# Send A2A Vault 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": "a2a-vault",
    "name": "A2A Vault",
    "source": "tencent",
    "type": "skill",
    "category": "其他",
    "sourceUrl": "https://clawhub.ai/Paparusi/a2a-vault",
    "canonicalUrl": "https://clawhub.ai/Paparusi/a2a-vault",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/a2a-vault",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=a2a-vault",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "a2a-vault",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-29T01:33:57.515Z",
      "expiresAt": "2026-05-06T01:33:57.515Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=a2a-vault",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=a2a-vault",
        "contentDisposition": "attachment; filename=\"a2a-vault-2.0.0.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "a2a-vault"
      },
      "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/a2a-vault"
    },
    "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/a2a-vault",
    "downloadUrl": "https://openagent3.xyz/downloads/a2a-vault",
    "agentUrl": "https://openagent3.xyz/skills/a2a-vault/agent",
    "manifestUrl": "https://openagent3.xyz/skills/a2a-vault/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/a2a-vault/agent.md"
  }
}
```
## Documentation

### A2A Vault (PassBox)

Zero-knowledge secrets management. Store API keys, tokens, and credentials with client-side encryption. The server never sees plaintext values.

### Quick Start

Store a secret:

Use passbox_set_secret with vault "my-project", key "API_KEY", value "sk-abc123"

Retrieve a secret:

Use passbox_get_secret with vault "my-project", key "API_KEY"

### Secret Operations

ToolDescriptionpassbox_get_secretRetrieve and decrypt a secretpassbox_set_secretCreate or update a secret (encrypted before upload)passbox_list_secretsList secret names (values not returned)passbox_delete_secretDelete a secretpassbox_rotate_secretTrigger manual secret rotation

### Vault Management

ToolDescriptionpassbox_list_vaultsList all available vaultspassbox_list_environmentsList environments (dev, staging, prod)passbox_get_environmentGet all secrets in an environment

### .env Integration

ToolDescriptionpassbox_diff_envCompare local .env with vault secretspassbox_import_envImport .env file into vault

### Set up project credentials

passbox_list_vaults — see existing vaults
passbox_set_secret — store each credential
passbox_list_secrets — verify all keys are stored

### Sync .env with vault

Read your local .env file
passbox_diff_env — see what's different
passbox_import_env — push local secrets to vault

### Environment promotion

passbox_get_environment for "dev"
Review values
passbox_set_secret for each key in "staging"

### Credential injection

Use with a2a_secure_execute to automatically inject secrets:

Use a2a_secure_execute with toolId "my-api-tool" and input { "apiKey": "{{API_KEY}}" }, vault "my-project"

The {{API_KEY}} placeholder is resolved from PassBox before execution.

### Security Model

Client-side encryption: Values are encrypted before leaving your device
Zero-knowledge: The server stores only ciphertext
Environment isolation: dev/staging/prod secrets are fully separated
Audit trail: All access is logged
Secret rotation: Built-in rotation support with webhooks
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: Paparusi
- Version: 2.0.0
## 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: 2026-04-29T01:33:57.515Z
- Expires at: 2026-05-06T01:33:57.515Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/a2a-vault)
- [Send to Agent page](https://openagent3.xyz/skills/a2a-vault/agent)
- [JSON manifest](https://openagent3.xyz/skills/a2a-vault/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/a2a-vault/agent.md)
- [Download page](https://openagent3.xyz/downloads/a2a-vault)