Plugin System

Catalyst is distributed as independent Claude Code plugins. Install only the ones you need to keep your context lean and focused.

Available Plugins

Plugin	Description	Context Cost
catalyst-dev	Core development workflow — research, plan, implement, validate, ship	~3.5K tokens
catalyst-pm	Project management — cycle analysis, backlog grooming, PR sync	Minimal (CLI-based)
catalyst-analytics	Product analytics via PostHog MCP	~40K tokens
catalyst-debugging	Error monitoring via Sentry MCP	~20K tokens
catalyst-meta	Workflow discovery, creation, and management	Minimal

Installation

# Add the marketplace
/plugin marketplace add coalesce-labs/catalyst

# Install plugins
/plugin install catalyst-dev          # Required
/plugin install catalyst-pm           # Optional
/plugin install catalyst-analytics    # Optional
/plugin install catalyst-debugging    # Optional
/plugin install catalyst-meta         # Optional

Session-Based MCP Management

Plugins load and unload MCPs dynamically to manage context:

# Enable when needed
/plugin enable catalyst-analytics    # +40K context
/plugin enable catalyst-debugging    # +20K context

# Disable to free context
/plugin disable catalyst-analytics   # -40K context

Most sessions start with just catalyst-dev (~3.5K tokens) and enable heavier plugins only when needed.

Updating

# Fetch latest from marketplace
claude plugin marketplace update catalyst

# Restart Claude Code to load updates

Architecture

Each plugin contains:

• agents/ — Specialized research agents
• commands/ — Workflow commands (invoked via /command-name)
• scripts/ — Runtime utilities
• hooks/ — Automatic triggers (e.g., workflow context tracking)
• plugin.json — Manifest with metadata and dependencies