GPT-5 finding
Undefined FORK_DEFAULT_BRANCH used to fetch aeon.yml from the fork
- skills/contributor-spotlight/SKILL.md
- skills/contributor-spotlight/SKILL.md
The script later references ${FORK_DEFAULT_BRANCH} when fetching the fork's aeon.yml, but it never assigns that variable. Although default_branch is retrieved into /tmp/contrib-repo.json, it isn't parsed into an environment variable, causing the aeon.yml fetch to use an empty ref (or literal) and likely fail, resulting in empty ENABLED_SKILLS and incorrect outputs.
Recommendation
After writing /tmp/contrib-repo.json, extract default_branch into FORK_DEFAULT_BRANCH, e.g.: FORK_DEFAULT_BRANCH=$(jq -r '.default_branch // ""' /tmp/contrib-repo.json). Fail gracefully if empty.