@olaservo Thanks for the detailed review! I've addressed the implementation issues:

Fixed: compareContent parameter now works

Before: The parameter was accepted but ignored — comparison always used size/mtime.

After:

• compareContent=false (default): Uses size/mtime for quick comparison
• compareContent=true: Reads and compares actual file contents byte-by-byte

When compareContent=true:

• Files with identical content but different timestamps are correctly reported as identical (content is what matters)
• Files with different content but same size are correctly detected as different (no false positives)

Implementation details

Added compareFileContents() helper that:

1. Reads both files as buffers (parallel via Promise.all)
2. Early exit if sizes differ
3. Uses Buffer.equals() for efficient byte-by-byte comparison

Why this belongs in core filesystem server

While directory comparison could theoretically be composed by an LLM using existing tools, this argument applies to many other tools already in the server (e.g., search_files, get_file_info). The practical reality:

1. Performance: Comparing two directories with 1000 files each would require:

   • 2× directory_tree calls
   • Potentially hundreds of read_file calls for content comparison
   • Thousands of tokens and significant time

2. Atomicity: The comparison needs to be consistent (directory state shouldn't change mid-comparison)

3. Real-world usage: Directory comparison is a fundamental filesystem operation — essential for backups, deployments, sync operations, and integrity verification

4. Ecosystem gap: FAR is Windows-only and not scriptable. Most developers lack a cross-platform directory comparison tool that integrates with their workflow

This follows the pattern of other "composed" tools already in the server — providing efficient, atomic operations that would be impractical to build from lower-level primitives.

Commits:

• 5ea9b667 — Implement content comparison in compareDirectories
• 96172ba9 — Add tests for compareContent parameter

All tests pass with npm test. The changes are minimal and focused on fixing the unused parameter issue while maintaining backward compatibility.