---
type: reference
title: Skills CLI Environment Variables
description: Environment variables — INSTALL_INTERNAL_SKILLS, DISABLE_TELEMETRY, DO_NOT_TRACK.
tags:
  - unverified
  - skills
  - environment
  - telemetry
timestamp: 2026-07-18
verified: 2026-08-28
---

# Environment Variables

| Variable | Description |
|----------|-------------|
| `INSTALL_INTERNAL_SKILLS` | Set to `1` or `true` to show and install skills marked as `internal: true` |
| `DISABLE_TELEMETRY` | Set to disable anonymous usage telemetry |
| `DO_NOT_TRACK` | Alternative way to disable telemetry |

```bash
# Install internal skills
INSTALL_INTERNAL_SKILLS=1 npx skills add vercel-labs/agent-skills --list
```

## Telemetry

The CLI collects anonymous usage data to help improve the tool. No personal information is collected. Telemetry is automatically disabled in CI environments.

## Related

* [SKILL.md Format](/tools/vercel-labs-skills/skill-format.md) — `metadata.internal: true`