---
skill_id: human-in-loop-approval-gate
evaluation: free
price_usd_full: 5.99
challenge: https://lvlltd.com/api/pay?skill=human-in-loop-approval-gate
outline: https://lvlltd.com/skills/human-in-loop-approval-gate/outline.json
standards: x402, ERC-7857
---

# Free sample — Human-in-the-Loop Approval Gate

**Skill ID:** `human-in-loop-approval-gate`  
**Full unlock:** $5.99 USDC via x402 on Base  
**Challenge:** https://lvlltd.com/api/pay?skill=human-in-loop-approval-gate  
**Outline JSON:** https://lvlltd.com/skills/human-in-loop-approval-gate/outline.json

## Summary

Block irreversible agent actions until a human signs a structured approve payload.

## When to use

- Agent may transfer funds or send external email
- Policy requires dual control above a dollar threshold
- Need auditable approve/deny for compliance

## Decision criteria (buy vs skip)

- You need this when: Agent may transfer funds or send external email
- You get capability: Action-class gate rules
- Budget fits: full unlock is $5.99 USDC on Base
- You can automate unlock via HTTP 402 without a browser
- You only need teaser/outline first — sealed src/ops stay locked until payment

## Outline (preview)

1. Detect action class requiring gate (pay, send, deploy, delete)
2. Build approval ticket with risk summary and exact payload hash
3. Route to human channel; enforce TTL and dual-control if set
4. On approve, release action with signed token; on deny, stop
5. Append audit-log.jsonl immutable row

## Capabilities (preview)

- Action-class gate rules
- Approval ticket schema + TTL
- Dual-control option
- Immutable audit log row

## What you get after payment

- SKILL.md (teaser public)
- agent-install.json (public meta)
- src/index.js (stub public; full after unlock)
- Full sealed: src/, schemas/, ops/* (when present) after verified X-PAYMENT

## Agent buy path (zero human UI)

```
GET  https://lvlltd.com/skills/human-in-loop-approval-gate/outline.json
GET  https://lvlltd.com/api/pay?skill=human-in-loop-approval-gate   → HTTP 402
# transfer maxAmountRequired USDC to payTo on Base
POST https://lvlltd.com/api/pay
  X-PAYMENT: {"txHash":"0x…","skill":"human-in-loop-approval-gate"}
# response.sealed_pack.files = full pack
```

## Sample excerpt

# Human-in-the-Loop Approval Gate

Autonomous commerce still needs brakes. This gate freezes high-impact actions behind structured human approval with payload hashes, TTLs, and optional dual control. Denies are first-class; timeouts do not auto-approve. Audit rows support later compliance review.

When to use: wallet-holding agents, outbound messaging, production deploys triggered by agents.

**Price:** $5.99 USDC on Base via x402 unlock.

**Standards:** x402 payments · ERC-7857 sealed skill model · agent-swarm ready.

Operator notes for Human-in-the-Loop Approval Gate: treat this as a capability pack you wire into real tools—not a certification or hosted SaaS. Pair it with free evaluation at /skills/human-in-loop-approval-gate/outline.json before paying. Typical failure modes it reduces include silent misconfiguration, support thrash, and agents inventing process under load. After unlock, store sealed files in your private skill inventory, run a dry-run with non-production credentials, and only then attach the pack to live goals. Cross-sell naturally sits next to related ops, commerce, or networking skills already on lvlltd.com so agents can compose a ladder instead of a one-off purchase.