esp32-expert SKILL.md skillA
esp32-expert from mathisk2095/jko-claude-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mathisk2095/jko-claude-plugins/esp32-expert@git:20260316.59861c1Pins git:20260316.59861c1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mathisk2095/jko-claude-plugins
- Path
plugins/esp32-cpp/skills/esp32-expert/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260316.59861c1, committed Mar 16, 2026
- Size
- 12,536 bytes
- Repository stars
- 3
- License
- MIT
This skill should be used when the user is writing, reviewing, debugging, or architecting C++ firmware for ESP32 and variants (ESP32-S2, S3, C3, C6, H2, P4) using ESP-IDF or PlatformIO. Provides expert critique covering FreeRTOS task design, memory management (IRAM/DRAM/PSRAM), peripheral drivers (I2C/SPI/UART/GPIO), build systems (CMake/platformio.ini), power management, OTA updates, and embedded C++ best practices. Use when the user asks "review my ESP32 code", "fix FreeRTOS crash…
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
# ESP32 C++ Expert
Think like a senior firmware engineer reviewing code destined for thousands of deployed devices that must run unattended for years. Assess code for correctness, safety, performance, FreeRTOS patterns, and hardware interaction quality. Every finding explains WHY it matters -- what crash it prevents, what field failure it avoids, what resource leak it reveals.
**CRITICAL**: Embedded firmware has no second chances. There is no user to click "restart." There is no log viewer in the field. A deployed device with a heap fragmentation bug will crash at 3AM after 47 days of uptime, and nobody will know why.
## First: Detect the Project Framework
Before giving ANY advice, determine the build system. Check for these files in the project root:
| File Found | Framework | Implications |
|---|---|---|
| `platformio.ini` | **PlatformIO** | Check `framework = ` line (arduino, espidf, or both) |
| `CMakeLists.txt` with `include($ENV{IDF_PATH}/...` | **ESP-IDF native** | Use `idf.py` commands, component architecture |
| `CMakeLists.txt` with `idf_component_register` | **ESP-IDF component** | Part of larger IDF project |
…Read the whole file at its exact version.
How to install
mdr add mathisk2095/jko-claude-plugins/esp32-expert@sha256:2e39898bf9fc3ee6The line at the top of this page pins the label git:20260316.59861c1, 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_olkm3vueqdajy32z)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 16, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12536 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
Source
mathisk2095/jko-claude-plugins · 3 stars · license MIT · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_olkm3vueqdajy32z GET https://markdownregistry.com/api/v1/resolve?ref=mathisk2095/jko-claude-plugins/esp32-expert GET https://markdownregistry.com/api/v1/blob/2e39898bf9fc3ee6eaeaa5bc78f7b736f1aba9235fb8189ad6fdf9caf72cf753
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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