Privacy

What data, if any, is collected when you visit superpowers.zsl.dev and when you use the ZSL Superpowers plugin itself.

This site

superpowers.zsl.dev is a static documentation site hosted on GitHub Pages. It contains no forms, sign-ups, comments, analytics, or advertising. We do not set any first-party cookies and do not track visitors.

GitHub serves the site and may log standard request metadata (IP, user-agent, requested URL) under their own infrastructure logging — see GitHub's Privacy Statement for what they retain and for how long.

The HTTPS certificate is issued automatically by Let's Encrypt; this is a standard certificate-authority interaction with no user-data implications.

The plugin

The zsl plugin you install via /plugin install zsl@zsl-superpowers runs entirely inside your local Claude Code session. The skills do not phone home, do not collect telemetry, and do not transmit any data to ZunoSmartLabs. They operate on the files in your repo and the conversation in your Claude Code session — both of which stay between you and Anthropic per your existing Claude Code agreement.

The timesheet skill reads your local Claude Code session histories from ~/.claude/projects/ to summarise recent work. That data never leaves your machine; the skill writes nothing back to those files. If your Claude Code session has the Granola, Google Calendar, Gmail or Harvest connectors, the skill also reads meeting summaries, calendar events and the subjects and recipients of sent email (never bodies) for the same window through them — your own connectors, under each provider's terms — and, only after you approve the proposed entries, writes time entries to Harvest. It never writes to Granola, your calendar or your mailbox. Without a connector that step is skipped.

Source code

Everything that runs locally is open source at github.com/ZunoSmartLabs/zsl-superpowers. You can audit any skill's behaviour before invoking it.

Changes to this policy

If this policy changes materially, we'll bump the "Last updated" date below and note significant changes in the repo's commit history.

Contact

Questions about privacy or the plugin's behaviour: open an issue at github.com/ZunoSmartLabs/zsl-superpowers/issues.

Last updated: 18 September 2026.