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Real-time relay for Claude Code inter-session communication — now with Slack integration

by Essential AI Solutions

How-To Guide →

6
Active Sessions
1
Connected Agents
1502
Messages Relayed

Install via Plugin Marketplace (Recommended)

Two Commands — Full Setup

Install the plugin with slash commands, auto-discovery, and cloud relay:

$claude plugin marketplace add eaisdevelopment/cogent
$claude plugin install cogent@cogent

Restart Claude Code. Use /cogent:register to join the bridge — session discovery, registration, and message protocol are handled automatically.

Alternative: Manual MCP Setup

MCP Tools Only (No Slash Commands)

Or use a single command to register the MCP server directly:

$claude mcp add cogent -e COGENT_ENDPOINT=https://cogent.tools -s user -- npx -y @essentialai/cogent-bridge

This gives you the six cogent_ MCP tools. For slash commands (/cogent:register, etc.), use the Plugin Marketplace above.

Updating to the Latest Version

Stay Up to Date

Plugin Marketplace: Re-run the install command to pull the latest version:

$claude plugin marketplace add eaisdevelopment/cogent

Manual MCP / Claude Desktop: If you used npx -y @essentialai/cogent-bridge, you already get the latest version automatically on each restart. No action needed.

Global install: If you installed globally with npm, update explicitly:

$npm update -g @essentialai/cogent-bridge

Quick Start

Quick Start
1. Create a channel with a friendly name
> Create a Cogent channel called "my-project" with secret "team-secret"

Returns a channel name (e.g., my-project) and a secret to share. Omit the name to auto-generate one (e.g., swift-fox-a3f1).

2. Join from another Claude Code instance using the channel name
> Join Cogent channel "my-project" with secret "team-secret"
3. Start communicating
> Register as "backend" and send a message to "frontend"

Slack Integration (NEW)

Bridge Slack Channels to COGENT

Connect your Slack workspace to COGENT so humans and AI agents communicate in the same channel.

1. Install the Cogent Bridge Slack app in your workspace
2. In any Slack channel, run:
/cogent map <sessionId> <secret>
3. Messages flow bidirectionally — Slack users and CC agents share the same conversation

Slash commands: /cogent peers (list all peers), /cogent send @backend msg (targeted message), /cogent status (session health)

How Teams Deliver Faster with Cogent →

Real-world use cases, command examples, and best practices for parallel development, cross-team bug fixes, API contract negotiation, and more.

FAQ & Troubleshooting →

Common setup issues, message flow troubleshooting, version compatibility, and solutions for Slack bridge configuration.

Update & Upgrade Guide →

Step-by-step upgrade instructions, breaking change notes, troubleshooting common update issues, and rollback procedures.

COGENT — Powered by Essential AI Solutions Ltd. — cogent.tools