jank.ai
The Validation Agent for AI coding

Generation is easy,are the hard parts.

AI coding agents create changes faster than teams can validate them. jank.ai validates and repairs those changes so you can keep shipping.

The best AI friend of every developer.
Designed by Jason Arbon · author of Testing AI · led automation at scale for Google Chrome and Search personalization
WHAT’S BROKENJANK.AI · PRODUCT PREVIEWFLOW STOPS ON DEVELOPER
PROMPT / LOOP
AI CODING AGENT
12 BUGS
DEVELOPER
BLOCKED
BLOCKED
PROMPT / LOOP
AI CODING AGENT
72
JANK VALIDATION AGENT
SHIP
CODING AGENT ← BUGS + FIX PROMPTS
SHIPPED
What slows the next prompt

Fast generation creates a slow cleanup queue.

AI can generate all day. Developers cannot manually check every flow, device, integration, and regression at the same speed.

Happy-path jank

The demo works. Reality doesn’t.

The primary flow passes while empty states, invalid input, interruptions, retries, and recovery paths quietly fail.

Regression jank

One fix breaks three old things.

The requested change works, but nearby behavior, shared components, or previously repaired paths regress.

Interface jank

Looks right on one screen.

Layouts overflow, controls disappear, focus gets lost, and generated UI falls apart across devices and personas.

Integration jank

Plausible code meets real systems.

Invented assumptions about APIs, state, data shapes, dependencies, permissions, and timing fail at the boundaries.

Trust jank

It works—but should it?

Security, privacy, accessibility, and authorization gaps hide behind otherwise convincing generated behavior.

Scale jank

Correct until real load arrives.

Slow paths, wasteful calls, race conditions, and fragile recovery emerge beyond the agent’s tidy development scenario.

Don’t make the developer clean up after every generation.Let the agents find, fix, and revalidate while the developer keeps moving.
The verification asymmetry

Validation is the
Hard Problem of AI.

10× more generated code can create 100× more validation scope. The faster AI builds, the harder it becomes to know what is ready to ship.

AI-generated codeValidation scope needed
AI-generated code versus validation scope neededAI-generated code grows exponentially to ten times its initial volume. Validation scope needed grows quadratically relative to that code volume, reaches one hundred times, and accelerates beyond the page edge. A shaded, widening band and bracket highlight the growing validation gap between the curves. AI capability + adoption over time →Relative growth → 1×1.5×2.5×4×7×10× CODE GENERATED CODE → 10×VALIDATION SCOPE NEEDED → 100× ↗
10× code → 100× validation scopeThe scope needed grows quadratically relative to exponentially growing generated code.
Code → 10×exponential growth in AI-generated implementation
Scope needed → 100×the workload now blocking developer speed
jank.ai brings the speed backagents absorb the validation work before the next prompt or build

Conceptual model—not measured production data—based on the Verification Asymmetry Principle.

Inside the product

The agents close the loop
in front of you.

This is the real Jank plugin workflow: the coding agent hands over the change, Jank runs the right coverage, and fix prompts return automatically.

JANK.AI PLUGIN · SAMPLE CHECKOUT RUNCONNECTED
AI CODING AGENTCLAUDE
DEVELOPER

/jank validate the checkout changes

CODING AGENT

Passing the diff, intent, and changed components to Jank.

JANK FIX PROMPT

Mobile error state is unreachable after a declined payment. Evidence attached.

CODING AGENT

Patched the validation state. Rebuilding and revalidating now.

JANK AGENT PROGRESSLIVE
JANK REMAINING72

Mapping risk across checkout, cart, and payment.

LOCAL · CHANGE RISKPASS
CLOUD · E2E BROWSERSRUN
CLAUDE · REPAIR LOOPFIX
Mobile declined-payment stateReproduced · evidence captured · fix prompt returned
FIXING
4m 12sFULL AGENT LOOP
3AUTOMATIC REPAIRS
08FINAL JANK
READYTO KEEP SHIPPING

Product UI preview using the current Jank plugin flow and a clearly labeled sample run.

The Jank Meter

Know how jank
your code is.

jank.ai shows how much is broken, where it is, and sends every issue back to your coding agent to fix. Lower is better.

1
Measure the jankOne score shows what still needs work.
2
See the evidenceEvery finding is clear and reproducible.
3
Let AI repair itFix, rebuild, and revalidate automatically.
One score—from one change to the whole company.
See how the loop accelerates
For developers

Get out of validation.
Stay in the coding flow.

jank.ai focuses on what just changed, runs the right validations, and sends every failure straight back to Claude for repair.

Recent-change intelligence

Understand the change.

jank.ai reads the diff, assesses risk, and designs focused positive, negative, edge-case, and regression checks.

Local + jank cloud

Run each check where it is fastest.

Fast checks stay local. Browser, integration, and end-to-end flows run in parallel in jank cloud or your private cloud.

Claude repair loop

Send every bug straight to Claude.

Claude gets fix-ready evidence, repairs the code, rebuilds, and sends it back to jank.ai for revalidation.

* A quick reverse proxy lets jank cloud exercise local web pages.

Need the whole product checked? Run all 31 validation aspects from scratch.
See the developer loop
For teams

Unblock production.

jank.ai rolls up finding, fixing, and revalidation across the codebase so teams know what is blocking production—and when the product is good enough to ship.

1
Codebase-wide Jank Score
2
Finding + repair rollup
3
Production-readiness signal
4
Competitor quality benchmark
JANK.AI // TEAM ROLLUPPRODUCT PREVIEW · CODEBASE: COMMERCE
CODEBASE JANK08LOWER IS BETTER // DOWN 41 THIS RELEASE
146issues found by agents
132fixed + revalidated
14known non-blockers
P82quality vs competitors
PRODUCTION READINESSGOOD ENOUGH TO SHIP
checkout agent loop completed
mobile regression repaired + passed
security sweep returned 2 fix prompts

One command.
Right-sized validation.

Start with what changed. Expand to the whole product when risk calls for it.

/jankor ask your coding agent: “validate what you just changed”
01COMMAND/jank
02CHANGE ANALYSISUnderstand what changed. Measure risk.
03TARGETED EXECUTIONGenerate tests from the change. Run them.
04WHOLE PRODUCTFull exploratory + regression runs.31 ASPECTS
TARGET THE CHANGE FIRSTEXPAND COVERAGE WHEN RISK CALLS FOR IT

Speed you can prove.
No validation queue. Continual improvement.

See loop time, repairs, and whether the build is ready to move.

Sample agent validation runGenerated checkout · build 42
4m 12sagent loop time
3automatic repairs
READYto keep shipping
Checkout flow verifiedWebsite agent · 8 user paths
Broken empty state detectedGenerated dashboard · Browser persona
Mobile nav repaired + revalidatedCoding agent · Visual browser
Generated guide passed reviewDocument artifact · Intent check

Ship faster.
Reach production sooner.

Put the missing Validation Agent inside your AI coding workflow.