claude-irc

A small communication system that lets separate Claude Code sessions exchange messages in an IRC-like way. IRC is an older style of real-time text chat organized around channels.

In plain words
What is it for?
Use it for inter-session communication between Claude Code agents, including joining the communication system when a session starts and leaving it when the session ends.
Why use it?
It gives coding agents a shared place to coordinate when work is split across multiple sessions.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add bang9/ai-tools
agentmods
npx agentmods add plugins/bang9/ai-tools/claude-irc
Clone the repo
git clone --depth 1 https://github.com/bang9/ai-tools

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

claude-irc scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

claude-irc/.claude-plugin/plugin.json · 43 lines

What it actually says

{
  "name": "claude-irc",
  "version": "v2.17.1",
  "description": "IRC-inspired inter-session communication for Claude Code agents",
  "author": {
    "name": "Airen Kang",
    "url": "https://github.com/bang9"
  },
  "repository": "https://github.com/bang9/ai-tools",
  "license": "MIT",
  "keywords": [
    "irc",
    "communication",
    "agent",
    "inter-session",
    "collaboration"
  ],
  "hooks": {
    "SessionStart": [
      {
        "matcher": ".*",
        "hooks": [
          {
            "type": "command",
            "command": "${CLAUDE_PLUGIN_ROOT}/scripts/ensure-binary.sh"
          }
        ]
      }
    ],
    "SessionEnd": [
      {
        "matcher": ".*",
        "hooks": [
          {
            "type": "command",
            "command": "claude-irc quit 2>/dev/null || true"
          }
        ]
      }
    ]
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 43 lines scan A 162ba2ea67d9

Subscribe to this mod's changes

claude-irc is a plugin published in the GitHub repository bang9/ai-tools (10 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.