git-diff-timeline

A Claude Code mod that puts a Git Diff timeline above the prompt.

• History: a card of the branch's commits (first parent, so a merged pull request is one commit). Click a commit to see its changes; click a second commit to compare the two. The commit messages being compared show under the timeline, with merges named by their pull or merge request title.
• Branches: compare two branches the way a pull request would (base...compare): commits ahead and behind, where they split, and what the compare branch adds.
• Files changed: a side panel listing the compared commits and each changed file, with its diff.

It reads local git only, so it works with GitHub, GitLab or any other remote.

Install

Load the folder as a plugin directory, for every session, through the env block of ~/.claude/settings.json:

{
  "env": {
    "CLAUDE_CODE_PLUGIN_DIRS": "/path/to/git-diff-timeline",
    "CLAUDE_CODE_PLUGIN_DIR_WATCH": "1"
  }
}

Or for one session: claude --plugin-dir /path/to/git-diff-timeline.

/gitdiff opens the files view. The position option (band or pane) chooses between the strip above the prompt and a side pane.

Test

claude plugin test .
claude plugin validate .