Phase 2 live — agentic self-healing

The world's first
purpose-driven
Product Integrity tool.

Shift-Left Agentic QA that deeply analyzes your source code, physically executes end-to-end tests, and auto-generates & heals the entire test suite before a human ever merges it. Zero dashboards. Zero test-rot.

Get early access How it works
85%
heal rate
<2%
selector failures
200+
PRs in beta
85%
Test heal rate
Across 200+ PRs in beta
<2%
Selector failure rate
Down from 15% in legacy suites
3×
Self-correction retries
Before a test is rejected
Zero
Dashboards needed
Fully autonomous — no human in the loop
Process

From PR
to tested
in seconds.

01
Deep Code Crawl
Git repo access lets PrestCode read your full source tree — not just the diff. Extracts component names, data-cy selectors, and maps 14 feature areas for true white-box analysis.
Git repo access · Octokit REST
02
AI Generation
Claude 3.5 Sonnet writes a complete POM Playwright TypeScript spec. No stubs, no placeholders.
Claude 3.5 Sonnet
03
Self-Correction
Validates with tsc --noEmit. Compiler errors feed back to the LLM. Up to 3 retries before rejection.
tsc + LLM loop
04
Auto-Commit
Creates a branch, commits the validated spec, opens a PR with full coverage summary.
GitHub API
Capabilities

Not a linter.
A full QA agent.

Ten production-grade capabilities working in concert — from white-box source crawling to proactive rot prevention. Requires Git repo access to enable white-box analysis, code crawling, and deep product understanding.

Agentic Self-Healing Loop
Validates TypeScript on every generation, feeds compiler errors back to the LLM, and retries — rejecting tests that are empty or semantically hollow.
3 retries · tsc --noEmit
MCP Live Browser Execution
Connects to a @playwright/mcp subprocess, captures a real accessibility tree snapshot, and heals broken selectors against the live DOM in real time.
@playwright/mcp · MCP SDK
Test Rot Detection
Periodically scans all .spec.ts files, cross-references selectors against the live accessibility tree, and auto-commits confidence-scored fixes before CI breaks.
Proactive · no CI failure
Risk-Coverage Mapping
Uses the TypeScript Compiler API to calculate a Churn-to-Coverage Ratio per changed file and flags uncovered high-churn files as high, medium, or low risk.
TS Compiler API
Zero-Config Credentialing
AES-256-GCM encrypted .vault.enc stores credentials that inject directly into BrowserContextOptions. Your secrets are never passed to any LLM.
AES-256-GCM · no LLM exposure
PRD Compliance Engine
Loads .prd.md or figma-specs.json, compares the PR diff against your live page. If a requirement mismatch is found, test generation halts and a warning is posted to the PR.
Gemini 2.0 Flash
Goal-Oriented Spider Agent
Takes a natural-language goal and autonomously navigates, clicks, types, and snapshots your live app in a multi-turn agent loop — up to 10 steps — to find logic gaps and bypass vulnerabilities.
Gemini 2.0 Flash · 10-step loop
PR Intelligence Engine
Maps changed file paths to 14 feature areas. Reads your full source tree via Git access to extract React component names, data-cy selectors, CSS classes, and visible text — enabling true white-box test generation.
Git access · 14 feature areas
Sprint-Aware Scheduling
Understands your sprint cadence and prioritises test generation for high-churn, deadline-critical PRs first. Risk scores surface exactly which untested files will break your release.
TS Compiler API
Interface

Five commands.
Full lifecycle.

The entire testing loop from one terminal. Point at a PR — the rest is automatic.

generate Analyze PR and generate tests
crawl Goal-oriented security spider
analyze Risk-coverage analysis only
rot-check Scan and heal broken selectors
webhook Listen for GitHub PR events
prest generate
The verdict

Built specifically for the
High Speed Engineering Teams

PrestCode doesn't just generate tests — it acts like a senior SDET, a test consultant, a quality shield. It reads your source code, understands your product intent, executes real browser sessions, and keeps every test green sprint after sprint. No manual triage. No stale suites. No ticket backlog.

White-box analysis Live browser execution Pre-merge gate Sprint-aware Zero test-rot Zero dashboards
Head-to-head

Pick a tool.
See the gap.

Select any tool from the AI testing space and see exactly where PrestCode pulls ahead.

PrestCode
Agentic SDET · shifts left · zero dashboards
Our pick
Full source code crawl (white-box)
Goal-oriented spider agent (10 steps)
MCP live browser execution
Autonomous POM Playwright spec generation
Self-healing broken selectors
Pre-merge shift-left gate
PRD compliance engine
Proactive rot detection & auto-fix
Sprint-aware risk-coverage mapping
Credentials never sent to any LLM
✦ Fully autonomous, code-aware, self-healing QA — from PR open to test committed, zero human steps.
VS
Pick a tool above
Select any tool from the AI testing space to load a detailed side-by-side
Full capability matrix — all tools
Capability PrestCode QA Wolf Mabl Testim Decipher AI Applitools CodeRabbit Sauce Labs Cypress Cloud Sweep/Devin
White-box source code analysis ✓ — — — — — ✓ — — ✓
Goal-oriented spider / crawl agent ✓ — — — — — — — — —
Autonomous test generation ✓ ✓ Low-code Record ✓ — Partial — — ✓
Live browser execution ✓ ✓ ✓ ✓ ✓ ✓ — ✓ ✓ —
Self-healing broken selectors ✓ Partial ✓ ✓ ✓ — — — — —
Pre-merge shift-left gate ✓ — — — — — ✓ — — —
PRD / spec compliance check ✓ — — — — — — — — —
Proactive rot detection ✓ — Alert only — — — — — — —
Visual regression testing Roadmap — ✓ — ✓ ✓ — — — —
Sprint-aware risk mapping ✓ — — — — — — — — —
Credentials never sent to LLM ✓ N/A N/A N/A N/A N/A N/A N/A N/A —
Zero dashboards / zero config ✓ — — — — — — — — —
Pricing

Simple pricing.

Starter
$0 / month

For individuals and open-source teams. No credit card required.

  • 20 PR tests per month
  • AI test generation
  • Self-correction loop
  • GitHub PR auto-commit
Enterprise
$149 / month

For engineering teams. Unlimited seats, all capabilities.

  • Full team PR coverage
  • MCP live browser execution
  • Proactive rot detection
  • Risk-coverage mapping
  • PRD compliance engine
  • AES-256 vault — secrets never to LLM
  • GitHub webhook auto-trigger
  • Priority support
Scale
Custom

For large orgs with compliance requirements and dedicated infrastructure needs.

  • Everything in Enterprise
  • Dedicated infrastructure
  • SOC2 Type I/II (roadmap)
  • Multi-language support (roadmap)
  • SLA + dedicated CSM
Early access open

Stop maintaining tests.
Start shipping faster.

Every PR your team opens, covered, validated, and committed automatically.

Get early access View documentation

Free tier: 20 PR tests / month  ·  No credit card required