The operating system for your coding agent

One command gives Claude Code, Codex, Cursor or any other agent the same vetted skills, safety guards and playbooks, in every project you open. It tells you when a new version ships.

10 playbooks

162 vetted skills

4 guards

70+ agents

engineering-os — vault

for

terminal — claude

ready eos 0.6.0 · auto-update notices 10 playbooks 162 skills 4 guards MIT

What grade is your agent setup?

Lighthouse for coding agents. Grades guardrails, working rules, skills and feedback loops, then tells you the biggest wins. Read-only, nothing leaves your machine, works without installing anything.

$ curl -fsSL engineering-os-hazel.vercel.app/score | python3 -

# after installing
$ eos score --card     # shareable 1200×630 card
$ eos score --badge    # README badge with your grade
$ eos receipts         # what the guards stopped this week

Then attack it. redteam fires 51 fake attacks at your guards (rm -rf ~, curl | sh, .env sent to a webhook, live keys in source) and 35 harmless look-alikes. Your hooks judge each one; nothing is executed.

$ curl -fsSL engineering-os-hazel.vercel.app/score | python3 - redteam

Playbooks that route to the best skills

Your agent loads them on its own when a task matches. Type them when you want to steer.

/eos:frontend

Anthropic frontend-design, Emil Kowalski, ui-ux-pro-max, impeccable, shadcn, GSAP, Vitest, a11y.

/eos:backend

Prisma, Supabase, Neon, Upstash, auth and payments. Nothing is done until it's been hit for real.

/eos:ai

Claude API, Vercel AI SDK, agents, MCP servers and RAG, with /eos:evals test sets.

/eos:reverse

Map unknown codebases, undocumented APIs, protocols and competitor products.

/eos:deploy

Vercel, AWS and Azure official skills, CI/CD, rollbacks and post-deploy checks.

/eos:research

Decision-ready briefs with dated citations and a parallel researcher agent.

/eos:gtm

Positioning, pricing, launch, and product videos as code with Remotion.

/eos:evals

Real test sets for prompts, agents and RAG, with regression checks in CI.

/eos:add

Need a skill? It finds the best one, vets it, and installs it everywhere you work.

Grows with you

Ask for a skill and it searches the open skills directory, keeps only reputable sources, and records the pick so every machine gets it.

# inside your agent
› /eos:add stripe webhooks

# or the terminal
$ eos add owner/repo@skill --domain backend
$ eos new-skill release-notes   # live next session as /eos:release-notes
$ eos status

Works with your agent

Claude Code gets everything. Other agents get the skills and working rules through the open skills format.

Claude Code · fullCodexCursorGemini CLIGitHub CopilotWindsurfOpenCodeClineAmpRooGooseZedand 60 more