Your AI writes code.
We make sure it works.
AI coding tools move fast and sound confident — but they make mistakes your team might not catch. StableStack spots those problems before they become expensive ones.
Zero setup required
Works on Python, JavaScript, and TypeScript. Free, no signup.
Trusted by teams shipping faster with AI — without the hidden risks
The hidden risk
AI moves fast. Mistakes move faster.
AI sounds confident, even when it's wrong
AI coding assistants can introduce subtle bugs and security gaps that look perfectly fine at first glance. They don't flag their own uncertainty — they just keep going.
Your team can't review everything
When AI generates code at scale, manual review becomes a bottleneck. Important details slip through — and problems often don't surface until something breaks in production.
The result?
Teams ship faster than ever, but with less visibility into what's actually going out the door. Small issues compound into costly fixes, security reviews, and late-night firefighting.
The solution
Automatic quality checks for AI-generated code
StableStack runs in the background, automatically scanning code as it's written. It catches the mistakes that AI tools confidently introduce — so your team can ship with confidence.
Connect your codebase
Takes a few minutes. Works with any setup.
We scan automatically
Every change gets checked. No extra work for your team.
Issues surface early
Problems get flagged before they reach customers.
AI-native workflow
Slash commands for Claude Code. Auto-installed.
Run stablestack once and get powerful slash commands injected directly into Claude Code. Zero config. No plugins. No extensions.
/checkRuns all StableStack quality checks on your codebase and fixes issues inline -- right inside your Claude Code session. No context switching, no copy-pasting error output.
> claude
/check
Found 3 issues. Fixing inline...
SESS002 thread-session-safety -- fixed
ENV001 missing-env-validation -- fixed
AUTH003 jwt-expiry-missing -- fixed
/fix-productionAuto-detects your CI/CD pipeline -- GitHub Actions, Vercel, Amplify, Netlify, and more. Monitors your build, diagnoses failures, and applies fixes until production is green.
> claude
/fix-production
Detected: GitHub Actions + Vercel
Build failed: type error in api/route.ts
Applying fix...
Build passing. Production is green.
Zero setup required
Install StableStack and the slash commands are automatically added to Claude Code. No other tool gives you AI-native commands that work inside your coding agent.
Cost optimization
Same prompt, same result. Stop paying twice.
LLM API calls are expensive and non-deterministic. StableStack's disk cache eliminates redundant calls — same arguments return the same result from local storage, not the API.
Before
# Every call hits the API
summarize("quarterly report")
-> $0.03, 1.2s
summarize("quarterly report")
-> $0.03, 1.1s (same prompt!)
summarize("quarterly report")
-> $0.03, 1.3s (paying again)
After
@cache
def summarize(text): ...
summarize("quarterly report")
-> $0.03, 1.2s (API call)
summarize("quarterly report")
-> $0.00, 0.001s (from cache)
summarize("quarterly report")
-> $0.00, 0.001s (from cache)
One command to install
$ stablestack deterministic-ai
Created stablestack_cache.py
Added .cache/ to .gitignore
Created .claude/commands/deterministic-ai.md
Drops a self-contained stablestack_cache.py into your project. Zero dependencies. Works with OpenAI, Anthropic, or any function you want to cache.
Why it matters
Ship faster, sleep better
Catch problems before customers do
Issues are flagged during development, not after launch. Fewer surprises, fewer fire drills.
Reduce risk without slowing down
Keep the speed benefits of AI tools while adding the safety net your team needs.
Free up your best people
Automated checks handle the routine stuff, so your team can focus on what actually moves the needle.
Build confidence across the organization
When leadership, security, and engineering all have visibility, decisions get easier.
Pricing
Simple, transparent pricing
Start free to see how it works. Upgrade when you're ready for the full picture.
Free
Try it out, no commitment
- 14 essential checks
- Unlimited projects
- No credit card required
Team
For growing companies
- All 105 checks
- Unlimited team members
- Priority support
- Onboarding assistance
Enterprise
For larger organizations
- Everything in Team
- Custom integrations
- Dedicated support
- SLA guarantees
Try it now — free, no signup
Install StableStack and run it on your project. See what your AI might be missing in under a minute.
Questions? Talk to us