undo

<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>