---
phase: 18-stash-operations
verified: 2026-01-20T03:30:00Z
status: passed
score: 6/6 must-haves verified
re_verification:
  previous_status: gaps_found
  previous_score: 0/6
  gaps_closed:
    - "git stash saves uncommitted changes"
    - "git stash push saves with optional message"
    - "git stash pop restores and removes stash"
    - "git stash apply restores but keeps stash"
    - "git stash list shows all stashes"
    - "git stash drop removes most recent stash"
  gaps_remaining: []
  regressions: []
---

# Phase 18: Stash Operations Verification Report

**Phase Goal:** Users can save, restore, list, and manage temporary changes using git stash workflow
**Verified:** 2026-01-20T03:30:00Z
**Status:** passed
**Re-verification:** Yes -- after gap closure (Python 3.8 compatibility fix)

## Goal Achievement

### Observable Truths

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| 1 | git stash saves uncommitted changes | VERIFIED | `test_stash_saves_changes` passes - stash creates shelve and cleans working directory |
| 2 | git stash push saves with optional message | VERIFIED | `test_stash_push`, `test_stash_with_message`, `test_stash_push_with_message` all pass |
| 3 | git stash pop restores and removes stash | VERIFIED | `test_stash_pop_restores_and_removes` passes - content restored, shelve deleted |
| 4 | git stash apply restores but keeps stash | VERIFIED | `test_stash_apply_restores_and_keeps` passes - content restored, shelve retained |
| 5 | git stash list shows all stashes | VERIFIED | `test_stash_list_shows_shelves`, `test_stash_list_multiple` pass - shelves displayed |
| 6 | git stash drop removes most recent stash | VERIFIED | `test_stash_drop_removes_most_recent`, `test_stash_drop_multiple_removes_most_recent` pass |

**Score:** 6/6 truths verified

### Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `cmd_stash.py` | Stash command handler with subcommand dispatch | VERIFIED | 109 lines, substantive implementation, Python 3.8+ compatible (`Optional[str]` on line 9) |
| `gitsl.py` | Dispatch routing for stash | VERIFIED | Line 32: `import cmd_stash`, Lines 126-127: dispatch on `parsed.command == "stash"` |
| `tests/test_stash.py` | E2E tests for STASH-01 through STASH-07 | VERIFIED | 228 lines, 15 tests, all passing |
| `pytest.ini` | Pytest marker for stash | VERIFIED | Line 21: `stash: tests for git stash command` |

### Key Link Verification

| From | To | Via | Status | Details |
|------|----|-----|--------|---------|
| gitsl.py | cmd_stash.handle | dispatch on parsed.command == "stash" | WIRED | Line 32 import, Lines 126-127 dispatch |
| cmd_stash.py | sl shelve | run_sl call for save operations | WIRED | Lines 28, 43, 56, 64, 84, 109: `run_sl(["shelve"...])` |
| cmd_stash.py | sl unshelve | run_sl call for restore operations | WIRED | Lines 33, 38: `run_sl(["unshelve"...])` |
| tests/test_stash.py | conftest.run_gitsl | import | WIRED | Line 8: `from conftest import run_gitsl` |
| tests/test_stash.py | sl_repo_with_commit | fixture usage | WIRED | Used in all 15 test functions |

### Requirements Coverage

| Requirement | Status | Notes |
|-------------|--------|-------|
| STASH-01: git stash saves changes | SATISFIED | `test_stash_saves_changes` verifies |
| STASH-02: git stash push saves changes | SATISFIED | `test_stash_push` verifies |
| STASH-03: git stash -m saves with message | SATISFIED | `test_stash_with_message`, `test_stash_push_with_message` verify |
| STASH-04: git stash pop restores/removes | SATISFIED | `test_stash_pop_restores_and_removes` verifies |
| STASH-05: git stash apply restores/keeps | SATISFIED | `test_stash_apply_restores_and_keeps` verifies |
| STASH-06: git stash list shows stashes | SATISFIED | `test_stash_list_shows_shelves`, `test_stash_list_multiple` verify |
| STASH-07: git stash drop removes most recent | SATISFIED | `test_stash_drop_removes_most_recent`, `test_stash_drop_multiple_removes_most_recent` verify |

### Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
|------|------|---------|----------|--------|
| None | - | - | - | No anti-patterns found |

**Previous Gap Resolved:**
- `cmd_stash.py` line 9 now uses `Optional[str]` instead of `str | None`
- Module imports successfully on Python 3.8+
- All 15 tests pass (previously 0/15)

### Human Verification Required

None - all truths verified programmatically via E2E tests.

### Test Results Summary

```
tests/test_stash.py::TestStashBasic::test_stash_saves_changes PASSED
tests/test_stash.py::TestStashBasic::test_stash_nothing_to_stash PASSED
tests/test_stash.py::TestStashPush::test_stash_push PASSED
tests/test_stash.py::TestStashMessage::test_stash_with_message PASSED
tests/test_stash.py::TestStashMessage::test_stash_push_with_message PASSED
tests/test_stash.py::TestStashPop::test_stash_pop_restores_and_removes PASSED
tests/test_stash.py::TestStashPop::test_stash_pop_no_stash_error PASSED
tests/test_stash.py::TestStashApply::test_stash_apply_restores_and_keeps PASSED
tests/test_stash.py::TestStashApply::test_stash_apply_no_stash_error PASSED
tests/test_stash.py::TestStashList::test_stash_list_shows_shelves PASSED
tests/test_stash.py::TestStashList::test_stash_list_empty PASSED
tests/test_stash.py::TestStashList::test_stash_list_multiple PASSED
tests/test_stash.py::TestStashDrop::test_stash_drop_removes_most_recent PASSED
tests/test_stash.py::TestStashDrop::test_stash_drop_no_stash_error PASSED
tests/test_stash.py::TestStashDrop::test_stash_drop_multiple_removes_most_recent PASSED

15 passed in 18.47s
```

### Gap Closure Summary

The Python 3.8 compatibility issue has been fully resolved:

**Before (FAILED):**
```python
def _get_most_recent_shelve() -> str | None:  # Python 3.10+ only
```

**After (VERIFIED):**
```python
from typing import Optional
...
def _get_most_recent_shelve() -> Optional[str]:  # Python 3.8+ compatible
```

This change aligns with the project's `requires-python = ">=3.8"` specification in pyproject.toml and matches the pattern used by other cmd_*.py modules in the project.

---

*Verified: 2026-01-20T03:30:00Z*
*Verifier: Claude (gsd-verifier)*
*Re-verification: After gap closure*
