Codex App skips loading curated plugin skills due to metadata validation limits

What version of the Codex App are you using (From “About Codex” dialog)?

Codex CLI: 0.130.0-alpha.5, Codex App : 26.601.21317

What subscription do you have?

GPT Plus

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

When starting Codex App / Codex CLI, it prints a warning:

Skipped loading 10 skill(s) due to invalid SKILL.md files.

The affected skills are from curated plugins under:

C:\Users\Administrator\.codex\plugins\cache\openai-curated\build-web-data-visualization\5e86d584\skills\
C:\Users\Administrator\.codex\plugins\cache\openai-curated\heygen\5e86d584\skills\

The log shows 8 skills from build-web-data-visualization failing with:

invalid name: exceeds maximum length of 64 characters

Examples:

build-web-data-visualization:accessibility-and-inclusive-visualization
build-web-data-visualization:dashboards-and-real-time-visualization
build-web-data-visualization:geospatial-and-cartographic-visualization
build-web-data-visualization:grammar-of-graphics-and-declarative-visualization
build-web-data-visualization:scrollytelling-and-parallax-data-visualization
build-web-data-visualization:statistical-and-uncertainty-visualization
build-web-data-visualization:typescript-data-visualization-engineering
build-web-data-visualization:uml-and-software-architecture-visualization

I checked the SKILL.md files. The raw name field itself does not exceed 64 characters, but the effective plugin-prefixed skill name appears to exceed the 64-character limit. For example:

build-web-data-visualization:grammar-of-graphics-and-declarative-visualization

has length 78.

The log also shows 2 HeyGen skills failing with:

invalid description: exceeds maximum length of 1024 characters

The affected files are:

heygen-avatar\SKILL.md
heygen-video\SKILL.md

I measured their description lengths locally:

heygen-avatar: 1383 characters
heygen-video: 1596 characters

What steps can reproduce the bug?

Feedback ID: 019e8ae1-c348-7f63-9c59-7a53d35f8c66

1. Enable the following curated plugins:

• build-web-data-visualization@openai-curated
• heygen@openai-curated

1. Start Codex App or Codex CLI on Windows.

1. Observe the startup warning:

Skipped loading 10 skill(s) due to invalid SKILL.md files.

1. Check the Codex TUI log:

C:\Users\Administrator\.codex\log\codex-tui.log

1. The log contains entries similar to:

failed to load skill ...\build-web-data-visualization\5e86d584\skills\accessibility-and-inclusive-visualization\SKILL.md: invalid name: exceeds maximum length of 64 characters

failed to load skill ...\heygen\5e86d584\skills\heygen-avatar\SKILL.md: invalid description: exceeds maximum length of 1024 characters

Feedback ID from issue URL:

019e8ae1-c348-7f63-9c59-7a53d35f8c66

What is the expected behavior?

Bundled or curated OpenAI plugin skills should load without validation warnings.

If plugin-prefixed skill names are subject to the 64-character limit, curated plugin skill names should be shortened upstream, or the validation should account for plugin prefixes differently.

If descriptions are limited to 1024 characters, curated plugin SKILL.md descriptions should stay within that limit.

Additional information

This appears to be an upstream curated plugin metadata issue rather than a local project issue.

Current config has both plugins enabled:

[plugins."build-web-data-visualization@openai-curated"]
enabled = true

[plugins."heygen@openai-curated"]
enabled = true

Workaround: disable these two plugins, but this also removes their functionality.