Wrap repeat automations into Packs you call like functions, running on Claude or Codex. Install community-built Packs from the marketplace, or author your own with PackBuilder.
Describe what you want in plain language; PackBuilder drafts the input schema, steps, and tool list for you.
Search by category, keyword, or author trust tier; install with one click.
Manifest validation, capability declarations, and trust tiers block risky Packs before they run.
schemaVersion compatibility rules push explicit upgrade notifications for major changes.
Packs run on whichever CLI you use; steps run deterministically so LLM variance doesn't derail the result. On non-Codex providers, image steps render an HTML summary card.
Packs run in a separate runtime from your Workers so one cannot drag down the other.