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unihiker_expansion_battery SKILL.md skillC

unihiker_expansion_battery from espressif/esp-claw-skills-lab is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add espressif/esp-claw-skills-lab/unihiker_expansion_battery@git:20261014.4631425

Pins git:20261014.4631425 in mdr.lock. Pin the fingerprint instead.

Audit grade: C, 15 of 17 checks passed
Kind: SKILL.md skill
Repository: espressif/esp-claw-skills-lab
Path: skills/unihiker_expansion_battery/SKILL.md
Versions recorded: 2
Latest version: git:20261014.4631425, committed Oct 14, 2026
First version recorded: May 25, 2026
Size: 2,119 bytes
Repository stars: 37
License: MIT

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

# UNIHIKER Expansion Battery

Use this skill when the user asks to read battery percentage from a DFRobot UNIHIKER Expansion board (SKU: DFR1216). Chinese name is 行空板扩展板.

Run exactly one bundled Lua script with `lua_run_script`.

If script execution returns an error, report that error directly to the user.
Do not retry with changed arguments in the same turn unless the user explicitly asks.

## Script Args Schema

```json
{
  "type": "object",
  "properties": {
    "i2c_port": {
      "type": "integer",
      "minimum": 0,
      "maximum": 1
    },
    "sda": {
      "type": "integer",
      "minimum": 0,
      "maximum": 63
    },
    "scl": {
      "type": "integer",
      "minimum": 0,
      "maximum": 63
    },
    "i2c_freq_hz": {
      "type": "integer",
      "minimum": 10000,
      "maximum": 1000000
    },
    "addr": {
      "type": "integer",
      "minimum": 8,
      "maximum": 119
    },
    "retry_count": {
      "type": "integer",
      "minimum": 1,
      "maximum": 20
    },
    "retry_delay_ms": {
      "type": "integer",
      "minimum": 0,
      "maximum": 1000
    }
  }
}
```

## Tool Call Inputs

Read battery with default wiring:

```json
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add espressif/esp-claw-skills-lab/unihiker_expansion_battery@sha256:48d2a32073329322

The line at the top of this page pins the label git:20261014.4631425, 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.

Badge

[![mdr](https://markdownregistry.com/badge/art_3ynfuoql6rdvxctz.svg)](https://markdownregistry.com/a/art_3ynfuoql6rdvxctz)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between May 25, 2026 and Oct 14, 2026, about one every 142 days.

version	committed	commit	size	audit
git:20261014.4631425 latest	2026-10-14	4631425	2,119 B	C	view · diff
git:20260525.80bb5c2	2026-05-25	80bb5c2	2,147 B	C	view

Audit of the latest version

C 15 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

fail: Frontmatter declares a name
fail: Frontmatter declares a description
pass: Frontmatter block present
pass: Size between 200 bytes and 200 KB (2119 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 link to a raw IP address
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

GitHub

espressif/esp-claw-skills-lab · 37 stars · license MIT · pushed 2026-10-31 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_3ynfuoql6rdvxctz
GET https://markdownregistry.com/api/v1/resolve?ref=espressif/esp-claw-skills-lab/unihiker_expansion_battery
GET https://markdownregistry.com/api/v1/blob/48d2a32073329322266eee58bf636cdada8a71645489cbb0289046b3ea69d091

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.