How to use AI Review of MicroPython Code with Claude: Step-by-Step Guide for Beginners

[leezisheng]

link:https://f1829ryac0m.feishu.cn/wiki/QXmSwHygFikcNJkR5rcc1NZrnTg

This tool is an AI skill plugin specifically designed for code review of MicroPython , based on the review comments of over 19,500 historical maintainers in the MicroPython community, helping you check for MicroPython-specific issues such as memory management, portability, and performance, and supporting AI agents like Claude and ChatGPT.

Simply put:

• It is not an independent software , but a "professional skills plug-in" for large AI models, turning ordinary AI into a MicroPython code review expert.
• Core Value: Ordinary Python review tools do not understand the resource constraints of embedded MCUs. This skill is fully tailored to the MicroPython ecosystem, providing precise recommendations that comply with community standards.
• Dependencies: Based on Agent Skills Open Standard + MCP (Model Context Protocol), requires a Node.js environment and AI tools supporting Agent Skills.

Installation Address: https://mcpmarket.com/zh/tools/skills/micropython-code-reviewe

1. Preparatory Work: Installation of Claude Code

Claude Code is officially launched by Anthropic as a command-line version of Claude AI, which can directly call the Claude large model in the Windows Terminal (PowerShell), supports the installation of various professional skills (simply put, it packages "professional domain knowledge" for the AI to enable it to output professional results that comply with industry standards), and is highly suitable for code development scenarios.

Both Claude Code and Skill Tools rely on Node.js, which must be installed first. For Node.js installation, please refer to:

https://zhuanlan.zhihu.com/p/2013750250721014697

Please note that you need to download the Windows 64-bit installation package (.msi format), double-click to run the installation, and keep clicking "Next" throughout the installation process, ensuring that you check the box for 「Add to PATH」 (automatically adds environment variables, no need for manual configuration).

Next, simply follow the instructions in the tutorial below: https://claude-zh.cn/guide/getting-started

Verify successful installation:

claude --version

Seeing a version number similar to Claude Code 0.2.10 indicates successful installation

2. Open Claude

Under the code repository that needs to be reviewed, enter the following command to openClaude:

claude

This is a security warning for the "Bypass Permissions mode" of Claude Code (an AI programming tool launched by Anthropic), indicating that you have currently enabled the high-risk permission bypass feature. Simply select "Confirm" to proceed.

Note: In this mode, when Claude Code executes potentially risky commands, it will no longer request your confirmation/authorization and will run them directly.

3. Install the MicroPython Code Reviewer Skill

Copy the installation command:

npx skillfish add andrewleech/mpy-reviewer review

It can be seen that the installation is completed.

4. Usage Instructions

4.1 Review the current change

First, enter your project repository and make some changes:

In the PowerShell of the project directory, enter claude and press Enter to enter Claude Code. Meanwhile, enter the following command (copy and paste directly) to trigger code review:

Use the MicroPython Code Reviewer skill to review my current git diff, focus on memory management, portability and performance for ESP32 MicroPython.

Waiting for Claude to call skills and generate a review report:

Skill loaded successfully

This is the command execution security confirmation interface triggered when invoking the "MicroPython Code Reviewer" skill in Claude Code. The core is that the AI needs to execute a git command to obtain code changes, which requires your authorization.

Bash command to be executed:

• Switch tothe G:\GraftSense-Drivers-MicroPythondirectory, then executegit diff HEAD
• ( The function of git diff HEAD : View all uncommitted code changes in the current working directory/staging area relative to the latest commit HEAD, that is, the code you have modified but have not yet committed )

Select Confirm to proceed:

This is due to environmental differences:

• Claude Code runs in a Bash terminal environment (such as Git Bash, WSL), rather than the native Windows CMD/PowerShell, as the path formats of the two systems are completely incompatible:
• Windows uses G:\xxx (drive letter + backslash), but Bash only recognizes Unix style /g/xxx (G drive corresponds to /g/), and the backslash \ is an escape character in Bash, which will directly result in parsing failure.
• Folder name mismatch: As can be seen from the second image, the actual folder name is GraftSense-Drivers-MicroPython# (ending with #), but the path generated by AI missed this #, so the directory cannot be found even if the format is correct.

We can manually correct the path. Press the Tab key as prompted at the bottom of the interface to enter the command editing mode; modify the path to the Bash format that exactly matches the actual folder name:

git -C "/g/GraftSense-Drivers-MicroPython#" diff HEAD

Successfully executed, with the output results as follows:

Upon review, this time only a blank line was added at line 17 of sensors/dps310_driver/code/main.py, which is a pure format/style adjustment, has no impact on functionality, complies with PEP 8 coding standards, and there are no issues that need to be fixed.

Next, we'll delete this global variable and try again:TARGET_DPS310_ADDRS

It can be seen that the operation has been successfully completed and reviewed.

The results of this git diff code review show that this change includes the addition of a new .claude/settings.local.json tool configuration file (no code review issues) and the modification of the sensors/dps310_driver/code/main.py file, where in main.py , the TARGET_DPS310_ADDRS constant (with a value of [0x76, 0x77] ) was accidentally deleted and replaced with 3 consecutive blank lines.

AI points out two major issues:

• First, if the constant is still referenced by the code, it will raise a NameError at runtime;
• Second, 3 consecutive blank lines do not conform to the coding specifications of MicroPython and PEP 8 (at most 2 blank lines should be retained between top-level code sections). At the same time, it is recommended to restore this constant and confirm its usage in the downstream code before deletion.

4.2 Review a specified local Commit

is commonly used to backtrack and review a specific commit (such as a commit for bug fixing or adding a new driver) to verify whether the modifications comply with the specifications.

Let's first use the following command to view the git history:

git log --oneline

Directly copy the instruction:

# 替换 <commit-hash> 为你 GitK 里的 Commit 哈希（取前7位即可，比如 8964c02）
Use the MicroPython Code Reviewer skill to review the commit <commit-hash>, focus on MicroPython-specific memory management, ESP32/RP2040 portability, and driver performance.

Here, the command we input:

Use the MicroPython Code Reviewer skill to review the commit <108e41c>, focus on MicroPython-specific memory management, ESP32/RP2040 portability, and driver performance.

Output is as follows:

This change only added a blank line before the final print statement in motor_drivers/opto_mos_driver/code/main.py , which is a pure whitespace adjustment and has no functional impact on MicroPython memory management, ESP32/RP2040 platform portability, or driver performance. The code style complies with PEP 8 specifications, has no issues, and is a risk-free format cleanup operation, most likely triggered by the delimiter matching fix in code_checker.py .

4.3 Review all changes under the specified folder/directory

Applies to reviewing only the modifications of a specific module/driver folder (such as drivers/gt911/, modules/) to avoid the redundancy of full project review.

Directly copy the instruction:

# 替换 <folder-path> 为你的文件夹路径（比如 drivers/gt911/、drivers/as7341/）
Use the MicroPython Code Reviewer skill to review all current git changes in the <folder-path> directory, focus on embedded MicroPython driver best practices.

Here, our command:

Use the MicroPython Code Reviewer skill to review all current git changes in the <G:\GraftSense-Drivers-MicroPython#\sensors> directory, focus on embedded MicroPython driver best practices.

If you choose 1, Claude will automatically find the commit that most recently modified the sensors directory (i.e., the one just committed), and then conduct a complete review of the MicroPython driver code.

The latest commit (hash 22f328d ) for the sensors/ directory MicroPython driver code review results show that this commit only modified the BH1750_driver/package.json file: simplified the package name from bh1750_driver to bh1750 , and upgraded the version number from 1.0.0 to 1.0.1 ; Review and confirm that the package name complies with the naming convention (short, lowercase, no underscores) of the MicroPython package registry, that version upgrades follow semantic versioning rules, that it is a pure metadata update without modifying the driver code, and that it has no impact on memory management, portability, or performance. It is a clean and compliant optimization with no issues.

4.4 Usage Notes: Unable to review multiple files

This plugin cannot perform a complete review of all the code in the project (including unmodified files), which means the following command cannot be used:

Use the MicroPython Code Reviewer skill to perform a full review of EVERY file in my entire MicroPython project repository, scan all code for bugs, memory issues, performance problems, and best practice violations.

This is because the plugin was originally designed for future review of changes/submissions, rather than full-file inspection.

5. How to Review Others' Code in the Fork+PR Development Model

If you are using fork-sync-dev-pr-merge process for development collaboration within the organization:

For a detailed introduction to this model, please refer to: GitHub 组织代码协作开发流程规范

For example, in the public upstream repository: https://github.com/FreakStudioCN/GraftSense-Drivers-MicroPython , there are PRs submitted by other engineers:

The address of this PR is: https://github.com/FreakStudioCN/GraftSense-Drivers-MicroPython/pull/96

We can first perform a simple check and then merge it into the public repository:

Then, synchronize the local repository:

Next, check the relevant history:

git log --oneline

Copy the hash value and enter the following command:

Use the MicroPython Code Reviewer skill to review the commit <a94e883>.

Claude is preparing to review the commit a94e883 of PR 96, and Claude recognizes that this is a "1MB large commit, modifying 182 files":

• Generally, 1 to 10 file changes are normal iterations;
• 100+ files are almost certainly:
  • Unify code formatting (indentation, blank lines, alignment)
  • Unify annotation / docstring style
  • Unified naming of variables / functions
  • Minor interface adjustments without changing the logic

Claude selects typical sensor drivers for in-depth local reading:

Final Conclusion:

• This submission is overall secure , with the main content being code formatting + comment cleanup .
• Only high-risk issue : New driver CDS1081 lacks deinit(), which will continuously leak UART resources on ESP32 / RP2040 and must be manually added.

Version History