Authoring VPhone Patch Sets
Lakr233/vphone-cli
Explains how to declare a firmware patch in a vphone patch set, add a new set, or write a preset, including naming, gating and the checks that catch undeclared patches.
Senior embedded software engineer specializing in firmware and driver development for ARM Cortex-M microcontrollers (Teensy, STM32, nRF52, SAMD).
Install Arm Cortex Expert
$ npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace arm-cortex-expert --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sickn33/arm-cortex-expert .claude/skills/arm-cortex-expert && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "arm-cortex-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/arm-cortex-expert into .claude/skills/arm-cortex-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arm-cortex-expert", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/arm-cortex-expertType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace arm-cortex-expert --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sickn33/arm-cortex-expert .agents/skills/arm-cortex-expert && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "arm-cortex-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/arm-cortex-expert into .agents/skills/arm-cortex-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arm-cortex-expert", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace arm-cortex-expert --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sickn33/arm-cortex-expert .cursor/skills/arm-cortex-expert && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "arm-cortex-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/arm-cortex-expert into .cursor/skills/arm-cortex-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arm-cortex-expert", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aiskillstore/marketplace.git --path skills/sickn33/arm-cortex-expert--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace arm-cortex-expert --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sickn33/arm-cortex-expert .gemini/skills/arm-cortex-expert && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "arm-cortex-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/arm-cortex-expert into .gemini/skills/arm-cortex-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arm-cortex-expert", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aiskillstore/marketplace arm-cortex-expertInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sickn33/arm-cortex-expert .github/skills/arm-cortex-expert && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "arm-cortex-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/arm-cortex-expert into .github/skills/arm-cortex-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arm-cortex-expert", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace arm-cortex-expert --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sickn33/arm-cortex-expert .opencode/skills/arm-cortex-expert && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "arm-cortex-expert" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/arm-cortex-expert into .opencode/skills/arm-cortex-expert/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arm-cortex-expert", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
arm-cortex-expert- GitHub stars
- 430
- Used in
- 7 other repos
- Token cost
- ~3.3k tokens
- SKILL.md length
- 1,354 words
- Files
- 2
- Skills in repo
- 1,108
- Repo updated
- First seen
- Licence
- None found
At a glance
Senior embedded software engineer specializing in firmware and driver development for ARM Cortex-M microcontrollers (Teensy, STM32, nRF52, SAMD).
- Works in 3 steps: DTCM/SRAM (Non-cacheable, fastest CPU… → MPU-configured Non-cacheable regions -… → Cache Maintenance (Last resort - slowest)
- Tasks that involve Embedded systems
- SKILL.md covers Use this skill when, Do not use this skill when, Instructions and 🎯 Role & Objectives, plus 12 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Arm Cortex Expert is an agent skill from aiskillstore/marketplace. Senior embedded software engineer specializing in firmware and driver development for ARM Cortex-M microcontrollers (Teensy, STM32, nRF52, SAMD).
Its SKILL.md is about 3.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).
It sits in Development, covering Embedded systems. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Tasks that involve Embedded systems
Example prompts
- “/arm-cortex-expert”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- DTCM/SRAM (Non-cacheable, fastest CPU access)
- MPU-configured Non-cacheable regions - Configure OCRAM/SRAM regions as non-cacheable via MPU
- Cache Maintenance (Last resort - slowest)
What it can do on your machine
Read from SKILL.md and the folder at commit ad8daf7. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are cpp and rust).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Arm Cortex Expert loads about 3.3k tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 1,354 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 1,354 words (~3,267 tokens).
- name
- arm-cortex-expert
- risk
- unknown
- source
- community
- date_added
- 2026-02-27
Files
SKILL.md and 1 other file in skills/sickn33/arm-cortex-expert of aiskillstore/marketplace.
- SKILL.md
- skill-report.json
Open the folder on GitHubat commit ad8daf7
Used in 7 other repositories
We found 16 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 7 other GitHub owners. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
- sickn33/agentic-awesome-skillsskills/arm-cortex-expertplugins/agentic-awesome-skills/skills/arm-cortex-expert+1 more
- rmyndharis/antigravity-skillsskills/arm-cortex-expert
- Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI.agent/skills/arm-cortex-expert
- agent-skills-hub/agent-skills-hubskills/arm-cortex-expert
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/arm-cortex-expertantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/arm-cortex-expert+1 more
- benjaminasterA/antigravity-awesome-skillsskills/arm-cortex-expert
- henryalouf/ruflow.agents/skills/arm-cortex-expert.agents/skills/antigravity-awesome-skills/skills/arm-cortex-expert+4 more
Compare with similar skills
Arm Cortex Expert next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Arm Cortex Expert this skillaiskillstore/marketplace | 430 | 7 repos | ~3.3k | Automated safety check: Pass | None | |
| Authoring VPhone Patch SetsLakr233/vphone-cli | 15k | — | ~4.6k | Automated safety check: Pass | MIT | |
| Sipeed I2C and SPI Hardware Controlsipeed/picoclaw | 30k | — | ~578 | Automated safety check: Pass | MIT | |
| RuView Hardware Setupruvnet/RuView | 97k | — | ~1.8k | Automated safety check: Notes | MIT | |
| Esp32 Firmware Engineeralxv2016/folloup-sticky | 116 | 1 repos | ~3.8k | Automated safety check: Pass | GPL-3.0 | |
| ExecuTorch Binary Size Reductionpytorch/executorch | 5.1k | — | ~793 | Automated safety check: Pass | Custom licence |
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Brings a RuView CSI sensing node online by building ESP32-S3 or ESP32-C6 firmware, flashing the board, provisioning WiFi and checking the serial output.
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Related
Categories
Questions about Arm Cortex Expert
What does Arm Cortex Expert do?
Senior embedded software engineer specializing in firmware and driver development for ARM Cortex-M microcontrollers (Teensy, STM32, nRF52, SAMD). Arm Cortex Expert is an agent skill from aiskillstore/marketplace. Senior embedded software engineer specializing in firmware and driver development for ARM Cortex-M microcontrollers (Teensy, STM32, nRF52, SAMD).
When should I use Arm Cortex Expert?
Arm Cortex Expert fits situations like: tasks that involve Embedded systems.
How do I install Arm Cortex Expert in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a claude-code`. Or copy the skill folder (skills/sickn33/arm-cortex-expert in aiskillstore/marketplace) into .claude/skills/arm-cortex-expert in your project. Claude Code loads it when a task matches its description.
How do I install Arm Cortex Expert in Codex?
Run `npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a codex`. Or copy the skill folder (skills/sickn33/arm-cortex-expert in aiskillstore/marketplace) into .agents/skills/arm-cortex-expert in your project. Codex loads it when a task matches its description.
Can I use Arm Cortex Expert in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill arm-cortex-expert -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/arm-cortex-expert, .gemini/skills/arm-cortex-expert, .github/skills/arm-cortex-expert and .opencode/skills/arm-cortex-expert in your project.
What does Arm Cortex Expert need to run?
SKILL.md names no scripts, command-line tools or credentials: Arm Cortex Expert is instructions for the agent only.
Does Arm Cortex Expert access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Arm Cortex Expert safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Arm Cortex Expert use?
No licence was found for Arm Cortex Expert or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Arm Cortex Expert use?
About 3.3k tokens (SKILL.md is roughly 13k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Arm Cortex Expert?
Skills that share tags, products or a category with Arm Cortex Expert: Authoring VPhone Patch Sets (Lakr233/vphone-cli, 15k stars), Sipeed I2C and SPI Hardware Control (sipeed/picoclaw, 30k stars), RuView Hardware Setup (ruvnet/RuView, 97k stars) and Esp32 Firmware Engineer (alxv2016/folloup-sticky, 116 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Arm Cortex Expert?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,108 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.