Bad tool calling
Resolved 💬 1 comment Opened Jul 9, 2026 by carlo-ottolina Closed Jul 9, 2026
What version of Codex CLI is running?
codex-cli 0.143.0
What subscription do you have?
PLUS
Which model were you using?
gpt-5.5
What platform is your computer?
Microsoft Windows NT 10.0.26200.0 x64
What terminal emulator and version are you using (if applicable)?
Ubuntu WSL2
Codex doctor report
What issue are you seeing?
Codex CLI: 0.143.0
Model: gpt-5.5
OS: Ubuntu su WSL2
Prompt: Create a file test.txt containing 'test'
Generated tool name: apply_patchapply_patch
Error: unsupported tool call
Control test: gpt-5.4 works
What steps can reproduce the bug?
Create a file test.txt containing 'test'
What is the expected behavior?
file created
Additional information
errore unsupported tool call the tool generated is apply_patchapply_patch instead of apply_patch
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