10 Testing Paradigms.
7-Stage Autonomous Remediation.
One Platform.
NexusQA unifies regression, integration, smoke, visual, performance, accessibility, security, API, exploratory, and load testing within a single architecture. When bugs are found, a 7-stage pipeline triages, plans, reviews, fixes, verifies, and requests human sign-off — autonomously.
10 Ways to Break Your Software
Each paradigm generates structured data that feeds into the quality scorecard, the knowledge graph, and the regression prediction model.
Regression Testing
Playwright across Chromium, Firefox, and WebKit. GraphRAG predicts which tests will fail and reorders execution — highest-risk tests run first. Catch regressions in minutes, not hours.
Integration Testing
Pact consumer-driven contracts validate API agreements between plugins, services, and the gateway. Zod schema validation catches type mismatches before they reach production.
Smoke Testing
Critical-path validation in under 5 minutes. Covers authentication, navigation, CRUD, and billing. A smoke test failure automatically triggers deployment rollback via the canary gate.
Visual Diff Testing
pixelmatch and resemble.js compare screenshots across 3 browser engines at multiple viewports against MinIO-stored baselines. A vision-capable LLM distinguishes meaningful regressions from acceptable changes.
Performance Testing
Lighthouse CI monitors Core Web Vitals: LCP, FID, CLS, TTFB. Bundle size tracking catches bloat early. A 10% degradation automatically generates a QA ticket with before/after metrics.
Accessibility Testing
axe-core WCAG 2.1 AA compliance scanning: semantic HTML, ARIA attributes, keyboard navigation, contrast ratios (4.5:1 minimum), screen reader compatibility, and focus management.
Security Testing
OWASP ZAP DAST scanning for XSS, SQL injection, auth bypass, header security (CSP, HSTS, X-Frame-Options), rate limiting, and session management. Risk level: HIGH — requires explicit approval before execution.
API Testing
Health check monitoring across all service endpoints. Zod response schema validation catches contract drift. Latency tracking at p50, p95, and p99 percentiles with automatic alerting.
Exploratory Testing
Human-driven free exploration with rrweb session recording (complete DOM mutation history for replay). AI suggests focus areas based on code change analysis and historical bug patterns from GraphRAG.
Load Testing
k6 and Artillery simulate concurrent users, stress scenarios, and capacity planning profiles. Auto-scale verification confirms Kubernetes HPA triggers correctly under load.
7 Stages From Bug to Fix
The pipeline's critical innovation is Stage 4: an Opus 4.6 Plan Review Gate that validates remediation plans against six formal criteria with GraphRAG historical context before any code is modified.
Detection
Ingests signals from automated tests, human testers, and nexus-alive infrastructure incidents. Every signal is structured, timestamped, and routed to triage.
AI Triage
Classifies severity, priority, and category. Auto-assigns to the right team member. Links similar bugs via GraphRAG to prevent duplicate work. If severity >= HIGH: triggers AutoResearch.
Plan Generation
Analyzes root cause using GraphRAG historical context. Queries the knowledge graph for prior fix attempts. Generates a fix plan with specific file changes, rationale, and estimated blast radius.
Opus 4.6 Plan Review GateCritical Gate
The critical innovation. Validates the plan against 6 criteria: (P1) Has this approach been tried before? (P2) Is this the root cause or a symptom? >2 patches in 30 days = REJECT. (P3) What is the blast radius? (P4) Does this contradict a deliberate decision? (P5) Confidence level. (P6) Does an existing solution exist? Verdicts: APPROVE, REVISE, or REJECT.
Execution
Creates a branch, commits the fix with a structured commit message, opens a PR with labels and CODEOWNERS-assigned reviewers. Notifies infrastructure monitoring that a fix is in progress.
Verification
5-step verification chain: regression suite, failing tests, visual diff, performance check, verdict analysis. ALL must pass to proceed. Any failure loops back to Stage 3 for re-planning.
Human QA Sign-Off
A tester sees the PR diff, the original bug, and all test results in the tester portal. APPROVE auto-merges and closes the ticket. REJECT sends it back to Stage 3. Every decision is stored in GraphRAG.
Full pipeline cost per remediation cycle
~$0.50–$1.50 in LLM API tokens
One Number That Tells You If Your Software Is Getting Better
The quality scorecard aggregates daily metrics across all testing paradigms into a single quality score. Track pass rate, defect density, code coverage, mean time to resolution (MTTR), and automation ratio — per plugin, per team, or across your entire organization.
- Pass rate trend — are your tests getting greener?
- Defect density — bugs per 1,000 lines of code
- MTTR — how fast do bugs get fixed?
- Automation ratio — how much is human vs. machine?
- Coverage tracking — where are the blind spots?
Pass Rate
94.2%
+2.1%
MTTR
2.4h
-18%
Defect Density
0.8
-0.3
Automation
87%
+5%
Coverage
78%
+4%
Quality Score
8.7/10
+0.4
Illustrative scorecard preview. Actual metrics reflect your test results.
Selectors That Fix Themselves
When a CSS selector breaks because a developer renamed a class or restructured the DOM, NexusQA does not just fail the test — it analyzes the DOM structure, finds the most likely replacement selector using structural similarity, updates the test case, and re-runs. The self-healing is logged with before/after selectors and a confidence score. Low-confidence heals are flagged for human review rather than silently applied.
.btn-submit-v3
Selector broke
[data-testid="submit"]
Auto-healed (95% confidence)
Every QA Operation Is a Skill
NexusQA registers 16 skills in the Nexus Orchestrator. Each skill has a defined execution tier, tool bindings, risk level, and timeout. Adding a new QA workflow means inserting a row in the skill registry — no code changes required.
| Skill | Tier | Risk | Purpose |
|---|---|---|---|
| qa_test_generation | Tier 1 | Low | Generate Playwright tests from natural language |
| qa_bug_triage | Tier 1 | Low | Classify severity, priority, auto-assign |
| qa_plan_review | Tier 1 | Low | Opus 4.6 gate — validate plan against P1-P6 |
| qa_remediation_plan | Tier 2 | Medium | Generate fix plan with root cause analysis |
| qa_remediation_execute | Tier 2 | High | Create branch, commit fix, open PR |
| qa_visual_diff | Tier 2 | Low | Vision-capable LLM visual regression analysis |
| qa_playwright_execute | Tier 2 | Medium | Execute Playwright tests via BullMQ workers |
| qa_security_probe | Tier 2 | High | OWASP ZAP DAST scan — requires approval |
| qa_full_remediation_chain | Tier 3 | High | Full 7-stage pipeline (Stages 2-7) |
| qa_deep_investigation | Tier 3 | Medium | AutoResearch: 4 parallel sub-tasks |
10 Paradigms. 7 Stages. Zero Fragmentation.
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