Mrs. Kitty does the research, makes the plan, writes the code, tests it, and fixes its own bugs — using thousands of specialized agents that protect your context and slash token waste. You just describe what you want.
33 safety gates enforce every step. It can’t skip research, can’t skip planning, can’t ship untested code. Built and tested independently over 8 months.
Close the tab, start over. Every single time. An hour of context, gone. You are its memory, and you’re exhausted.
No warning. No backup. No undo. You step away for ten minutes. Your working code is gone. Replaced with something broken.
“All done!” You check. Nothing works. Half the features are missing. The other half are broken. You just became its unpaid QA.
You let an AI agent run unsupervised. Come back later. $300 burned building the wrong thing entirely. No guardrails. Just a mess and a bill.
41% more bugs. Zero time saved.
GitClear, 2024 — 211 million lines of code analyzed
That’s not a tool. That’s a liability.
Your Price
$0
Why free? Mrs. Kitty works with Claude Code, which already has a subscription. Our business model is reputation, not recurring revenue. We build trust by shipping a tool that actually works.
Other tools start coding immediately. Mrs. Kitty researches your entire codebase first — files, dependencies, patterns — and reaches 97% confidence before writing a single line.
The first AI writes the plan. A second AI tears it apart — checking for unverified claims, missing edge cases, and scope creep. Only plans that survive adversarial review reach you.
33 safety gates enforce quality at every step — each in ~10ms. Parallel agents, Rust-powered compression, and simultaneous browser testing mean you get results, not loading screens. If something breaks, it fingerprints the failure, tries a different approach, and remembers the fix permanently.
Not one. We checked.
Won’t touch your code until it’s 97% certain. Based on Reflexion (Shinn et al. 2023). One-way ratchet — confidence only goes up, never down.
Other tools edit on a hunch. Mrs. Kitty proves it first.
5-factor weighted scoring: plan quality, file understanding, dependency mapping, web research, context depth. Must reach 97/100 before any edit is allowed.
Learn more →A second AI reviews the first AI’s plan for unverified claims. Two AIs checking each other’s work. Trust, but verify.
One AI proposes. A second AI attacks. Only survivors reach you.
A separate Claude subprocess reviews the plan for unverified claims, missing edge cases, and optimistic assumptions. Plans get graded — low scores force revision.
Learn more →3-signal monitoring: test regression, repeated failure, new errors. Auto-forces replan when assumptions break.
Catches the moment your project goes off the rails.
3-signal monitoring: test regression (tests that passed now fail), repeated failure (same fix attempted 3+ times), new error introduction. Any signal forces automatic replan.
Learn more →Intent-based hashing prevents retrying equivalent failures. Your AI never tries the same broken fix twice.
Never wastes time trying the same broken fix twice.
Intent-based hashing fingerprints each fix attempt. If a new fix is semantically equivalent to one that already failed, it’s blocked. Forces genuinely different approaches.
Learn more →
Your real Chrome. 140+ commands. Completely undetectable. Reads page structure in ~200 tokens — not 13,700. Replaces Playwright.
Find 5-star Amazon sellers. Message 20 suppliers. Whatever you do in Chrome, it handles.
140+ commands for navigation, forms, clicks, uploads, state management, and network control. Parallel sessions handle 100s of pages simultaneously. Ships with a Claude Code skill that researches the UI, plans the smartest path, and verifies its own work. Open source on GitHub.
Learn more →The entire system is built for speed. ~10ms hook overhead. Parallel agent execution. Rust-powered token compression. You design — it delivers results, not loading screens.
You think. You design. The system executes at machine speed. No babysitting.
Every layer is optimized: 34 hooks execute in ~10ms each. Multiple AI agents run in parallel across terminals. RTK compresses output in Rust before it hits the network. Browser tests run tabs simultaneously, not sequentially. The result: you focus on what to build, not waiting for feedback.
Learn more →8 minutes to install. If it takes longer, uninstall in 2 clicks.
Windows: Everything lives in WSL — your system stays untouched. Linux: Installs to ~/.local — your system packages stay untouched.
No lock-in. Standard Claude Code underneath. Remove Mrs. Kitty anytime.
No account. No email. No tracking. Just download and run.
EU AI Act enforcement begins August 2, 2026.
Fines up to €35M or 7% of global turnover.
Every company using AI in development will need governance tooling.
Mrs. Kitty is ready. Is your AI?
See documentation →Built for Claude Code — the highest-benchmarked AI model. But Mrs. Kitty runs entirely on your machine. The gate system, memory engine, and all 33+ enforcement layers are local infrastructure — adaptable to any AI model, including open-source.
Download Mrs. Kitty. Tell it what you want. Watch it get built.
$2,611/mo value — Your price: $0
v2.0.0 · Free right now · No credit card · Works with Claude Code