ArcKit - Enterprise Architecture Governance Toolkit
Build better enterprise architecture through structured governance, vendor procurement, and design review workflows.
ArcKit is a toolkit for enterprise architects that transforms architecture governance from scattered documents into a systematic, AI-assisted workflow for:
- 🏛️ Establishing and enforcing architecture principles
- 👥 Analyzing stakeholder drivers, goals, and outcomes
- 🛡️ Risk management (HM Treasury Orange Book)
- 💼 Business case justification (HM Treasury Green Book SOBC)
- 📋 Creating comprehensive requirements documents
- 🗄️ Data modeling with ERD, GDPR compliance, and data governance
- 🔬 Technology research with build vs buy analysis (web search powered)
- ☁️ Azure-specific research using Microsoft Learn MCP for authoritative documentation
- 🗺️ Strategic planning with Wardley Mapping
- 📊 Generating visual architecture diagrams (Mermaid)
- 🤝 Managing vendor RFP and selection processes
- ✅ Conducting formal design reviews (HLD/DLD)
- 🔧 ServiceNow service management design
- 🔗 Maintaining requirements traceability
Quick Start
Installation
Claude Code (premier experience) — install the ArcKit plugin (requires v2.1.90+):
/plugin marketplace add tractorjuice/arc-kit
Then install from the Discover tab. Claude Code is the primary development platform for ArcKit and provides the most complete experience: all 67 commands, 9 autonomous research agents, 5 automation hooks (session init, project context injection, filename enforcement, output validation, impact scan), bundled MCP servers (AWS Knowledge, Microsoft Learn, Google Developer Knowledge, govreposcrape), and automatic updates via the marketplace. See Why Claude Code? below.
Why v2.1.90? This version fixes PostToolUse hooks causing "File content has changed" failures during consecutive edits, fixes PreToolUse JSON blocking with exit code 2, eliminates per-turn JSON serialization of MCP tool schemas (performance win for ArcKit's 5 bundled servers), and includes all prior fixes for hook
ifcondition filtering, absolutefile_pathin hooks, agent completion notifications, and memory leaks in subagents and MCP servers.
Gemini CLI — install the ArcKit extension:
gemini extensions install https://github.com/tractorjuice/arckit-gemini
Zero-config: all 67 commands, templates, scripts, and bundled MCP servers (AWS Knowledge, Microsoft Learn). Updates via gemini extensions update arckit.
GitHub Copilot (VS Code) — install the ArcKit CLI and scaffold prompt files:
# Install with pip
pip install git+https://github.com/tractorjuice/arc-kit.git
# Scaffold a project with Copilot prompt files
arckit init my-project --ai copilot
Creates .github/prompts/arckit-*.prompt.md (67 prompt files), .github/agents/arckit-*.agent.md (9 custom agents), and .github/copilot-instructions.md (repo-wide context). Invoke commands in Copilot Chat as /arckit-requirements, /arckit-stakeholders, etc.
Codex CLI — install the ArcKit CLI:
# Install with pip
pip install git+https://github.com/tractorjuice/arc-kit.git
# Or with uv
uv tool install arckit-cli --from git+https://github.com/tractorjuice/arc-kit.git
# Or run without installing
uvx --from git+https://github.com/tractorjuice/arc-kit.git arckit init my-project
Latest Release: v4.6.2
Platform Support
| Platform | Claude Code Plugin | Gemini CLI Extension | GitHub Copilot | Codex / OpenCode CLI |
|---|---|---|---|---|
| macOS | Full support | Full support | Full support | Full support |
| Linux | Full support | Full support | Full support | Full support |
| Windows (WSL2) | Full support | Full support | Full support | Full support |
| Windows (native) | Full support | Full support | Full support | Partial |