detect_changes fails on Windows paths with spaces ("project path contains invalid characters") #138

Bug Report

Version: v0.5.6 (2026-03-23)
Platform: Windows 11 Home (amd64), Git Bash

Problem

detect_changes returns "project path contains invalid characters" when the project path contains spaces.

Steps to Reproduce

1. Index a project at a path with spaces:

index_repository(repo_path="C:\Users\abish\OneDrive - PomeGran Inc\Files\kpi-dashboard")

✅ Succeeds — 6,256 nodes, 10,255 edges

2. Call detect_changes:

detect_changes(project="C-Users-abish-OneDrive - PomeGran Inc-Files-kpi-dashboard", depth=2)

❌ Returns: "project path contains invalid characters"

Expected

detect_changes should handle paths with spaces, same as the other 12 working tools.

Working Tools (same path)

All of these work correctly with the same space-containing path:

• index_repository ✅
• list_projects ✅
• index_status ✅
• get_graph_schema ✅
• get_architecture ✅
• search_graph ✅
• trace_call_path ✅
• get_code_snippet ✅
• query_graph ✅
• manage_adr ✅
• ingest_traces ✅

Only detect_changes and search_code (#133) fail.

Likely Cause

detect_changes probably shells out to git diff without properly quoting the root_path that contains spaces. Similar to previously fixed issues #80, #121.

Environment

• OS: Windows 11 Home 10.0.28020
• Shell: Git Bash (MSYS2)
• Path: C:\Users\abish\OneDrive - PomeGran Inc\Files\kpi-dashboard
• Binary: ~/.local/bin/codebase-memory-mcp.exe