Sim Skills

Official skills-only sim plugin for building workflows and operating Sim resources through the Sim CLI.

Install

Install from the repository with the standard Agent Skills installer:

bunx skills add simstudioai/skills --global

Install one skill for Codex without prompting:

bunx skills add simstudioai/skills \
  --skill build-workflow \
  --agent codex \
  --global \
  --yes

Once published, the npm package provides a shorter interactive installer:

bunx sim-skills

Install one skill globally for a specific agent:

bunx sim-skills --skill build-workflow --agent codex --global --yes

List the bundled skills without installing them:

bunx sim-skills --list

All options after sim-skills are forwarded to the standard Agent Skills installer. install and add are optional aliases, so bunx sim-skills install --list is equivalent to the last example.

The repository and npm package roots are also native plugin roots. Their .codex-plugin/ and .claude-plugin/ manifests both declare sim as the plugin namespace, and skills/ contains the shared skills. This allows plugin marketplaces to use either source without a subdirectory selector or install-time build step.

A Codex marketplace can install the native plugin directly from npm:

{
  "name": "sim",
  "source": {
    "source": "npm",
    "package": "sim-skills",
    "version": "latest",
    "registry": "https://registry.npmjs.org"
  },
  "policy": {
    "installation": "AVAILABLE",
    "authentication": "ON_INSTALL"
  },
  "category": "Productivity"
}

Namespace

Native plugin installs expose the skills under the sim namespace:

• sim:build-workflow
• sim:run-workflow
• sim:deploy-workflow
• sim:sync-workspaces
• sim:table
• sim:knowledge-base

Direct installs through bunx sim-skills install the selected skills without the plugin prefix.

Included skills

• build-workflow — discover blocks and author a draft graph with atomic workflow operations.
• run-workflow — test saved state, exercise triggers, resume from a block, and diagnose runs.
• deploy-workflow — publish and manage workflows as APIs, chats, or MCP tools.
• sync-workspaces — import portable workflows with bindings, fork workspaces, and preview, apply, and reconcile push/pull sync.
• table — design typed tables, load and query rows, import data, and run workflow groups.
• knowledge-base — ingest and index documents, configure connectors and tags, and verify retrieval.

The skills assume the sim CLI is installed and authenticated. They never store or print API keys.

Workspace sync guidance requires a CLI and server exposing the v2 import-preview and fork sync commands. The skill checks command availability before changing resources.