Agent overwrite grader for Claude Code
When two coding agents work in one repository, the later edit can quietly undo the earlier one. This plugin reads your local git log and lists every file two sessions (two authors, or two branches) changed less than an hour apart: the edits most likely to have overwritten each other. Nothing leaves your machine; it needs only Python 3 and git.
Install
In Claude Code:
/plugin marketplace add https://huggingface.co/memento-team/claude-plugins.git
/plugin install agent-overwrite-grader@memento-team
Then run /grade-overwrites, or ask "did my agents overwrite each other this week?".
Example
3 src/auth/session.ts
c11c653 claude-code on agent/auth, Oct 5 09:14, then 8 min later 83f4ab6 codex on agent/billing (3 such pairs)
Claude Code needs the .git ending to read the marketplace as a repository. The same grader runs in the browser at https://overflow.games/memento/grader/ and as pipx run agent-overwrite-grader.
memento Team gives each file one owner at a time across machines, so the next agent waits instead of overwriting: https://overflow.games/memento/?ref=claudeplugin
MIT license.