The claude and gemini hooks (since #522/#1987) double-quote a resolved graphify path containing spaces, but _install_codex_hook embedded the resolver output raw. On a checkout path like 'D:/Project V2/.venv/Scripts/graphify.EXE', every shell that runs the hook (Git Bash on Windows to cmd.exe to POSIX sh) word-splits the command at the first space: the guard can never fire, and #2165's subcommand-parsing test splits at the same space and fails.
Mirror _claude_pretooluse_hooks/_gemini_hook with the same two-line guard: bare-name (project-scoped, #3129) installs are unaffected, as is any absolute path without spaces. test_codex_hook_command_is_a_real_cli_subcommand now parses hook commands with shlex.split instead of naive .split(), and a new regression test installs all three hosts under a spaced resolver output, proves argv[0] survives intact, and re-verifies uninstall recognition of the quoted entry.
(cherry picked from commit 87e997d3a0)
Amar Kumar Thakur
0aa256f95f