Codex fails to load a valid `SKILL.md` when front matter `description` exceeds 1024 characters.

Resolved 💬 2 comments Opened Mar 8, 2026 by rainbow-stone Closed Mar 8, 2026

What version of Codex CLI is running?

0.111.0

What subscription do you have?

Plus

Which model were you using?

gpt-5.3-codex

What platform is your computer?

Windows

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

Powershell

What issue are you seeing?

invalid description: exceeds maximum length of 1024 characters

What steps can reproduce the bug?

  1. Create/update a skill with valid YAML front matter:

``yaml
---
name: test-skill
description: "<a string longer than 1024 characters>"
---
``

  1. Start/reload Codex skill loading.
  1. Observe load result.

What is the expected behavior?

_No response_

Additional information

_No response_

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