m5-onboard

m5-onboard is a skill for Claude Code from anthropics/claude-plugins-official. It costs 94 tokens per session (6,051 once invoked), scanned B, original, Apache-2.0.

An onboarding workflow for M5Stack ESP32 boards, small programmable devices that connect over USB and can communicate over Bluetooth Low Energy.

In plain words
What is it for?
Use it to identify, flash, reset, and provision supported M5Stack devices with UIFlow firmware and MicroPython apps.
Why use it?
It handles the initial setup steps needed before the device can run an application, including detecting the board and installing firmware.

Skill for Claude Code ✓ vendor

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths; mentions Claude Code.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 scripts/onboard.py --apps buddy.

Part of the cwc-makers plugin — 2 skills, 1 command shipped together

Good fit Use it to identify, flash, reset, and provision supported M5Stack devices with UIFlow firmware and MicroPython apps.

Compare 6 skills from other repositories ↓
About the project

Claude Code Plugins Directory is a marketplace containing plugins for Claude Code, including tools, commands, skills, agents, hooks, and model context servers. Claude Code users browse it to install Anthropic-maintained or approved third-party extensions.

anthropics/claude-plugins-official · 36,069 stars · on GitHub · code.claude.com

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/anthropics/claude-plugins-official
agentmods
npx agentmods add skills/anthropics/claude-plugins-official/m5-onboard

Made for: Claude Code.

Or install cwc-makers, the plugin that ships this one along with the rest of its 2 skills, 1 command.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for m5-onboard

README.md
[![agentmods](https://agentmods.dev/badge/skills/anthropics/claude-plugins-official/m5-onboard/github.svg)](https://agentmods.dev/skills/anthropics/claude-plugins-official/m5-onboard)
Your own site
<a href="https://agentmods.dev/skills/anthropics/claude-plugins-official/m5-onboard"><img src="https://agentmods.dev/badge/skills/anthropics/claude-plugins-official/m5-onboard/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for m5-onboard

Your own site · 80×15
<a href="https://agentmods.dev/skills/anthropics/claude-plugins-official/m5-onboard"><img src="https://agentmods.dev/badge/skills/anthropics/claude-plugins-official/m5-onboard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,051 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket warn 7 May 2026
  • Snyk warn 7 May 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 9 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 139
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
  • high Tool Misuse · line 139
    Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.
    Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
  • medium Excessive Agency · line 139
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Privilege Escalation · line 139
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Agent Snooping · line 180
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Privilege Escalation · line 167
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 169
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 172
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
  • medium Privilege Escalation · line 139
    Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.
    Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00094 $0.06051
Opus 5 $0.00047 $0.03026
Sonnet 5 $0.00019 $0.01210
Haiku 4.5 $0.00009 $0.00605

Measured 7d ago against content hash c6ba88fd06f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

m5-onboard scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- **Linux** — use the distro package manager. Debian/Ubuntu: `sudo apt-get update && sudo apt-get install -y python3 python3-pip`. Fedora: `sudo dnf install -y python3 python3-pip`. Arch: `sudo pacman -S --noconfirm pyth

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Python itself has to exist before this skill can do anything — you can't bootstrap an interpreter from inside one. `git` is **not** required — the `/maker-setup` command falls back to downloading the GitHub tarball with
Origin

Copies of this mod

3 near-identical copies found in the catalogue:

plugins/cwc-makers/skills/m5-onboard/SKILL.md · 186 lines

How it starts

The opening of the file, as written. The whole thing — 186 lines — stays where its author put it; the contents beside it link to each section on GitHub.

M5Stack Onboarding

This skill automates the full cold-start workflow for an M5Stack ESP32 device: detect on USB, identify model, flash UIFlow 2.0, and push a MicroPython app bundle onto /flash/ so the device boots into user software. The apps we ship (Claude Buddy, Snake, Hello) talk over BLE or USB. The workflow runs on macOS, Linux, and Windows; the skill was developed against an M5Stack Basic v2.6 (CH9102 bridge, ESP32-D0WDQ6-V3, 16 MB flash) and generalized to cover the rest of the Core family, with the Cardputer-Adv (ESP32-S3, native USB) as the current default target.

Where the scripts live

This skill ships as part of the cwc-makers plugin for reference, but the executable scripts and the buddy/ app bundle live in a local clone of https://github.com/moremas/build-with-claude (the /maker-setup command creates this clone). Run every scripts/*.py invocation below from inside that clone's onboard/ directory so --apps buddy resolves to the sibling buddy/device/ payload.

When to use

Use this when a user plugs in an M5Stack device and wants it provisioned. The decision tree:

  • Fresh/unknown device → run onboard.py --apps buddy end-to-end (detect → identify → flash → install apps). This is the default path.
  • Already-flashed device, user just wants apps installed/refreshed → run install_apps.py --src buddy (or any --src <path> to a directory of .py files).
  • Flashed device, something feels broken → run smoke_test.py (I2C + LCD + speaker + button check).
  • User wants to know what's on the bus / what the device can dosmoke_test.py.

If multiple devices are plugged in, ask which port to target — don't guess. If the user is provisioning a device they previously worked with (e.g. "same thing as last time" or "another Buddy"), default to --apps buddy unless they say otherwise.

Which variant to assume

The rig this skill lives on provisions Cardputer-Adv boards overwhelmingly, so onboard.py now defaults to --variant cardputer-adv. In practice that means:

Read the full file on GitHub · 186 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 186 lines · 94 tokens per session scan B c6ba88fd06f5

Subscribe to this mod's changes

m5-onboard is a skill published in the GitHub repository anthropics/claude-plugins-official (36,069 stars, last pushed yesterday), licensed Apache-2.0. It adds 94 tokens to every session and 6,051 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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