Version: v3.23.14
API Provider: anthropic
Model: sonnet-3.5

What happened?

The apply_diff tool does not warn models when only one SEARCH/REPLACE block is used, missing opportunities for batching multiple related changes.

Expected behavior

When only one SEARCH/REPLACE block is detected, the tool should warn models that multiple blocks can be more efficient.

Steps to reproduce

1. Use apply_diff with only one SEARCH/REPLACE block - no efficiency warning appears for the model
2. Compare with read_file tool which warns models when only one file is read

Additional context

The read_file tool already implements similar efficiency warnings when only one file is read, encouraging models to read multiple files simultaneously for better LLM context efficiency. The apply_diff tool should follow the same pattern.