Free Metadata

Every event logged to /events/... comes with metadata you didn't ask for:

• Timestamp — when it happened
• IP — where it came from
• User-agent — what sent it (browser, GitHub Actions, curl, bot)
• Referer — what page triggered it
• Edge location — which CloudFront POP handled it

None of this is in the URL. CloudFront captures it automatically on every request. You get five dimensions of context for free.

What this means

You can answer questions you didn't think to ask:

• "Are deploy events coming from GitHub Actions?" — check user-agent
• "Which edge location serves the most traffic?" — group by POP
• "What page has the most dead links?" — check referer
• "When do people read posts?" — timestamp distribution
• "Is someone hammering the events endpoint?" — group by IP

All from the same log. No additional instrumentation. The data was always there — you just started writing to a path that makes it queryable.

Self-describing data

The URL content duck-types itself: starts with { → JSON, otherwise key=value. The metadata duck-types the source: user-agent tells you what sent it without the sender declaring anything. The whole system is self-describing without schemas.