skills/casemark/skills/amicus-brief

amicus-brief

SKILL.md

Amicus Brief

Draft or evaluate U.S. appellate amicus briefs that add a distinct, rule-compliant perspective.

Prerequisites

Gather before starting:

  1. Case posture, issues presented, and parties' arguments or briefs
  2. Amicus identity, constituency, and concrete stake in outcome
  3. Applicable rules (FRAP 29, state equivalent, or SCOTUS Rule 37) and local formatting requirements
  4. Consent status or plan for motion for leave; filing deadline
  5. Legal authorities and any empirical or policy materials to cite

Quick Start

Select mode:

Mode Trigger Output
Drafting Creating a new brief Full brief with all required sections
Analysis Reviewing an existing brief Structured critique with compliance table

Drafting Workflow

- [ ] Confirm jurisdiction and rule set (federal, state, SCOTUS)
- [ ] Verify consent or prepare motion for leave
- [ ] Identify unique contribution — do not duplicate party arguments
- [ ] Build authority map: controlling precedent, persuasive precedent, statutes, secondary sources
- [ ] Integrate expertise or policy evidence with clear sourcing
- [ ] Draft sections in required order; verify word/page limits
- [ ] Add disclosure statements, certificates, and signatures
- [ ] Run compliance pass: Bluebook, formatting, service, ECF rules

Required Sections (adapt to court rules)

  • Table of Contents
  • Table of Authorities
  • Statement of Interest
  • Summary of Argument
  • Argument (headed sections)
  • Conclusion
  • Certificates and disclosures

Argument Structure

Section Purpose
Interest Establish legitimacy and why amicus perspective matters
Summary One page max — unique thesis and outcome requested
Argument 2–4 points, each tied to controlling law and practical impact
Conclusion Clear request for disposition or rule adoption

Template

[Cover / Caption]

TABLE OF CONTENTS
TABLE OF AUTHORITIES

STATEMENT OF INTEREST
[Amicus constituency, expertise, direct stake.]

CONSENT / LEAVE STATUS
[Consent or motion for leave.]

SUMMARY OF ARGUMENT
[Thesis and outcome sought.]

ARGUMENT
I. [Legal principle + unique perspective]
II. [Policy/technical evidence tied to law]
III. [Practical consequences or administrability]

CONCLUSION
[Requested disposition.]

DISCLOSURE OF AUTHORSHIP AND FUNDING
[FRAP 29(a)(4)(E) / SCOTUS Rule 37.6.]

CORPORATE DISCLOSURE STATEMENT
[If required.]

CERTIFICATE OF COMPLIANCE
[Word count method and total.]

CERTIFICATE OF SERVICE
[Method, date, recipients.]

Analysis Workflow

- [ ] Identify distinct contribution; check for duplication of party arguments
- [ ] Assess credibility and fit of amicus interest
- [ ] Evaluate authority strength and citation accuracy
- [ ] Flag new issues not raised by parties
- [ ] Check rule compliance and formatting
- [ ] Summarize core arguments and policy impacts

Rule Compliance Checks

Verify for the specific court:

Requirement Confirm
Consent or leave Parties' consent filed or motion for leave prepared
Timing Filing deadline — often 7 days after supported party's principal brief [VERIFY]
Length Word/page limits for amicus briefs [VERIFY]
Disclosure Authorship and funding (FRAP 29(a)(4)(E); SCOTUS Rule 37.6)
Corporate disclosure Entity disclosure if required (FRAP 26.1 or local equivalent)
Service Proper service on all parties with proof
Format Font, spacing, margins, cover color, ECF requirements

Pitfalls

  • Duplicating party briefs — add distinct law, data, or consequences only
  • Introducing new issues — frame extra-record materials as legislative facts or policy context
  • Citation errors — use Bluebook format; verify every authority
  • Advocacy excess — keep tone neutral, precise, judicially useful
  • Ignoring local rules — jurisdictional rules override FRAP/SCOTUS defaults
  • Confidential information — redact or omit anything not in the public record
Weekly Installs
2
Repository
casemark/skills
GitHub Stars
5
First Seen
11 days ago
Installed on
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