Check Lightning

/check-lightning

Audit Lightning integration. Output findings as structured report.

What This Does

1. Check node sync status
2. Check channel balances (inbound/outbound)
3. Audit peer connectivity
4. Verify invoice generation
5. Review payment routing success rate
6. Check watchtower configuration
7. Output prioritized findings (P0-P3)

This is a primitive. It only investigates and reports. Use /log-lightning-issues to create GitHub issues or /fix-lightning to fix.

Process

1. Node Sync Status (lncli getinfo)

# LND: node info + sync status
lncli --network=testnet getinfo

# CLN alternative
lightning-cli getinfo

2. Channel Balance (inbound/outbound liquidity)

# Channel balances + local/remote liquidity
lncli --network=testnet channelbalance
lncli --network=testnet listchannels

# On-chain wallet balance
lncli --network=testnet walletbalance

# CLN alternative
lightning-cli listfunds
lightning-cli listchannels

3. Peer Connectivity

# Peers connected?
lncli --network=testnet listpeers

# CLN alternative
lightning-cli listpeers

4. Invoice Generation

# Create test invoice (bolt11)
lncli --network=testnet addinvoice --amt 1000 --memo "healthcheck"

# List invoices
lncli --network=testnet listinvoices --max_invoices 5

# CLN alternative
lightning-cli invoice 1000 "healthcheck" "healthcheck"
lightning-cli listinvoices

5. Payment Routing Success Rate

# Forwarding history (route success)
lncli --network=testnet fwdinghistory --max_events 50

# Recent payments
lncli --network=testnet listpayments --max_payments 20

# CLN alternative
lightning-cli listforwards
lightning-cli listpays

6. Watchtower Configuration

# Watchtower info (LND)
lncli --network=testnet tower info 2>/dev/null || echo "No tower info (watchtower off?)"
lncli --network=testnet listtowers 2>/dev/null | head -5

# CLN alternative
lightning-cli listwatchtowers 2>/dev/null | head -5

7. Deep Audit

Spawn lightning-auditor agent for comprehensive review:

• Channel policy sanity (fees, cltv deltas)
• Route liquidity vs payment sizes
• Invoice expiry + preimage handling
• Peer reliability and channel age
• Backup + recovery posture

Output Format

## Lightning Audit

### P0: Critical (Payment Failures)
- Node not synced - Cannot route or pay
- No inbound liquidity - Invoices cannot be paid
- Watchtower disabled on public node

### P1: Essential (Must Fix)
- Peers disconnected or flapping
- High failure rate in forwarding history
- Invoice generation failing (bolt11 invalid)

### P2: Important (Should Fix)
- Low outbound liquidity - Payments often fail
- Fee policy too high for routes
- No channel backups verified
- No monitoring for stuck HTLCs

### P3: Nice to Have
- Optimize channel mix for inbound capacity
- Add more diverse peers
- Track success rate over time

## Current Status
- Sync: Unknown
- Liquidity: Unknown
- Peers: Unknown
- Invoices: Unknown
- Routing: Unknown
- Watchtower: Unknown

## Summary
- P0: 2 | P1: 3 | P2: 4 | P3: 3
- Recommendation: Fix sync + inbound liquidity before routing work

Priority Mapping

Related

• /log-lightning-issues - Create GitHub issues from findings
• /fix-lightning - Fix Lightning issues
• /lightning - Full Lightning lifecycle management
• /check-bitcoin - Bitcoin on-chain audit
• /check-btcpay - BTCPay Server audit
• /check-payments - Multi-provider payment audit