skill-creator validator fails when PyYAML is not available globally
Author: carlos-algmsCreated Jul 31, 2026Updated Aug 28, 2026
Summary
The bundled skill-creator validator fails before validation when PyYAML is not installed globally.
No dependency setup is documented or included with the bundled skill.
Reproduction
Run:
python3 ~/.codex/skills/.system/skill-creator/scripts/quick_validate.py \
~/.codex/skills/.system/skill-creator
Actual result
ModuleNotFoundError: No module named 'yaml'
Expected result
The bundled validator runs without undocumented global dependencies.
Impact
- Documented validation workflow cannot run
- Codex Desktop and CLI affected when their selected Python lacks
PyYAML
Environment
- macOS 26.5.2
- Codex CLI 0.145.0
- Python 3.14.6 from Homebrew
Source: openai/skills