Cannot run tool commands including bash commands, works briefly after restart

What version of Codex CLI is running?

0.143.0

What subscription do you have?

Plus

Which model were you using?

gpt-5.5

What platform is your computer?

Linux 7.0.14-3-pve x86_64 unknown

What terminal emulator and version are you using (if applicable)?

Has happened both through remote connection from android app and via termux on android ssh to the machine.

Codex doctor report

What issue are you seeing?

Intermittent tool dispatch regression on codex-cli 0.143.0.
Expected: exec_command
Observed: unsupported call: exec_commandexec_command
Reproduces in fresh sessions and clean CODEX_HOME.
Single identical calls sometimes succeed and sometimes
fail.

What steps can reproduce the bug?

Uploaded thread: 019f4490-be3e-79f0-b155-9943a5db49bb

What is the expected behavior?

Tool calls succeed.

Additional information

_No response_