Skills on AI

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Legal Brief Writing

Use when asked to write a legal brief — a persuasive written argument presenting facts, legal issues, and analysis to a court or decision-maker — building on legal-research's findings into a structured, persuasive document.

A legal brief is a written argument submitted to a court (or another decision-maker) presenting the facts, the legal issues, and the requesting party's analysis of how the law applies — a structured, persuasive document built on top of Legal Research's findings.

Common structure

  • Statement of facts — a clear, accurate account of the relevant facts, presented persuasively but without misrepresentation.
  • Statement of issues — the specific legal question(s) the brief addresses.
  • Argument — the legal analysis, applying relevant statutes and case law to the facts, organized around the strongest points.
  • Conclusion — a clear statement of the relief or ruling requested.

Persuasive writing principles

  • Lead with the strongest argument, not chronologically or by procedural order — readers (including judges) form impressions early.
  • Address counterarguments directly rather than ignoring them — an argument that doesn't acknowledge an opposing party's strongest point looks evasive, not confident.
  • Write for a busy, expert reader — clear, direct prose that gets to the point serves a brief far better than dense, jargon-heavy writing.
  • Cite precisely — every factual and legal assertion should be traceable to its source; imprecise or unsupported citation undermines credibility on every other point in the brief.

Common pitfalls

  • Burying the strongest argument — organizing by chronology or procedural history rather than argument strength, leaving the most persuasive point for last (or omitted from a summary a reader skims).
  • Overstating the facts or the law — even minor overstatement, once caught, damages credibility on every other claim in the document.
  • Ignoring the strongest counterargument — a brief that doesn't address the opposing side's best point looks like it's hoping no one notices, rather than confidently rebutting it.
  • Citation errors — an incorrect or outdated citation (see Legal Research's currency-checking discipline) can undermine an otherwise strong argument.

Learn more

View legal-brief-writing/SKILL.md on GitHub