sensing-track SKILL.md skillB
This file is byte-identical to the first copy the registry indexed, one of 3 indexed copies. Same content hash, so the same checks give both the same grade.
sensing-track from autonomous-ai/physical-ai-operating-system is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add autonomous-ai/physical-ai-operating-system/sensing-track@git:20260916.bf68e22Pins git:20260916.bf68e22 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- autonomous-ai/physical-ai-operating-system
- Path
skills/sensing-track/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260916.bf68e22, committed Sep 16, 2026
- First version recorded
- Jul 24, 2026
- Size
- 17,352 bytes
- Repository stars
- 479
- License
- Apache-2.0
Query flow event logs to answer questions about past sensing events — "Have you seen anybody between 10pm and midnight?", "Is there any motion in the last hour?", "What happened while I was away?". Also holds your OWN sleep history — "how many times have you slept?", "when do you usually go to sleep?".
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Sensing Event History
## Quick Start
The primary data source is the **flow events JSONL** at `/root/local/flow_events_YYYY-MM-DD.jsonl`. Each file covers one calendar day (7-day retention, no size-rotation mid-day). Use Bash + `jq` to query it.
> **Important:** Always use the absolute path `/root/local/` — the `read` tool cannot access files outside the workspace, so use `exec` (Bash) for all JSONL queries.
Persistent camera snapshots are stored under `/var/lib/hal/snapshots/sensing_<prefix>/<ms>.jpg` (72h TTL, 50 MB cap) — one subdir per event kind:
| Event type | Folder |
|---|---|
| `presence.enter`, `presence.leave` | `sensing_face/` |
| `motion.activity` | `sensing_motion_activity/` |
| `emotion.detected` | `sensing_emotion/` |
Reference these when the user asks what happened visually.
## JSONL format
Each line is a JSON object:
```json
{"kind":"enter","node":"sensing_input","ts":1712345678.123,"seq":42,"trace_id":"run-abc","data":{"type":"presence.enter","message":"Person detected — new: friend (gray); faces in frame: 1 (gray)\n[snapshot: /var/lib/hal/snapshots/sensing_face/1712345678123.jpg]"},"version":"1.2.3"}
…Read the whole file at its exact version.
How to install
mdr add autonomous-ai/physical-ai-operating-system/sensing-track@sha256:468d5d08b8f8454aThe line at the top of this page pins the label git:20260916.bf68e22, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_7noo7nnwlof3nfrg)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 24, 2026 and Sep 16, 2026, about one every 14 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260916.bf68e22 latest | 2026-09-16 | bf68e22 | 17,352 B | B | view · diff |
| git:20260916.67c86bd | 2026-09-16 | 67c86bd | 15,743 B | B | view · diff |
| git:20260916.ba8700a | 2026-09-16 | ba8700a | 13,468 B | B | view · diff |
| git:20260910.44ed5b7 | 2026-09-10 | 44ed5b7 | 13,271 B | B | view · diff |
| git:20260724.ff83f8d | 2026-07-24 | ff83f8d | 12,101 B | B | view |
Audit of the latest version
- fail: No link to a raw IP address (matched: http://127.0.0.1:5000)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17352 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
autonomous-ai/physical-ai-operating-system · 479 stars · license Apache-2.0 · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7noo7nnwlof3nfrg GET https://markdownregistry.com/api/v1/resolve?ref=autonomous-ai/physical-ai-operating-system/sensing-track GET https://markdownregistry.com/api/v1/blob/468d5d08b8f8454a7e144802cfc32731a79e9d246717174f389dc5ca5f82e4e7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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