codex - 💡(How to fix) Fix Codex CLI validates plugin-prefixed skill names against 64-char SKILL name limit, causing valid curated skills to be skipped

Skipped loading 8 skill(s) due to invalid SKILL.md files.

.../skills/uml-and-software-architecture-visualization/SKILL.md: invalid name: exceeds maximum length of 64 characters
.../skills/typescript-data-visualization-engineering/SKILL.md: invalid name: exceeds maximum length of 64 characters
.../skills/geospatial-and-cartographic-visualization/SKILL.md: invalid name: exceeds maximum length of 64 characters
.../skills/dashboards-and-real-time-visualization/SKILL.md: invalid name: exceeds maximum length of 64 characters
.../skills/grammar-of-graphics-and-declarative-visualization/SKILL.md: invalid name: exceeds maximum length of 64 characters
.../skills/accessibility-and-inclusive-visualization/SKILL.md: invalid name: exceeds maximum length of 64 characters
.../skills/statistical-and-uncertainty-visualization/SKILL.md: invalid name: exceeds maximum length of 64 characters
.../skills/scrollytelling-and-parallax-data-visualization/SKILL.md: invalid name: exceeds maximum length of 64 characters

### Root-cause analysis

I investigated locally and found that the raw name: field inside the affected SKILL.md files is not over 64 characters.

Example:

- uml-and-software-architecture-visualization = 43 chars

The failure matches exactly if Codex validates the plugin-prefixed skill name instead:

- build-web-data-visualization:uml-and-software-architecture-visualization = 72 chars
- build-web-data-visualization:grammar-of-graphics-and-declarative-visualization = 78 chars

This also matches the boundary behavior:

- build-web-data-visualization:data-visualization = 47 chars -> loads
- build-web-data-visualization:react-and-nextjs-data-visualization = 64 chars -> loads
- build-web-data-visualization:visualization-strategy-and-critique = 64 chars -> loads
- names above 64 chars are skipped

So the bug appears to be that Codex CLI applies the 64-char skill name validation to the qualified form plugin_name:skill_name, instead of validating only the name: frontmatter field.


### What steps can reproduce the bug?

1. Install Codex CLI 0.135.0.
2. Use the curated `build-web-data-visualization` plugin bundle.
3. Start Codex.
4. Observe that several skills are skipped with `invalid name: exceeds maximum length of 64 characters`.
5. Open one affected `SKILL.md` and confirm its raw frontmatter `name` is below 64 chars.
6. Prefix that same name with `build-web-data-visualization:` and observe the resulting qualified name exceeds 64 chars.


### What is the expected behavior?

Curated skills whose raw SKILL.md frontmatter name is valid should load successfully, even if the display name or qualified plugin-prefixed name exceeds 64 characters.


### Additional information

I also found these strings embedded in the local Codex binary:

- Skipped loading ... skill(s) due to invalid SKILL.md files
- Skills from this plugin are prefixed with ...

That strongly suggests the plugin prefixing is part of the internal skill loading path.