* fix(#1326): stop emitting Codex agents/openai.yaml sidecars; clean up stale ones
Codex installs wrote an agents/openai.yaml sidecar under every managed gsd-*
skill dir. Recent Codex builds index both SKILL.md and the sidecar, so each
GSD skill appeared twice in autocomplete (canonical gsd-* name + humanized
display_name).
- Replace writeCodexSkillMetadataFiles / generateCodexSkillMetadataYaml with
cleanupCodexSkillMetadataSidecars: Codex-only (if isCodex), removes stale
managed gsd-*/agents/openai.yaml and prunes the now-empty agents/ dir.
- Preserve user-owned dirs (gsd-dev-preferences), non-empty agents/ dirs, and
non-gsd dirs; lstat-guard against symlinked agents/ so a delete can never
escape the skills tree; fail-open per directory.
- Codex relies on SKILL.md alone for /skills discovery.
- Update USER-GUIDE/FEATURES docs and rewrite the #774 emission tests into
cleanup tests.
Scope: the sidecar duplicate only. The separate multi-root (~/.agents/skills
shared-skills) duplicate facet is a distinct concern, not addressed here.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* chore(#1326): add changeset for Codex sidecar cleanup
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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