# astrale-domain

Guides creation, testing, schema design, and deployment of Astrale Domains. Keeps agents aligned with kernel boundaries and SDK import rules.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 1800 installs
- Author: astrale-os
- License: Apache-2.0 · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/astrale-os/cli/tree/HEAD/skills/astrale-domain/SKILL.md
- Updated: 2026-10-23
- HTML: https://affpapa.org/en/nevibecode/skills/astrale-domain

## What it does

The skill organizes Astrale Domain engineering into phased stages: foundation, schema, callables, views, datasets, and testing. It uses an intent router to read only the necessary documents from `references/`, preventing the agent from relying on unverified API syntax.

Kernel isolation rules are enforced strictly. Domain code must import Core and DSL primitives exclusively through designated `@astrale-os/sdk/*` subpaths, never directly from `@astrale-os/kernel-core` or `@astrale-os/kernel-dsl`. Handlers execute only admitted calls: authorization belongs to Schema policies and callable `auth` modes, forbidding secondary auth layers in action logic.

Policy scopes require intentional node extents such as `node()`, polymorphic `node(Class)`, or `node.exact(Class)`. Any platform-level hurdles or unexpected SDK behaviors are directed to `astrale issue`.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add astrale-os/cli --skill astrale-domain -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/astrale-domain/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/astrale-domain/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add astrale-os/cli --skill astrale-domain -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/astrale-domain/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add astrale-os/cli --skill astrale-domain -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/astrale-domain/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install astrale-os/cli astrale-domain
```

2. **Manually: put the files in place**
- File: `.github/skills/astrale-domain/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add astrale-os/cli --skill astrale-domain -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/astrale-os/cli --path skills/astrale-domain
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/astrale-domain/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add astrale-os/cli --skill astrale-domain -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/astrale-os/cli/tree/HEAD/skills/astrale-domain/SKILL.md

## When to use it
- scaffold new Astrale Domains according to the phased lifecycle
- configure Schema-level access policies using explicit node extents
- implement runtime handlers without direct kernel core imports
- build representative test datasets under `tests/` for Studio verification
- plan schema migrations and data backfills

## Example prompts
- Scaffold a new domain following the schema and policy guidelines.
- Implement an integration provider handler without creating a duplicate auth check.
- Generate demo dataset fixtures under `tests/` for Studio policy testing.

## Source text · SKILL.md · Apache-2.0

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 980e504ea162287e.

BEGIN THIRD-PARTY FILE 980e504ea162287e
```text
---
name: astrale-domain
description: "Create, modify, test, migrate, or debug Astrale Domains: Schema, Policies, Action/Workflow runtime, integrations, Views, Datasets, and deployment. For a new Domain follow the phased workflow; for focused work load only the relevant references."
---

# Astrale Domain

Load detailed domain knowledge from the references that matches the goal.

## Kernel boundary

- Use Schema, executable evidence, and the SDK's Domain linter as guardrails.
- Domain source imports Core and DSL authoring values only through the matching semantic
  `@astrale-os/sdk/*` subpath. Do not import `@astrale-os/kernel-core` or
  `@astrale-os/kernel-dsl` directly, and do not replace them with a flat SDK root barrel.
- Keep authorization in Schema-owned Policy and callable `auth` mode; handlers execute only admitted
  calls and do not define a second authorization model.
- Choose each existential Policy Node extent deliberately: `node()` for topology-owned matching,
  `node(Class)` for a polymorphic Class family, or `node.exact(Class)` for exact identity.
- Treat the installed SDK's public exports and the current Domain source as authoritative
  for API syntax.

## Intent Router

Use this router to load only the references owned by the current task. For new Domains, also use the
phased workflow below; an existing public scaffold already satisfies its foundation phase.

- Scaffold, test, or configure TypeScript and Environments for a domain: read `references/development.md`.
- Deploy, install, publish or yank a version, roll back, rotate a deployment's secret, or decide who
  owns a development instance: read `references/release.md`.
- Author schema, vocabulary, properties, Class/Edge choices, or review a schema: read `references/schema.md` first. Always read it for schema work.
- Implement handlers, callable bindings, kernel calls, graph reads/writes, or cross-domain calls: read `references/runtime.md`.
- Wrap an external API, define an Integration/Provider, receive webhooks, or design side-effect/retry behavior: read `references/integrations.md`.
- Decide whether to reuse/import a native Astrale domain instead of modeling a capability yourself: read `references/domains.md`.
- Model sign-in users, invite/register existing people, assign Shell groups, or make someone an instance administrator: read `references/users.md`.
- Secure a Domain, Function, View, client call, public endpoint, identity, delegation, authentication mode, or Policy: read `references/policies.md`.
- Build or review browser views, mounted UI, View access, View resolution, or frontend design: read
  `references/views.md` and apply `astrale-frontend-design` for product-interface layout,
  interaction, and copy.
- Plan or qualify an installed Schema revision, data transition, or backfill; migrate a breaking
```
END THIRD-PARTY FILE 980e504ea162287e

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