How do I install the Sentinel skill?

Run npx skillmds@latest add modbender/sentinel in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Sentinel safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Sentinel?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Sentinel free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Sentinel?

modbender (@modbender) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Sentinel by modbender — Agent Skill

Name: Sentinel
Rating: 4.5 (4 reviews)
Author: modbender

File contents

Security monitoring over IP Camera Android app

Use the Clawd Sentinel pattern to turn any old Android smartphone into a sovereign, frugal, and intelligent motion detection system.

Setup

Android Side: Install "IP Webcam" (by Pavel Khlebovich) and start the server.
Connectivity: Note the local IP (e.g., 192.168.1.100:8080).
OpenClaw Workspace:
- bin/sentinel_ultra_frugal.sh: The core logic for pixel comparison.
- bin/sentinel_runner.sh: The background loop runner.

Detailed API Interaction

The IP Webcam server provides a REST-like API for full remote control. Base URL: http://<IP>:8080/

Visual Captures

Standard Snapshot: /shot.jpg (Fastest, current frame)
Autofocus Snapshot: /photoaf.jpg (Triggers autofocus before capture, highest quality)
Video Recording:
- Start: /startvideo?name=alert_123
- Stop: /stopvideo
- List recordings: /list_videos (returns JSON/HTML)
- Download: /v/<filename>.mp4

Camera Control & Settings

Focus Distance: /settings/focus_distance?set=<0.0-10.0> (0.0 is often Infinity)
Torch (Flash): /enabletorch | /disabletorch
Focus Mode: /settings/focusmode?set=<on|off|macro|infinity|fixed>
Scene Mode: /settings/scenemode?set=<auto|night|action|party...>
White Balance: /settings/whitebalance?set=<auto|daylight|cloudy...>

Device Telemetry

Sensors Data: /sensors.json (Battery, light level, proximity, accelerometer)
System Status: /status.json (Camera state, recording status, uptime)

Audio

Audio Feed: /audio.wav or /audio.opus (Live audio stream)

Integration Examples (curl)

# Get battery level via jq
curl -s http://<IP>:8080/sensors.json | jq '.battery_level[0][1][0]'

# Toggle flash remotely
curl http://<IP>:8080/enabletorch

Recommended Thresholds

Daytime (Haze/Clouds): 2500
Nighttime (ISO noise): 1500

Notes

Frugality: No tokens are consumed unless the pixel differential exceeds the threshold.
Privacy: Raw frames remain local. Only alert-triggered frames are sent to the AI.
Maintenance: Periodically check phone battery and Wi-Fi stability.
Lens flare: Long rainbow flares in night mode usually indicate static lights, not vehicles.

---name: sentineldescription: Transform an Android phone with IP Webcam into an intelligent Edge AI security system with OpenClaw.--- # Security monitoring over IP Camera Android app Use the **Clawd Sentinel** pattern to turn any old Android smartphone into a sovereign, frugal, and intelligent motion detection system. ## Setup 1. **Android Side**: Install "IP Webcam" (by Pavel Khlebovich) and start the server. 2. **Connectivity**: Note the local IP (e.g., `192.168.1.100:8080`). 3. **OpenClaw Workspace**: - `bin/sentinel_ultra_frugal.sh`: The core logic for pixel comparison. - `bin/sentinel_runner.sh`: The background loop runner. ## Detailed API Interaction The IP Webcam server provides a REST-like API for full remote control. Base URL: `http://<IP>:8080/` ### Visual Captures - **Standard Snapshot**: `/shot.jpg` (Fastest, current frame) - **Autofocus Snapshot**: `/photoaf.jpg` (Triggers autofocus before capture, highest quality) - **Video Recording**: - Start: `/startvideo?name=alert_123` - Stop: `/stopvideo` - List recordings: `/list_videos` (returns JSON/HTML) - Download: `/v/<filename>.mp4` ### Camera Control & Settings - **Focus Distance**: `/settings/focus_distance?set=<0.0-10.0>` (0.0 is often Infinity) - **Torch (Flash)**: `/enabletorch` | `/disabletorch` - **Focus Mode**: `/settings/focusmode?set=<on|off|macro|infinity|fixed>` - **Scene Mode**: `/settings/scenemode?set=<auto|night|action|party...>` - **White Balance**: `/settings/whitebalance?set=<auto|daylight|cloudy...>` ### Device Telemetry - **Sensors Data**: `/sensors.json` (Battery, light level, proximity, accelerometer) - **System Status**: `/status.json` (Camera state, recording status, uptime) ### Audio - **Audio Feed**: `/audio.wav` or `/audio.opus` (Live audio stream) ### Integration Examples (curl) ```bash # Get battery level via jq curl -s http://<IP>:8080/sensors.json | jq '.battery_level[0][1][0]' # Toggle flash remotely curl http://<IP>:8080/enabletorch ``` ## Recommended Thresholds - **Daytime (Haze/Clouds)**: 2500 - **Nighttime (ISO noise)**: 1500 ## Notes - **Frugality**: No tokens are consumed unless the pixel differential exceeds the threshold. - **Privacy**: Raw frames remain local. Only alert-triggered frames are sent to the AI. - **Maintenance**: Periodically check phone battery and Wi-Fi stability. - **Lens flare**: Long rainbow flares in night mode usually indicate static lights, not vehicles.

Frequently asked questions

Sentinel