What you need

Almost nothing — and that's the point.

• An AI agent. Claude Code, Cursor, Grok, Gemini, Codex, Copilot, Antigravity… whatever you run. The plan is the program; the agent is the runtime.
• A provider CLI you already have — aws / wrangler / gcloud / az. No Terraform, no plugins, no state backend.
• Plain English. You don't describe infrastructure — you describe what you want it to do, and the agent reads the plan and goes.

The contract (EPHEMERA.md) is runtime-neutral; the per-agent adapter is a ~20-line router — the Claude skill, or the AGENTS.md block for Codex / Cursor / Gemini / Antigravity.

What's in the box

One file per stack: it describes the desired state, carries the commands, records what it built, verifies itself, and tears itself down. Browse the canon below — click a plan to preview it here.

ephemera.daystra.com/
├── EPHEMERA.md            the execution contract — agents fetch this
├── EPHEMERA-TEMPLATE.md   author a new plan
├── install.sh             curl … | sh
├── llms.txt               agent-readable summary
├── catalog.json           intent → bindings
├── skills/claude/SKILL.md Claude adapter (install.sh wires it)
├── AGENTS.block.md        Codex · Cursor · Gemini · Antigravity
└── plans/
    ├── web.aws.md · web.cloudflare.md      static site (SPA / multipage)
    ├── task-runner.aws.md · …cloudflare.md  async task API
    ├── email.resend.md · …cloudflare · …aws  transactional email
    ├── domain.aws.md · …cloudflare.md     registration + DNS
    └── network.aws.md · ecs-cluster · ecs-service  platform

Start here

Preview

Click any plan above — it renders here, one at a time. Agents fetch the raw .md at the same URL.