# Send Hedera Transaction Builder 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": "hedera-tx-builder",
    "name": "Hedera Transaction Builder",
    "source": "tencent",
    "type": "skill",
    "category": "开发工具",
    "sourceUrl": "https://clawhub.ai/HarleysCodes/hedera-tx-builder",
    "canonicalUrl": "https://clawhub.ai/HarleysCodes/hedera-tx-builder",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/hedera-tx-builder",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=hedera-tx-builder",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "hedera-tx-builder",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-05-04T03:04:15.887Z",
      "expiresAt": "2026-05-11T03:04:15.887Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=hedera-tx-builder",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=hedera-tx-builder",
        "contentDisposition": "attachment; filename=\"hedera-tx-builder-1.0.0.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "hedera-tx-builder"
      },
      "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/hedera-tx-builder"
    },
    "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/hedera-tx-builder",
    "downloadUrl": "https://openagent3.xyz/downloads/hedera-tx-builder",
    "agentUrl": "https://openagent3.xyz/skills/hedera-tx-builder/agent",
    "manifestUrl": "https://openagent3.xyz/skills/hedera-tx-builder/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/hedera-tx-builder/agent.md"
  }
}
```
## Documentation

### Setup

npm install @hashgraph/sdk

### Client Setup

import { Client, AccountBalanceQuery, Hbar } from '@hashgraph/sdk';

const client = Client.forMainnet();
// Or for testnet:
const client = Client.forTestnet();

### Transfer HBAR

import { TransferTransaction, Hbar } from '@hashgraph/sdk';

const tx = new TransferTransaction()
  .addHbarTransfer(fromAccountId, new Hbar(-100)) // send
  .addHbarTransfer(toAccountId, new Hbar(100))    // receive
  .setTransactionMemo("Payment for goods");

// Sign with hashpack or operator
const signTx = await tx.sign(operatorKey);
const result = await signTx.execute(client);

### AccountCreate

new AccountCreateTransaction()
  .setKey(publicKey)
  .setInitialBalance(new Hbar(10))
  .setAccountMemo("My account");

### TokenAssociate

new TokenAssociateTransaction()
  .setAccountId(accountId)
  .setTokenIds([tokenId1, tokenId2]);

### TopicMessage

new TopicMessageTransaction()
  .setTopicId(topicId)
  .setMessage("Hello Hedera!");

### Network Endpoints

Mainnet: https://mainnet.hashio.io/api
Testnet: https://testnet.hashio.io/api

### Important Concepts

Hbar: 1 HBAR = 100,000,000 tinybars
Account ID: Format shard.realm.num (e.g., 0.0.12345)
Transaction Fee: Small HBAR fee for each transaction
Transaction Valid Duration: 180 seconds by default
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: HarleysCodes
- 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: 2026-05-04T03:04:15.887Z
- Expires at: 2026-05-11T03:04:15.887Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/hedera-tx-builder)
- [Send to Agent page](https://openagent3.xyz/skills/hedera-tx-builder/agent)
- [JSON manifest](https://openagent3.xyz/skills/hedera-tx-builder/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/hedera-tx-builder/agent.md)
- [Download page](https://openagent3.xyz/downloads/hedera-tx-builder)