author-contributions
When asked to find all files a specific author contributed to on a branch (compared to main or another upstream), follow this procedure. The goal is to produce a simple table that both humans and LLMs can consume.
Run as a Subagent
This skill involves many sequential git commands. Delegate it to a subagent with a prompt like:
Find every file that author "Full Name" contributed to on branch
<branch>compared to<upstream>. Trace contributions through file renames. Return a markdown table with columns: Status (DIRECT or VIA_RENAME), File Path, and Lines (+/-). Include a summary line at the end.
Procedure
1. Identify the author's exact git identity
git log --format="%an <%ae>" <upstream>..<branch> | sort -u
Match the requested person to their exact --author= string. Do not guess — short usernames won't match full display names (resolve via git log or the GitHub MCP get_me tool).
2. Collect all files the author directly committed to
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