revert

  **Before starting**, create todo list with these 5 phases:
  1. Scope Selection - Identify what to revert (track/phase/task)
  2. Impact Analysis - Find commits, files, status changes
  3. User Confirmation - Present impact and get approval
  4. Execution - Create revert commits and update files
  5. Validation - Verify consistency and report results

  **Update continuously**:
  - Mark "in_progress" when starting each phase
  - Mark "completed" immediately after finishing
  - Keep only ONE phase "in_progress" at a time
</todowrite_requirement>

<confirmation_required>
  ALWAYS require explicit user confirmation before:
  - Reverting any commits
  - Modifying plan.md status
  - Deleting track files

  Show exactly what will be changed BEFORE doing it.
</confirmation_required>

<non_destructive_default>
  Default to creating revert commits, not force-pushing.
  Preserve git history unless user explicitly requests otherwise.
</non_destructive_default>

<state_validation>
  After any revert:
  1. Verify plan.md matches git state
  2. Verify metadata.json is consistent
  3. Run project quality checks
  4. Report any inconsistencies
</state_validation>

<principle name="Preview Before Action" priority="critical">
  Show user exactly what will be reverted before doing it.
  List commits, files, status changes.
</principle>

<principle name="Graceful Degradation" priority="high">
  If full revert fails, offer partial revert options.
  Never leave project in inconsistent state.
</principle>

<phase number="2" name="Impact Analysis">
  <step>Read metadata.json to find related commits</step>
  <step>List all commits that will be reverted</step>
  <step>List all files that will be affected</step>
  <step>List status changes in plan.md</step>
</phase>

<phase number="3" name="User Confirmation">
  <step>Present impact analysis to user</step>
  <step>Ask for explicit confirmation</step>
  <step>If declined, abort with no changes</step>
</phase>

<phase number="4" name="Execution">
  <step>Create revert commits for each original commit</step>
  <step>Update plan.md statuses back to [ ]</step>
  <step>Update metadata.json to reflect revert</step>
  <step>Remove completed tasks from history</step>
</phase>

<phase number="5" name="Validation">
  <step>Verify git state matches plan.md</step>
  <step>Run project quality checks</step>
  <step>Report final state to user</step>
</phase>

**Phase Level:**
- Reverts all tasks in phase
- Updates all task statuses to [ ]
- Preserves other phases

**Track Level:**
- Reverts entire track
- Optionally deletes track files
- Updates tracks.md index

**Hard Reset (Requires explicit request):**
- Reset branch to before commits
- Loses history (unless pushed)
- Cannot be easily undone