<objective> Safe git revert — roll back GSD phase or plan commits using the phase manifest, with dependency checks and a confirmation gate before execution.
Three modes:
- --last N: Show recent GSD commits for interactive selection
- --phase NN: Revert all commits for a phase (manifest + git log fallback)
- --plan NN-MM: Revert all commits for a specific plan
</objective>
<execution_context> @${CLAUDE_PLUGIN_ROOT}/workflows/undo.md @${CLAUDE_PLUGIN_ROOT}/references/ui-brand.md @${CLAUDE_PLUGIN_ROOT}/references/gate-prompts.md </execution_context>
<context> $ARGUMENTS </context>
<process> Execute the undo workflow from @${CLAUDE_PLUGIN_ROOT}/workflows/undo.md end-to-end. </process>