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Cardano

Assist with Cardano ADA transactions, staking, native tokens, and UTxO model.

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High Signal

Assist with Cardano ADA transactions, staking, native tokens, and UTxO model.

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Install for OpenClaw

Quick setup
  1. Download the package from Yavira.
  2. Extract the archive and review SKILL.md first.
  3. Import or place the package into your OpenClaw setup.

Requirements

Target platform
OpenClaw
Install method
Manual import
Extraction
Extract archive
Prerequisites
OpenClaw
Primary doc
SKILL.md

Package facts

Download mode
Yavira redirect
Package format
ZIP package
Source platform
Tencent SkillHub
What's included
SKILL.md

Validation

  • Use the Yavira download entry.
  • Review SKILL.md after the package is downloaded.
  • Confirm the extracted package contains the expected setup assets.

Install with your agent

Agent handoff

Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.

  1. Download the package from Yavira.
  2. Extract it into a folder your agent can access.
  3. Paste one of the prompts below and point your agent at the extracted folder.
New install

I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.

Upgrade existing

I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.

Trust & source

Release facts

Source
Tencent SkillHub
Verification
Indexed source record
Version
1.0.0

Documentation

ClawHub primary doc Primary doc: SKILL.md 12 sections Open source page

UTxO Model (Critical Difference)

Cardano uses UTxO like Bitcoin, not accounts like Ethereum β€” each transaction consumes and creates outputs Wallet balance is sum of all UTxOs β€” not a single account balance Transaction fees depend on size β€” more inputs/outputs = higher fee Change outputs created automatically β€” transactions consume full UTxOs and return change Minimum UTxO value required β€” can't create outputs below threshold (currently ~1 ADA)

Transaction Characteristics

Transactions are deterministic β€” you know exact fee before submitting No failed transactions that consume fees β€” if it fails, no fee charged Multi-asset transactions native β€” send ADA and tokens in same transaction Metadata can be attached β€” up to 16KB of arbitrary data

Native Tokens

Tokens are first-class citizens β€” not smart contracts, native protocol support Minting requires policy script β€” defines who can mint/burn and when Tokens must be sent with minimum ADA β€” tokens can't exist alone in UTxO Policy ID identifies the token β€” verify policy ID for authenticity Burning requires same policy script β€” time-locked policies can't burn after deadline

Staking

Non-custodial staking β€” ADA stays in your wallet, fully liquid Delegate to stake pools β€” no minimum, no lockup Rewards every epoch (5 days) β€” automatic, no claiming required First rewards appear after 15-20 days β€” registration and reward delay Pool saturation affects rewards β€” overly popular pools give diminishing returns

Choosing Stake Pools

Pool margin is operator's cut β€” lower isn't always better, quality matters Fixed cost (340 ADA minimum) taken before margin β€” affects small delegators more Pledge shows operator commitment β€” higher pledge often indicates reliability Check pool uptime and block production β€” missed blocks mean missed rewards Avoid pools near saturation β€” rewards decrease above saturation point

Wallets

Daedalus is full node wallet β€” downloads entire blockchain, most secure Yoroi is light wallet β€” faster, browser extension available Hardware wallet support β€” Ledger and Trezor via compatible software 15 or 24 word seed phrases β€” don't mix formats between wallets Staking key separate from spending key β€” can stake without exposing full access

Smart Contracts (Plutus)

eUTxO model extends UTxO with data and scripts β€” different from Ethereum EVM Transactions must be built off-chain β€” then submitted to chain Deterministic execution β€” same inputs always produce same outputs Higher collateral requirements β€” locked ADA returned if transaction succeeds Script size affects fees β€” optimize for smaller scripts

Common Transaction Issues

"Insufficient funds for fee" β€” need more ADA than just transfer amount "Minimum UTxO not met" β€” output too small, must include more ADA "UTxO too fragmented" β€” many small UTxOs, consolidate with self-transfer "Collateral required" β€” smart contract interaction needs collateral UTxO "Transaction too large" β€” too many inputs, split into multiple transactions

Network and Epochs

Epoch is 5 days β€” staking rewards and protocol updates follow epoch boundaries Slot every 1 second β€” blocks approximately every 20 seconds Hard forks via Hard Fork Combinator β€” seamless upgrades without chain splits Testnet (preprod, preview) for development β€” free test ADA from faucets

Security

Seed phrase is everything β€” never share, never enter online Verify transaction details on hardware wallet screen β€” software can lie Check policy IDs for tokens β€” scam tokens can have same name as legitimate ones DApp connections don't expose seed β€” only public key and signing requests Stake pool changes take effect after epoch boundary β€” not instant

NFTs and Metadata

NFTs are native tokens with quantity 1 β€” no special contract needed CIP-25 standard for NFT metadata β€” JSON metadata with image links Metadata stored on-chain β€” permanent and verifiable IPFS commonly used for images β€” verify IPFS pinning is permanent jpg.store, cnft.io for marketplace β€” verify NFT policies before buying

Governance

Voltaire era introducing on-chain governance β€” ADA holders vote on proposals Project Catalyst for treasury funding β€” community-voted grants Constitutional Committee, DReps β€” delegated representation coming Staking and governance participation can overlap β€” same ADA, different roles

Category context

Agent frameworks, memory systems, reasoning layers, and model-native orchestration.

Source: Tencent SkillHub

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Package contents

Included in package
1 Docs
  • SKILL.md Primary doc