# Send Skill 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": "aster",
    "name": "Skill",
    "source": "tencent",
    "type": "skill",
    "category": "开发工具",
    "sourceUrl": "https://clawhub.ai/satyajiit/aster",
    "canonicalUrl": "https://clawhub.ai/satyajiit/aster",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/aster",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=aster",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "aster",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-05-08T20:42:17.961Z",
      "expiresAt": "2026-05-15T20:42:17.961Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=aster",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=aster",
        "contentDisposition": "attachment; filename=\"aster-0.1.14.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "aster"
      },
      "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/aster"
    },
    "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/aster",
    "downloadUrl": "https://openagent3.xyz/downloads/aster",
    "agentUrl": "https://openagent3.xyz/skills/aster/agent",
    "manifestUrl": "https://openagent3.xyz/skills/aster/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/aster/agent.md"
  }
}
```
## Documentation

### Aster - Your AI CoPilot on Mobile

Your AI CoPilot for any Android device using MCP (Model Context Protocol) — or give your AI a dedicated phone and let it call, text, and act on its own. Fully open source and privacy-first — your data never leaves your network.

Website: aster.theappstack.in | GitHub: github.com/satyajiit/aster-mcp

For screenshots of the Android app and web dashboard, visit aster.theappstack.in.

### Setup

Install and start the server:

npm install -g aster-mcp
aster start

Install the Aster Android app on any Android device — your daily phone or a spare one for your AI — from Releases and connect to the server address shown in terminal.


Configure MCP in your .mcp.json:

{
  "mcpServers": {
    "aster": {
      "type": "http",
      "url": "http://localhost:5988/mcp"
    }
  }
}

### Security & Privacy

Aster is built with a security-first, privacy-first architecture:

Self-Hosted — Runs entirely on your local machine. No cloud servers, no third-party relays. Your data stays on your network.
Zero Telemetry — No analytics, no tracking, no usage data collection. What you do stays with you.
Device Approval — Every new device must be manually approved from the dashboard before it can connect or execute commands.
Tailscale Integration — Optional encrypted mesh VPN via Tailscale with WireGuard. Enables secure remote access with automatic TLS (WSS) — no port forwarding required.
No Root Required — Uses the official Android Accessibility Service API (same system powering screen readers). No rooting, no ADB hacks, no exploits. Every action is permission-gated and sandboxed.
Foreground Transparency — Always-visible notification on your Android device when the service is running. No silent background access.
Local Storage Only — All data (device info, logs) stored in a local SQLite database. Nothing is sent externally.
100% Open Source — MIT licensed, fully auditable codebase. Inspect every line of code on GitHub.

### Device & Screen

aster_list_devices - List connected devices
aster_get_device_info - Get device details (battery, storage, specs)
aster_take_screenshot - Capture screenshots
aster_get_screen_hierarchy - Get UI accessibility tree

### Input & Interaction

aster_input_gesture - Tap, swipe, long press
aster_input_text - Type text into focused field
aster_click_by_text - Click element by text
aster_click_by_id - Click element by view ID
aster_find_element - Find UI elements
aster_global_action - Back, Home, Recents, etc.

### Apps & System

aster_launch_intent - Launch apps or intents
aster_list_packages - List installed apps
aster_read_notifications - Read notifications
aster_read_sms - Read SMS messages
aster_send_sms - Send an SMS text message to a phone number
aster_get_location - Get GPS location
aster_execute_shell - Run shell commands in Android app sandbox (no root, restricted to app data directory and user-accessible storage, 30s timeout, 1MB output limit)

### Files & Storage

aster_list_files - List directory contents
aster_read_file - Read file content
aster_write_file - Write to file
aster_delete_file - Delete file
aster_analyze_storage - Storage analysis
aster_find_large_files - Find large files
aster_search_media - Search photos/videos with natural language

### Device Features

aster_get_battery - Battery info
aster_get_clipboard / aster_set_clipboard - Clipboard access
aster_show_toast - Show toast message
aster_speak_tts - Text-to-speech
aster_vibrate - Vibrate device
aster_play_audio - Play audio
aster_post_notification - Post notification
aster_make_call - Initiate phone call
aster_make_call_with_voice - Make a call, enable speakerphone, and speak AI text via TTS after pickup
aster_show_overlay - Show web overlay on device

### Media Intelligence

aster_index_media_metadata - Extract photo/video EXIF metadata
aster_search_media - Search photos/videos with natural language queries

### Proactive Event Forwarding (OpenClaw Callbacks)

Aster can push real-time events from the phone to your AI agent via webhook. When enabled, these events arrive as HTTP POST payloads — your agent doesn't need to poll, the phone tells you what's happening.

Configure via the dashboard at /settings/openclaw or CLI: aster set-openclaw-callbacks.

### Webhook Format

Events are sent as HTTP POST to the configured OpenClaw endpoint (/hooks/agent by default). The AI reads the message field. All event context is packed into message using standardized [key] value tags.

Example raw HTTP POST payload for a notification event:

{
  "message": "[skill] aster\\n[event] notification\\n[device_id] 6241e40fb71c0cf7\\n[model] samsung SM-S938B, Android 16\\n[data-app] messaging\\n[data-package] com.google.android.apps.messaging\\n[data-title] John\\n[data-text] Hey, are you free tonight?",
  "wakeMode": "now",
  "deliver": true,
  "channel": "whatsapp",
  "to": "+1234567890"
}

message — structured event text with standard headers (this is what the AI reads)
wakeMode — always "now" (wake the agent immediately)
deliver — always true for real events, false for test pings
channel / to — delivery channel and recipient, configured in the dashboard

### Event Format

Every event follows a standardized structure with 4 fixed headers and [data-*] fields:

[skill] aster
[event] <event_name>
[device_id] <device_uuid>
[model] <manufacturer model, Android version>
[data-key] value
[data-key] value

[skill] — always aster
[event] — event name: sms, notification, device_online, device_offline, pairing
[device_id] — UUID of the device (use this to target the device with Aster tools)
[model] — device manufacturer, model, and OS
[data-*] — event-specific fields, each prefixed with data- (e.g. [data-app], [data-sender])

### Event Types

sms — Incoming SMS

[skill] aster
[event] sms
[device_id] a1b2c3d4-5678-90ab
[model] samsung SM-S938B, Android 15
[data-sender] +1234567890
[data-body] Hey are you free tonight?

notification — App notification (deduplicated against SMS)

[skill] aster
[event] notification
[device_id] a1b2c3d4-5678-90ab
[model] samsung SM-S938B, Android 15
[data-app] whatsapp
[data-package] com.whatsapp
[data-title] John
[data-text] Meeting moved to 3pm

device_online — Approved device came online

[skill] aster
[event] device_online
[device_id] a1b2c3d4-5678-90ab
[model] samsung SM-S938B, Android 15
[data-status] connected

device_offline — Device went offline

[skill] aster
[event] device_offline
[device_id] a1b2c3d4-5678-90ab
[model] samsung SM-S938B, Android 15
[data-status] disconnected

pairing — New device needs approval (use [device_id] to approve)

[skill] aster
[event] pairing
[device_id] e5f6g7h8-9012-cdef
[model] Samsung SM-S924B, Android 15
[data-status] pending_approval
[data-action] approve this device from the Aster dashboard or via aster devices approve

### How to React to Events

When you receive a message with [skill] aster, parse the [event] and [device_id] to determine what happened and which device to act on.

SMS — reply, extract info, or escalate:

[event] sms | [device_id] a1b2c3d4 | sender: +1234567890 | body: Running late, be there in 20
→ aster_send_sms (deviceId: a1b2c3d4) to +1234567890: "No worries, see you soon!"

[event] sms | [device_id] a1b2c3d4 | sender: +1800555 | body: Your OTP is 482913
→ Extract OTP "482913", use aster_input_text (deviceId: a1b2c3d4) to enter it

Notifications — monitor and act on behalf of user:

[event] notification | [device_id] a1b2c3d4 | app: driver | text: Your driver is arriving
→ aster_speak_tts (deviceId: a1b2c3d4) "Your Uber is almost here"

[event] notification | [device_id] a1b2c3d4 | app: mShop | text: Your package was delivered
→ aster_send_sms (deviceId: a1b2c3d4) to user: "Your Amazon package just arrived"

Device lifecycle — manage connectivity:

[event] device_offline | [device_id] a1b2c3d4
→ Pause pending automations for device a1b2c3d4

[event] device_online | [device_id] a1b2c3d4
→ Resume queued tasks, aster_read_notifications (deviceId: a1b2c3d4) to catch up

Pairing — approve or alert:

[event] pairing | [device_id] e5f6g7h8 | model: Samsung SM-S924B
→ If expected: approve device e5f6g7h8 via dashboard API
→ If unexpected: alert user "Unknown device SM-S924B trying to connect"

### Example Usage

Your CoPilot on Mobile:

"Open YouTube and search for cooking videos"
→ aster_launch_intent → aster_click_by_id → aster_input_text

"Find photos from my trip to Mumbai last month"
→ aster_search_media with query "photos from Mumbai last month"

"Take a screenshot and tell me what's on screen"
→ aster_take_screenshot → aster_get_screen_hierarchy

AI's own phone — let it act for you:

"Call me and tell me my flight is delayed"
→ aster_make_call_with_voice with number, text "Your flight is delayed 45 min, new gate B12", waitSeconds 8

"Text me when my delivery arrives"
→ aster_read_notifications → aster_send_sms with number and message

"Reply to the delivery guy: Thanks, I'll be home"
→ aster_send_sms with number and message

### Commands

aster start              # Start the server
aster stop               # Stop the server
aster status             # Show server and device status
aster dashboard          # Open web dashboard

aster devices list       # List connected devices
aster devices approve    # Approve a pending device
aster devices reject     # Reject a device
aster devices remove     # Remove a device

aster set-openclaw-callbacks  # Configure event forwarding to OpenClaw

### Requirements

Node.js >= 20
Any Android device with Aster app installed (your phone or a dedicated AI device)
Device and server on same network (or use Tailscale for secure remote access)

Website: aster.theappstack.in | GitHub: github.com/satyajiit/aster-mcp
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: satyajiit
- Version: 0.1.14
## 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: 2026-05-08T20:42:17.961Z
- Expires at: 2026-05-15T20:42:17.961Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/aster)
- [Send to Agent page](https://openagent3.xyz/skills/aster/agent)
- [JSON manifest](https://openagent3.xyz/skills/aster/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/aster/agent.md)
- [Download page](https://openagent3.xyz/downloads/aster)