{"id":"url-shortener-expiration-lazy","text":"Expired URLs are never eagerly removed from storage; expiration is checked at read time in `redirect` and `list_urls` — no background reaper.","truth_value":"IN","source":"entries/2026/06/05/url-shortener-url_shortener.md","source_url":"","source_hash":"","justifications":[],"dependents":["eviction-timing-has-no-codebase-convention","lazy-read-time-evaluation-trades-write-simplicity-for-read-cost"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"url-shortener-expiration-lazy","truth_value":"IN","reason":"premise"}]}}