in the same context that runs `imsg` (for example, Terminal/iTerm, a LaunchAgent session, or an SSH-launched process).
Checklist:
- **Full Disk Access**: allow access for the process running OpenClaw (and any shell/SSH wrapper that executes `imsg`). This is required to read the Messages database (`chat.db`).
- **Automation → Messages**: allow the process running OpenClaw (and/or your terminal) to control **Messages.app** for outbound sends.
- **`imsg` CLI health**: verify `imsg` is installed and supports RPC (`imsg rpc --help`).
Tip: If OpenClaw is running headless (LaunchAgent/systemd/SSH) the macOS prompt can be easy to miss. Run a one-time interactive command in a GUI terminal to force the prompt, then retry:
<Tip>
Permissions are granted per process context. If gateway runs headless (LaunchAgent/SSH), run a one-time interactive command in that same context to trigger prompts:
```bash
imsg chats --limit 1
@@ -82,128 +122,87 @@ imsg chats --limit 1
imsg send <handle> "test"
```
Related macOS folder permissions (Desktop/Documents/Downloads): [/platforms/mac/permissions](/platforms/mac/permissions).
</Tip>
## Setup (fast path)
## Access control and routing
1. Ensure Messages is signed in on this Mac.
2. Configure iMessage and start the gateway.
<Tabs>
<Tab title="DM policy">
`channels.imessage.dmPolicy` controls direct messages:
### Dedicated bot macOS user (for isolated identity)
- `pairing` (default)
- `allowlist`
- `open` (requires `allowFrom` to include `"*"`)
- `disabled`
If you want the bot to send from a **separate iMessage identity** (and keep your personal Messages clean), use a dedicated Apple ID + a dedicated macOS user.
Allowlist field: `channels.imessage.allowFrom`.
1. Create a dedicated Apple ID (example: `my-cool-bot@icloud.com`).
- Apple may require a phone number for verification / 2FA.
2. Create a macOS user (example: `openclawhome`) and sign into it.
3. Open Messages in that macOS user and sign into iMessage using the bot Apple ID.
4. Enable Remote Login (System Settings → General → Sharing → Remote Login).
5. Install `imsg`:
- `brew install steipete/tap/imsg`
6. Set up SSH so `ssh <bot-macos-user>@localhost true` works without a password.
7. Point `channels.imessage.accounts.bot.cliPath` at an SSH wrapper that runs `imsg` as the bot user.
Allowlist entries can be handles or chat targets (`chat_id:*`, `chat_guid:*`, `chat_identifier:*`).
First-run note: sending/receiving may require GUI approvals (Automation + Full Disk Access) in the _bot macOS user_. If `imsg rpc` looks stuck or exits, log into that user (Screen Sharing helps), run a one-time `imsg chats --limit 1` / `imsg send ...`, approve prompts, then retry. See [Troubleshooting macOS Privacy and Security TCC](#troubleshooting-macos-privacy-and-security-tcc).
</Tab>
Example wrapper (`chmod +x`). Replace `<bot-macos-user>` with your actual macOS username:
<Tab title="Group policy + mentions">
`channels.imessage.groupPolicy` controls group handling:
```bash
#!/usr/bin/env bash
set -euo pipefail
- `allowlist` (default when configured)
- `open`
- `disabled`
# Run an interactive SSH once first to accept host keys:
# ssh <bot-macos-user>@localhost true
exec /usr/bin/ssh -o BatchMode=yes -o ConnectTimeout=5 -T <bot-macos-user>@localhost \
"/usr/local/bin/imsg" "$@"
```
Group sender allowlist: `channels.imessage.groupAllowFrom`.
Example config:
Runtime fallback: if `groupAllowFrom` is unset, iMessage group sender checks fall back to `allowFrom` when available.
```json5
{
channels: {
imessage: {
enabled: true,
accounts: {
bot: {
name: "Bot",
enabled: true,
cliPath: "/path/to/imsg-bot",
dbPath: "/Users/<bot-macos-user>/Library/Messages/chat.db",
},
},
},
},
}
```
Mention gating for groups:
For single-account setups, use flat options (`channels.imessage.cliPath`, `channels.imessage.dbPath`) instead of the `accounts` map.
- iMessage has no native mention metadata
- mention detection uses regex patterns (`agents.list[].groupChat.mentionPatterns`, fallback `messages.groupChat.mentionPatterns`)
- with no configured patterns, mention gating cannot be enforced
### Remote/SSH variant (optional)
Control commands from authorized senders can bypass mention gating in groups.
If you want iMessage on another Mac, set `channels.imessage.cliPath` to a wrapper that runs `imsg` on the remote macOS host over SSH. OpenClaw only needs stdio.
</Tab>
Example wrapper:
<Tab title="Sessions and deterministic replies">
- DMs use direct routing; groups use group routing.
- With default `session.dmScope=main`, iMessage DMs collapse into the agent main session.
- Group sessions are isolated (`agent:<agentId>:imessage:group:<chat_id>`).
- Replies route back to iMessage using originating channel/target metadata.
```bash
#!/usr/bin/env bash
exec ssh -T gateway-host imsg "$@"
```
Group-ish thread behavior:
**Remote attachments:** When `cliPath` points to a remote host via SSH, attachment paths in the Messages database reference files on the remote machine. OpenClaw can automatically fetch these over SCP by setting `channels.imessage.remoteHost`:
Some multi-participant iMessage threads can arrive with `is_group=false`.
If that `chat_id` is explicitly configured under `channels.imessage.groups`, OpenClaw treats it as group traffic (group gating + group session isolation).
```json5
{
channels: {
imessage: {
cliPath: "~/imsg-ssh", // SSH wrapper to remote Mac
remoteHost: "user@gateway-host", // for SCP file transfer
includeAttachments: true,
},
},
}
```
</Tab>
</Tabs>
If `remoteHost` is not set, OpenClaw attempts to auto-detect it by parsing the SSH command in your wrapper script. Explicit configuration is recommended for reliability.
## Deployment patterns
#### Remote Mac via Tailscale (example)
<AccordionGroup>
<Accordion title="Dedicated bot macOS user (separate iMessage identity)">
Use a dedicated Apple ID and macOS user so bot traffic is isolated from your personal Messages profile.
If the Gateway runs on a Linux host/VM but iMessage must run on a Mac, Tailscale is the simplest bridge: the Gateway talks to the Mac over the tailnet, runs `imsg` via SSH, and SCPs attachments back.
Typical flow:
Architecture:
1. Create/sign in a dedicated macOS user.
2. Sign into Messages with the bot Apple ID in that user.
3. Install `imsg` in that user.
4. Create SSH wrapper so OpenClaw can run `imsg` in that user context.
5. Point `channels.imessage.accounts.<id>.cliPath` and `.dbPath` to that user profile.
```mermaid
%%{init: {
'theme': 'base',
'themeVariables': {
'primaryColor': '#ffffff',
'primaryTextColor': '#000000',
'primaryBorderColor': '#000000',
'lineColor': '#000000',
'secondaryColor': '#f9f9fb',
'tertiaryColor': '#ffffff',
'clusterBkg': '#f9f9fb',
'clusterBorder': '#000000',
'nodeBorder': '#000000',
'mainBkg': '#ffffff',
'edgeLabelBackground': '#ffffff'
}
}}%%
flowchart TB
subgraph T[" "]
subgraph Tailscale[" "]
direction LR
Gateway["<b>Gateway host (Linux/VM)<br></b><br>openclaw gateway<br>channels.imessage.cliPath"]
Mac["<b>Mac with Messages + imsg<br></b><br>Messages signed in<br>Remote Login enabled"]
end
Gateway -- SSH (imsg rpc) --> Mac
Mac -- SCP (attachments) --> Gateway
direction BT
User["user@gateway-host"] -- "Tailscale tailnet (hostname or 100.x.y.z)" --> Gateway
end
```
First run may require GUI approvals (Automation + Full Disk Access) in that bot user session.
Concrete config example (Tailscale hostname):
</Accordion>
<Accordion title="Remote Mac over Tailscale (example)">
Common topology:
- gateway runs on Linux/VM
- iMessage + `imsg` runs on a Mac in your tailnet
- `cliPath` wrapper uses SSH to run `imsg`
- `remoteHost` enables SCP attachment fetches
Example:
```json5
{
@@ -219,122 +218,134 @@ Concrete config example (Tailscale hostname):
}
```
Example wrapper (`~/.openclaw/scripts/imsg-ssh`):
```bash
#!/usr/bin/env bash
exec ssh -T bot@mac-mini.tailnet-1234.ts.net imsg "$@"
```
Notes:
Use SSH keys so both SSH and SCP are non-interactive.
- Ensure the Mac is signed in to Messages, and Remote Login is enabled.
- Use SSH keys so `ssh bot@mac-mini.tailnet-1234.ts.net` works without prompts.
- `remoteHost` should match the SSH target so SCP can fetch attachments.
</Accordion>
Multi-account support: use `channels.imessage.accounts` with per-account config and optional `name`. See [`gateway/configuration`](/gateway/configuration#telegramaccounts--discordaccounts--slackaccounts--signalaccounts--imessageaccounts) for the shared pattern. Don't commit `~/.openclaw/openclaw.json` (it often contains tokens).
<Accordion title="Multi-account pattern">
iMessage supports per-account config under `channels.imessage.accounts`.
## Access control (DMs + groups)
Each account can override fields such as `cliPath`, `dbPath`, `allowFrom`, `groupPolicy`, `mediaMaxMb`, and history settings.
DMs:
</Accordion>
</AccordionGroup>
- Default: `channels.imessage.dmPolicy = "pairing"`.
- Unknown senders receive a pairing code; messages are ignored until approved (codes expire after 1 hour).
- Approve via:
- `openclaw pairing list imessage`
- `openclaw pairing approve imessage <CODE>`
- Pairing is the default token exchange for iMessage DMs. Details: [Pairing](/channels/pairing)
## Media, chunking, and delivery targets
Groups:
<AccordionGroup>
<Accordion title="Attachments and media">
- inbound attachment ingestion is optional: `channels.imessage.includeAttachments`
- remote attachment paths can be fetched via SCP when `remoteHost` is set
- outbound media size uses `channels.imessage.mediaMaxMb` (default 16 MB)
</Accordion>
- `channels.imessage.groupPolicy = open | allowlist | disabled`.
- `channels.imessage.groupAllowFrom` controls who can trigger in groups when `allowlist` is set.
- Mention gating uses `agents.list[].groupChat.mentionPatterns` (or `messages.groupChat.mentionPatterns`) because iMessage has no native mention metadata.
- Multi-agent override: set per-agent patterns on `agents.list[].groupChat.mentionPatterns`.
<Accordion title="Outbound chunking">
- text chunk limit: `channels.imessage.textChunkLimit` (default 4000)
- chunk mode: `channels.imessage.chunkMode`
- `length` (default)
- `newline` (paragraph-first splitting)
</Accordion>
## How it works (behavior)
<Accordion title="Addressing formats">
Preferred explicit targets:
- `imsg` streams message events; the gateway normalizes them into the shared channel envelope.
- Replies always route back to the same chat id or handle.
- `chat_id:123` (recommended for stable routing)
- `chat_guid:...`
- `chat_identifier:...`
## Group-ish threads (`is_group=false`)
Handle targets are also supported:
Some iMessage threads can have multiple participants but still arrive with `is_group=false` depending on how Messages stores the chat identifier.
- `imessage:+1555...`
- `sms:+1555...`
- `user@example.com`
If you explicitly configure a `chat_id` under `channels.imessage.groups`, OpenClaw treats that thread as a “group” for:
```bash
imsg chats --limit 20
```
- session isolation (separate `agent:<agentId>:imessage:group:<chat_id>` session key)
- group allowlisting / mention gating behavior
</Accordion>
</AccordionGroup>
Example:
## Config writes
iMessage allows channel-initiated config writes by default (for `/config set|unset` when `commands.config: true`).
Disable:
```json5
{
channels: {
imessage: {
groupPolicy: "allowlist",
groupAllowFrom: ["+15555550123"],
groups: {
"42": { requireMention: false },
},
configWrites: false,
},
},
}
```
This is useful when you want an isolated personality/model for a specific thread (see [Multi-agent routing](/concepts/multi-agent)). For filesystem isolation, see [Sandboxing](/gateway/sandboxing).
## Troubleshooting
## Media + limits
<AccordionGroup>
<Accordion title="imsg not found or RPC unsupported">
Validate the binary and RPC support:
- Optional attachment ingestion via `channels.imessage.includeAttachments`.
- Media cap via `channels.imessage.mediaMaxMb`.
## Limits
- Outbound text is chunked to `channels.imessage.textChunkLimit` (default 4000).
- Optional newline chunking: set `channels.imessage.chunkMode="newline"` to split on blank lines (paragraph boundaries) before length chunking.
- Media uploads are capped by `channels.imessage.mediaMaxMb` (default 16).
## Addressing / delivery targets
Prefer `chat_id` for stable routing:
- `chat_id:123` (preferred)
- `chat_guid:...`
- `chat_identifier:...`
- direct handles: `imessage:+1555` / `sms:+1555` / `user@example.com`
List chats:
```
imsg chats --limit 20
```bash
imsg rpc --help
openclaw channels status --probe
```
## Configuration reference (iMessage)
If probe reports RPC unsupported, update `imsg`.
Full configuration: [Configuration](/gateway/configuration)
</Accordion>
Provider options:
<Accordion title="DMs are ignored">
Check:
- `channels.imessage.enabled`: enable/disable channel startup.
- `channels.imessage.cliPath`: path to `imsg`.
- `channels.imessage.dbPath`: Messages DB path.
- `channels.imessage.remoteHost`: SSH host for SCP attachment transfer when `cliPath` points to a remote Mac (e.g., `user@gateway-host`). Auto-detected from SSH wrapper if not set.
- `channels.imessage.service`: `imessage | sms | auto`.
- `channels.imessage.region`: SMS region.
- `channels.imessage.dmPolicy`: `pairing | allowlist | open | disabled` (default: pairing).
- `channels.imessage.allowFrom`: DM allowlist (handles, emails, E.164 numbers, or `chat_id:*`). `open` requires `"*"`. iMessage has no usernames; use handles or chat targets.
- `channels.imessage.groupPolicy`: `open | allowlist | disabled` (default: allowlist).
- `channels.imessage.groupAllowFrom`: group sender allowlist.
- `channels.imessage.historyLimit` / `channels.imessage.accounts.*.historyLimit`: max group messages to include as context (0 disables).
- `channels.imessage.dmHistoryLimit`: DM history limit in user turns. Per-user overrides: `channels.imessage.dms["<handle>"].historyLimit`.
- `channels.imessage.groups`: per-group defaults + allowlist (use `"*"` for global defaults).
- `channels.imessage.includeAttachments`: ingest attachments into context.
- `channels.imessage.mediaMaxMb`: inbound/outbound media cap (MB).
- `channels.imessage.textChunkLimit`: outbound chunk size (chars).
- `channels.imessage.chunkMode`: `length` (default) or `newline` to split on blank lines (paragraph boundaries) before length chunking.
- `channels.imessage.dmPolicy`
- `channels.imessage.allowFrom`
- pairing approvals (`openclaw pairing list imessage`)
Related global options:
</Accordion>
- `agents.list[].groupChat.mentionPatterns` (or `messages.groupChat.mentionPatterns`).
- `messages.responsePrefix`.
<Accordion title="Group messages are ignored">
Check:
- `channels.imessage.groupPolicy`
- `channels.imessage.groupAllowFrom`
- `channels.imessage.groups` allowlist behavior
- mention pattern configuration (`agents.list[].groupChat.mentionPatterns`)
</Accordion>
<Accordion title="Remote attachments fail">
Check:
- `channels.imessage.remoteHost`
- SSH/SCP key auth from the gateway host
- remote path readability on the Mac running Messages
</Accordion>
<Accordion title="macOS permission prompts were missed">
Re-run in an interactive GUI terminal in the same user/session context and approve prompts:
```bash
imsg chats --limit 1
imsg send <handle> "test"
```
Confirm Full Disk Access + Automation are granted for the process context that runs OpenClaw/`imsg`.
</Accordion>
</AccordionGroup>
## Configuration reference pointers
- [Configuration reference - iMessage](/gateway/configuration-reference#imessage)
- [Gateway configuration](/gateway/configuration)
- [Pairing](/channels/pairing)
- [BlueBubbles](/channels/bluebubbles)