---
skill_id: eeg-closed-loop-controller
evaluation: free
price_usd_full: 9.99
challenge: https://lvlltd.com/api/pay?skill=eeg-closed-loop-controller
outline: https://lvlltd.com/skills/eeg-closed-loop-controller/outline.json
standards: x402, ERC-7857
---

# Free sample — EEG Closed-Loop Controller

**Skill ID:** `eeg-closed-loop-controller`  
**Full unlock:** $9.99 USDC via x402 on Base  
**Challenge:** https://lvlltd.com/api/pay?skill=eeg-closed-loop-controller  
**Outline JSON:** https://lvlltd.com/skills/eeg-closed-loop-controller/outline.json

## Summary

EEG band powers to intensity-clamped safe AVE control law with simulation path and hard safety gates.

## When to use

- Shipping adaptive biofeedback sessions
- Need explainable control (not black-box wellness)
- Demo closed-loop for grants without hardware

## Decision criteria (buy vs skip)

- You need this when: Shipping adaptive biofeedback sessions
- You get capability: Closed-loop control law
- Budget fits: full unlock is $9.99 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. Calibrate then stream/sim then map powers then AVE protocol
2. Target bands: gamma, beta, alpha, theta, smr
3. Quality-scaled gain and intensity clamps
4. Audio-only AVE with typed risk ack
5. JSONL session evidence logs

## Capabilities (preview)

- Closed-loop control law
- Simulation harness
- Safety-gated AVE handoff
- Voice-friendly session entry

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

## Sample excerpt

# EEG Closed-Loop Controller

**Skill ID:** `eeg-closed-loop-controller`  
**Price:** $9.99 USDC on Base (x402)  
**Category:** Neurotech  
**Free eval:** [/skills/eeg-closed-loop-controller/outline.json](/skills/eeg-closed-loop-controller/outline.json)

## Summary

EEG band powers to intensity-clamped safe AVE control law with simulation path and hard safety gates.

## Full description

Closed-loop controller connecting OpenBCI dual-board EEG adaptive calibration to safe AVE: explainable control law intensity = clamp(base + gain * (target_band - mean_others) * quality), voice commands gamma/beta/cyton gamma, full simulation without hardware.

## When to use

- Shipping adaptive biofeedback sessions
- Need explainable control (not black-box wellness)
- Demo closed-loop for grants without hardware

## Outline (what you get after unlock)

1. Calibrate then stream/sim then map powers then AVE protocol
2. Target bands: gamma, beta, alpha, theta, smr
3. Quality-scaled gain and intensity clamps
4. Audio-only AVE with typed risk ack
5. JSONL session evidence logs

## Capabilities

- Closed-loop control law
- Simulation harness
- Safety-gated AVE handoff
- Voice-friendly session entry

## Artifacts

- `control-law.md`
- `closed-loop-api.md`
- `session-evidence-schema.json`
- `voice-command-map.md`

## Safety and SSI/PASS

- Not a medical device or clinical treatment.
- Photosensitivity risk applies to any AVE/visual paths — typed confirmation required in operators.
- Never subliminal or hidden monitor pulsing (reject US6506148B2-style techniques).
- Personal EEG thresholds stay local by default (SSI/PASS).

## Agent purchase path

```
GET https://lvlltd.com/skills/eeg-closed-loop-controller/outline.json
GET https://lvlltd.com/api/pay?skill=eeg-closed-loop-controller
# Transfer maxAmountRequired USDC on Base to payTo
POST https://lvlltd.com/api/pay
X-PAYMENT: {"txHash":"0x…","skill":"eeg-closed-loop-controller"}
```

## Implementation notes for agents

After unlock you receive structured runbooks, JSON schemas, and a Node entrypoint (`src/index.js`) with `createSkill()`, `listTools()`, and `executeTool()`. Wire tools into your orchestrator with hard budgets and human-in-

…(remainder sealed after x402 unlock)…