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fix: quote argument-hint YAML values so Copilot CLI ≥1.0.65 loads all skills (closes #68) - #69
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… skills `argument-hint: [foo]` YAML-parses as a flow sequence (array), not a string. Downstream slash-command loaders that validate `argument-hint` as a string — notably GitHub Copilot CLI ≥ 1.0.65 — silently reject the skill on load, and the command disappears from the CLI menu. Wrap the value in double quotes so it parses as a string. No behaviour change on Claude Code.
This was referenced Jul 21, 2026
EndlessBlueWJL
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Sep 19, 2026
Correction to my earlier description: I originally claimed these four files
carry TWO invalid frontmatter values. That was wrong, and I verified it:
- argument-hint unquoted with "key: value" inside a flow sequence
-> the actual and only cause of the parse failure
- description containing raw ASCII double quotes
-> VALID YAML, not a fault
Evidence (yaml package parser, upstream main):
original -> fails
fix description only -> still fails
fix argument-hint only -> parses, all fields present
fix both -> parses
So �rgument-hint alone is sufficient; the description's ASCII quotes parse
fine (checked with the quotes left in place: description length 127, 10 ASCII
double quotes, no error).
This PR therefore changes only the four argument-hint values, and additionally
pairs the ASCII quotes in description as a cosmetic consistency pass. The
cosmetic part is optional and can be dropped without affecting the fix.
Upstream main still has the unquoted argument-hint in:
skills/cheat-learn-from/SKILL.md
skills/cheat-predict/SKILL.md
skills/cheat-publish/SKILL.md
skills/cheat-retro/SKILL.md
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Closes #68.
Summary
Purely mechanical single-character transform to 7 file(s): wrap the value after
argument-hint:in double quotes so YAML parses it as a string instead of a flow-sequence array. Fixes GitHub Copilot CLI ≥ 1.0.65 silently dropping the skill.Bare
[...]is YAML flow-sequence syntax → the loader receives["foo"](a list), fails itsstrvalidation, and rejects the SKILL without an error. Claude Code, VS Code Agent Skills, and every other loader documentargument-hintas a string; the quoted-string form is what all reference docs show.Files (7)
skills/cheat-trends/SKILL.mdskills/cheat-migrate/SKILL.mdskills/cheat-persona/SKILL.mdskills/cheat-recommend/SKILL.mdskills/cheat-seed/SKILL.mdskills/cheat-init/SKILL.mdSKILL.mdVerification
yaml.safe_loadon every changed frontmatter reportsargument-hintasstrargument-hint:lines remain in these files"or\, so bare double-quote wrapping is safeSources
argument-hintdocumented as a string