mcpbeat

Preprocessor Guard Hygiene

google/preprocessor-guard-hygiene

> Enforce preprocessor guard rules and macro-dependent inclusion hygiene in C++. Use this skill when modifying conditional imports or preprocessor directives.

192 tokens
context cost
the whole folder, loaded on every use
1
files
instructions only
0
copies elsewhere
how many repositories repackaged it
20318
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository 
npx skills add https://github.com/google/filament --skill preprocessor-guard-hygiene

The instruction itself

1 sections, as written by the author

Preprocessor Guard Hygiene

  • Simple Guarded Includes: Headers wrapped inside single-line preprocessor guards (like #if __EXCEPTIONS or #if defined(__ARM_NEON)) must remain wrapped and are sorted alphabetically within their correct layer.
  • Macro-Dependent Templating: Never modify or split includes that are tightly coupled with macro configurations (such as #define UTILS_PRIVATE_IMPLEMENTATION_NON_COPYABLE in ostream.cpp). The reorganize_headers.py safety check will automatically detect and skip these; respect these skips.

How to use it

Copy the folder

Take google/preprocessor-guard-hygiene from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.