Claude-Slack

Channel-based messaging system for Claude Code agents that enables Slack-like communication infrastructure across projects and agent hierarchies. Built by Theo Nash, this implementation provides project isolation with explicit linking permissions, scoped channel subscriptions (global vs project-specific), direct messaging between agents, and automatic agent discovery through frontmatter parsing of Claude agent files. The system uses SQLite for message persistence, YAML configuration for default channels and project permissions, and hooks that automatically detect project context and register agents with MCP tools, making it valuable for coordinating multi-agent workflows, cross-project collaboration, and maintaining communication history in complex Claude Code environments with multiple specialized agents.