Citations Skill
SkillDev toolsAutomatically adds user-provided links and citations to docs/research/references.md. Use this skill whenever the user shares a URL, paper, blog post, or external reference that should be recorded.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the Citations Skill skill
What this skill tells your AI
The instructions your AI receives, as published by matteing/opal in .claude/skills/citations/SKILL.md and read by ahel’s review.
When the user provides a link or citation, add it to docs/research/references.md automatically.
Rules
- Categorize — place the reference under the most appropriate existing
##section. Create a new section only if nothing fits. - Format — use the existing bullet style:
- [Title](URL) — One-sentence description. (source-context) - Deduplicate — if the URL already exists in the file, update the description instead of adding a duplicate.
- TODO section — if the reference is speculative or needs further review, place it under the
## TODOsection at the bottom instead. - No prompting — do not ask the user whether to add the reference. Just add it.
Signals
- GitHub stars
- 59
- Forks
- 2
- Last commit
- Aug 2026
- Hacker News mentions
- 20
Advanced
- Catalog kind
- skill
- Gateway key
citations- Source
- github.com/matteing/opal