code-greeter

Code Greeter Skill

Inserts or refreshes a standardized greeting comment block at the top of a source file.

When to use

• When creating a new file and you want a consistent header comment.
• When the user asks "add a greeting/header to this file".
• When the user explicitly invokes the code-greeter skill.

Greeting block format

Insert the following block at the very top of the file, using the comment syntax for the file's language. If the file already has a shebang or a directive like "use client", place the block right after it.

{COMMENT_START}
👋 Hello from code-greeter!

File:    {filename}
Updated: {YYYY-MM-DD}
{COMMENT_END}

Comment syntax by language:

• JavaScript / TypeScript / Java / Go / Rust / C / C++: /* ... */
• Python / Shell / Ruby: # (prefix on each line)
• HTML / Markdown: <!-- ... -->

Procedure

1. Read the target file: Use Read on the file the user specified.
2. Detect existing greeter: Search the first 30 lines for Hello from code-greeter!.
   • If found → only update the Updated: line to today's date.
   • If not found → insert a new block at the top of the file (after any shebang/directive).
3. Use Edit to insert/update. Do not use Write to overwrite the whole file.
4. When done, report in one line: code-greeter applied to {filename}.

Notes

• Do not apply to binary files (images, PDFs, etc.).
• Do not apply to files where comments are unsupported or risky (.json, .lock, .toml) — tell the user instead.
• If the user lists multiple files, repeat the procedure for each.