How do I install the Cardano CLI Transactions Operator skill?

Run npx skillmds@latest add input-output-hk/cardano-cli-transactions-operator in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Cardano CLI Transactions Operator safe to use?

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Which AI agents work with Cardano CLI Transactions Operator?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Cardano CLI Transactions Operator free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Cardano CLI Transactions Operator?

input-output-hk (@input-output-hk) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Cardano CLI Transactions Operator by input-output-hk

Name: Cardano CLI Transactions Operator
Author: input-output-hk

File contents

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

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

Step 2: Query UTxOs

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

Step 3: Fetch protocol parameters

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

Step 4: Build transaction

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)

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:

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

Step 7: Verify

# 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

---name: cardano-cli-transactions-operatordescription: Execute transaction builds and submits. Manual invoke only—requires explicit confirmation before submit.---# 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```bashTX_DIR="tx-$(date +%Y%m%d-%H%M%S)"mkdir -p "$TX_DIR" && cd "$TX_DIR"```### Step 2: Query UTxOs```bashcardano-cli conway query utxo \ --address <sender-addr> \ --testnet-magic 1 \ --out-file utxos.json```### Step 3: Fetch protocol parameters```bashcardano-cli conway query protocol-parameters \ --testnet-magic 1 \ --out-file pparams.json```### Step 4: Build transaction```bashcardano-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)```bashecho "=== 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: preprodSending: X ADA to addr_test1...From: addr_test1...Type 'yes' to submit:``````bashcardano-cli conway transaction submit \ --testnet-magic 1 \ --tx-file tx.signed```### Step 7: Verify```bash# Get tx hashcardano-cli conway transaction txid --tx-file tx.signed# Query recipient UTxOcardano-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`

Frequently asked questions

Cardano CLI Transactions Operator