AI
Engineer
Need a Human in the Loop?
Save time and improve accuracy by adding a human into the loop.
Two Ways to Use CodeVF
Integrate human expertise via our CLI or a direct API.
Developer API
Programmatically integrate human expertise for reviews, checks, and verification.
Read API Docs →BETA
See It In Action
Claude tries first → Asks engineer to verify → Engineer checks your live site → Tells Claude what to fix → Claude applies it
Your Terminal (Claude or Codex)
> Make the signup form look better
I've updated the form styling. Let me ask an engineer to verify it looks good.
→ Calling CodeVF...
Engineer feedback:
"Form has too much padding - reduce from 32px to 16px"
Got it! Updating the padding now...
✓ Fixed! Changed padding to 16px
Quick verification (normally ~5 minutes from context switching)
1 credit used (~ $0.40)
> █
Behind the Scenesrealtime-instant
1. Claude attempts fix
Updates form.css with new styles
↓
2. Engineer verifies visually
• Views live site via localtunnel
• Spots issue: padding too large
• Tells Claude: "Reduce to 16px"
↓
3. Claude applies feedback
Updates padding to 16px ✓
1 Credit used (Most tests use <5 credits)
Prefer a Real Chat?
Type cvf-chat and talk to a real engineer
Terminal - cvf-chat
> /cvf-chat
Gathering context from Claude...
What's the issue?
> API returning 500 errors in production
✓ Connected to engineer with full context
Engineer:
I see Claude was debugging http 500 errors. Looking at the logs now...
[Engineer reviews code + logs]
Engineer:
Found it! Your connection pool is exhausted. Production DB has a max_connections limit.
Increase pool size to 20 or use pg-pool for connection pooling
You:
Thanks! That fixed it
8 credits used (~$3.20) • 2 credits/min
Developer API
Add Human Engineers to Your Workflow
A simple REST API for human verification in your pipeline.
API Request
POST /api/v1/tasks/create
{
"prompt": "Review auth middleware for security issues",
"projectId": 123,
"mode": "fast",
"maxCredits": 10
}"projectId": 123,
"mode": "fast",
"maxCredits": 10
Webhook notifications
Get instant results when engineers complete tasks
Multiple service modes
Realtime answers, chat sessions, or scheduled reviews
Credit-based billing
Set max credits per task, only pay for what's used
Works with any tool
CI/CD pipelines, IDEs, Claude, or custom integrations