[Bug] Anthropic API Error: cache_control cannot be set for empty text blocks

Bug Description
[Image #1] ⎿ API Error: 400 messages.238.content.3.text: cache_control cannot be set for empty text blocks

Environment Info

• Platform: win32
• Terminal: vscode
• Version: 2.1.138
• Feedback ID: 53bd91bb-a64b-4a53-82f2-76639af3a558

Errors

[{"error":"Error: Failed to create shell snapshot: Command failed: C:\\Program Files\\Git\\bin\\bash.exe -c -l SNAPSHOT_FILE='C:\\Users\\bossvibe\\.claude\\shell-snapshots\\snapshot-bash-1778309966200-c2633s.sh'\n      source \"C:\\Users\\bossvibe\\.bashrc\" < /dev/null\n\n      # First, create/clear the snapshot file\n      echo \"# Snapshot file\" >| \"$SNAPSHOT_FILE\"\n\n      # When this file is sourced, we first unalias to avoid conflicts\n      # This is necessary because aliases get \"frozen\" inside function definitions at definition time,\n      # which can cause unexpected behavior when functions use commands that conflict with aliases\n      echo \"# Unset all aliases to avoid conflicts with functions\" >> \"$SNAPSHOT_FILE\"\n      echo \"unalias -a 2>/dev/null || true\" >> \"$SNAPSHOT_FILE\"\n\n      \n      echo \"# Functions\" >> \"$SNAPSHOT_FILE\"\n\n      # Force autoload all functions first\n      declare -f > /dev/null 2>&1\n\n      # Now get user function names - filter completion functions (single underscore prefix)\n      # but keep double-underscore helpers (e.g. __zsh_like_cd from mise, __pyenv_init)\n      declare -F | cut -d' ' -f3 | grep -vE '^_[^_]' | while read func; do\n        # Encode the function to base64, preserving all special characters\n        encoded_func=$(declare -f \"$func\" | base64 )\n        # Write the function definition to the snapshot\n        echo \"eval \\\"\\$(echo '$encoded_func' | base64 -d)\\\" > /dev/null 2>&1\" >> \"$SNAPSHOT_FILE\"\n      done\n    \n      echo \"# Shell Options\" >> \"$SNAPSHOT_FILE\"\n      shopt -p | head -n 1000 >> \"$SNAPSHOT_FILE\"\n      set -o | grep \"on\" | awk '{print \"set -o \" $1}' | head -n 1000 >> \"$SNAPSHOT_FILE\"\n      echo \"shopt -s expand_aliases\" >> \"$SNAPSHOT_FILE\"\n    \n      echo \"# Aliases\" >> \"$SNAPSHOT_FILE\"\n      # Filter out winpty aliases on Windows to avoid \"stdin is not a tty\" errors\n      # Git Bash automatically creates aliases like \"alias node='winpty node.exe'\" for\n      # programs that need Win32 Console in mintty, but winpty fails when there's no TTY\n      if [[ \"$OSTYPE\" == \"msys\" ]] || [[ \"$OSTYPE\" == \"cygwin\" ]]; then\n        alias | grep -v \"='winpty \" | sed 's/^alias //g' | sed 's/^/alias -- /' | head -n 1000 >> \"$SNAPSHOT_FILE\"\n      else\n        alias | sed 's/^alias //g' | sed 's/^/alias -- /' | head -n 1000 >> \"$SNAPSHOT_FILE\"\n      fi\n  \n\n      \n      # Check for rg availability\n      echo \"# Check for rg availability\" >> \"$SNAPSHOT_FILE\"\n      echo \"if ! (unalias rg 2>/dev/null; command -v rg) >/dev/null 2>&1; then\" >> \"$SNAPSHOT_FILE\"\n  \n      cat >> \"$SNAPSHOT_FILE\" << 'RIPGREP_FUNC_END'\n  function rg {\n  local _cc_bin=\"${CLAUDE_CODE_EXECPATH:-}\"\n  [[ -x $_cc_bin ]] || _cc_bin=/c/Users/bossvibe/.local/bin/claude.exe\n  if [[ ! -x $_cc_bin ]]; then command rg \"$@\"; return; fi\n  if [[ -n $ZSH_VERSION ]]; then\n    ARGV0=rg \"$_cc_bin\" \"$@\"\n  elif [[ \"$OSTYPE\" == \"msys\" ]] || [[ \"$OSTYPE\" == \"cygwin\" ]] || [[ \"$OSTYPE\" == \"win32\" ]]; then\n    ARGV0=rg \"$_cc_bin\" \"$@\"\n  elif [[ $BASHPID != $$ ]]; then\n    exec -a rg \"$_cc_bin\" \"$@\"\n  else\n    (exec -a rg \"$_cc_bin\" \"$@\")\n  fi\n}\nRIPGREP_FUNC_END\n    \n      echo \"fi\" >> \"$SNAPSHOT_FILE\"\n  \n\n      # Add PATH to the file\n      cat >> \"$SNAPSHOT_FILE\" << 'PATH_END_1bqor1y40tu'\nexport PATH='/c/Users/bossvibe/bin:/mingw64/bin:/usr/local/bin:/usr/bin:/bin:/mingw64/bin:/usr/bin:/c/Users/bossvibe/bin:/c/WINDOWS/system32:/c/WINDOWS:/c/WINDOWS/System32/Wbem:/c/WINDOWS/System32/WindowsPowerShell/v1.0:/c/WINDOWS/System32/OpenSSH:/c/Program Files/NVIDIA Corporation/NVIDIA App/NvDLISR:/c/Program Files (x86)/NVIDIA Corporation/PhysX/Common:/cmd:/c/Program Files/nodej…

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