PRIVACY POLICY

Existential Burn (“the Service”) is a free tool for Claude Code users to visualize usage statistics and compete on anonymous leaderboards. This policy explains what data we collect, how we use it, and your rights regarding that data.

We collect only the Claude Code usage statistics you voluntarily upload. This includes:

• Session counts and durations
• Message and conversation counts
• Tool call statistics (counts by tool type)
• Model usage breakdown (tokens per model)
• Hourly activity distribution
• Token consumption (input/output)
• Estimated cost calculations
• Facets data: session goals, outcomes, and satisfaction ratings (no conversation content)

• Real names, email addresses, or personal identifiers
• Conversation content or prompts
• Source code or file contents
• Passwords or authentication credentials
• Browser fingerprints or tracking data

We use a single functional cookie (eb_token) to identify your anonymous account. This is a UUID stored as an httpOnly, secure cookie with SameSite=Lax and a one-year expiry. No registration, email, or personal information is required. Your display name is auto-generated (e.g., “Anxious Debugger”).

Before your data is stored, a 3-tier redaction system automatically strips sensitive information:

• File paths are removed or generalized
• Usernames are stripped from all data
• Project names are redacted

You choose your redaction level (minimal, standard, or paranoid) before upload. You can preview exactly what will be stored.

• Display your usage statistics on your personal dashboard
• Calculate and display anonymous leaderboard rankings
• Aggregate team statistics for team features
• Generate seasonal competition rankings

We do not sell, share, or monetize your data. We do not use it for advertising or profiling.

Your data is stored in Vercel Postgres (powered by Neon), hosted in the United States. We use a single functional cookie (eb_token) — an anonymous session identifier (UUID), HttpOnly, Secure, SameSite=Lax, expiring after 1 year. We do not use tracking, advertising, or third-party cookies.

Leaderboard rankings display your anonymous display name and aggregated statistics only. Share links expose only the data you chose to make public. Team membership is visible to other team members.

• Data deletion: Delete all your data at any time from your profile page.
• Data portability: View your uploaded data in your dashboard at any time.
• Opt out: Stop using the Service and delete your cookie to disassociate from your account.

We use Vercel (hosting) and Neon (database). These services have their own privacy policies. We do not share user-identifiable data beyond what is necessary for the Service to function. The Service is not directed at children under 13.

We may update this policy from time to time. Significant changes will be noted on this page with an updated effective date. For privacy-related questions or data deletion requests, use the deletion feature on your profile page or open an issue on the project's GitHub repository.