Sendblue Textme

TextMe

Overview

njerschow/textme is a local daemon that bridges inbound iMessages (via Sendblue) to a Claude Code session on the user's machine. Whitelisted phone numbers can text, send voice notes, send images, and drive Claude through filesystem operations, code execution, and cd-based directory navigation — turning the user's phone into a remote control for Claude on their laptop. This is the inbound counterpart to outbound notification patterns ([[sendblue-notify]]): textme is phone → Claude; sendblue-notify is Claude → phone.

When to Use This Skill

• Use when the user says "text Claude", "text my laptop", "drive Claude from my phone", "I want to send iMessages to Claude", or "let me code from my phone".
• Use when the user is heads-down away from their desk and wants to kick off, supervise, or interrupt a Claude session via SMS/iMessage.
• Use when setting up a long-running headless workstation that the user wants to remote-control while travelling or away from the keyboard.
• Pair with [[sendblue-notify]] for bidirectional flow — outbound completion pings + inbound commands on the same Sendblue account.
• Do not use for outbound-only "text me when X finishes" patterns. That is [[sendblue-notify]] and does not need a daemon.

Prerequisites

• macOS or Linux host that stays online (the daemon polls Sendblue continuously).
• Node.js 18+.
• An active Sendblue account with API credentials and a provisioned iMessage number — set up via [[sendblue-cli]] (sendblue setup, then sendblue show-keys to surface API key/secret).
• Claude Code installed and authenticated on the host (npm install -g @anthropic-ai/claude-code).
• Optional: an OpenAI API key for Whisper voice-note transcription.

How It Works

Step 1: Install the daemon

git clone https://github.com/njerschow/textme.git
cd textme/daemon
npm install
npm run build
mkdir -p ~/.config/claude-imessage

Step 2: Configure credentials and the whitelist

Create ~/.config/claude-imessage/config.json:

{
  "sendblue": {
    "apiKey": "YOUR_SENDBLUE_API_KEY",
    "apiSecret": "YOUR_SENDBLUE_API_SECRET",
    "phoneNumber": "+1SENDBLUE_NUMBER"
  },
  "whitelist": ["+1YOUR_PHONE"],
  "pollIntervalMs": 5000,
  "conversationWindowSize": 20
}

The whitelist is the only authorization gate between an inbound iMessage and code execution on the host. Treat it as a security boundary, not a UX preference. Add only phone numbers the user controls; never add a shared, work, or family number "just in case".

For voice transcription, optionally add to .env in the daemon directory:

OPENAI_API_KEY=sk-...

Step 3: Run the daemon

For a quick test run:

cd textme/daemon
npm start

For persistent operation (recommended once the user has verified behavior):

pm2 start dist/index.js --name textme
pm2 save
pm2 startup

Or, on macOS, install the launchd service:

./scripts/install-launchd.sh

Step 4: Drive Claude from iMessage

Once the daemon is running, an iMessage from a whitelisted number to the Sendblue phone number reaches Claude. Built-in commands:

Anything else is treated as a Claude prompt and routed to the active session.

Step 5: Verify before relying on it

Before using textme in unattended workflows, the user must:

1. Send status from the whitelisted phone — should get a directory + state reply.
2. Send a benign command (pwd, ls) and confirm output arrives.
3. Send something from a non-whitelisted number and confirm it is ignored, not echoed.
4. Pull the plug: kill the daemon and confirm messages stop being processed (no zombie process).

If any of these fail, do not enable launchd / pm2 auto-start.

Examples

Example 1: Initial setup walk-through

# 1. Make sure sendblue CLI is set up and creds work
sendblue whoami

# 2. Grab Sendblue API key & secret (these are NOT the CLI's bearer token)
sendblue show-keys

# 3. Clone + build the daemon
git clone https://github.com/njerschow/textme.git
cd textme/daemon && npm install && npm run build

# 4. Fill in ~/.config/claude-imessage/config.json with the values from step 2
#    and YOUR personal phone number as the only whitelist entry

# 5. Start, send "?" from your phone, confirm response
npm start

Example 2: Composing with sendblue-notify

Wire outbound completion pings via [[sendblue-notify]] and inbound control via textme — they share the same Sendblue account but solve opposite problems:

• Claude finishes a long task → texts user via [[sendblue-notify]] (Stop hook).
• User replies "look at the diff" → textme routes that into Claude → Claude responds back via Sendblue.

Example 3: Tail the daemon log

# pm2
pm2 logs textme

# Standalone
tail -f ~/.local/log/claude-imessage.log

Example 4: MCP-only alternative (no daemon)

If the user wants Sendblue messaging available to Claude Code as tools but does not want a polling daemon listening for inbound commands, they can register Sendblue as an MCP server instead:

claude mcp add sendblue_api \
  --env SENDBLUE_API_API_KEY=your-api-key \
  --env SENDBLUE_API_API_SECRET=your-api-secret \
  -- npx -y sendblue-api-mcp --client=claude-code --tools=all

This gives Claude outbound Sendblue tools inside a session but does not open the inbound phone-controls-Claude channel that textme provides. Pick textme when "text Claude from anywhere" is the goal; pick MCP when Claude only needs to send.

Best Practices

• ✅ Whitelist exactly one phone number to start. The whitelist is the security boundary; expand it slowly and only to numbers the user controls.
• ✅ Run the daemon as a regular user, never as root or via sudo.
• ✅ Start in a sandbox directory for first tests (cd ~/textme-sandbox), not in ~ or a real repo.
• ✅ Verify the non-whitelist ignore path before enabling auto-start. A daemon that processes any sender is an open shell on the host.
• ✅ Keep pollIntervalMs ≥ 5000 unless the user understands the Sendblue rate limits and cost implications.
• ❌ Don't share the Sendblue number publicly. Even with a whitelist, the host is doing per-message work; a flood from an unknown sender still costs polling cycles.
• ❌ Don't store config.json in a repo, dotfiles backup, or cloud sync — it contains API credentials and the user's phone number.
• ❌ Don't run the daemon on a shared machine without considering what every other user of that machine can now reach by sending an SMS.

Limitations

• Outbound-only flows do not need this skill. For "text me when X finishes" use [[sendblue-notify]]; running a daemon is overkill.
• Voice transcription requires a separate OpenAI API key. Without it, voice notes are dropped or surfaced as un-transcribed audio depending on daemon version.
• The daemon polls on an interval — there is no push delivery. Expect single-digit-second latency between message receipt and Claude response.
• One conversation, one machine. This is a per-host daemon, not a multi-tenant service. Two daemons sharing one Sendblue number will both try to handle every inbound message.
• Sendblue free-plan verification still applies. The user's phone must have texted the Sendblue number once before outbound responses from Claude reach the user (see [[sendblue-cli]] limitations).

Security & Safety Notes

textme is a remote code execution surface gated only by a phone-number whitelist. Treat it accordingly.

• Whitelist is the security boundary. Anyone who can spoof or hijack a whitelisted number can drive Claude on the host. Be deliberate about which numbers go on the list and remove them when they no longer need access.
• Sendblue API credentials are sensitive. config.json contains an API key, API secret, and the user's phone number. Mode it 600, keep it out of dotfile repos, and never paste it into shared logs, gists, or screenshots.
• The daemon inherits the user's privileges. It can read, write, and execute anything the running user can. Do not run as root, do not run from a directory with secrets the user does not want exposed to inbound SMS, and prefer a dedicated host or VM if available.
• Claude Code's permission model still applies inside the daemon-driven session — destructive actions still surface confirmation prompts. textme exposes the yes/no reply path for those prompts, which means the phone number is making the approval. Make sure the whitelist matches the trust level of approving destructive operations remotely.
• Inbound messages are untrusted input. Treat textme prompts as user input from the open internet (with phone-number authentication). Do not pipe their contents into eval, shell substitution, or scripts that bypass Claude Code's review.
• Lock-screen previews of replies leak. When Claude responds to a message, the reply lands on the user's lock screen unredacted. Don't ask Claude over textme to surface secrets, tokens, or customer data via SMS — link to a local log or PR instead.
• Daemon liveness is a footgun. If pm2/launchd is auto-restarting the daemon, the user must remember to stop it before changing whitelist entries, rotating credentials, or rebooting into an untrusted state.

Common Pitfalls

• Whitelist drift. A number added "for a demo" never gets removed. Audit whitelist whenever the host changes hands or scope.
• apiKey / apiSecret confusion. Sendblue's API credentials (from sendblue show-keys) are distinct from the CLI's local bearer token in ~/.sendblue/credentials.json. textme needs the API credentials, not the CLI auth file.
• Free-plan silent send failures. If the user's phone never texted the Sendblue number first, outbound replies from Claude silently fail. Verify with sendblue contacts before relying on the loop.
• Auto-start before verification. Installing the launchd plist or pm2 save-ing the daemon before testing the non-whitelist ignore path will baseline a potentially open daemon at boot. Verify first, persist second.
• Running the daemon in ~ or a repo with secrets. The working directory at startup is exposed to anything textme is told to do (ls, cat, etc.). Start in a sandbox directory and cd deliberately.
• Confusing textme with the Sendblue MCP. They look similar but the MCP variant only gives Claude outbound Sendblue tools — it does not open an inbound channel. If the user wants "text Claude from my phone", they need textme; if they want "Claude can send a text mid-session", the MCP is lighter.

Related Skills

• @sendblue-notify — Outbound counterpart (Claude → phone). Composes with textme to make the loop bidirectional.
• @sendblue-cli — Account setup, credential management, and the show-keys command that surfaces the API key/secret textme needs.
• @sendblue-api — HTTP API reference for users who want to build a custom inbound handler instead of using textme's daemon.
• @update-config — If wiring textme alongside Claude Code hooks (e.g. a Stop hook that pings the user), use this for the settings.json edits.

Links

• Repository: https://github.com/njerschow/textme
• License: https://github.com/njerschow/textme/blob/main/LICENSE (MIT)
• Sendblue: https://sendblue.com
• Sendblue docs: https://docs.sendblue.com