callsign

Q: How to install callsign?

Create the skills directory: mkdir -p .claude/skills. Then add the config to .claude/skills/callsign.md. Finally, /callsign in Claude Code.

Q: What is callsign best for?

callsign is categorized under General. It covers: agent.

New

GitHub TrendingGeneralby heyfinal

Unique per-session agent names + iMessage routing for Claude Code and Hermes. Address sessions by name (Frank, Steven, …) instead of one shared trigger.

First seen 6/15/2026

Summary

, 'Frank' or 'Steven') instead of using a shared trigger.

It also integrates with iMessage for routing messages to specific sessions, making multi-agent workflows more intuitive and organized.

Install & Usage

Create the skills directory

mkdir -p .claude/skills

Download the skill file

Add the configuration to .claude/skills/callsign.md

Invoke in Claude Code

/callsign

Use Cases

Managing multiple concurrent Claude Code sessions with distinct identities for parallel tasks.

Routing iMessage notifications to a specific agent session by name for targeted assistance.

Assigning a consistent name to a long-running session to easily resume context and history.

Using named agents in team collaborations where each developer interacts with their own session.

Debugging complex systems by dedicating named agents to different components or services.

Automating workflows that require distinct agent personas for different stages or environments.

Usage Examples

/callsign Frank

Assign the name 'Steven' to this session and route iMessage alerts to it.

List all active sessions and their callsigns.

View source on GitHub

agent

Security Audits

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Frequently Asked Questions

What is callsign?

This skill assigns unique, memorable names to each Claude Code session, enabling developers to address agents individually (e.g., 'Frank' or 'Steven') instead of using a shared trigger. It also integrates with iMessage for routing messages to specific sessions, making multi-agent workflows more intuitive and organized.

How to install callsign?

To install callsign: create the skills directory (mkdir -p .claude/skills), then add the config to .claude/skills/callsign.md. Finally, /callsign in Claude Code.

What is callsign best for?

callsign is a community categorized under General. It is designed for: agent. Created by heyfinal.

What can I use callsign for?

callsign is useful for: Managing multiple concurrent Claude Code sessions with distinct identities for parallel tasks.; Routing iMessage notifications to a specific agent session by name for targeted assistance.; Assigning a consistent name to a long-running session to easily resume context and history.; Using named agents in team collaborations where each developer interacts with their own session.; Debugging complex systems by dedicating named agents to different components or services.; Automating workflows that require distinct agent personas for different stages or environments..