Privacy policy

• ▸GitHub profile — username, display name, avatar, and primary email, received via OAuth when you sign in.
• ▸Submissions — source code you run or submit to challenges, stored alongside the challenge slug, language, and resulting score.
• ▸Progress — which challenges you have started, completed, or left in-progress, and aggregate scenario pass/fail counts.
• ▸Usage analytics — page views and high-level interaction events, used for measuring feature adoption. No third-party ad networks.

Data is used solely to operate the platform — authenticating your account, running and evaluating your submissions in isolated containers, tracking your progress across tracks, and surfacing recommendations. We do not sell or rent your data to third parties.

• ▸Submissions and account data live in a managed Postgres database, encrypted at rest.
• ▸Ephemeral execution sandboxes are destroyed after each run — code never persists outside the database row tied to your submission.
• ▸Backups are retained for 30 days and then pruned.

• ▸Export — request a JSON export of your account data and submissions at any time.
• ▸Delete — request full deletion of your account and associated submissions. Honoured within 30 days.
• ▸Revoke — revoke GitHub OAuth access from your GitHub settings at any time.

For any of the above, write to privacy@systemtrials.dev.

• ▸GitHub — OAuth provider for sign-in.
• ▸Anthropic — processes submission code and challenge context when you request AI feedback or run a pair-programming session.
• ▸Stripe — payment processor for paid plans after beta. No card data touches our servers.

Questions or requests go to privacy@systemtrials.dev. We read every message.