skills/legal/counterclaim-crossclaim/SKILL.md
Drafts court-ready counterclaims and crossclaims for commercial litigation. Analyzes case documents, classifies compulsory vs. permissive counterclaims, ensures procedural compliance with federal/state rules, and structures causes of action with proper element pleading. Use when a defendant must assert affirmative claims against the plaintiff or crossclaims against co-defendants during pleadings.
npx skillsauth add casemark/skills counterclaim-crossclaimInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Drafts counterclaim and/or crossclaim pleadings asserting a defendant's affirmative claims against the plaintiff or co-defendants, satisfying procedural and substantive pleading requirements.
| Task | Details | |------|---------| | Extract identifiers | Court, caption, case number, party designations | | Build timeline | Formation → performance → breach → damages → plaintiff's wrongful conduct | | Identify counterclaim targets | Same transaction/occurrence (compulsory) or related matters (permissive) | | Identify crossclaim targets | Co-defendants liable under contribution, indemnification, or independent theories | | Catalog damages | Specific amounts, dates, causation chain, continuing damages |
Structure the pleading with these sections in order:
Caption — Mirror original complaint; add Counterclaimant/Counter-Defendant/Cross-Claimant/Cross-Defendant designations; title "COUNTERCLAIM AND CROSSCLAIM" (or separate documents per local rules)
Introductory Statement — Filing party, capacity, authorizing rule (FRCP 13/state equivalent), compulsory/permissive nature; for crossclaims: co-defendant targets and legal basis
Jurisdictional Allegations — Subject matter jurisdiction, supplemental jurisdiction (28 U.S.C. § 1367) [VERIFY], amount in controversy, venue
Parties — Full identification with transaction roles; crossclaim defendants: describe liability-creating relationship
Factual Allegations (numbered paragraphs) — Incorporate admissions from complaint by reference; deny/qualify inaccurate allegations; present new facts chronologically; allege damages with specificity (nature, timing, causation, amount)
Causes of Action (separately numbered counts) — Format: "COUNT [N]: [Legal Theory] ([Counterclaim/Crossclaim] Against [Party])". Each count: incorporate factual paragraphs by reference, satisfy each element, cite controlling authority, include theory-specific allegations (fault percentage for contribution, indemnification clause for contractual indemnity)
Prayer for Relief — Compensatory damages, punitive damages (if authorized), injunctive/declaratory relief, attorney's fees (cite basis), pre/post-judgment interest, catch-all clause; separate subsections for counterclaim vs. crossclaim relief
Verification (if required) — Party declaration under penalty of perjury
Signature Block — Attorney name, bar number, firm, contact; "Attorney for Defendant/Counterclaimant/Cross-Claimant [Name]"
Certificate of Service — All parties/counsel, addresses, method, date
| Claim | Required Elements | |-------|-------------------| | Breach of Contract | Formation → terms → performance → breach → causation → damages | | Fraud | False statement → materiality → scienter → reliance → causation → damages (plead with particularity) | | Contribution | Common liability → proportionate fault → right to apportion | | Contractual Indemnity | Indemnification clause → triggering event → covered claims → notice | | Common Law Indemnity | Special relationship → passive vs. active fault → right to shift liability | | Unjust Enrichment | Benefit conferred → knowledge → inequity of retention |
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