Find where your critical system breaks.
Before production does.
Give Zof one system you cannot afford to have fail. Typically within seven days, you get evidence of where it breaks, why, what holds, and what to fix.
A passing test suite is not proof.
Your most important systems rarely fail the way you expect. Green checks tell you the paths you thought of still work. They say little about what happens when conditions stop being normal.
Where critical systems actually break
- 01
Failing dependencies
A downstream service times out, errors, or answers slowly.
- 02
Malformed responses
A payload arrives incomplete, out of spec, or out of order.
- 03
Degraded infrastructure
Nodes, networks, or data stores run impaired instead of down.
- 04
Race conditions
Concurrent operations interleave in an order nobody planned.
- 05
Unexpected state
Records, sessions, or caches hold values the code never anticipated.
- 06
Capacity pressure
Load climbs past the point where behavior stays predictable.
- 07
Configuration mistakes
A flag, limit, or secret is wrong in exactly one environment.
- 08
Compound failures
Two survivable problems arrive together and stop being survivable.
Which of these apply to your system, and how they are exercised, is agreed with you during scoping.
Give Zof one critical system.
We go deep, not wide.
Pick the system where a failure costs you revenue, customers, or trust. We agree what is in bounds, test it aggressively, and show you where it breaks and where it holds. Along the way Zof begins building its understanding of your system, identifies the critical paths, verifies the failure scenarios that matter, and produces evidence of where reliability exposure exists.
This is a paid, tightly scoped engagement. It is not a free assessment, a product demo, or open ended consulting.
- 01A critical API
- 02A payment flow
- 03An authentication flow
- 04A transaction workflow
- 05An AI agent or AI driven workflow
- 06A distributed service
- 07A customer critical backend workflow
From one system
to evidence you can act on.
Zof does the testing. Your team sets the boundaries and keeps control throughout.
- 01
Scope the system
Together we fix the system, the environment, the boundaries, and what counts as a failure. Scope and price are agreed before work begins.
- 02
Map how it is built
Zof maps the components, dependencies, APIs, and data flows involved, so testing targets how the system actually works.
- 03
Generate failure scenarios
Zof generates tests across the flows, APIs, and integrations in scope, including the failure paths a standard suite leaves out.
- 04
Execute and stress
Targeted fault injection, load and stress runs, and recovery checks exercise service failures, retries, failover, and resource exhaustion.
- 05
Capture evidence
Every scenario records what was tested, when, and what happened, with the logs and artifacts attached.
- 06
Prioritize and recommend
Findings are ranked by severity with reproduction steps and remediation recommendations. We walk your team through them.
What exists when the sprint ends.
Two audiences, one body of evidence. Nothing in the readout is an opinion without a run behind it.
Executive summary
What is at risk, how serious it is, and what to do first.
Prioritized findings
Every failure mode ranked by severity, so effort goes where it matters.
Reliability baseline
A recorded starting point to measure future changes against.
Tested failure scenarios
The full list of what was run, including what held.
Evidence for each finding
Logs, artifacts, and a timeline of what was tested and what happened.
Reproducible results
Reproduction steps for each finding, and how reliably it reproduces.
Remediation recommendations
Concrete changes for each failure mode, in priority order.
Duplicate charge when the payment provider responds after the client timeout
- Scenario
- The provider confirms a capture after the client has timed out. The client retries.
- Expected
- One capture per order. The retry is idempotent.
- Observed
- A second capture is created and the order is marked paid twice.
- Evidence
- Request and response logs, an event timeline, and the state before and after.
- Reproduce
- Same inputs, same result, on every run.
- Recommended
- Enforce idempotency keys on capture and reconcile on timeout.
Your system stays under your control.
You do not have to hand a sensitive system to an outside SaaS. Zof is built for environments where security and control matter, and the deployment model is chosen with you during scoping.
Runs where your system runs
Zof Cloud, a private cloud in a region you approve, your own VPC or VNet, or on premises, including air gapped environments.
No inbound access required
Zof does not require inbound connections to your protected network, and protected execution segments make no external model calls.
Evidence stays where you decide
When Zof runs in your VPC, private cloud, or on premises, test evidence, logs, and application data stay in your execution plane unless you approve egress: local only, sanitized, or metadata only.
Nothing changes without approval
You define what Zof may see, test, propose, and change. Remediation and high risk actions require explicit human authorization, and every action is logged.
Restricted environments can add setup time. We confirm the deployment model and the timeline before the sprint starts.
Read the security overviewSpeed without proof is liability.
Teams ship faster than ever, and very little of that speed arrives with proof that the system holds. An opinion that something works, from a person or from a model, is not evidence. Zof shows what was tested, what happened, what failed, and why.
Evidence, not opinion
Every finding carries the scenario, the observed behavior, and the artifacts behind it.
Reproducible, not anecdotal
Each finding comes with reproduction steps, so your engineers confirm it instead of debating it.
Governed, not unsupervised
Autonomous testing operates inside the boundaries and approvals you set.
Built for systems where failure has a price.
- You operate a system where downtime, a bad release, or a failed transaction has real consequences.
- You want evidence before a launch, a migration, a scale event, or a board level conversation about risk.
- You have an engineering owner who can grant access and act on the findings.
- You are looking for inexpensive, outsourced manual QA. A staffing provider will serve that need better than we will.
- There is no specific system to point at yet. The sprint works because it is narrow.
What system can you not afford to have fail?
Put it in front of Zof.
Tell us about the system, then pick a time for a scoping call with the Zof team.
What happens next
- 01Tell us which system you want tested. It takes about two minutes.
- 02Pick a time for a short scoping call.
- 03We agree scope, environment, and price. Then the sprint starts.
- No commitment until scope and price are agreed
- We typically reply within one business day