Déjà
AI-powered incident resolution platform that automatically links current errors to past proven fixes using cryptographic verification.
| What is it | AI-powered incident resolution platform that automatically links current errors to past proven fixes using cryptographic verification. |
|---|---|
| Pricing | Freemium — from $299/mo |
| Free tier | Yes |
| Platform | Web Application |
| API | Yes |
| Best for | resolving repeat production incidents, maintaining institutional knowledge across employee turnover |
| Domain registered | 2015 |
Data updated Aug. 1, 2026
What does Déjà do?
Wallow is an AI-powered platform designed specifically for engineering teams dealing with production incidents. It works by creating a cryptographic chain of custody between error occurrences and their resolutions. When a system failure happens, Wallow analyzes the crash signature - stripping away ephemeral data like timestamps and memory addresses to create a unique fingerprint of the execution path. It then matches this fingerprint against previously resolved incidents using SHA-256 hashing, ensuring only proven fixes are suggested.
What makes Wallow stand out is its zero-hallucination approach. Unlike tools that might guess at solutions, Wallow only surfaces resolutions that have cryptographic proof of working. The platform integrates with your existing workflow tools like GitHub, Slack, and Jira, automatically linking stack traces to the specific commits, PR comments, and discussion threads that resolved similar issues in the past. It includes multiple validation gates that check whether a fix actually modified the problematic code paths and whether the error rate dropped to zero after implementation.
Engineering teams in regulated environments or organizations with high employee turnover benefit most from Wallow. When a senior engineer leaves, their troubleshooting knowledge doesn't disappear with them. The platform is particularly valuable for companies facing SOC 2 or ISO 27001 audits, as it provides verifiable evidence of incident resolution processes. Teams can resolve repeat incidents 60-90% faster by leveraging proven fixes rather than re-investigating problems that have already been solved.
Key features
What makes it stand outWho is Déjà for?
Who benefits most from this toolPricing
Free tier available — start without a credit cardStandard
- 90-day rolling memory window
- Live Indexing Only (No Backfill)
- Surfaces proven fixes
Business
Everything in Standard, plus:
- 2-Year Historical Forensic Index
- Full-Stack Trace Hashing
- Advanced validation gates
- Slack & PagerDuty integration
- Priority support
Enterprise
Everything in Business, plus:
- Unlimited Retention & Legal Hold
- Self-hosted / VPC options
- Custom validation gates
- SSO (Okta/SAML) & audit logs
- SLA & security review
Trust & presence
Gallery
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