Functional Scars: From Repeated Agent Errors to Runtime Controls
On Windows, Claude Code's Bash tool halves runs of backslashes before bash reads the command, except runs right before a double quote. Our coding agent kept breaking Python files it patched through shell heredocs, even with the trap written into its memory. This walkthrough turns that correction into a hook, then measures what changed across 102,298 shell calls, including what the block cost.