cpp-interface-purpose-comments

Development

Add a standard Purpose comment above each pure virtual method declaration in C++ interface header files (.h/.hpp). Use when asked to batch annotate interface classes or enforce a consistent comment block above `virtual ... = 0;` declarations.

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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/data/cpp-interface-purpose-comments/SKILL.md

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Cpp Interface Purpose Comments

Overview

Add comment with following template:

/* 
    Purpose : (mandatory, brief or remark or description, merge with existing if there is)
    Notes : (optional, don't emit this line if empty, merge with existing if there is) 
    Args : (optional, don't emit this line if empty, merge with existing if there is) 
    Return : (optional, don't emit this line if empty, merge with existing if there is) 
*/

directly above each pure virtual method declaration in C++ interface headers.

Prefer reading knowledges about specified functions from serena's memories first.
Prefer multi-line comments.
Keep everything as SHORT as possible.
The comments should ALWAYS be in English.
If there is ALREADY Purpose or comment for the interfaces there, use the existing purpose or comment instead of generating our own.

Workflow

Confirm scope: target files or directories, desired comment text, and whether to skip existing comments.
Prefer scripted pass using scripts/add_pure_virtual_purpose_comments.py with --dry-run first.
Review changes and handle any missed edge cases with manual edits.
Package the skill when stable.

Scripted workflow (preferred)

Run a dry run:

python scripts/add_pure_virtual_purpose_comments.py --dry-run --globs "*.h,*.hpp" <path>

Apply edits:

python scripts/add_pure_virtual_purpose_comments.py --globs "*.h,*.hpp" <path>

Script behavior

Detect statements containing virtual and = 0; with a function-like (...) pattern.
Support multi-line declarations until the first ;.
Skip insertion if the nearest non-empty line above is a comment, unless --force.
Preserve existing line endings and indentation.

Parameters

--comment: override the default comment text.
--globs: comma-separated patterns for recursive directory scans.
--dry-run: report changes without writing files.
--force: insert even if a comment exists immediately above.

Manual fallback

Insert the comment directly above the first line of the declaration using the same indentation.
For macro-heavy or generated code, prefer targeted edits to avoid unintended changes.