DéjàDéjài
Why Déjà?

The Governance Gap in Your Toolchain

Observability detects the fire. Git stores the ash. Déjà provides the Chain of Custody that proves exactly how it was extinguished.

THE COST OF AUDIT FAILURE

The Cost of Audit Failure

In software engineering, this is called Regression — a bug that was fixed months ago silently reappears, forcing your team to diagnose, debug, and patch the same issue twice.

THE FINANCIAL REALITY
The benchmark
Industry data indicates that 24% of "fixed" bugs eventually return. In complex distributed systems, this rises to 50%.
The cost
For a standard team of 10 engineers, this "Amnesia Tax" burns approximately $250,000/year in salary costs alone.
That's the cost of
One senior engineer — or two entire months of roadmap — lost to work you already finished.
THE PROBLEM

Institutional Memory Loss

High-performing teams suffer from regression not from lack of skill — but from lack of deterministic memory. Observability tools tell you something broke. Version control tells you who changed code. But nothing bridges the gap to remember exactly how a specific crash was resolved in the past.

Without Déjà, your institutional memory walks out the door when an engineer leaves — or disappears the moment a Slack thread gets archived.

HOW THE TAX HAPPENS

Three repeatable scenarios

Déjà is built for the real-world ways regressions are created — quietly, unintentionally, and repeatedly.

1 · SPOF

Single Point of Failure (SPOF)

Operational Failure
When resolution logic lives in an engineer's brain, your Mean Time to Recovery (MTTR) is tied to their employment contract. Déjà decouples institutional knowledge from personnel tenure.
2 · REGRESSION

Unchecked Regression Drift

Operational Failure
Without a deterministic link between past incidents and current code, every regression is treated as a novel event. This inflates engineering costs by 40% annually. Déjà flags recurrence instantly.
3 · AUDIT

Audit Chain Breakage

Operational Failure
Slack threads and Jira tickets are not evidence. They are noise. Déjà creates a cryptographic link between the crash (Telemetry) and the fix (PR), satisfying compliance requirements automatically.
THE MISSING LINK

Why not just use GitHub or Sentry?

We integrate with them — but we do what they cannot: deterministic root-cause and resolution memory.

LIABILITY MAP
GITHUB / GITLAB
SENTRY / DATADOG
DÉJÀ
Deterministic Linkage
No
No
Yes
Forensic Evidence Log
N/A
90 days
Immutable
Legal Defensibility
Code Storage
Event Log
Resolution Proof
The Déjà difference

Competitors rely on probabilistic AI (LLMs) or manual tagging (humans updating Jira).

Déjà is deterministic. We do not guess. We correlate runtime anomalies to historical resolution artifacts — and prove it worked.

No hallucinations

Déjà doesn't "suggest." It recalls and validates. Confidence is gated by rate reduction + traffic criteria.

THE COST OF AUDIT FAILURE

The Cost of Audit Failure

Efficiency is a "vitamin." Compliance is a "painkiller." See the metrics that matter to governance teams.

Mean Time to Evidence (MTTE)

From Weeks to Seconds. Without Déjà, proving a fix required manual investigation across multiple systems. With Déjà, the Chain of Custody is instant.

Regulatory Exposure

From Unknown to Capped. Déjà's immutable evidence log provides defensible proof of incident resolution, reducing compliance risk.

PHILOSOPHY
Patent Claim 4

Why We Reject Probabilistic Resolution

The industry is rushing toward AI-based 'root cause analysis.' We believe this is dangerous. An AI that guesses right 90% of the time is catastrophic the 10% of the time it is wrong.

Déjà is built on a different axiom: Deterministic Verification. We do not infer. We do not predict. We trace. If we cannot mathematically prove the link between a crash and a fix, we remain silent. We sell certainty, not probability.

Stop solving the same bug twice.

Sarah fixed it three months ago. Don't let a revert erase her work. Deploy institutional memory today.

Zero agents required. Setup takes 5 minutes.