add-signal

add-signal is an open-source productivity skill for Claude Code and compatible agents, published by nanocoai. Its author describes it as: “Add Signal channel integration via signal-cli device-link. Native adapter — no Chat SDK bridge.”. The project has 31k stars on GitHub and is available under the MIT license. Add it to your setup with `git clone https://github.com/nanocoai/nanoclaw ~/.claude/skills/add-signal`.

What add-signal does

Adds Signal support via a native adapter that speaks JSON-RPC to a signal-cli daemon — no Chat SDK bridge, only Node.js builtins. NanoClaw links to Signal as a *secondary device* on your existing phone: no new number, no bot API. Your assistant sends and receives as the number on the phone that scans the link.

Installation

Add add-signal to your agent with:

git clone https://github.com/nanocoai/nanoclaw ~/.claude/skills/add-signal

Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.

What's inside

The SKILL.md for add-signal is organised into these sections:

• Apply
• 1. Install signal-cli
• 2. Copy the adapter and its registration test
• 3. Register the adapter
• 4. Install the QR-rendering dependency
• 5. Build and validate
• Link your Signal account
• Persist the account
• Restart
• Wiring
• DMs
• Groups

When to use it

Reach for add-signal when you want productivity help from your agent without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.

Strengths

• Clear MIT license — safe to read and adapt
• Ships in nanocoai/nanoclaw, an established project with 30,542 GitHub stars
• Actively maintained (recent commits)

Topics

Frequently asked questions

What does add-signal do?

Add Signal channel integration via signal-cli device-link. Native adapter — no Chat SDK bridge.

How do I install add-signal?

Run git clone https://github.com/nanocoai/nanoclaw ~/.claude/skills/add-signal in your agent, then reload your skills. Review the source at https://github.com/nanocoai/nanoclaw before installing.

Is add-signal free to use?

Yes. add-signal is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.

Where does add-signal come from?

add-signal ships inside nanocoai/nanoclaw, a repository that contains 41 catalogued skills in total. The repository's 30,542 GitHub stars apply to that whole collection, not to this skill on its own.