Basename sanitization inconsistency causes CLI mode failures for subdirectory modules

[Serhan-Asad]

Bug Description

The operation_log.py module does not sanitize basenames containing slashes (/), while sync_determine_operation.py and sync_orchestration.py do. This causes state desynchronization and crashes when using subdirectory basenames like pdd sync core/cloud.

What Breaks:

1. CLI mode crashes with FileNotFoundError when trying to save fingerprints
2. TUI vs CLI inconsistency - same command behaves differently
3. State desynchronization - reader and writer use different file paths
4. Workflow loses track of completed operations

Root Cause

Reader (sync_determine_operation.py:786):

fingerprint_file = meta_dir / f"{_safe_basename(basename)}_{language}.json"
# For "core/cloud" → .pdd/meta/core_cloud_python.json ✓

Writer TUI mode (sync_orchestration.py:217):

fingerprint_file = META_DIR / f"{_safe_basename(basename)}_{language}.json"
# For "core/cloud" → .pdd/meta/core_cloud_python.json ✓ SAME

Writer CLI mode (operation_log.py:228):

path = get_fingerprint_path(basename, language)
# Returns: Path(META_DIR) / f"{basename}_{language}.json"  # ⚠️ No sanitization!
# For "core/cloud" → .pdd/meta/core/cloud_python.json ✗ DIFFERENT

Steps to Reproduce

# 1. Create a prompt with subdirectory basename
mkdir -p prompts/core
cat > prompts/core/cloud_python.prompt << 'END'
Write a simple hello world function
END

# 2. Run sync in CLI mode (not TUI)
pdd sync core/cloud

# 3. Observe the crash:
# FileNotFoundError: [Errno 2] No such file or directory: 
# '.pdd/meta/core/cloud_python.json'

Expected Behavior

All code paths should use the same sanitized basename:

• .pdd/meta/core_cloud_python.json
• .pdd/meta/core_cloud_python_run.json
• .pdd/meta/core_cloud_python_sync.log
• .pdd/locks/core_cloud_python.lock

Actual Behavior

CLI mode tries to write to unsanitized paths:

• .pdd/meta/core/cloud_python.json ← Tries to create subdirectory, crashes
• .pdd/meta/core/cloud_python_run.json ← Different from reader
• .pdd/meta/core/cloud_python_sync.log ← Different from reader

Files Affected

• pdd/operation_log.py:25-40 - Missing sanitization in:
  • get_log_path()
  • get_fingerprint_path()
  • get_run_report_path()

Proposed Fix

Add basename sanitization to operation_log.py:

def get_log_path(basename: str, language: str) -> Path:
    """Get the path to the sync log for a specific module."""
    ensure_meta_dir()
    safe_basename = basename.replace('/', '_')  # Add sanitization
    return Path(META_DIR) / f"{safe_basename}_{language}_sync.log"

def get_fingerprint_path(basename: str, language: str) -> Path:
    """Get the path to the fingerprint JSON file for a specific module."""
    ensure_meta_dir()
    safe_basename = basename.replace('/', '_')  # Add sanitization
    return Path(META_DIR) / f"{safe_basename}_{language}.json"

def get_run_report_path(basename: str, language: str) -> Path:
    """Get the path to the run report file for a specific module."""
    ensure_meta_dir()
    safe_basename = basename.replace('/', '_')  # Add sanitization
    return Path(META_DIR) / f"{safe_basename}_{language}_run.json"

Or import the existing _safe_basename() from sync_determine_operation.py.

Additional Context

The _safe_basename() function already exists in sync_determine_operation.py:71 specifically to handle this case, but operation_log.py doesn't use it. This oversight causes TUI mode to work (which uses sanitized paths) while CLI mode crashes.

[Serhan-Asad]

Step 1: Duplicate Check

Status: No duplicates found

Search Performed

• Searched for: "basename sanitization", "operation_log", "FileNotFoundError meta", "subdirectory basename", "CLI TUI inconsistency", "safe_basename", "slash basename path"
• Issues reviewed: 200+ issues screened, 3 issues examined in detail

Findings

After thorough search of the repository, this issue is unique and not a duplicate.

Similar issues examined:

1. Issue Log all PDD commands (not just sync) and update state files #277 (CLOSED): "Log all PDD commands (not just sync) and update state files"

   • Created module to extract logging infrastructure
   • Different problem: about adding logging to all commands, not about basename sanitization
   • Although it mentions , it doesn't address the sanitization bug

2. Issue pdd sync generates files in wrong locations due to path pattern mismatch and dir_prefix bug #237 (OPEN): "pdd sync generates files in wrong locations due to path pattern mismatch and dir_prefix bug"

   • About .pddrc context pattern matching and dir_prefix logic in sync_determine_operation.py
   • Different root cause: incorrect path construction when context is matched
   • Not related to basename sanitization inconsistency between modules

3. Issue Bug: File Handle Resource Leak in SyncLock.acquire() #403 (CLOSED): "Bug: File Handle Resource Leak in SyncLock.acquire()"

   • About file handle leaks in lock files
   • Unrelated to basename sanitization

Why this is a new issue:

This is the first issue specifically identifying the inconsistency between TUI and CLI modes caused by missing basename sanitization in operation_log.py while other modules (sync_determine_operation.py, sync_orchestration.py) properly sanitize basenames with _safe_basename(). The bug causes:

• State file path mismatches between reader/writer
• CLI mode crashes with FileNotFoundError
• TUI mode works correctly (uses sanitized paths)

This specific combination of symptoms and root cause has not been previously reported.

---

Proceeding to Step 2: Documentation Check

[Serhan-Asad]

Step 2: Documentation Check

Status: Confirmed Bug

Documentation Reviewed

• README.md - Main documentation (prompt file naming conventions, pdd sync command reference)
• docs/TUTORIALS.md - Usage tutorials and examples
• docs/faq.md - Frequently asked questions
• Source code comments in:
  • pdd/sync_main.py:249-252 - Documents subdirectory basename support
  • pdd/sync_determine_operation.py:71-77 - _safe_basename() function documentation
  • tests/test_issue_237.py - Test cases expecting subdirectory basenames to work

Findings

Subdirectory basenames ARE a documented and supported feature:

1. Explicitly documented in code (sync_main.py:249-252):

   """
   Supports subdirectory basenames like 'core/cloud':
   - For basename 'core/cloud', searches in prompts/core/ for cloud_*.prompt files
   - The stem comparison only uses the filename part ('cloud'), not the path ('core/cloud')
   """

2. Sanitization function exists specifically for this purpose (sync_determine_operation.py:71-77):

   def _safe_basename(basename: str) -> str:
       """Sanitize basename for use in metadata filenames.
       
       Replaces '/' with '_' to prevent path interpretation when the basename
       contains subdirectory components (e.g., 'core/cloud' -> 'core_cloud').
       """
       return basename.replace('/', '_')

3. Test cases confirm expected behavior (tests/test_issue_237.py):

   • Tests explicitly validate subdirectory basenames like backend/utils/credit_helpers
   • Tests expect commands like pdd sync frontend/components/marketplace/AssetCard to work
   • Issue pdd sync generates files in wrong locations due to path pattern mismatch and dir_prefix bug #237 was about fixing PATH generation for subdirectory basenames (different root cause)

4. No user-facing documentation warns against this usage:

   • README.md describes basename format but doesn't prohibit slashes
   • No warnings about CLI vs TUI mode differences
   • No documentation stating subdirectory basenames are unsupported

Conclusion

The reported behavior is definitely a bug. The codebase was explicitly designed to support subdirectory basenames (with a dedicated sanitization function), but operation_log.py was written without using this sanitization, causing an internal implementation inconsistency that breaks CLI mode while TUI mode works correctly.

This is an internal consistency bug rather than a feature request or usage error. The user's expectation that pdd sync core/cloud should work is correct and aligned with the system's documented design.

---

Proceeding to Step 3: Triage

[Serhan-Asad]

Step 3: Triage

Status: Proceed

Summary

We have sufficient information to attempt reproduction of this issue. Here's what we understand:

Expected Behavior:

• The command pdd sync core/cloud should work consistently in both CLI and TUI modes
• All file paths should use sanitized basenames (e.g., .pdd/meta/core_cloud_python.json)
• Subdirectory basenames like core/cloud are intentionally supported (confirmed in Step 2)

Actual Behavior:

• CLI mode crashes with FileNotFoundError when trying to write to .pdd/meta/core/cloud_python.json
• TUI mode works correctly, writing to .pdd/meta/core_cloud_python.json
• This inconsistency is caused by operation_log.py not using basename sanitization

Root Cause Identified:

• sync_determine_operation.py and sync_orchestration.py use _safe_basename() to sanitize paths ✓
• operation_log.py does NOT sanitize basenames in get_log_path(), get_fingerprint_path(), and get_run_report_path() ✗
• This causes reader and writer to use different file paths, leading to crashes

Reproduction Steps Provided:

1. Create prompts/core/cloud_python.prompt with simple content
2. Run pdd sync core/cloud in CLI mode
3. Observe FileNotFoundError crash

Code Locations:

• pdd/operation_log.py:25-40 - Functions missing sanitization
• sync_determine_operation.py:71-77 - Existing _safe_basename() function
• sync_orchestration.py:217 - Example of correct sanitization usage

All necessary information is available to reproduce and verify this bug.

---

Proceeding to Step 4: Reproduction

[Serhan-Asad]

Step 4: Reproduction

Status: Reproduced ✓

Environment

• OS: macOS Darwin 24.3.0 (arm64)
• Python: 3.12.7
• PDD Version: 0.0.133
• Mode: CLI/Headless mode (non-TTY environment)

Steps Taken

1. Created test prompt file:

   mkdir -p prompts/core
   cat > prompts/core/cloud_python.prompt << 'END'
   Write a simple hello world function
   END

2. Executed pdd sync core/cloud in CLI mode

3. Captured the error output

Observed Behavior

Multiple warnings about failed log writes:

Warning: Failed to write to log file .pdd/meta/core/cloud_python_sync.log: 
[Errno 2] No such file or directory: '.pdd/meta/core/cloud_python_sync.log'

This warning appeared 3 times during the sync operation, confirming that operation_log.py is attempting to write to an unsanitized path .pdd/meta/core/cloud_python_sync.log (with a slash creating an invalid subdirectory path) instead of the sanitized path .pdd/meta/core_cloud_python_sync.log (with an underscore).

Verified path inconsistency:

# operation_log.py returns (WRONG - has slash):
Log path: .pdd/meta/core/cloud_python_sync.log
Fingerprint path: .pdd/meta/core/cloud_python.json
Run report path: .pdd/meta/core/cloud_python_run.json

# Expected sanitized paths (CORRECT - has underscore):
Log path: .pdd/meta/core_cloud_python_sync.log
Fingerprint path: .pdd/meta/core_cloud_python.json
Run report path: .pdd/meta/core_cloud_python_run.json

Directory verification:

$ test -d .pdd/meta/core && echo "exists" || echo "does not exist"
does not exist

The .pdd/meta/core/ subdirectory does not exist, confirming that the code is trying to create file paths with directory separators in the middle.

Affected Files

• pdd/operation_log.py:25-40 - Missing basename.replace('/', '_') sanitization in:

  • get_log_path() (line 25)
  • get_fingerprint_path() (line 31)
  • get_run_report_path() (line 37)

• pdd/operation_log.py:116 - log_event() calls get_log_path() which returns unsanitized path

• pdd/operation_log.py:228 - save_fingerprint() calls get_fingerprint_path() which returns unsanitized path

• pdd/sync_orchestration.py:231 - CLI mode calls save_fingerprint() without sanitization (vs line 227 which uses _safe_basename() in TUI mode)

Notes

Root cause confirmed: The issue is exactly as described in the bug report. There's an inconsistency between:

1. TUI mode (sync_orchestration.py:227): Uses _safe_basename(basename) - works correctly ✓
2. CLI mode (sync_orchestration.py:231): Calls save_fingerprint() from operation_log.py which doesn't sanitize - fails ✗

Why it fails in CLI mode:

• In headless/CLI mode, pdd sync runs sync_worker_logic()
• This uses AtomicStateUpdate context manager for most operations (line 1271)
• But some log writes happen via log_event() in operation_log.py which bypasses sanitization
• The log_event() function at line 116 calls get_log_path(basename, language) which doesn't sanitize

Impact:

• Logging operations silently fail (warnings shown but execution continues)
• If fingerprint writes also fail, sync state tracking would break
• Different file paths between reader and writer could cause state desynchronization

The bug is fully reproducible and matches the description in the issue.

---

Proceeding to Step 5: Root Cause Analysis

[Serhan-Asad]

Step 5: Root Cause Analysis

Root Cause Identified: Yes

Summary

The bug occurs because operation_log.py was created on January 17, 2026 (commit cf008cb), approximately 3 weeks after subdirectory basename support was added on December 25, 2025 (commit 0d27e56). When subdirectory support was implemented, the _safe_basename() function was added to sync_determine_operation.py and properly used in sync_orchestration.py. However, when operation_log.py was later created to extract shared logging functionality, it was implemented without knowledge of the subdirectory basename feature, causing it to construct unsanitized file paths that differ from the sanitized paths used everywhere else in the codebase.

Technical Details

Location: pdd/operation_log.py:25-40

Problematic Code:

def get_log_path(basename: str, language: str) -> Path:
    """Get the path to the sync log for a specific module."""
    ensure_meta_dir()
    return Path(META_DIR) / f"{basename}_{language}_sync.log"  # ⚠️ No sanitization

def get_fingerprint_path(basename: str, language: str) -> Path:
    """Get the path to the fingerprint JSON file for a specific module."""
    ensure_meta_dir()
    return Path(META_DIR) / f"{basename}_{language}.json"  # ⚠️ No sanitization

def get_run_report_path(basename: str, language: str) -> Path:
    """Get the path to the run report file for a specific module."""
    ensure_meta_dir()
    return Path(META_DIR) / f"{basename}_{language}_run.json"  # ⚠️ No sanitization

Why it fails: When basename = "core/cloud", these functions construct paths like:

• .pdd/meta/core/cloud_python.json (tries to create file in non-existent subdirectory core/)

But all other modules use _safe_basename() to construct:

• .pdd/meta/core_cloud_python.json (flat file in meta/ directory)

This mismatch causes:

1. FileNotFoundError - Can't write to .pdd/meta/core/ (doesn't exist)
2. State desynchronization - Reader and writer use different paths
3. TUI vs CLI inconsistency - TUI uses sanitized paths, CLI uses unsanitized paths

External Research

Search terms: Python FileNotFoundError subdirectory path sanitization slash underscore replacement

Sources checked: Python docs, GitHub gists, Stack Overflow, pathvalidate docs

Relevant findings: Path sanitization by character replacement (slash to underscore) is a common pattern to:

• Avoid subdirectory interpretation in filenames
• Prevent FileNotFoundError when parent directories don't exist
• Flatten hierarchical identifiers into valid filenames
• Security against directory traversal attacks

Sources:

• Python FileNotFoundError Built-in Exception
• Sanitize filepath - pathvalidate docs
• Path sanitization examples

Repository History

Timeline:

• Dec 25, 2025 (commit 0d27e56): Subdirectory basename support added
  • Created _safe_basename() in sync_determine_operation.py:71-77
  • Updated sync_orchestration.py to use _safe_basename()
  • Updated lock file paths to use sanitization
  • Added tests for subdirectory basenames
• Jan 17, 2026 (commit cf008cb): Operation logging module created
  • Created operation_log.py from issue Log all PDD commands (not just sync) and update state files #277
  • Implemented without awareness of subdirectory basename feature
  • No sanitization applied to path generation functions

Related PRs:

• PR feat: add shared operation logging infrastructure (#277) #282: "feat: add shared operation logging infrastructure (Log all PDD commands (not just sync) and update state files #277)"
  • Created operation_log.py to extract logging from sync_orchestration.py
  • Goal: Enable all PDD commands to log operations, not just sync
  • Did not consider subdirectory basename case during extraction

Similar past issues:

• Issue pdd sync generates files in wrong locations due to path pattern mismatch and dir_prefix bug #237: Path pattern mismatches (different root cause, different module)
• Issue Log all PDD commands (not just sync) and update state files #277: Created operation_log module (parent issue for this bug)

Experiments Performed

1. Reproduced the bug (Step 4):

   • Created prompts/core/cloud_python.prompt
   • Ran pdd sync core/cloud
   • Observed 3x FileNotFoundError warnings for log file writes

2. Path comparison experiment:

   # Unsanitized (operation_log.py)
   Path('.pdd/meta') / 'core/cloud_python.json'
   # → .pdd/meta/core/cloud_python.json (tries to create subdirectory)
   
   # Sanitized (sync_determine_operation.py, sync_orchestration.py)
   Path('.pdd/meta') / 'core_cloud_python.json'
   # → .pdd/meta/core_cloud_python.json (flat file)
   
   # Result: Paths don't match - writer and reader use different locations

3. Codebase analysis:

   • Found 16 uses of _safe_basename() across 3 files:
     • sync_determine_operation.py: 6 uses (definition + 5 calls)
     • sync_orchestration.py: 5 uses (imports + 4 calls)
     • pin_example_hack.py: 5 uses (imports + 4 calls)
   • Found 0 uses in operation_log.py (the gap)

Fix Direction

Solution: Add basename sanitization to all three path generation functions in operation_log.py:

Option 1 - Import existing function:

from pdd.sync_determine_operation import _safe_basename

def get_log_path(basename: str, language: str) -> Path:
    ensure_meta_dir()
    return Path(META_DIR) / f"{_safe_basename(basename)}_{language}_sync.log"

Option 2 - Inline sanitization:

def get_log_path(basename: str, language: str) -> Path:
    ensure_meta_dir()
    safe_basename = basename.replace('/', '_')
    return Path(META_DIR) / f"{safe_basename}_{language}_sync.log"

Recommendation: Option 1 (import) is better because:

• Reuses existing, tested function
• Maintains consistency across codebase
• Single source of truth for sanitization logic
• If sanitization logic changes (e.g., handle Windows paths), only one place to update

Files to modify:

• pdd/operation_log.py: Add import and use in 3 functions (lines 25, 31, 37)

Testing strategy:

• Verify pdd sync core/cloud works in CLI mode
• Verify log files are created at correct paths
• Verify fingerprint/run report files match reader expectations
• Verify no FileNotFoundError warnings
• Verify backward compatibility with non-subdirectory basenames

---

Proceeding to Step 5.5: Prompt Classification

[Serhan-Asad]

Step 5.5: Prompt Classification

Classification: Code Bug

DEFECT_TYPE: code

Analysis

This is a code implementation bug, not a prompt defect. The operation_log.py module is infrastructure code that was manually created (not generated from a prompt file) to extract shared logging functionality from sync_orchestration.py (issue #277, PR #282). The module fails to sanitize basenames containing slashes, causing inconsistency with other modules that properly use _safe_basename().

Evidence

• No prompt file exists: operation_log.py is PDD framework infrastructure code, not code generated by PDD from a prompt specification
• Code implements: Path generation functions in operation_log.py:25-40 construct paths using raw basename without sanitization (e.g., .pdd/meta/core/cloud_python.json)
• Other modules implement: sync_determine_operation.py and sync_orchestration.py use _safe_basename() to sanitize basenames (e.g., .pdd/meta/core_cloud_python.json)
• User expects: Consistent behavior - subdirectory basenames like core/cloud should work in both CLI and TUI modes (confirmed in Step 2 as documented, supported feature)

Root Cause

When operation_log.py was created on January 17, 2026 (commit cf008cb), it was implemented 3 weeks after subdirectory basename support was added on December 25, 2025 (commit 0d27e56). The new module was created without awareness of the _safe_basename() function, causing it to construct unsanitized file paths that differ from the sanitized paths used throughout the rest of the codebase.

Conclusion

The code does not correctly implement the intended behavior. The operation_log.py module should use basename sanitization to maintain consistency with other modules and support the documented subdirectory basename feature. Proceeding with test generation.

---

Proceeding to Step 6: Test Plan

[Serhan-Asad]

Step 6: Test Plan

Existing Test Coverage

Test file: tests/test_operation_log.py

Current coverage:

• Path generation functions (get_log_path, get_fingerprint_path, get_run_report_path) - tested with simple basenames only
• Module identity inference from prompt file paths
• Log entry creation, loading, and appending (JSONL format)
• Fingerprint and run report management
• Decorator logic for @log_operation
• Z3 formal verification of identity inference regex
• Regression tests for fingerprint format compatibility

Gap: No tests for subdirectory basenames (e.g., core/cloud) in path generation functions. The existing test test_get_paths only tests simple basenames like test_mod, not basenames containing slashes.

---

Proposed Tests

Test 1: Path sanitization with subdirectory basenames

Purpose: Verify that path generation functions correctly sanitize basenames containing slashes

Input:

• Basename: core/cloud
• Language: python

Expected:

• Log path: .pdd/meta/core_cloud_python_sync.log (underscore, not slash)
• Fingerprint path: .pdd/meta/core_cloud_python.json
• Run report path: .pdd/meta/core_cloud_python_run.json

Actual (before fix):

• Log path: .pdd/meta/core/cloud_python_sync.log (tries to create subdirectory)
• Fingerprint path: .pdd/meta/core/cloud_python.json
• Run report path: .pdd/meta/core/cloud_python_run.json

Test implementation:

def test_get_paths_with_subdirectory_basename(temp_pdd_env):
    """Test path generation with subdirectory basename (issue #429)."""
    basename = "core/cloud"
    lang = "python"
    
    log_path = operation_log.get_log_path(basename, lang)
    fp_path = operation_log.get_fingerprint_path(basename, lang)
    rr_path = operation_log.get_run_report_path(basename, lang)
    
    # All paths should use sanitized basename (slash -> underscore)
    assert log_path == Path(temp_pdd_env) / "core_cloud_python_sync.log"
    assert fp_path == Path(temp_pdd_env) / "core_cloud_python.json"
    assert rr_path == Path(temp_pdd_env) / "core_cloud_python_run.json"
    
    # Verify paths don't contain directory separators in filename
    assert "/" not in log_path.name
    assert "/" not in fp_path.name
    assert "/" not in rr_path.name

---

Test 2: Log writing with subdirectory basename

Purpose: Verify that log entries can be successfully written and read with subdirectory basenames

Input:

• Basename: api/auth
• Language: typescript
• Log entry with test data

Expected:

• Log file created at .pdd/meta/api_auth_typescript_sync.log
• Entry successfully written without FileNotFoundError
• Entry can be read back correctly

Test implementation:

def test_append_log_entry_with_subdirectory_basename(temp_pdd_env):
    """Test writing log entries with subdirectory basename (issue #429)."""
    basename = "api/auth"
    lang = "typescript"
    entry = {"operation": "test", "success": True}
    
    operation_log.ensure_meta_dir()
    # Should NOT raise FileNotFoundError
    operation_log.append_log_entry(basename, lang, entry)
    
    # Verify file exists at sanitized path
    log_path = operation_log.get_log_path(basename, lang)
    assert log_path.exists()
    assert log_path == Path(temp_pdd_env) / "api_auth_typescript_sync.log"
    
    # Verify we can read it back
    entries = operation_log.load_operation_log(basename, lang)
    assert len(entries) == 1
    assert entries[0]["operation"] == "test"

---

Test 3: Fingerprint operations with subdirectory basename

Purpose: Verify fingerprint save/load operations work with subdirectory basenames

Input:

• Basename: backend/utils/credit_helpers
• Language: python

Expected:

• Fingerprint saved to .pdd/meta/backend_utils_credit_helpers_python.json
• Fingerprint can be read by read_fingerprint from sync_determine_operation.py
• Path consistency between writer (operation_log) and reader (sync_determine_operation)

Test implementation:

def test_save_fingerprint_with_subdirectory_basename(tmp_path):
    """Test fingerprint operations with subdirectory basename (issue #429)."""
    from pdd.sync_determine_operation import read_fingerprint
    
    basename = "backend/utils/credit_helpers"
    language = "python"
    
    meta_dir = tmp_path / ".pdd" / "meta"
    meta_dir.mkdir(parents=True)
    
    with patch("pdd.operation_log.META_DIR", str(meta_dir)), \
         patch("pdd.sync_determine_operation.get_meta_dir", return_value=meta_dir):
        
        # Save fingerprint using operation_log
        operation_log.save_fingerprint(
            basename=basename,
            language=language,
            operation="test",
            paths={},
            cost=0.1,
            model="test-model"
        )
        
        # Verify file created with sanitized name
        expected_path = meta_dir / "backend_utils_credit_helpers_python.json"
        assert expected_path.exists()
        
        # Verify sync can read it (path consistency check)
        result = read_fingerprint(basename, language)
        assert result is not None
        assert result.command == "test"

---

Test 4: Edge cases for basename sanitization

Purpose: Test various edge cases for basename sanitization

Input: Multiple edge case basenames:

• a/b/c/d (multiple levels)
• /leading/slash (leading slash)
• trailing/slash/ (trailing slash)
• double//slash (double slash)

Expected: All slashes converted to underscores, no invalid characters in paths

Test implementation:

def test_basename_sanitization_edge_cases(temp_pdd_env):
    """Test edge cases for basename sanitization (issue #429)."""
    test_cases = [
        ("a/b/c/d", "a_b_c_d_python_sync.log"),
        ("deep/nested/module/path", "deep_nested_module_path_python_sync.log"),
    ]
    
    for basename, expected_filename in test_cases:
        log_path = operation_log.get_log_path(basename, "python")
        assert log_path.name == expected_filename
        # Verify no slashes in the filename part
        assert "/" not in log_path.name

---

Test Location

File: tests/test_issue_429.py (new file)

Rationale:

• Following project convention of creating test_issue_<number>.py for bug-specific tests (see test_issue_237.py)
• Keeps issue-specific regression tests organized and traceable
• Makes it easy to reference the original issue for context

Framework: pytest (consistent with existing tests)

---

Notes

1. Fixture reuse: Tests will use the existing temp_pdd_env fixture from test_operation_log.py via pytest's fixture discovery, or define a local one if needed for isolation.

2. Integration with existing tests: The new test_issue_429.py file complements test_operation_log.py by specifically testing the subdirectory basename case that was missing.

3. Cross-module consistency: Test 3 explicitly verifies that paths generated by operation_log.py match what sync_determine_operation.py expects, ensuring reader/writer consistency.

4. Backward compatibility: All existing tests for simple basenames should continue to pass, ensuring the fix doesn't break existing functionality.

5. Test failure behavior: Before the fix, these tests will fail with:

   • Test 1: Assertion failure (paths contain slashes instead of underscores)
   • Test 2: FileNotFoundError when trying to write log
   • Test 3: Fingerprint file not found at expected path
   • Test 4: Assertion failure (slashes not sanitized)

6. Test success behavior: After the fix (adding _safe_basename() sanitization), all tests should pass, confirming the bug is resolved.

---

Proceeding to Step 7: Generate Test

[Serhan-Asad]

Step 7: Generated Test

Test File

tests/test_issue_429.py

Test Code

"""
Tests for Issue #429: Basename sanitization inconsistency causes CLI mode failures

This test suite verifies that operation_log.py correctly sanitizes basenames
containing slashes (/) when generating file paths for logs, fingerprints, and
run reports. The bug causes CLI mode to crash with FileNotFoundError when using
subdirectory basenames like 'core/cloud' because operation_log.py doesn't
sanitize paths, while sync_determine_operation.py and sync_orchestration.py do.

Issue: https://github.com/promptdriven/pdd/issues/429
"""

import json
import pytest
from pathlib import Path
from unittest.mock import patch

from pdd import operation_log


@pytest.fixture
def temp_pdd_env(tmp_path):
    """
    Sets up a temporary PDD_DIR and META_DIR for file operations.
    Patches the module-level constants to use this temp path.
    """
    pdd_dir = tmp_path / ".pdd"
    meta_dir = pdd_dir / "meta"

    with patch("pdd.operation_log.PDD_DIR", str(pdd_dir)), \
         patch("pdd.operation_log.META_DIR", str(meta_dir)):
        yield meta_dir


def test_get_paths_with_subdirectory_basename(temp_pdd_env):
    """
    Test 1: Verify that path generation functions sanitize subdirectory basenames.

    This test directly checks that get_log_path(), get_fingerprint_path(), and
    get_run_report_path() convert slashes to underscores in basenames.

    Before fix: Returns paths like '.pdd/meta/core/cloud_python.json' (tries to
                create subdirectory)
    After fix:  Returns paths like '.pdd/meta/core_cloud_python.json' (flat file)
    """
    basename = "core/cloud"
    lang = "python"

    log_path = operation_log.get_log_path(basename, lang)
    fp_path = operation_log.get_fingerprint_path(basename, lang)
    rr_path = operation_log.get_run_report_path(basename, lang)

    # All paths should use sanitized basename (slash -> underscore)
    assert log_path == Path(temp_pdd_env) / "core_cloud_python_sync.log"
    assert fp_path == Path(temp_pdd_env) / "core_cloud_python.json"
    assert rr_path == Path(temp_pdd_env) / "core_cloud_python_run.json"

    # Verify paths don't contain directory separators in filename
    assert "/" not in log_path.name
    assert "/" not in fp_path.name
    assert "/" not in rr_path.name


def test_append_log_entry_with_subdirectory_basename(temp_pdd_env):
    """
    Test 2: Verify that log entries can be written with subdirectory basenames.

    This test performs a complete write/read cycle to ensure no FileNotFoundError
    occurs when writing log entries with subdirectory basenames.

    Before fix: Raises FileNotFoundError trying to write to non-existent subdirectory
    After fix:  Successfully writes to sanitized path and can read back the entry
    """
    basename = "api/auth"
    lang = "typescript"
    entry = {"operation": "test", "success": True, "timestamp": "2026-01-29T00:00:00"}

    operation_log.ensure_meta_dir()

    # Should NOT raise FileNotFoundError
    operation_log.append_log_entry(basename, lang, entry)

    # Verify file exists at sanitized path
    log_path = operation_log.get_log_path(basename, lang)
    assert log_path.exists()
    assert log_path == Path(temp_pdd_env) / "api_auth_typescript_sync.log"

    # Verify we can read it back
    entries = operation_log.load_operation_log(basename, lang)
    assert len(entries) == 1
    assert entries[0]["operation"] == "test"
    assert entries[0]["success"] is True


def test_save_fingerprint_with_subdirectory_basename(tmp_path):
    """
    Test 3: Verify fingerprint operations work with subdirectory basenames.

    This is a cross-module integration test that verifies paths generated by
    operation_log.py match what sync_determine_operation.py expects when reading.
    This is the core reader/writer mismatch bug.

    Before fix: Writer uses '.pdd/meta/backend/utils/credit_helpers_python.json'
                Reader uses '.pdd/meta/backend_utils_credit_helpers_python.json'
                Result: Reader can't find the file, state desynchronization
    After fix:  Both use '.pdd/meta/backend_utils_credit_helpers_python.json'
    """
    from pdd.sync_determine_operation import read_fingerprint, get_meta_dir

    basename = "backend/utils/credit_helpers"
    language = "python"

    meta_dir = tmp_path / ".pdd" / "meta"
    meta_dir.mkdir(parents=True)

    with patch("pdd.operation_log.META_DIR", str(meta_dir)), \
         patch("pdd.sync_determine_operation.get_meta_dir", return_value=meta_dir):

        # Save fingerprint using operation_log (the writer)
        operation_log.save_fingerprint(
            basename=basename,
            language=language,
            operation="generate",
            paths={"prompt": "prompts/backend/utils/credit_helpers_python.prompt"},
            cost=0.1,
            model="test-model"
        )

        # Verify file created with sanitized name (underscores, not slashes)
        expected_path = meta_dir / "backend_utils_credit_helpers_python.json"
        assert expected_path.exists(), \
            f"Fingerprint file not created at expected path: {expected_path}"

        # Verify the fingerprint file doesn't exist at the unsanitized path
        wrong_path = meta_dir / "backend" / "utils" / "credit_helpers_python.json"
        assert not wrong_path.exists(), \
            f"Fingerprint file should not exist at unsanitized path: {wrong_path}"

        # Verify sync_determine_operation can read it (path consistency check)
        # This is the critical test: reader must find what writer created
        result = read_fingerprint(basename, language)
        assert result is not None, \
            "sync_determine_operation.read_fingerprint() could not find the fingerprint " \
            "file created by operation_log.save_fingerprint() - path mismatch!"
        assert result.command == "generate"
        assert result.cost == 0.1


def test_basename_sanitization_edge_cases(temp_pdd_env):
    """
    Test 4: Verify edge cases for basename sanitization.

    Tests various edge cases to ensure robust sanitization:
    - Multiple levels of nesting (a/b/c/d)
    - Deep nested paths

    All slashes should be converted to underscores, with no invalid characters
    or directory separators in the resulting filenames.
    """
    test_cases = [
        # (basename, expected_log_filename)
        ("a/b/c/d", "a_b_c_d_python_sync.log"),
        ("deep/nested/module/path", "deep_nested_module_path_python_sync.log"),
        ("frontend/components/marketplace", "frontend_components_marketplace_python_sync.log"),
    ]

    for basename, expected_filename in test_cases:
        log_path = operation_log.get_log_path(basename, "python")
        assert log_path.name == expected_filename, \
            f"For basename '{basename}', expected filename '{expected_filename}' " \
            f"but got '{log_path.name}'"

        # Verify no slashes in the filename part
        assert "/" not in log_path.name, \
            f"Filename '{log_path.name}' contains slash - should be sanitized"

        # Verify the file can be written to (no FileNotFoundError)
        operation_log.ensure_meta_dir()
        log_path.write_text('{"test": "data"}\n')
        assert log_path.exists()

What This Test Verifies

This test suite contains 4 focused tests that detect the basename sanitization bug:

1. test_get_paths_with_subdirectory_basename: Directly verifies that get_log_path(), get_fingerprint_path(), and get_run_report_path() return sanitized paths with underscores instead of slashes. Before the fix, this returns paths like .pdd/meta/core/cloud_python.json (tries to create subdirectory). After the fix, it returns .pdd/meta/core_cloud_python.json (flat file).

2. test_append_log_entry_with_subdirectory_basename: Tests the complete write/read cycle to ensure no FileNotFoundError occurs when writing log entries. Before the fix, this raises FileNotFoundError trying to write to a non-existent subdirectory. After the fix, it successfully writes to the sanitized path.

3. test_save_fingerprint_with_subdirectory_basename: Critical cross-module integration test that verifies paths generated by operation_log.py match what sync_determine_operation.py expects when reading. This is the exact reader/writer mismatch described in the bug report. Before the fix, the writer creates a file at one path but the reader looks at a different path, causing state desynchronization.

4. test_basename_sanitization_edge_cases: Tests various edge cases including deeply nested paths like a/b/c/d to ensure robust sanitization across all scenarios.

Why these tests fail on buggy code:

• Test 1 fails with path assertion showing core/cloud_python_sync.log instead of core_cloud_python_sync.log
• Test 2 fails with FileNotFoundError when trying to write to unsanitized path
• Test 3 fails because the fingerprint file is not created at the expected sanitized path, causing read_fingerprint() to return None
• Test 4 fails showing only the last component is used (d_python_sync.log instead of a_b_c_d_python_sync.log)

Running the Test

# Run all tests for issue #429
pytest tests/test_issue_429.py -v

# Run a specific test
pytest tests/test_issue_429.py::test_get_paths_with_subdirectory_basename -v

# Current results (on buggy code):
# FAILED tests/test_issue_429.py::test_get_paths_with_subdirectory_basename
# FAILED tests/test_issue_429.py::test_append_log_entry_with_subdirectory_basename  
# FAILED tests/test_issue_429.py::test_save_fingerprint_with_subdirectory_basename
# FAILED tests/test_issue_429.py::test_basename_sanitization_edge_cases
# 4 failed in 1.66s

---

Proceeding to Step 8: Verification

[Serhan-Asad]

Step 8: Verification Complete

Test Execution

============================= test session starts ==============================
platform darwin -- Python 3.12.7, pytest-8.3.5, pluggy-1.6.0
collected 4 items

tests/test_issue_429.py::test_get_paths_with_subdirectory_basename FAILED [ 25%]
tests/test_issue_429.py::test_append_log_entry_with_subdirectory_basename FAILED [ 50%]
tests/test_issue_429.py::test_save_fingerprint_with_subdirectory_basename FAILED [ 75%]
tests/test_issue_429.py::test_basename_sanitization_edge_cases FAILED    [100%]

=================================== FAILURES ===================================
__________________ test_get_paths_with_subdirectory_basename ___________________

Test 1 - Path Sanitization Verification:
Expected: .pdd/meta/core_cloud_python_sync.log (underscore)
Actual:   .pdd/meta/core/cloud_python_sync.log (slash)
→ CONFIRMS: Path generation functions do not sanitize basenames

_______________ test_append_log_entry_with_subdirectory_basename _______________

Test 2 - Log Writing:
Warning: Failed to write to log file .pdd/meta/api/auth_typescript_sync.log: 
[Errno 2] No such file or directory
→ CONFIRMS: FileNotFoundError when attempting to write logs

_______________ test_save_fingerprint_with_subdirectory_basename _______________

Test 3 - Cross-Module Consistency:
Warning: Failed to save fingerprint to .pdd/meta/backend/utils/credit_helpers_python.json
AssertionError: Fingerprint file not created at expected path: 
.pdd/meta/backend_utils_credit_helpers_python.json
→ CONFIRMS: Reader expects sanitized path, writer creates unsanitized path

____________________ test_basename_sanitization_edge_cases _____________________

Test 4 - Edge Cases:
AssertionError: For basename 'a/b/c/d', expected filename 'a_b_c_d_python_sync.log' 
but got 'd_python_sync.log'
→ CONFIRMS: Path() constructor treats slashes as directory separators

4 failed in 1.54s

Verification Status

PASS: Test correctly detects the bug ✓

All 4 tests fail as expected, each demonstrating a different symptom of the basename sanitization bug:

1. test_get_paths_with_subdirectory_basename: Direct assertion shows paths contain slashes instead of underscores
2. test_append_log_entry_with_subdirectory_basename: FileNotFoundError when attempting write operations
3. test_save_fingerprint_with_subdirectory_basename: Writer/reader path mismatch causing state desynchronization
4. test_basename_sanitization_edge_cases: Deep nesting edge case shows Path() treats slashes as separators

Summary

Step	Result
1. Duplicate Check	✓ No duplicates found
2. Documentation Check	✓ Confirmed bug (subdirectory basenames are supported)
3. Triage	✓ Sufficient information to proceed
4. Reproduction	✓ Bug reproduced successfully
5. Root Cause Analysis	✓ Root cause identified (timing issue in development)
5.5. Prompt Classification	✓ Code bug (not prompt defect)
6. Test Plan	✓ 4-test plan designed
7. Test Generation	✓ Tests created in tests/test_issue_429.py
8. Verification	✓ All tests fail correctly, detecting the bug

Bug Details

• Location: pdd/operation_log.py:25-40
• Root Cause: Path generation functions (get_log_path, get_fingerprint_path, get_run_report_path) do not sanitize basenames containing slashes, while other modules use _safe_basename() to convert slashes to underscores
• Test File: tests/test_issue_429.py

Technical Analysis

The Bug:
When operation_log.py was created on January 17, 2026 (3 weeks after subdirectory basename support was added), it was implemented without using the existing _safe_basename() function. This causes:

• Unsanitized path construction: Path(META_DIR) / f"{basename}_{language}.json"
• For basename "core/cloud": Creates .pdd/meta/core/cloud_python.json (tries to create subdirectory)
• Expected behavior: Should create .pdd/meta/core_cloud_python.json (flat file)

Impact:

• CLI mode fails with FileNotFoundError
• TUI mode works (uses _safe_basename())
• Reader/writer use different file paths
• State tracking breaks for subdirectory basenames

Test Coverage:
The 4 generated tests comprehensively verify:

1. Direct path generation correctness
2. Write operation functionality
3. Cross-module consistency (integration test)
4. Edge cases with deep nesting

Next Steps

1. Fix the bug at pdd/operation_log.py:25-40 by importing and using _safe_basename():

   from pdd.sync_determine_operation import _safe_basename
   
   def get_log_path(basename: str, language: str) -> Path:
       ensure_meta_dir()
       return Path(META_DIR) / f"{_safe_basename(basename)}_{language}_sync.log"
   
   def get_fingerprint_path(basename: str, language: str) -> Path:
       ensure_meta_dir()
       return Path(META_DIR) / f"{_safe_basename(basename)}_{language}.json"
   
   def get_run_report_path(basename: str, language: str) -> Path:
       ensure_meta_dir()
       return Path(META_DIR) / f"{_safe_basename(basename)}_{language}_run.json"

2. Run the test to confirm the fix: pytest -xvs tests/test_issue_429.py

3. Run full test suite to check for regressions: pytest tests/

4. Submit PR with fix and test

---

Proceeding to Step 9: E2E Tests

[Serhan-Asad]

Step 9: E2E Test

Environment Discovery

• Repository language: Python
• Test framework: pytest
• Existing E2E tests found: Yes - 17 E2E test files in tests/ directory following pattern test_e2e_*.py
• Test configuration: pytest.ini with e2e marker defined
• Fixtures/helpers used: conftest.py with common fixtures (tmp_path, monkeypatch from pytest)
• Environment variables required: None for this test (uses mocked paths)
• Auth/credentials: Not applicable for this test (filesystem-only)

E2E Test File

tests/test_e2e_issue_429_subdirectory_basename.py

Test Type

Integration test (exercises multiple modules together without LLM calls)

What This Test Verifies

This E2E test verifies the reader-writer consistency bug at a system integration level. It tests that:

1. Path sanitization: operation_log.py converts slashes to underscores in file paths
2. Write operations succeed: No FileNotFoundError when writing with subdirectory basenames
3. Reader-writer consistency: Files written by operation_log.py can be read by sync_determine_operation.py
4. Edge cases: Deeply nested basenames (multiple slashes) are fully sanitized

Unlike the unit tests which mock dependencies, this E2E test:

• Imports and calls the actual functions from both modules
• Verifies the cross-module integration (writer → filesystem → reader)
• Tests the full file I/O path without mocking the filesystem

Test Code

"""
E2E Test for Issue #429: Basename Sanitization in CLI Mode

This test verifies that subdirectory basenames (e.g., 'core/cloud') work correctly
in CLI mode by ensuring that operation_log.py creates files at sanitized paths
matching what sync_determine_operation.py expects to read.

Root cause: operation_log.py was missing basename sanitization, causing:
- CLI mode to crash with FileNotFoundError
- Reader/writer path mismatch between modules
- TUI mode to work while CLI mode fails

This E2E test exercises path generation functions directly without LLM calls.

Run with: pytest tests/test_e2e_issue_429_subdirectory_basename.py -v
"""

# [Full test code - 4 test methods totaling ~330 lines]
# See file: tests/test_e2e_issue_429_subdirectory_basename.py

Test Execution Result

============================= test session starts ==============================
collected 4 items

tests/test_e2e_issue_429_subdirectory_basename.py::TestIssue429SubdirectoryBasenameE2E::test_subdirectory_basename_path_sanitization FAILED [ 25%]
tests/test_e2e_issue_429_subdirectory_basename.py::TestIssue429SubdirectoryBasenameE2E::test_write_operations_with_subdirectory_basename FAILED [ 50%]
tests/test_e2e_issue_429_subdirectory_basename.py::TestIssue429SubdirectoryBasenameE2E::test_reader_writer_consistency FAILED [ 75%]
tests/test_e2e_issue_429_subdirectory_basename.py::TestIssue429SubdirectoryBasenameE2E::test_deeply_nested_basename FAILED [100%]

=================================== FAILURES ===================================
# Test 1: Path sanitization
AssertionError: Log path not sanitized!
  Expected: .pdd/meta/core_cloud_python_sync.log  (underscore)
  Got: .pdd/meta/core/cloud_python_sync.log        (slash)
  Bug: operation_log.py is not sanitizing basename 'core/cloud'

# Test 2: Write operations  
AssertionError: Log file not created at sanitized path
Files in meta dir: []
Captured stdout: Warning: Failed to save fingerprint to [...]/core/cloud_python.json: 
[Errno 2] No such file or directory

# Test 3: Reader-writer consistency
AssertionError: Reader/writer path mismatch!
  Writer (operation_log.save_fingerprint) created fingerprint,
  but Reader (sync_determine_operation.read_fingerprint) returned None.
  This indicates the two modules are using different file paths.
  Files in meta dir: []
Captured stdout: Warning: Failed to save fingerprint [...]: FileNotFoundError

# Test 4: Deep nesting
AssertionError: Deep nesting not fully sanitized in log path!
  Expected: .pdd/meta/a_b_c_d_python_sync.log  (all slashes → underscores)
  Got: .pdd/meta/a/b/c/d_python_sync.log        (only last part sanitized)

E2E Test Status

PASS: E2E test correctly detects the bug ✓

All 4 tests fail as expected, each demonstrating a different aspect of the bug:

1. Path sanitization test: Confirms operation_log.py returns unsanitized paths with slashes
2. Write operations test: Confirms FileNotFoundError occurs when trying to write to unsanitized paths
3. Reader-writer consistency test: Confirms the exact bug scenario - writer fails to create files, reader returns None
4. Deep nesting test: Confirms edge case where multiple slashes aren't all sanitized

The E2E tests will pass once the fix is implemented (adding basename sanitization to operation_log.py).

---

Proceeding to Step 10: Create Draft PR

[Serhan-Asad]

Step 10: Draft PR Created

Pull Request

PR #431: Add failing tests for basename sanitization bug (#429)

Branch

fix/issue-429

What's Included

• Failing unit test at tests/test_issue_429.py (4 test cases)
• Failing E2E test at tests/test_e2e_issue_429_subdirectory_basename.py (4 test cases)
• Commits: 1

Test Coverage Summary

Unit Tests (tests/test_issue_429.py)

1. test_get_paths_with_subdirectory_basename - Verifies path generation functions sanitize slashes to underscores
2. test_append_log_entry_with_subdirectory_basename - Tests complete write/read cycle without FileNotFoundError
3. test_save_fingerprint_with_subdirectory_basename - Verifies cross-module consistency between operation_log.py and sync_determine_operation.py
4. test_basename_sanitization_edge_cases - Tests edge cases with deeply nested paths (a/b/c/d)

E2E Tests (tests/test_e2e_issue_429_subdirectory_basename.py)

1. test_subdirectory_basename_path_sanitization - Path generation verification
2. test_write_operations_with_subdirectory_basename - Write operations succeed without errors
3. test_reader_writer_consistency - Cross-module integration testing
4. test_deeply_nested_basename - Edge case with multiple slashes

All 8 tests currently FAIL as expected, confirming they correctly detect the bug.

Next Steps for Maintainers

1. Review the failing tests to understand the expected behavior
2. Implement the fix at pdd/operation_log.py:25-40
3. Verify both unit and E2E tests pass with your fix
4. Run full test suite to check for regressions
5. Mark the PR as ready for review

PDD Fix Command

To auto-fix this bug using PDD, you'll need to:

Prerequisites:

1. Copy the required prompt file from pdd_cap repository to this worktree
2. Ensure all <include> dependencies are also copied

Command:

cd /Users/serhanasad/Desktop/SF/pdd/.pdd/worktrees/fix-issue-429
pdd --force fix --loop --max-attempts 5 --verification-program context/operation_log_example.py <prompt_file> pdd/operation_log.py tests/test_issue_429.py

Note: The prompt file for operation_log.py must be obtained from the pdd_cap repository before running this command. Check the prompt for any <include> tags and copy those files as well.

Bug Fix Summary

Location: pdd/operation_log.py:25-40

Fix: Import and use the existing _safe_basename() function in all three path generation functions:

• get_log_path() (line 25)
• get_fingerprint_path() (line 31)
• get_run_report_path() (line 37)

Expected change:

from pdd.sync_determine_operation import _safe_basename

def get_log_path(basename: str, language: str) -> Path:
    ensure_meta_dir()
    return Path(META_DIR) / f"{_safe_basename(basename)}_{language}_sync.log"

---

Investigation complete. A draft PR with failing tests has been created and linked to this issue.

[Serhan-Asad]

Step 1: Unit Test Execution (Cycle 1)

Status: All Tests Pass ✓

Unit Tests Identified

• tests/test_issue_429.py::test_get_paths_with_subdirectory_basename
• tests/test_issue_429.py::test_append_log_entry_with_subdirectory_basename
• tests/test_issue_429.py::test_save_fingerprint_with_subdirectory_basename
• tests/test_issue_429.py::test_basename_sanitization_edge_cases

Initial Test Results

• Passed: 3
• Failed: 1

The failing test (test_save_fingerprint_with_subdirectory_basename) had a test bug where it checked for a cost attribute that doesn't exist on the Fingerprint class.

Code Analysis

The fix has already been applied to pdd/operation_log.py:

• Added sanitize_basename() function at line 25-27
• Modified get_log_path() to use sanitize_basename() at line 33
• Modified get_fingerprint_path() to use sanitize_basename() at line 40
• Modified get_run_report_path() to use sanitize_basename() at line 47

The implementation uses inline sanitization (basename.replace('/', '_')) rather than importing _safe_basename() from sync_determine_operation.py, but the functionality is identical.

Test Fix Applied

Fixed the test bug in test_save_fingerprint_with_subdirectory_basename by removing the incorrect assertion:

# Removed: assert result.cost == 0.1
# The Fingerprint class doesn't have a cost attribute

Final Test Results

• Passed: 4
• Failed: 0

All unit tests for issue #429 now pass successfully.

pdd fix Status

No pdd fix runs were needed because the code fix was already implemented in pdd/operation_log.py. The only issue was a test bug which has been corrected.

---

Proceeding to Step 2: E2E Test Check