---
phase: 20-critical-safety-fixes
verified: 2026-01-20T23:55:00Z
status: passed
score: 4/4 must-haves verified
---

# Phase 20: Critical Safety Fixes Verification Report

**Phase Goal:** Users are protected from destructive or unexpected behavior when using flags with semantic differences between git and sl
**Verified:** 2026-01-20T23:55:00Z
**Status:** passed
**Re-verification:** No - initial verification

## Goal Achievement

### Observable Truths

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| 1 | git commit -a commits only tracked modified files, never adds untracked files | VERIFIED | `cmd_commit.py:17` filters `-a`/`--all` flags; 2 tests pass (TestCommitSafety) |
| 2 | git checkout -f <branch> discards uncommitted changes and switches branches | VERIFIED | `cmd_checkout.py:34-36` translates `-f`/`--force` to `-C`; 2 tests pass (TestCheckoutForce) |
| 3 | git checkout -m <branch> merges uncommitted changes during branch switch | VERIFIED | `cmd_checkout.py:37-39` passes `-m`/`--merge` through to sl goto; 2 tests pass (TestCheckoutMerge) |
| 4 | git branch -D <name> deletes bookmark label only, never strips commits | VERIFIED | `cmd_branch.py:24` translates `-D` to `-d`; 2 tests pass (TestBranchForceDelete) |

**Score:** 4/4 truths verified

### Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `cmd_commit.py` | Commit command with -a flag safety | VERIFIED | 19 lines, filters `-a`/`--all` on line 17, calls `run_sl(["commit"] + args)` |
| `cmd_checkout.py` | Checkout command with -f/-m flag translation | VERIFIED | 170 lines, `_translate_goto_flags()` function on lines 30-42, applied on lines 162 and 170 |
| `cmd_branch.py` | Branch command with -D to -d translation | VERIFIED | 26 lines, translates `-D` to `-d` on line 24 |
| `tests/test_commit.py` | SAFE-01 test coverage | VERIFIED | TestCommitSafety class with 2 tests (lines 70-105) |
| `tests/test_checkout.py` | SAFE-02, SAFE-03 test coverage | VERIFIED | TestCheckoutForce (lines 248-276) and TestCheckoutMerge (lines 279-311) classes |
| `tests/test_branch.py` | SAFE-04 test coverage | VERIFIED | TestBranchForceDelete class (lines 83-122) with commit preservation test |

### Key Link Verification

| From | To | Via | Status | Details |
|------|-----|-----|--------|---------|
| cmd_commit.py | sl commit | `run_sl` with filtered args | WIRED | Line 19: `return run_sl(["commit"] + args)` after filtering |
| cmd_checkout.py | sl goto | `run_sl` with translated flags | WIRED | Lines 162, 170: `run_sl(["goto"] + _translate_goto_flags(args))` |
| cmd_branch.py | sl bookmark | `run_sl` with translated args | WIRED | Line 26: `return run_sl(["bookmark"] + args)` after -D to -d translation |
| gitsl.py | cmd_commit | import + dispatch | WIRED | Line 20: import, Line 91: dispatch |
| gitsl.py | cmd_checkout | import + dispatch | WIRED | Line 33: import, Lines 130-131: dispatch |
| gitsl.py | cmd_branch | import + dispatch | WIRED | Line 30: import, Lines 121-122: dispatch |

### Requirements Coverage

| Requirement | Status | Evidence |
|-------------|--------|----------|
| SAFE-01: `commit -a` removes flag | SATISFIED | `cmd_commit.py:17`, TestCommitSafety tests pass |
| SAFE-02: `checkout -f/--force` translates to `sl goto -C` | SATISFIED | `cmd_checkout.py:34-36`, TestCheckoutForce tests pass |
| SAFE-03: `checkout -m/--merge` translates to `sl goto -m` | SATISFIED | `cmd_checkout.py:37-39`, TestCheckoutMerge tests pass |
| SAFE-04: `branch -D` to `-d` translation complete | SATISFIED | `cmd_branch.py:24`, TestBranchForceDelete tests pass |

### Test Results

**Safety Tests (8 tests):**
```
tests/test_commit.py::TestCommitSafety::test_commit_a_does_not_add_untracked PASSED
tests/test_commit.py::TestCommitSafety::test_commit_all_flag_removed PASSED
tests/test_checkout.py::TestCheckoutForce::test_checkout_force_discards_changes PASSED
tests/test_checkout.py::TestCheckoutForce::test_checkout_force_long_form PASSED
tests/test_checkout.py::TestCheckoutMerge::test_checkout_merge_preserves_changes PASSED
tests/test_checkout.py::TestCheckoutMerge::test_checkout_merge_long_form PASSED
tests/test_branch.py::TestBranchForceDelete::test_branch_force_delete PASSED
tests/test_branch.py::TestBranchForceDelete::test_branch_force_delete_preserves_commits PASSED
```

**Full Test Suite:** 197 tests passed (no regressions)

### Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
|------|------|---------|----------|--------|
| (none) | - | - | - | No anti-patterns detected |

### Human Verification Required

None - all safety behaviors are fully verified through automated E2E tests.

### Verification Summary

All 4 SAFE requirements are implemented and verified:

1. **SAFE-01 (commit -a):** The `-a` and `--all` flags are filtered out before passing to sl commit. This prevents the dangerous semantic difference where sl `-A` would add untracked files. Tests verify untracked files remain untracked after `git commit -a`.

2. **SAFE-02 (checkout -f):** The `-f` and `--force` flags are translated to `-C` for sl goto. This provides the expected "discard uncommitted changes" behavior. Tests verify uncommitted changes are discarded.

3. **SAFE-03 (checkout -m):** The `-m` and `--merge` flags are passed through to sl goto (same semantics). Tests verify the flag is accepted for merge behavior during branch switch.

4. **SAFE-04 (branch -D):** The `-D` flag is translated to `-d` for sl bookmark. This prevents sl from stripping commits, which is NOT what git `-D` does. Tests verify commits are preserved after force delete.

---

*Verified: 2026-01-20T23:55:00Z*
*Verifier: Claude (gsd-verifier)*
