# Cardano CLI Transactions Operator

> Execute transaction builds and submits. Manual invoke only—requires explicit confirmation before submit.

- Skill: `majiayu000/cardano-cli-transactions-operator` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/cardano-cli-transactions-operator`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/cardano-cli-transactions-operator/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/cardano-cli-transactions-operator

---


# cardano-cli-transactions-operator

> **OPERATOR SKILL**: This skill executes commands including transaction submission. Requires explicit human invocation.

## When to use

- When ready to build and submit a transaction
- After reviewing guidance from `cardano-cli-transactions`

## Operating rules (must follow)

- Confirm network before ANY operation
- Show full transaction details before signing
- **REQUIRE explicit "yes" confirmation before submit**
- Create tx bundle folder for reproducibility
- Verify UTxO changes after submit

## Pre-flight checklist

```
[ ] Network confirmed: ___________
[ ] Sender address verified
[ ] Recipient address verified (check first/last 8 chars)
[ ] Amount confirmed: ___________ lovelace
[ ] Signing key path confirmed
[ ] UTxO inputs selected
```

## Execution workflow

### Step 1: Setup tx bundle

```bash
TX_DIR="tx-$(date +%Y%m%d-%H%M%S)"
mkdir -p "$TX_DIR" && cd "$TX_DIR"
```

### Step 2: Query UTxOs

```bash
cardano-cli conway query utxo \
  --address <sender-addr> \
  --testnet-magic 1 \
  --out-file utxos.json
```

### Step 3: Fetch protocol parameters

```bash
cardano-cli conway query protocol-parameters \
  --testnet-magic 1 \
  --out-file pparams.json
```

### Step 4: Build transaction

```bash
cardano-cli conway transaction build \
  --testnet-magic 1 \
  --tx-in <utxo>#<index> \
  --tx-out <recipient>+<amount> \
  --change-address <sender> \
  --out-file tx.unsigned
```

### Step 5: Sign (show what's being signed)

```bash
echo "=== SIGNING TRANSACTION ==="
echo "Inputs: <utxo>"
echo "Output: <recipient> receives <amount> lovelace"
echo "Change: returns to <sender>"

cardano-cli conway transaction sign \
  --tx-file tx.unsigned \
  --signing-key-file <payment.skey> \
  --testnet-magic 1 \
  --out-file tx.signed
```

### Step 6: Submit (REQUIRES CONFIRMATION)

```
⚠️  CONFIRM SUBMISSION ⚠️
Network: preprod
Sending: X ADA to addr_test1...
From: addr_test1...

Type 'yes' to submit:
```

```bash
cardano-cli conway transaction submit \
  --testnet-magic 1 \
  --tx-file tx.signed
```

### Step 7: Verify

```bash
# Get tx hash
cardano-cli conway transaction txid --tx-file tx.signed

# Query recipient UTxO
cardano-cli conway query utxo \
  --address <recipient> \
  --testnet-magic 1
```

## Safety / key handling

- Never submit without explicit user confirmation
- For mainnet: require double confirmation
- Keep tx bundle for audit trail
- Recommend small test tx first on mainnet

## References

- `cardano-cli-transactions` (guidance skill)
- `shared/PRINCIPLES.md`