ggml-org/llama.cpp b12253

on GitHub

common : escape control characters in tool argument strings (#31937)

normalize_quotes_to_json copies raw control characters verbatim while
converting pythonic tool arguments to JSON, so calls like
python(code='ab') produce invalid JSON in the arguments returned to
clients; replaying that history then fails hard. Escape C0 control
characters inside quoted strings via escape_json_string_inner.