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Git rollback mode selector

Skill kjuhwa/skills-hub/skills/operations/git-rollback-mode-selector

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Install

npx -y skills add kjuhwa/skills-hub --skill git-rollback-mode-selector

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What its author says it does

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Let operators pick how failed autonomous changes unwind — hard reset, stash-and-continue, or no-op — via one env var. The three modes trade audit-trail preservation against blast-radius containment.

SKILL.md

2.7 KB, 499 tokens by cl100k_base, as published. Nobody here has run it

Git Rollback Mode Selector

Context

An autonomous process (codegen agent, evolver, migration runner) writes changes into a git worktree. When its own validation fails, you need to decide what happens to those changes. One env var, three modes:

Mode	Behavior	Cost
`hard` (default)	`git reset --hard` to pre-change HEAD; discard working tree & index	Fastest clean state; zero artifact of the failed attempt
`stash`	`git stash push --include-untracked` the failed attempt; HEAD returns to pre-change state	Attempt is preserved for human review; stash accumulates if failures repeat
`none`	Leave the tree as-is; log and abort the loop	Lets human inspect the exact failing state in place; next iteration blocked until cleanup

Env var: EVOLVER_ROLLBACK_MODE={hard|stash|none}.

Rules

Record the pre-change ref. Capture git rev-parse HEAD at the start of each iteration; that's the rollback target. Never trust "the previous commit" — the previous iteration may have already moved HEAD.
Include untracked. hard must also git clean -fd (scoped to the working dir, not recursively above it) or agents leave orphaned files. stash must use --include-untracked.
Fail loud on none. When none is chosen and rollback is skipped, the loop must refuse to proceed until a human signals resume. Otherwise the next iteration runs on top of broken state.
Never --force push automatically. Rollback is local-only. If the failed attempt was already pushed, open an issue / alert; do not rewrite remote history from an autonomous loop.
Tag the rollback in the audit log. Emit {iteration_id, rollback_mode, pre_ref, post_ref, reason} to the event stream so you can reconstruct what happened even when hard erased the working tree.

Anti-patterns

Using git checkout . as the rollback — leaves untracked files and staged deletions.
Using git stash with no --include-untracked — same leak.
Rolling back across iterations (jumping past more than one pre-ref) — that's not rollback, that's revert; different operation, different semantics.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Gives 0 of the 12 instructions most pr commit review skills give in 499 tokens

Counted across 888 of the 1,342 authors here whose files we hold, read 2026-08-07

Use conventional commits formatin 127 of 888, across 115 files
Keep subject line under 72 charactersin 62 of 888, across 48 files
Delete branches after mergein 51 of 888, across 38 files
Use imperative mood in subject linein 51 of 888, across 42 files
Use imperative mood in commit messagesin 44 of 888
Verify directory is ignored before creating worktreein 43 of 888, across 12 files
Generate a conventional commit messagein 43 of 888
Add unignored worktree directories to gitignorein 42 of 888, across 10 files
Make atomic commitsin 39 of 888, across 27 files
Run tests before committingin 36 of 888, across 25 files
Verify clean test baselinein 35 of 888, across 9 files
Split unrelated changes into separate commitsin 35 of 888, across 30 files

Said here and by no other author read

read rollback mode from the environment variable
default to hard reset when mode is unset
hard reset to pre-change HEAD and clean untracked files
stash the failed attempt including untracked files
abort and wait for human resume signal in none mode
record the pre-change ref before each iteration

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.

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