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Ponytrail is a small CLI and bundled agent skill for recording why files changed, showing those changes as a local history tree, and reverting files from a previous snapshot.

It keeps the trail in .pony-trail/ inside your project. Treat that folder as local runtime state; it should stay out of git.

Install the bundled pony-trail skill into your local agent tools:

The installer records a local skill-install snapshot before writing agent skill files, so the install can be found later in ponytrail history --details .

Include action, summary, checks, result, and rollback details:

Filter to one session or print machine-readable output: