tractorjuice/arc-kit

Claude Code: /plugin marketplace add tractorjuice/arckit-claude, then claude plugin install arckit (requires Claude Code v2.1.219+)
Gemini CLI: gemini extensions install https://github.com/tractorjuice/arckit-gemini
GitHub Copilot / Codex CLI: pip install git+https://github.com/tractorjuice/arc-kit.git, then arckit init my-project --ai copilot|codex
Mistral Vibe: git clone + symlink the extension; Kimi Code CLI: /plugins install https://github.com/tractorjuice/arckit-kimi.git

Usage

• •Initialize a project: arckit init payment-modernization --ai codex
• •Run commands inside the assistant: /arckit:principles, /arckit:stakeholders, /arckit:requirements, /arckit:sobc, /arckit:risk
• •Procurement: /arckit:sow (RFP), /arckit:dos, /arckit:gcloud-search, /arckit:evaluate
• •Compliance: /arckit:tcop, /arckit:secure, /arckit:ai-playbook, /arckit:service-assessment, /arckit:jsp-936

Key features

• ✓75 official cross-AI slash commands plus 15 community plugins (UK base + UAE, EU, FR, CA, AU, US, NHS, TOGAF ADM, AI-agent architecture overlays)
• ✓UK Government compliance: TCoP (13 points), GDS Service Standard, HM Treasury Orange Book risk, Green Book SOBC, Secure by Design, ATRS, MOD JSP 936
• ✓Bundled MCP servers for cloud research (AWS Knowledge, Microsoft Learn, Google Developer Knowledge), govreposcrape (24,500+ UK gov repos), and uk-tenders (677K contracting processes)
• ✓Wardley Mapping, Mermaid architecture diagrams, traceability, backlog generation, and documentation site publishing (docs/llms.txt)
• ✓Autonomous research agents, automation hooks (filename correction, project context injection, MCP auto-allow) on Claude Code

Best for

UK government / public-sector enterprise architects and AI-agent governance programs that need structured, AI-assisted governance artifacts with traceability.

Caveats

• ⚠Claude Code is the primary platform (premier experience); developed and tested on Linux — Windows has limited support, use WSL2 or a devcontainer
• ⚠Community-contributed overlays (EU/FR/CA/UAE/US/NHS) carry [COMMUNITY] markers, some citations flagged [NEEDS VERIFICATION], and outputs must be reviewed by qualified counsel/DPO/CISO
• ⚠The arckit-uk-gcloud G-Cloud bid overlay is proprietary (non-MIT) and Claude Code only
• ⚠Token footprint: ~10,042 tokens always-on per session; heavy commands (jsp-936 ~60K) can exceed the 32K output-token max on Free/Pro Claude plans (use Write-tool strategy or raise to 64K on Team/Enterprise)