Déjà exists so teams don't have to solve the same incident twice.
Modern engineering teams move fast. Code changes. Teams change. Context disappears. Déjà preserves what matters most in production: the knowledge of how failures were actually fixed.
Most production incidents aren't new problems. They're old problems wearing new clothes. An engineer spends hours diagnosing an issue that was already fixed months ago — but the fix is buried in logs, pull requests, threads, or the memory of someone who's no longer there.
Incident tools document what happened. Ticketing systems track what people said. Déjà remembers what actually worked.
What Déjà is
Déjà is an institutional memory system for production incidents. It quietly learns from resolved failures, links them to the code that fixed them, and recalls those fixes when the same incident returns.
What Déjà is not
Déjà is not an incident manager. It doesn't create tickets. It doesn't generate alerts. It doesn't guess.
Déjà only speaks when it has something proven to say.
- Trust is earned through restraint
- Memory compounds over time
- Proven fixes beat speculation
- Context matters more than noise
- Infrastructure should feel calm
Teams adopt Déjà not to move faster at any cost — but to stop wasting time on work they've already paid for. Every retained fix removes future diagnosis. Every resolved incident strengthens institutional memory.
Over time, Déjà becomes the quiet layer that outlives deploys, refactors, reorganizations, and turnover.
When production breaks, recall the last proven fix — in seconds.