# Send Cardano to your agent Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually. ## Fast path - Download the package from Yavira. - Extract it into a folder your agent can access. - Paste one of the prompts below and point your agent at the extracted folder. ## Suggested prompts ### New install ```text 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 ```text 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. ``` ## Machine-readable fields ```json { "schemaVersion": "1.0", "item": { "slug": "cardano", "name": "Cardano", "source": "tencent", "type": "skill", "category": "AI 智能", "sourceUrl": "https://clawhub.ai/ivangdavila/cardano", "canonicalUrl": "https://clawhub.ai/ivangdavila/cardano", "targetPlatform": "OpenClaw" }, "install": { "downloadUrl": "/downloads/cardano", "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=cardano", "sourcePlatform": "tencent", "targetPlatform": "OpenClaw", "packageFormat": "ZIP package", "primaryDoc": "SKILL.md", "includedAssets": [ "SKILL.md" ], "downloadMode": "redirect", "sourceHealth": { "source": "tencent", "slug": "cardano", "status": "healthy", "reason": "direct_download_ok", "recommendedAction": "download", "checkedAt": "2026-04-30T06:15:23.471Z", "expiresAt": "2026-05-07T06:15:23.471Z", "httpStatus": 200, "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=cardano", "contentType": "application/zip", "probeMethod": "head", "details": { "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=cardano", "contentDisposition": "attachment; filename=\"cardano-1.0.0.zip\"", "redirectLocation": null, "bodySnippet": null, "slug": "cardano" }, "scope": "item", "summary": "Item download looks usable.", "detail": "Yavira can redirect you to the upstream package for this item.", "primaryActionLabel": "Download for OpenClaw", "primaryActionHref": "/downloads/cardano" }, "validation": { "installChecklist": [ "Use the Yavira download entry.", "Review SKILL.md after the package is downloaded.", "Confirm the extracted package contains the expected setup assets." ], "postInstallChecks": [ "Confirm the extracted package includes the expected docs or setup files.", "Validate the skill or prompts are available in your target agent workspace.", "Capture any manual follow-up steps the agent could not complete." ] } }, "links": { "detailUrl": "https://openagent3.xyz/skills/cardano", "downloadUrl": "https://openagent3.xyz/downloads/cardano", "agentUrl": "https://openagent3.xyz/skills/cardano/agent", "manifestUrl": "https://openagent3.xyz/skills/cardano/agent.json", "briefUrl": "https://openagent3.xyz/skills/cardano/agent.md" } } ``` ## Documentation ### UTxO Model (Critical Difference) Cardano uses UTxO like Bitcoin, not accounts like Ethereum — each transaction consumes and creates outputs Wallet balance is sum of all UTxOs — not a single account balance Transaction fees depend on size — more inputs/outputs = higher fee Change outputs created automatically — transactions consume full UTxOs and return change Minimum UTxO value required — can't create outputs below threshold (currently ~1 ADA) ### Transaction Characteristics Transactions are deterministic — you know exact fee before submitting No failed transactions that consume fees — if it fails, no fee charged Multi-asset transactions native — send ADA and tokens in same transaction Metadata can be attached — up to 16KB of arbitrary data ### Native Tokens Tokens are first-class citizens — not smart contracts, native protocol support Minting requires policy script — defines who can mint/burn and when Tokens must be sent with minimum ADA — tokens can't exist alone in UTxO Policy ID identifies the token — verify policy ID for authenticity Burning requires same policy script — time-locked policies can't burn after deadline ### Staking Non-custodial staking — ADA stays in your wallet, fully liquid Delegate to stake pools — no minimum, no lockup Rewards every epoch (5 days) — automatic, no claiming required First rewards appear after 15-20 days — registration and reward delay Pool saturation affects rewards — overly popular pools give diminishing returns ### Choosing Stake Pools Pool margin is operator's cut — lower isn't always better, quality matters Fixed cost (340 ADA minimum) taken before margin — affects small delegators more Pledge shows operator commitment — higher pledge often indicates reliability Check pool uptime and block production — missed blocks mean missed rewards Avoid pools near saturation — rewards decrease above saturation point ### Wallets Daedalus is full node wallet — downloads entire blockchain, most secure Yoroi is light wallet — faster, browser extension available Hardware wallet support — Ledger and Trezor via compatible software 15 or 24 word seed phrases — don't mix formats between wallets Staking key separate from spending key — can stake without exposing full access ### Smart Contracts (Plutus) eUTxO model extends UTxO with data and scripts — different from Ethereum EVM Transactions must be built off-chain — then submitted to chain Deterministic execution — same inputs always produce same outputs Higher collateral requirements — locked ADA returned if transaction succeeds Script size affects fees — optimize for smaller scripts ### Common Transaction Issues "Insufficient funds for fee" — need more ADA than just transfer amount "Minimum UTxO not met" — output too small, must include more ADA "UTxO too fragmented" — many small UTxOs, consolidate with self-transfer "Collateral required" — smart contract interaction needs collateral UTxO "Transaction too large" — too many inputs, split into multiple transactions ### Network and Epochs Epoch is 5 days — staking rewards and protocol updates follow epoch boundaries Slot every 1 second — blocks approximately every 20 seconds Hard forks via Hard Fork Combinator — seamless upgrades without chain splits Testnet (preprod, preview) for development — free test ADA from faucets ### Security Seed phrase is everything — never share, never enter online Verify transaction details on hardware wallet screen — software can lie Check policy IDs for tokens — scam tokens can have same name as legitimate ones DApp connections don't expose seed — only public key and signing requests Stake pool changes take effect after epoch boundary — not instant ### NFTs and Metadata NFTs are native tokens with quantity 1 — no special contract needed CIP-25 standard for NFT metadata — JSON metadata with image links Metadata stored on-chain — permanent and verifiable IPFS commonly used for images — verify IPFS pinning is permanent jpg.store, cnft.io for marketplace — verify NFT policies before buying ### Governance Voltaire era introducing on-chain governance — ADA holders vote on proposals Project Catalyst for treasury funding — community-voted grants Constitutional Committee, DReps — delegated representation coming Staking and governance participation can overlap — same ADA, different roles ## Trust - Source: tencent - Verification: Indexed source record - Publisher: ivangdavila - Version: 1.0.0 ## Source health - Status: healthy - Item download looks usable. - Yavira can redirect you to the upstream package for this item. - Health scope: item - Reason: direct_download_ok - Checked at: 2026-04-30T06:15:23.471Z - Expires at: 2026-05-07T06:15:23.471Z - Recommended action: Download for OpenClaw ## Links - [Detail page](https://openagent3.xyz/skills/cardano) - [Send to Agent page](https://openagent3.xyz/skills/cardano/agent) - [JSON manifest](https://openagent3.xyz/skills/cardano/agent.json) - [Markdown brief](https://openagent3.xyz/skills/cardano/agent.md) - [Download page](https://openagent3.xyz/downloads/cardano)