Answer With Invalidity Contentions includes a dedicated installation section; pricing or quota commentary. The SKILL.md runs to about 949 words, in the catalog's typical mid-range.
Answer With Invalidity Contentions sits in the General category under the legal-compliance sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.
These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.
Combined answer and Patent Local Rule 3-3 invalidity contentions for a patent defendant — responds to each complaint allegation while building the invalidity record for trial.
Answer With Invalidity Contentions is a community-contributed Claude Code skill in the legal-compliance sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/answer-with-invalidity-contentions/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when representing a defendant in the pleadings phase of federal patent litigation who must respond to an infringement suit and assert prior art, anticipation, obviousness, or § 112 defenses.
The Answer With Invalidity Contentions Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 93,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/answer-with-invalidity-contentions curl -L https://claudskills.com/skills/answer-with-invalidity-contentions/SKILL.md \ -o ~/.claude/skills/answer-with-invalidity-contentions/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/answer-with-invalidity-contentions/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/answer-with-invalidity-contentions/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\answer-with-invalidity-contentions\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
SKILL.md from the source repository to ~/.claude/skills/answer-with-invalidity-contentions/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Answer With Invalidity Contentions is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{answer-with-invalidity-contentions-2026,
author = {CaseMark},
title = {Answer With Invalidity Contentions [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/answer-with-invalidity-contentions/}
}Browse all General skills in the ClaudSkills registry, or explore these other picks from the same category:
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SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.