Individual skill
ylj-preemption-check
Use when verifying that a The Yale Law Journal (YLJ) claim is genuinely novel and not preempted by prior scholarship. It runs the systematic SSRN/Westlaw/HeinOnline search and writes the "what's new" paragraph; it does not draft the thesis (use ylj-thesis-and-contribution).
Yale-Law-Journal-Skills/skills/ylj-preemption-check/SKILL.md
Source commit 932eb23331721b16e967c59f093781be1928b498
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- Yes
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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Repository context
- Repository stars (not skill ratings)
- 1,405
- Repository last updated
- Sep 27, 2026
- License
- MIT
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# Preemption Check (ylj-preemption-check)
In legal academia, **preemption** means someone already published your claim. A YLJ piece that repeats
an existing argument is dead on arrival — student editors and the faculty they consult are reading the
same SSRN feeds. This skill runs the search systematically and turns the result into the manuscript's
"what's new" paragraph. It assumes the claim is already sharp (`ylj-thesis-and-contribution`).
## When to trigger
- The thesis is sharp and you must confirm no one has made it
- A reviewer/colleague says "didn't so-and-so already argue this?"
- You are about to write the "contribution" paragraph of the introduction
- You need to distinguish your claim from a *close* existing piece, not just confirm absence
