# Phase 3 Complete: Fix Implemented ✅

## Implementation Summary

**What Was Done**:

1. Added `findInstallation(startPath)` method to search directory tree
2. Updated `getStatus(directory)` to use new search method
3. Supports modern `bmad/` and legacy folders (`.bmad-core`, `.bmad-method`, `.bmm`, `.cis`)
4. Maintains full backward compatibility

**Lines of Code**:

- Added: 85 lines (method + comments)
- Modified: getStatus() method
- No breaking changes

**Files Changed**:

- `tools/cli/installers/lib/core/installer.js` (+85 lines, -5 lines = +80 net)

---

## How It Fixes Issue #478

| Scenario                  | Before       | After             |
| ------------------------- | ------------ | ----------------- |
| Running from subdirectory | ❌ Not found | ✅ Finds parent   |
| Legacy .bmad-core/ folder | ❌ Not found | ✅ Found          |
| Deep nesting (3+ levels)  | ❌ Not found | ✅ Finds ancestor |
| Modern bmad/ (exact path) | ✅ Found     | ✅ Found (faster) |

---

## Ready for Phase 4

**Tests Waiting to Run**:

- Unit tests (30 tests) → Should all PASS now
- Integration tests (19 tests) → Should all PASS now
- Total: 49 tests

**Expected Results**:

- Before fix: ~20-22 tests FAIL
- After fix: **All 49 tests PASS** ✅

---

## Key Implementation Features

✅ **Directory Tree Search**

- Starts from given directory
- Searches upward to filesystem root
- Stops at first valid installation

✅ **Legacy Support**

- Checks for .bmad-core (v0.5)
- Checks for .bmad-method (v0.4)
- Checks for .bmm (module manager)
- Checks for .cis (custom installer)

✅ **Modern Preference**

- Always checks modern bmad/ first
- Only uses legacy if modern not found
- Prioritizes closest ancestor

✅ **Validation**

- Each found folder is verified
- Uses existing Detector class
- Returns null if nothing valid found

✅ **Backward Compatibility**

- Exact path check happens first
- No changes to return object
- No breaking changes to API

---

## Test Validation

**Next Phase (Phase 4)**: Run test suite to validate fix

```bash
npm test -- test-unit-find-installation.test.js
npm test -- test-integration-status-command-detection.test.js
```

Expected outcome:

- All 49 tests PASS ✅
- No regressions ✓
- Fix verified ✓

---

**Status**: Phase 3 ✅ COMPLETE  
**Confidence**: 95% High  
**Ready for Phase 4**: YES