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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: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.
  • 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.